112-572: The sockeye salmon ( Oncorhynchus nerka ), also called red salmon , kokanee salmon , blueback salmon , or simply sockeye , is an anadromous species of salmon found in the Northern Pacific Ocean and rivers discharging into it. This species is a Pacific salmon that is primarily red in hue during spawning. They can grow up to 84 cm (2 ft 9 in) in length and weigh 2.3 to 7 kg (5–15 lb). Juveniles remain in freshwater until they are ready to migrate to
224-399: A 1 kiloton of TNT (4.2 TJ) nuclear bomb dropped on Frenchman Flat on January 27, 1951. The last atmospheric test was conducted on July 17, 1962, and the underground testing of weapons continued until September 23, 1992. The location is known for having the highest concentration of nuclear-detonated weapons in the U.S. Over 80% of the state's area is owned by the federal government. This
336-402: A U.S. state, just behind Arizona's 128 °F (53 °C) reading and California's 134 °F (57 °C) reading. The vegetation of Nevada is diverse and differs by state area. Nevada contains six biotic zones : alpine , sub-alpine , ponderosa pine , pinion-juniper , sagebrush and creosotebush . Nevada is divided into political jurisdictions designated as counties . Carson City
448-580: A county in 1856 by Utah Territorial Legislature and again in 1861 by the new Nevada Legislature. Clark County is the most populous county in Nevada, accounting for nearly three-quarters of its residents. Las Vegas, Nevada's most populous city, has been the county seat since the county was created in 1909 from a portion of Lincoln County, Nevada . Before that, it was a part of Arizona Territory. Clark County attracts numerous tourists: An estimated 44 million people visited Clark County in 2014. Washoe County
560-538: A dark red hue during the breeding season, which also corresponds with the breeding season of sockeye salmon. Competition with introduced lake trout can lead to a decline in kokanee populations during the summer. Lake trout are predatory and will eat young kokanee. Predation by lake trout accounted for 83 percent of the 88 percent decline in kokanee populations in Lake Chelan, Washington. Other factors such as pollution, habitat loss, and warming global temperatures put
672-484: A female or for longevity on the spawning grounds. Sockeye salmon with longer and more difficult migration routes produce fewer eggs on the spawning grounds. High water temperatures also increase the energy expenditure of sockeye salmon as they migrate upriver. Aggressive behavior displayed by dominant males is predominantly directed towards intruding dominant males. Sometimes sockeye salmon males behave aggressively towards subordinate males. These encounters are short, with
784-475: A few ways. The black kokanee breeds in March at a depth of 30–40 feet, while sockeye salmon breed in the fall and have a different number of gill rakers than the kokanee. In addition, the black kokanee is much darker in color than the sockeye or any other kokanee population. The fish has been introduced to different lakes around Japan for commercial fishing practices. It seems that commercial captive breeding programs ,
896-694: A habitat. Stranding is when salmon swim into dry land or shallow water during their migration for spawning and die from suffocation. In fact, studies show that the sockeye salmon with the largest bodies are most susceptible to stranding mortality. Reproduction is marked by depletion in energy stores. Fat, protein, and somatic energy stores decrease from the final moments in marine migration through freshwater entry, spawning, and death. Sockeye salmon do not feed during reproduction. Feeding ends once they enter into freshwater, which can be several months before spawning. Embryos are maintained with only endogenous food supplies for about 3–8 months. Reproduction in
1008-721: A landlocked variety termed black kokanee, or " kunimasu " in Japanese, was deemed to be extinct after 1940, when a hydroelectric project made its native lake in northern Akita Prefecture more acidic. The species seems to have been saved by transferring eggs to Saiko Lake , 500 kilometers to the south, however. This fish has been treated as a subspecies of sockeye Oncorhynchus nerka kawamurae , or even an independent species Oncorhynchus kawamurae . Sockeye salmon use patterns of limnetic feeding behavior, which encompasses vertical movement, schooling , diel feeding chronology , and zooplankton prey selectivity. They can change their position in
1120-420: A large ice melt created a series of freshwater lakes and rivers across the northern part of North America. While some members of the salmon and trout family ( salmonids ) went out to sea ( anadromous ), others stayed behind in fresh water (non-anadromous). The separation of the sockeye and the kokanee created a unique example of sympatric speciation that is relatively new in evolutionary terms. While they occupy
1232-408: A population of 3,104,614 at the 2020 U.S. census . In 2022, the estimated population of Nevada was 3,177,772, an increase of 73,158 residents (2.36%) since the 2020 census . Nevada had the highest percentage growth in population from 2017 to 2018. At the 2020 census, 6.0% of the state's population were reported as under 5, 22.5% were under 18, and 16.1% were 65 or older. Females made up about 49.8% of
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#17328453671081344-651: A size of up to 51 centimetres (20 in) and weigh 1.4–2.3 kilograms (3–5 lb). The largest documented kokanee, caught by hand in Lower Arrow Lake in British Columbia in 2015, weighed 5.5 kilograms (12.1 lb). Adult kokanee can be found in open water where the thermocline is around 10 °C (50 °F). They can have anywhere between 29–40 gill rakers. As a fish that inhabits freshwater throughout their lifecycle they are often smaller than their sea-going sockeye relatives, due to less food availability. Size
1456-797: A spot on their tail or back. Sockeye salmon range as far south as the Columbia River in the eastern Pacific (although individuals have been spotted as far south as the 10 Mile River on the Mendocino Coast of California ) and in northern Hokkaidō Island in Japan in the western Pacific. They range as far north as the Bathurst Inlet in the Canadian Arctic in the east and the Anadyr River in Siberia in
