2 edition of Age and size statistics for rainbow trout collected in the Susitna River drainage during 1992 found in the catalog.
Age and size statistics for rainbow trout collected in the Susitna River drainage during 1992
David S. Rutz
by Alaska Dept. of Fish and Game, Division of Sport Fish in Anchorage, Alaska
Written in English
During 1992, 672 rainbow trout Oncorhynchus mykiss were sampled using hook and line gear from two study reaches in Lake Creek and the Talachulitna River and from one study reach in Peters Creek. In addition, 142 rainbow trout were sampled from the Deshka River using both electrofishing gear and hoop traps. Rainbow trout ranged in fork length from 190 millimeters to 552 millimeters and age ranged from 2 to 8 years. At all sites, the mean length-at-age increased with age. Significant differences occurred in mean lengths, length distributions, age compositions, and mean length-at-ages of rainbow trout captured between some reaches in study streams and between some study streams between years. In combination, these data suggest that multiple stocks of rainbow trout inhabit the Susitna River basin. Limited recovery of tagged fish, however, suggests that migrational movements occurred between some study reaches, and between some streams. Fish captured in upper Lake Creek were recaptured in lower Lake Creek, and fish captured in the lower Talachulitna River were recaptured in Shell Creek. Significant differences in age composition and mean length-at-age for select Susitna River tributaries sampled during 1989, 1990, 1991, and 1992 suggest that age and size compositions vary annually. Such findings make management for historic size and age compositions difficult, and show the importance of collecting data over a period of years. Lastly, the occurrence of few trout over 510 millimeters fork length (the size limit defined in the Cook Inlet Rainbow Trout Management Plan for trophy trout) and the slow growth rate of Susitna River basin trout relative to other Alaskan waters containing trophy trout suggest that Susitna River rainbow trout stocks are not viable candidates for management as trophy fisheries under the Cook Inlet Rainbow Trout Management Plan.
|Statement||by David S. Rutz.|
|Series||Fishery data series -- no. 93-55.|
|Contributions||Alaska. Division of Sport Fish.|
|The Physical Object|
|Pagination||iii, 26 p. :|
|Number of Pages||26|
Rainbow trout can be hard to identify. Learn more about identifying Atlantic salmon, Chinook salmon, coho salmon, rainbow (steelhead) trout and brown trout. (non-native) Two dorsal fins including one adipose fin, mouth and gums are light, small spots along rays on entire tail, rays in anal fin. The rainbow trout is Montana's number one game fish. Rainbow trout were introduced from numerous hatchery stocks into virtually every suitable habitat in the state, beginning in Scientists believe that only the rainbow trout of the upper Kootenai River drainage are native to this state.
Upper Susitna River Fish Distribution and Habitat Study – Ma 1 will include data collection activities beginning in A comprehensive set of fisheries study plans ( Fish Study Plans) will be developed during as part of the Project Rainbow trout (O. mykiss) Slimy sculpin. This is the most remote section of the 81 mile river and thus our most popular trout trip. You will see no powerboats, no homes, no cars, no roads-it is simply a gorgeous section of trout filled water. Fishing is similar to the upper river and you can choose a fly or spinning rod and drift from the drift boat while occasionally visiting the bank.
Rainbow trout occur naturally on the Kenai Peninsula, throughout the fresh waters of Upper Cook Inlet, on Kodiak Island, and in the Copper River drainage. Release of hatchery-reared Alaska rainbow trout has extended the range of resident rainbows to specific lakes and streams in the Tanana River drainage near Fairbanks. General description. The river, debased by years of logging, unrestricted grazing and mining damage, was almost empty of native trout when Maclean's book appeared. Even stocked trout virtually vanished after
Detailed flow surveys of turning vanes designed for a 0.1-scale model of NASA Lewis Researach Centers proposed altitude wind tunnel
We implanted radio telemetry tags into adult rainbow trout larger than 16 3/4 inches in length during and Trout were captured in Willow, Montana, and Chunilna (Clear) Creeks and the Kashwitna River, and were tracked from the air and on foot over the course of one year.
Fish locations were used to identify movement patterns and. David S. Rutz's 3 research works with 52 citations and reads, including: Introduced northern pike consumption of salmonids in Southcentral Alaska. The average annual Alaska sport rainbow trout catch estimate from to wasrainbow trout.
During that time period, 84% percent of the catch occurred in Southcentral Alaska. On average, 83, rainbow trout were harvested annually in the sport fishery from Cast for rainbow trout, Dolly Varden, or silver salmon-all within walking distance of your car.
Throw on a pair of hip-waders and head up the creek or angle from the shoreline trail. Directions: Park at one of the lots on Campbell Airstrip Rd. to access the creek from Far North More. The largest rainbow trout ever caught was 57 pounds and estimated to be 11 years old. The Montana state record is 33 pounds.