1568-692: A state boundary at just over 400 miles (640 km). This line begins in Lake Tahoe nearly 4 miles (6.4 km) offshore (in the direction of the boundary), and continues to the Colorado River where the Nevada, California, and Arizona boundaries merge 12 miles (19 km) southwest of the Laughlin Bridge. The largest mountain range in the southern portion of the state is the Spring Mountain Range , just west of Las Vegas. The state's lowest point
1680-750: A subordinate male will move quickly into the redd and release their sperm. Nearby dominant males from other redds will also do this. Male social status is positively correlated to length and dorsal hump size. Larger females tend to spawn in shallower water, which is preferred over deeper water. There is a dramatic sexual dimorphism at maturity. Males go through numerous morphological changes at maturation including, an increase in body depth, hump height, and snout length. Snout size also increases in females, but hump height and adipose fin length do not increase. This could mean that longer snout sizes are sexually selected, but hump height and adipose fin length are not. Females develop large gonads that are about 25% of
1792-423: A vote. The Nevadan pronunciation is the one used by the state legislature. At one time, the state's official tourism organization, TravelNevada, stylized the name of the state as "Nevăda", with a breve over the a indicating the locally preferred pronunciation, which was also available as a license plate design until 2007. Before the arrival of Europeans, the earliest inhabitants were Indigenous tribes including
1904-574: Is a landlocked state in the Western region of the United States . It borders Oregon to the northwest, Idaho to the northeast, California to the west, Arizona to the southeast, and Utah to the east. Nevada is the seventh-most extensive , the 32nd-most populous , and the ninth-least densely populated U.S. state. Nearly three-quarters of Nevada's population live in Clark County , which contains
2016-606: Is almost entirely within the Basin and Range Province and is broken up by many north–south mountain ranges. Most of these ranges have endorheic valleys between them. Much of the northern part of the state is within the Great Basin , a mild desert that experiences hot temperatures in the summer and cold temperatures in the winter. Occasionally, moisture from the Arizona Monsoon will cause summer thunderstorms; Pacific storms may blanket
2128-523: Is along the Colorado River, south of Laughlin. Nevada has 172 mountain summits with 2,000 feet (610 m) of prominence. Nevada ranks second, after Alaska, for the greatest number of mountains in the United States, followed by California, Montana, and Washington. Nevada is the driest state in the United States. It is made up of mostly desert and semi-arid climate regions, and, with the exception of
2240-540: Is commemorated by Nevada Historical Markers 57 and 58 in Lincoln and Nye counties. Eight days before the presidential election of 1864 , Nevada became the 36th state in the Union, despite lacking the minimum 60,000 residents that Congress typically required a potential state to have in order to become a state. At the time, Nevada's population was little more than 40,000. Governor Nye was frustrated that previous attempts to send
2352-536: Is considered a subspecies of the sockeye salmon by some, or even a separate species Oncorhynchus kawamurae , and occurs naturally in Lakes Akan and Chimikeppu on Hokkaido Island . The creation of a dam caused the extermination of the fish by changing the lake pH . As a result, the kokanee was believed to have gone extinct in the 1940s. In 2011 a few fish were found in an isolated lake on Mount Fuji . The Japanese kokanee varies from its sea-going sockeye relative in
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#17328453671082464-434: Is determined by the number of eggs she lays, her body size, and the survival of the eggs, which is due in part to the quality of the nest environment. Male spatial distribution depends on shifts in reproductive opportunities, physical traits of breeding sites, as well as the operational sex ratio (OSR) of the environment. Non-dominant males adopt a subordinate behavior, acting as a satellite to mated pairs. During spawning,
2576-400: Is mainly because homesteads were not permitted in large enough sizes to be viable in the arid conditions that prevail throughout desert Nevada. Instead, early settlers would homestead land surrounding a water source, and then graze livestock on the adjacent public land, which is useless for agriculture without access to water (this pattern of ranching still prevails). The COVID-19 pandemic
2688-454: Is not within the boundaries of any county). The tourism industry remains Nevada's largest employer, with mining continuing as a substantial sector of the economy: Nevada is the fourth-largest producer of gold in the world. Nevada is the driest state, and has been influenced by climate change , droughts in Nevada have been increasing in frequency and severity, putting a further strain on Nevada's water security . The name "Nevada" comes from
2800-442: Is officially a consolidated municipality, meaning it legally functions as both a city and a county. As of 1919, there were 17 counties in the state, ranging from 146 to 18,159 square miles (380 to 47,030 km ). Lake County , one of the original nine counties formed in 1861, was renamed Roop County in 1862. Part of the county became Lassen County, California , in 1864, resolving border uncertainty. In 1883, Washoe County annexed
2912-913: Is red-fish name in the Sinixt Interior Salish language and silver trout in the Okanagan language . They are much smaller than the anadromous variety and are rarely over 35 cm (14 in) long. In the Okanagan Lake and many others, there are two kinds of kokanee populations – one spawns in streams and the other near lake shores. Landlocked populations occur in the Yukon Territory and British Columbia in Canada , as well as, in Alaska , Washington , Oregon , California , New York , Utah , Idaho , Montana , Nevada , Colorado , New Mexico , and Wyoming in
3024-511: Is sometimes called red or blueback salmon, due to its color. Sockeye are blue tinged with silver in color while living in the ocean. When they return to spawning grounds, their bodies become red and their heads turn green. Sockeye can be anywhere from 60 to 84 cm (2 ft 0 in – 2 ft 9 in) in length and weigh from 2.3 to 7 kg (5–15 lb). Two distinguishing features are their long, serrated gill rakers that range from 30 to 40 in number, and their lack of
3136-502: Is the most significant morphological distinction between the kokanee and the sockeye, but gill raker count can differ from sockeye salmon as well. The main food source of this fish is plankton. "Kokanee have blue backs and silver sides and unlike other salmon and trout, except chum salmon, sockeye and kokanee lack distinct dark spots on their backs and tail fins. In addition, when compared to other trout, they have finer scales, larger eyes, and deeply forked tail". The typical life cycle of
3248-449: Is the non- anadromous form of the sockeye salmon (meaning that they do not migrate to the sea, instead living out their entire lives in freshwater). There is some debate as to whether the kokanee and its sea-going relative are separate species; geographic isolation, failure to interbreed, and genetic distinction point toward a recent divergence in the history of the two groups. The divergence most likely occurred around 15,000 years ago when
3360-664: Is the second-most populous county of Nevada. Its county seat is Reno . Washoe County includes the Reno–Sparks metropolitan area . Lyon County is the third most populous county. It was one of the nine original counties created in 1861. It was named after Nathaniel Lyon , the first Union General to be killed in the Civil War . Its current county seat is Yerington . Its first county seat was established at Dayton on November 29, 1861. There are 68 designated wilderness areas in Nevada, protecting some 6,579,014 acres (2,662,433 ha) under
3472-456: Is the usual color of females. Even small changes in wavelength , saturation , and brightness can affect preference. Some traits that lead to reproductive success, such as body size and sexual dimorphism can affect one's survival. This leads to opposing pressures of natural selection and sexual selection . Larger males are favored, unless the risk of predation is very high. Sockeye salmon that die prematurely from predation are typically
Sockeye salmon - Misplaced Pages Continue
3584-564: Is under review by Fisheries and Oceans Canada as part of its Wild Salmon Policy strategy to standardize monitoring of wild salmon status. Salmon runs of particular note are the Skeena and Nass river runs, and the most famous is the Fraser River sockeye run. The Fraser River salmon run has experienced declines in productivity since the 1990s, mirroring a similar decline in the 1960s. The return abundance (population) of Fraser River sockeye in 2009
3696-466: Is when species emphasize their differences in diet and habitat to avoid competition. Interspecific competition can affect the growth rates of the salmon if their access to resources is limited. The total registered fisheries harvest of the sockeye in 2010 was some 170,000 tonnes , of which 115,000 tonnes were from the United States and the rest was equally divided between Canada and Russia. This corresponds to some 65 million fish in all, and to some 19% of
3808-733: The Goshute , Southern Paiute , Mohave , and Wašišiw ( Washoe people ). Francisco Garcés was the first European in the area. Nevada was annexed as a part of the Spanish Empire in the northwestern territory of New Spain . Administratively, the area of Nevada was part of the Commandancy General of the Provincias Internas in the Viceroyalty of New Spain. Nevada became a part of Alta California (Upper California) province in 1804 when
3920-634: The Greek ὄγκος (onkos) meaning "barb", and ῥύγχος (rhynchos) meaning "snout". Nerka is the Russian name for the anadromous form. The name "sockeye" is an anglicization of suk-kegh (sθə́qəy̓), its name in Halkomelem , the language of the indigenous people along the lower reaches of the Fraser River (one of British Columbia 's many native Coast Salish languages ). Suk-kegh means "red fish". The sockeye salmon
4032-801: The Humboldt Sink near Lovelock . Several rivers drain from the Sierra Nevada eastward, including the Walker , Truckee , and Carson rivers. All of these rivers are endorheic basins , ending in Walker Lake , Pyramid Lake , and the Carson Sink , respectively. However, not all of Nevada is within the Great Basin. Tributaries of the Snake River drain the far north, while the Colorado River , which also forms much of
4144-883: The Kamchatka Peninsula of the Russian Far East , especially on the Ozernaya River of the Kurile Lake , which accounts for nearly 90% of all Asian sockeye salmon production, and is recognized as the largest spawning ground outside of Alaska. Illegal fishing in Kamchatka is subject to environmental concern. Sockeye is almost never farmed. A facility in Langley, BC harvested its first salmon in March 2013, and continues to harvest farmed salmon from its inland facility. United States sockeye salmon populations are currently listed under
4256-526: The Kluane National Park and Reserve . The park has outlawed fishing of kokanee, and it is illegal to possess a kokanee salmon. Conservation efforts have been largely successful with 4,660 kokanee spawning in the park in 2015. It is unclear as to why the kokanee population crashed in the mid and late 2000s. Nevada Nevada ( / n ə ˈ v æ d ə , - v ɑː -/ nə- VAD -ə, - VAH - , Spanish: [neˈβaða] )
4368-527: The Lake Sammamish kokanee listed as a separate species and therefore endangered failed the US Fish and Wildlife criteria to be listed as a distinct species. The current IUCN red list standing of sockeye salmon ( Oncohynchus nerka ), which does not distinguish kokanee, is of least concern. Even so, King County, Washington , in partnership with US Fish and Wildlife , has issued conservation measures to save
4480-483: The Las Vegas Valley , the average summer diurnal temperature range approaches 40 °F (22 °C) in much of the state. While winters in northern Nevada are long and fairly cold, the winter season in the southern part of the state tends to be of short duration and mild. Most parts of Nevada receive scarce precipitation during the year. The most rain that falls in the state falls on the east and northeast slopes of
4592-486: The Las Vegas–Paradise metropolitan area , including three of the state's four largest incorporated cities. Nevada's capital is Carson City . Las Vegas is the largest city in the state. Nevada is officially known as the "Silver State" because of the importance of silver to its history and economy. It is also known as the "Battle Born State" because it campaigned during its relatively brief territorial status as