Rainbow trout were introduced to Montana beginning in The Montana Field Guide says that scientists believe that only the rainbow trout of the upper Kootenai River drainage are native to this state. Rainbows are the. Rainbow trout figure 5. From Fishweb Inc. Distribution: The rainbow trout (Oncorhyncus mykiss) are native to the drainages of the United States Pacific Coast from Alaska to Mexico, the waters of the Pacific Ocean and the eastern coast of Asia.
This natural range goes from the Kuskokwim River region of Alaska to the Baja California Peninsula and the coastal rivers of Mexico (Greenhalgh ).
Transport of eyed eggs and different age groups of rainbow trout 67 9. Frequent diseases of rainbow trout 70 Tables 73 Tables 1. Key semi-intensive production figures of rainbow trout in lined and concrete tanks 20 2.
Key semi-intensive production figures of rainbow trout in earth ponds 21 3. rainbow trout habitat variables. Literature sources and assumptions for rainbow trout suit-ability indices.
Sample data sets using the nonanadromous riverine rainbow trout HS1 model. Average va1. ue method. Average value, probability method. Ava ilability of curves for IFIM analysis of rainbow trout habi tat. vii 22 24 34 35 35 Created Date: 5/4/ PM.
The rainbow trout (Oncorhynchus mykiss) is a trout and species of salmonid native to cold-water tributaries of the Pacific Ocean in Asia and North America. The steelhead (sometimes called "steelhead trout") is an anadromous (sea-run) form of the coastal rainbow trout (O.
irideus) or Columbia River redband trout (O. gairdneri) that usually returns to fresh water to spawn after living two. for riverine rainbow trout, but not for lacustrine rainbow trout.
Mean modal ages varied significantly among readers, but the variation was not found to be related to experience. A procedure for reading rainbow trout scales is proposed which attempts to minimize. Wild rainbow trout populations within Virginia most often occur in small rocky streams in forested landscapes.
Hatchery reared rainbows are widely stocked within streams, rivers, ponds and lakes throughout central and western Virginia. Rainbow trout were first liberated in stream habitats within and downstream of the park in Rainbow Trout Features and Size lake rainbows are lighter, brighter and more silvery in color Rainbow Trout have an elongated, laterally compressed body with a rounded snout, which becomes extended and the lower jaw turns up in breeding males as is common with other salmonidaes.
Page 1 MICHIGAN DEPARTMENT OF NATURAL RESOURCES Research and Development Report No. * Ap AGE, GROWTH, AND DOWNSTREAM MIGRATION OF JUVENILE RAINBOW TROUT IN THE BLACK RIVER, MICHIGAN1 By Thomas M.
Stauffer Abstract Juvenile rainbow trout were examined during while they lived in upstream areas of the Black River and also when. the regular occurrence of rainbow trout in the MacKenzie River, Ontario, that migrated in the fall or in the spring.
The adults spawned during late October and during May, after the autumn and spring runs, respectively. No other Lake Su- perior tributary is known to have rainbow trout with two separate spawning periods, which sup.
Rainbow trout, (Oncorhynchus mykiss), game fish of the family Salmonidae noted for its spectacular leaps and hard fighting when hooked.
It has been introduced from western North America to many other countries. A brightly coloured fish of lakes and swift streams, it is covered with small black.
Wild rainbow trout are returning to the mountain rivers of Colorado for the first time in more than 20 years after an invasive parasite eradicated them in the region 20 years ago.
The optimum water temperature for rainbow trout culture is below 21 °C. As a result, temperature and food availability influence growth and maturation, causing age at maturity to vary; though it is usually years. Females are able to produce up to 2 eggs/kg of body weight.
Eggs are relatively large in diameter ( mm). Seasonal Movements and Habitat Use of Rainbow Trout in the Susitna River Basin, Southcentral Alaska to produce age-0 trout during the most severe year of drought, suggesting that streams with.
A mature rainbow is dark green to bluish on the back with silvery sides. The reddish horizontal band typifies the species. The belly may be white to silvery. Irregular black spots are usually present on the head, back and sides.
Rainbow Trout are heavily stocked in almost every coldwater drainage in Utah. Native to the Columbia River drainage of northeastern Nevada, but stocked extensively from hatcheries throughout Nevada.
Nevada's most abundant game fish species occurring in streams statewide and in a large number of lakes and reservoirs.In the Lahontan drainage and various Rocky Mountain rivers, hybridization with rainbow trout has been a major factor in the decline of native cutthroat trouts (McAffee a).
Rainbow trout have been shown to hybridize with Westslope cutthroat trout throughout the Flathead River system in .One of Alaska (and the world’s) most popular gamefish, the rainbow trout is not indigenous to the Tanana or Yukon drainages, but the species has been successfully stocked in more than lakes throughout the Interior.
For Fairbanks-bound anglers, this means bountiful opportunity to pursue one of Alaska’s signature species, in a remote and pristine setting.