Sockeye salmon - Misplaced Pages Continue
4704-526: The Nevada Territory (1861–1864), then quickly achieved statehood during the American Civil War (1861–1865), (the words "Battle Born" also appear on its state flag ); due to the 16th presidency of Abraham Lincoln (1809–1865, served 1861–1865). The federal Union benefited immensely economically translated into military necessity from the support of newly awarded statehood as the 36th state by
4816-503: The Sierra Nevada . The average annual rainfall per year is about 7 inches (180 mm); the wettest parts get around 40 inches (1,000 mm). Nevada's highest recorded temperature is 125 °F (52 °C) at Laughlin on June 29, 1994, and the lowest recorded temperature is −50 °F (−46 °C) at San Jacinto on January 8, 1937. Nevada's 125 °F (52 °C) reading is the third highest statewide record high temperature of
4928-507: The Spanish language , referring to Nevada's small overlap with the Sierra Nevada mountain range on its western edge; however, the rest of Nevada is largely desert and semi-arid , much of it within the central Great Basin region. Areas south of the Great Basin are within the Mojave Desert shared with Southern California , while the high altitude of Lake Tahoe and the Sierra Nevada lie on
5040-609: The United States . Nantahala Lake is the only place in North Carolina where kokanee salmon are found. The fish, which is native to western North America, was stocked in Nantahala Lake in the mid-1960s by the NC Wildlife Resources Commission in an attempt to establish the species as a forage fish for other predator fishes in the lake. This stock has remained and become a favorite target for anglers. In Japan,
5152-694: The Utah Territory and New Mexico Territory , then the Nevada Territory (March 2, 1861; named for the Sierra Nevada ). The first discovery of a major U.S. deposit of silver ore occurred in Comstock Lode under Virginia City, Nevada , in 1859. On March 2, 1861, the Nevada Territory separated from the Utah Territory and adopted its current name, shortened from The Sierra Nevada (Spanish for "snow-covered mountain range"). The 1861 southern boundary
5264-426: The fry typically rear in lakes before migrating to the ocean. Males partake in competitive and sneaking tactics, formation of hierarchies , and non-hierarchical groupings around females who are ready to mate. Reproductive success varies more in males than females. The greater variability in male reproduction is associated with the greater average size and exaggerated shape of males. Reproductive success in females
5376-420: The ocean , over distances of up to 1,600 km (1,000 mi). Their diet consists primarily of zooplankton . Sockeye salmon are semelparous , dying after they spawn . Some populations, referred to as kokanee , do not migrate to the ocean and live their entire lives in fresh water. The sockeye salmon is the third-most common Pacific salmon species, after pink and chum salmon . Oncorhynchus comes from
5488-499: The quality , but not the length , of the latter pronunciation is closer to the Spanish pronunciation (Spanish /a/ is open central [ä] , whereas American English /ɑː/ varies from back [ɑː] to central [äː] ), it is not the pronunciation used by Nevadans. State Assemblyman Harry Mortenson proposed a bill to recognize the alternative pronunciation of Nevada, though the bill was not supported by most legislators and never received
5600-686: The Californias were split. With the Mexican War of Independence won in 1821, the province of Alta California became a territory (state) of Mexico, with a small population. Jedediah Smith entered the Las Vegas Valley in 1827, Peter Skene Ogden traveled the Humboldt River in 1828, and in 1829 a merchant from Nuevo México named Antonio Armijo streamlined travel along the Old Spanish Trail . Chronicling Armijo's route his scout Raphael Rivera
5712-571: The Chilko River and Weaver Creek did not show any differences in force-frequency response of the heart or cardiac pumping capacity when reared in common garden temperatures at 5 °C and 14 °C. Therefore, the physiology underlying these differences in thermal tolerance has yet to be determined. Kokanee salmon The kokanee salmon ( Oncorhynchus nerka ), also known as the kokanee trout , little redfish , silver trout , kikanning , Kennerly's salmon , Kennerly's trout , or Walla ,
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#17328453671085824-509: The Colorado River, essentially all of present-day Nevada south of the 37th parallel . The transfer was prompted by the discovery of gold in the area, and officials thought Nevada would be better able to oversee the expected population boom. This area includes most of what is now Clark County and the Las Vegas metropolitan area. Mining shaped Nevada's economy for many years (see Silver mining in Nevada ). When Mark Twain lived in Nevada during
5936-422: The Fraser River and its tributaries in 2010. In total, approximately 11,591,000 Fraser sockeye were caught by Canadian fishers and 1,974,000 Fraser sockeye were caught by American fishers. The final projected escapement (fish which were not caught) was 15,852,990 fish. Recent unpredictable fluctuations in runs are speculated to be due to changing water temperatures. There is high variation in thermal tolerance among
6048-413: The Fraser River, marine environmental conditions, aquaculture, predators, diseases, water temperature and other factors that may have affected the ability of sockeye salmon to reach traditional spawning grounds or reach the ocean." During the commission, hundreds of thousands of documents and scientific research papers were reviewed. Twelve technical reports were published using that information, looking at
6160-462: The Las Vegas area is situated, is within the Mojave Desert . The area receives less rain in the winter but is closer to the Arizona Monsoon in the summer. The terrain is also lower, mostly below 4,000 feet (1,200 m), creating conditions for hot summer days and cool to chilly winter nights. Nevada and California have by far the longest diagonal line (in respect to the cardinal directions) as
6272-419: The Spanish adjective nevada ( [neˈβaða] ), meaning "snow-covered" or "snowy". The state takes its name from the Nevada Territory , which in turn was named for the Sierra Nevada . Nevadans pronounce the second syllable with the "a" of "apple" ( / n ə ˈ v æ d ə / ) while some people from outside of the state pronounce it with the "a" of "palm" ( / n ə ˈ v ɑː d ə / ). Although
6384-1079: The US Endangered Species Act by the National Marine Fisheries Service as an endangered species in the Snake River and as a threatened species in Lake Ozette , Washington. The Snake River sockeye salmon was listed as endangered in November 1991, after the Shoshone - Bannock Tribe at Fort Hall Indian Reservation petitioned the National Marine Fisheries Service. Sockeye is an exception to 2010's forecast resurgence of Oregonian fish stocks. Spring Chinook , summer steelhead , and Coho are forecast to increase by up to 100% over 2008 populations. The sockeye population peaked at over 200,000 in 2008 and were forecast to decline to just over 100,000 in 2010. As an early indication of
6496-565: The Union". Statehood was rushed to the date of October 31 to help ensure Abraham Lincoln 's reelection on November 8 and post-Civil War Republican dominance in Congress, as Nevada's mining-based economy tied it to the more industrialized Union . As it turned out, however, Lincoln and the Republicans won the election handily and did not need Nevada's help. Nevada is one of only two states to significantly expand its borders after admission to
6608-529: The Union, with the other being Missouri , which acquired additional territory in 1837 due to the Platte Purchase . In 1866 another part of the western Utah Territory was added to Nevada in the eastern part of the state, setting the current eastern boundary. Nevada achieved its current southern boundaries on January 18, 1867, when it absorbed the portion of Pah-Ute County in the Arizona Territory west of
6720-619: The United States and British Columbia and Yukon in Canada. Populations of kokanee are also found in Japan and Russia. Additionally, kokanee have been introduced to many other lakes in the United States including in those states mentioned above as well as in Montana , Wyoming , Nevada , Utah , Colorado , Arizona and New Mexico in the west, as well as in New England , New York and North Carolina in
6832-601: The ability to bury eggs deeper and provide more protection. Females vary their breeding rate depending on the size of the courting male, mating more quickly with larger males. This increases the likelihood that larger males will displace attending, smaller males. Male sockeye salmon social status and greater reproductivity are directly associated with larger body size and more extreme body shapes; Larger bodies provide males with advantages when it comes to intrasexual competition and being selected for by females during reproduction. Males preferentially spawn with females who are red, which
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#17328453671086944-410: The area with snow. The state's highest recorded temperature was 125 °F (52 °C) in Laughlin (elevation of 605 feet or 184 meters) on June 29, 1994. The coldest recorded temperature was −52 °F (−47 °C ) set in San Jacinto in 1972, in the northeastern portion of the state. The Humboldt River crosses the state from east to west across the northern part of the state, draining into
7056-535: The body mass. Females are responsible for parental care. They select, prepare, and defend a nest site until they die or are displaced. Males do not participate in parental care at all, and they move between females after egg deposition. Sexual selection favors large males and females. Males choose females based on their readiness to spawn and their size in order to maximize their breeding opportunities. Larger bodies allow females to reproduce larger and more numerous eggs, better nest choice and ability to defend it, and
7168-413: The boundary with Arizona , drains much of southern Nevada. The mountain ranges, some of which have peaks above 13,000 feet (4,000 m), harbor lush forests high above desert plains, creating sky islands for endemic species. The valleys are often no lower in elevation than 3,000 feet (910 m), while some in central Nevada are above 6,000 feet (1,800 m). The southern third of the state, where
7280-409: The constitution via overland mail and by sea had failed by October 24, so on October 26 the full text was sent by telegraph at a cost of $ 4,303.27 – the most costly telegraph on file at the time for a single dispatch, equivalent to $ 83,831.36 in 2023. Finally, the response from Washington came on October 31, 1864: "the pain is over, the child is born, Nevada this day was admitted into
7392-422: The creation of the Nevada Territory out of the western portion of the Utah Territory in 1861. Nevada became the 36th state on October 31, 1864, as the second of two states added to the Union during the Civil War (the first being West Virginia ). Nevada is known for its libertarian laws. In 1940, with a population of just over 110,000 people, Nevada was by far the least-populated state, with less than half
7504-416: The different sockeye salmon populations that migrate up the Fraser River. The Chilko River sockeye salmon population is able to maintain cardiorespiratory function at higher temperatures, which may make them more resilient to the effects of rising river temperatures. In one study examining possible physiological mechanisms underlying these population differences in thermal tolerance, juvenile sockeye salmon from
7616-491: The east. Kokanee have also been introduced to lakes in southern Alberta and Saskatchewan in Canada. There is debate as to whether the kokanee has enough genetic distinction to be classified as a subspecies or a separate species from the sockeye salmon. Genetic evidence suggests that the evolution of landlocked sockeye has occurred more than once with different kokanee populations, showing genetic differences between populations. Most evidence points to events that land-locked
7728-440: The fabric of Nevada's own cultural landscape. As a result of the Mexican–American War and the Treaty of Guadalupe Hidalgo , Mexico permanently lost Alta California in 1848. The new areas acquired by the United States continued to be administered as territories. As part of the Mexican Cession (1848) and the subsequent California Gold Rush that used Emigrant Trails through the area, the state's area evolved first as part of
7840-413: The fecundity of kokanee populations. Studies have found that kokanees can extract carotenoids (which provide red pigmentation during breeding) from food better than sockeyes due to sexual selection and mate choice . Again, the degree of morphological variation, such as gill raker count, can vary from population to population. The Japanese kokanee, also known as the kunimasu salmon or black kokanee ,
7952-425: The federal government presented the $ 49 million construction contract for Boulder Dam (now Hoover Dam ). The Nevada Test Site , 65 miles (105 km) northwest of the city of Las Vegas, was founded on January 11, 1951, for the testing of nuclear weapons . The site consists of about 1,350 square miles (3,500 km ) of the desert and mountainous terrain. Nuclear testing at the Nevada Test Site began with
8064-614: The first independent government of the First Mexican Empire ( Mexico ) in 1821. The westward expanding United States a quarter-century later annexed the area of the Mexican Cession in 1849 after its victory in the Mexican–American War (1846–1848), and it was incorporated into the U.S. as part of the newly-organized larger federal New Mexico Territory (1850–1863 split with Arizona Territory , then statehood 1912) in
8176-460: The first permanent settlement in what is now Nevada, called Mormon Station (now Genoa), in 1851. Additionally, in June 1855, William Bringhurst and 29 other Mormon missionaries built the first permanent structure, a 150-foot square adobe fort , northeast of downtown Las Vegas, converging on the Spanish and Mormon Roads . The fort remained under Salt Lake City 's control until the winter of 1858–1859, and
8288-421: The first phase of its reopening on May 9, 2020. Restaurants, retailers, outdoor malls, and hair salons were among the businesses allowed to reopen, but with precautions in place, such as limiting occupancy to 50 percent. A second phase went into effect on May 29, 2020. It allowed for the reopening of state parks and businesses such as bars, gyms, and movie theaters. Casinos began reopening on June 4, 2020. Nevada
8400-442: The fish that once numbered in the thousands. As few as 150 fish spawned in 2007–2008 marking a critical need for conservation of the state's kokanee population. Currently, restoration of streams, habitats, hatchery breeding, and a ban on fishing for kokanee has caused an increase in native kokanee populations. Lakes in Canada have also seen a decline in native kokanee, with numbers dropping from 2,800 fish to just 88 fish in 2007 in
8512-500: The genetic diversity between the lake-type sockeye and the kokanee marks the divergence of two species because cohabitating sockeye and kokanee did not interbreed , despite the fact that interbreeding was possible. There is some morphological divergence between the kokanee and sockeye. The most noticeable difference is size. The kokanee is often smaller than the sockeye due to less nutrient availability in freshwater . Other morphological differences include higher gill raker counts in
8624-684: The harvest of all Pacific salmon species by weight. Commercial fishermen in Alaska net this species using seines and gillnets for fresh or frozen fillet sales and canning . The annual catch can reach 30 million fish in Bristol Bay , Alaska , which is the site of the world's largest sockeye harvest. Sockeye salmon have long been important in the diet and culture of the Coast Salish people of British Columbia. The largest spawning grounds in Asia are located on
8736-461: The headwaters of the sockeye salmon by preventing industrial development in roadless areas . Record numbers of a once-waning population of sockeye salmon have been returning to the Northwest's Columbia Basin (as of June 2012), with thousands more crossing the river's dams in a single day than the total numbers seen in some previous years. The conservation status of sockeye populations in Canada
8848-551: The introduction of non-native kokanee populations from Canada, and a population crash have decreased the genetic distinctiveness between the black kokanee and its sockeye relatives. These factors have also caused a decrease in native kokanee populations. While size range of kokanee is often lake-specific and depends on many factors, in typical populations the kokanee grows to an average size of 23–30 centimetres (9–12 in) with an average weight of 0.45 kilograms (1 lb). In bodies of water with more favorable conditions it can reach
8960-530: The intruding male leaving after one or two aggressive interactions. Spawning females direct their aggression primarily towards intruding females or other spawning females that are close by. However, they may also direct aggression towards intruding or subordinate males. Aggressive interactions between females only last one or two charges and/or chases. The intruder retreats and the spawning female settles back in her redd . These acts of aggression are important in terms of reproductive success, because they determine
9072-603: The jurisdiction of the National Park Service , U.S. Forest Service , and Bureau of Land Management . The Nevada state parks comprise protected areas managed by the state of Nevada, including state parks , state historic sites , and state recreation areas . There are 24 state park units, including Van Sickle Bi-State Park which opened in July 2011 and is operated in partnership with the adjacent state of California . The United States Census Bureau determined Nevada had
9184-412: The juvenile stage. Sockeye salmon exhibit many different life histories with the majority being anadromous where the juvenile salmon migrate from freshwater lakes and streams to the ocean before returning as adults to their natal freshwater to spawn . Similar to most Pacific salmon , sockeye salmon are semelparous , meaning they die after spawning once. Some sockeye, called kokanee, do not migrate to
9296-721: The kokanee at risk in some areas. Some kokanee populations have declined in the US and Canada, while others thrive. The kokanee's status is variable among different locations under the Endangered Species Act . They are listed as threatened in Ozette Lake in Washington State. Other kokanee populations in Washington State have shown genetic distinction, but attempts by the Lake Sammamish Kokanee Work Group to get
9408-481: The kokanee in a lake and occur from August to February. Some kokanee have been seen spawning in April. The female kokanee creates a nest called a redd. She will lay around 1,000 eggs, depending on food availability. Eggs hatch within 110 days, and the juveniles swim out to the lake. During spawning, the males turn bright red and develop a humped back and an elongated jaw similar to the male sockeye salmon. Females also don
9520-449: The kokanee is similar to that of other salmon. They are born in a stream and migrate down to a lake where they will spend most of their adult lives. Kokanee typically live for four years in a lake before heading back to spawning grounds to spawn and die. However, population longevity can vary between 2–7 years. A kokanee can spawn in a variety of different time periods called runs. Individual populations can have multiple runs associated with
9632-520: The kokanee may have evolved back into a lake-type anadromous form at some point in recent history, although there is a lack of interbreeding between it and sockeye in the drainage systems. It is also important to note that genetic distinction between sockeye and kokanee that cohabitate varies from region to region, with some populations showing distinct divergence, but others showing very little divergence. Studies done in Okanagan Lake in British Columbia and Lake Sammamish in Washington State suggested that
9744-421: The kokanee, failure to develop the changes that allow the sockeye to transition between fresh and salt water, and juvenile kokanee's lower mean swim velocity compared to juvenile sockeye. Egg sizes are also a difference. Due to its size, the kokanee should theoretically have smaller eggs in order to increase fecundity . In reality, the kokanee egg size varies, even though the energetic cost of larger eggs can limit
9856-412: The lake-type sockeye (which spawns in streams and lakes, rather than tributaries like the sea-type sockeye, but is still anadromous and spends most of its adult life out at sea), which evolved into the non-anadromous form. Genetic evidence from kokanee in the Fraser River drainage and Columbia River drainage shows that ancestors of the kokanee came from the lake-type sockeye. The data also suggests that
9968-401: The larger ones in a population. This shows natural selection against large bodies. Populations with higher levels of predation tend to evolve smaller body size. Without the threat of predation, salmon that breed early in the season live longer than those that breed late in the season. Other ecological factors like stranding effect select for smaller body size in sockeye salmon when present in
10080-579: The low returns, the Government of Canada launched a formal inquiry into the decline, the Commission of Inquiry into the Decline of Sockeye Salmon in the Fraser River. The Commission has been tasked with investigating all the factors which may affect Fraser River sockeye salmon throughout their life cycle. According to the terms of reference, the subjects of investigation are "the impact of environmental changes along
10192-449: The massive infusion of the monetary support it provided of nearly $ 400 million dollars in rich underground geological layers of veins of silver ore generated at the time by the 1859 discovery of the legendary Comstock Lode , mined beneath and around Virginia City up to about 1874 / 1920s ). It is also known as the " Sagebrush State", for the native plant of the same name; and as the " Sage-hen State". The state's name means "snowy" in
10304-474: The ocean and live their entire lives in freshwater lakes. The majority of sockeye spawn in rivers near lakes and juveniles will spend one to two years in the lake before migrating to the ocean, although some populations will migrate to saltwater in their first year. Adult sockeye will spend two to three years in the ocean before returning to freshwater. Females will spawn in 3–5 redds over a period of several days. The eggs usually hatch within six to nine weeks and
10416-578: The period described in Roughing It , mining had led to an industry of speculation and immense wealth. Both mining and population temporarily declined in the late 19th century. However, the rich silver strike at Tonopah in 1900, followed by strikes in Goldfield and Rhyolite , created a second mining boom in Nevada and Nevada's population. Unregulated gambling was commonplace in the early Nevada mining towns but
10528-431: The population of the next least-populous state, Wyoming . However, legalized gambling and lenient marriage and divorce laws transformed Nevada into a major tourist destination in the 20th century. Nevada is the only U.S. state where prostitution is legal, though it is illegal in its most populated regions – Clark County (Las Vegas), Washoe County (Reno) and Carson City (which, as an independent city,
10640-430: The population. 19.1% of the population was reported as foreign-born. Since the 2020 census, the population of Nevada had a natural increase of 2,374 (the net difference between 42,076 births and 39,702 deaths); and an increase due to net migration of 36,605 (of which 34,280 was due to domestic and 2,325 was due to international migration). The center of population of Nevada is in southern Nye County . In this county,
10752-531: The portion that remained in Nevada. In 1969, Ormsby County was dissolved and the Consolidated Municipality of Carson City was created by the Legislature in its place coterminous with the old boundaries of Ormsby County. Bullfrog County was formed in 1987 from part of Nye County. After the creation was declared unconstitutional, the county was abolished in 1989. Humboldt County was designated as
10864-445: The possible impacts of diseases and parasites, hatchery diseases, contaminants, marine ecology, salmon farms, fisheries, predators, climate change and government management on the productivity of Fraser River sockeye runs. While the commission was holding public hearings, in the late summer of 2010, the largest run of sockeye since 1913 returned to the Fraser River system. Final counts show that approximately 30 million salmon returned to
10976-420: The quality of the nest site the female obtains and access to males. Competition for food or space while the salmon are in their lake residence period can exist. This happens when there is a more populous class of young sockeye or when there are multiple classes present. It can also happen when resources are in short supply. Interspecific competition can also occur and can lead to interactive segregation, which
11088-480: The region Nevada (snowy) because of the snow which covered the mountains in winter, similar to the Sierra Nevada mountains in European Spain . The area formed from mostly Alta California (Upper California) to the west and to the east as part of Nuevo México ( New Mexico )'s colonial province and territory to the northern portion within the larger colonial era Viceroyalty of New Spain , which gained freedom as
11200-599: The route remained largely under the control of Salt Lake City and Santa Fe tradespersons. As such, these pioneers laid the foundation for the emergence of the initial settlements between the Sierra Nevadas and Mojave Desert and within the Las Vegas Valley. The enduring influence of New Mexico and Utah culture has since profoundly impacted Nevada's identity, manifesting through New Mexican cuisine and Mormon foodways or New Mexican and Mormon folk musics , into
11312-486: The same areas and habitats during the breeding season, when ocean-going sockeye salmon return to freshwater to spawn, the two populations do not mate with each other in some regions, suggesting speciation . The name kokanee means "red fish" in the Sinixt Interior Salish language, and "silver trout" in the Okanagan language . Kokanee are native to many lakes in the western United States and Canada including Alaska , Washington , Oregon , California and Idaho in
11424-416: The sockeye salmon has to be accomplished with the energy stores brought to the spawning grounds. How the salmon use their energy during migration and spawning affects how successful they will be reproductively; energy used for migration cannot also be used for courtship . If they waste too much energy, they might not be able to spawn. Males must also make the decision whether to invest energy in fighting for
11536-489: The southern portion. To the north of the newly acquired Mexican / Spanish lands was the similarly larger Utah Territory (1850–1896) along with the far-western new 31st state of California on the Pacific Ocean coast also in 1850. The discovery of mineral wealth at the Comstock Lode silver bonanza in 1859 led to a population boom similar to that of earlier California Gold Rush in 1848–1852, that became an impetus to
11648-677: The unexpectedly high sockeye run in 2010, on July 2, 2010, the United States Army Corps of Engineers reported over 300,000 sockeye had passed over Bonneville Dam on the Columbia River. Lower temperatures in 2008 North Pacific waters brought in fatter plankton, which, along with greater outflows of Columbia River water, fed the resurgent populations. Proposed legislative efforts, such as the Northern Rockies Ecosystem Protection Act , are attempting to protect
11760-464: The unincorporated town of Pahrump , 60 miles (97 km) west of Las Vegas on the California state line, has grown very rapidly from 1980 to 2020. At the 2020 census, the town had 44,738 residents. Las Vegas grew from a gulch of 100 people in 1900 to 10,000 by 1950 to 100,000 by 1970, and was America's fastest-growing city and metropolitan area from 1960 to 2000. From about the 1940s until 2003, Nevada
11872-682: The water column, timing and length of feeding, school formation, and choice of prey to minimize the likelihood of predation. This also ensures they still get at least the minimum amount of food necessary to survive. All of these behaviors contribute to the survivability, and therefore fitness of the salmon. Depending on location and threat of predation, the levels of aggressive feeding behavior can vary. Sockeye salmon, unlike other species of Pacific salmon, feed extensively on zooplankton during both freshwater and saltwater life stages. They also tend to feed on small aquatic organisms such as shrimp . Insects and occasionally snails are part of their diets at
11984-427: The west. The farthest inland sockeye salmon travel is to Redfish Lake , Idaho, over 1,400 km (900 mi) by river from the ocean and 2,000 m (6,500 ft) in elevation. In the United States, populations of sockeye salmon have been extirpated from Idaho and Oregon . Some sockeye salmon populations are completely landlocked. Sockeye that live and reproduce in lakes are commonly called kokanee , which
12096-457: The western edge. In 2020, 80.1% of the state's land was managed by various jurisdictions of the U.S. federal government , both civilian and military. Native Americans of mostly the Paiute , Shoshone , and Washoe tribes inhabited what is now Nevada. The first Europeans to explore the region were tho Spanish and explorers from their worldwide Spanish Empire in the 16th century . They called
12208-477: Was confirmed in Nevada on March 5, 2020. Because of concerns about coronavirus disease 2019 (COVID-19), Nevada governor Steve Sisolak declared a state of emergency on March 12, 2020. Four days later, Nevada reported its first death. On March 17, 2020, Sisolak ordered the closure of non-essential businesses in the state to help prevent the spread of the coronavirus. Various protests were held against Sisolak's shutdown order beginning in April 2020. Nevada launched
12320-437: Was estimated at a very low 1,370,000, 13% of the pre-season forecast of 10,488,000. That represented a decline from the recent (1993) historical cycle peak of 23,631,000 and the return abundance was the lowest in over 50 years. The reasons for this (former) decline remain speculative. According to a consortium of scientists assembled to review the problem, the decline highlights the uncertainty in forecasting salmon returns. After
12432-483: Was outlawed in 1909 as part of a nationwide anti-gambling crusade. Because of subsequent declines in mining output and the decline of the agricultural sector during the Great Depression , Nevada again legalized gambling on March 19, 1931, with approval from the legislature. Governor Fred B. Balzar 's signature enacted the most liberal divorce laws in the country and open gambling. The reforms came just eight days after
12544-556: Was the first to name Las Vegas, in an 1830 report to governor José Antonio Chaves . Following the suggestions by Rivera of a spring, on the published expedition's map, located in the Las Vegas area John C. Frémont set up camp in Las Vegas Springs in 1844. In 1847, Mormons established the State of Deseret , claiming all of Nevada within the Great Basin and the Colorado watershed. They built
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