Hatchery manual for the white sturgeon

Secor, eds. American Fisheries Society Symposium Apperson, K. Kootenai River white sturgeon investigations and experimental culture. Annual Progress Report FY Contract No. Portland, Oregon. Bartley, D. Gall, and B. Preliminary description of the genetic structure of white sturgeon, Acipenser transmontanus in the Pacific Northwest. In: F. Binkowski and S. Dorshov eds. Junk Publishers, Dordrecht, The Netherlands.

Conte, F. Doroshov, P. Lutes, E. Hatchery manual for the white sturgeon Acipenser transmontanus Richardson, with application to other North American Acipenseridae.

Publication Coutant, C. A riparian habitat hypothesis for successful reproduction of white sturgeon. Reviews in Fisheries Science Duke, S. Anders, G. Ennis, R. Hallock, J.

Hammond, S. Ireland, J. Laufle, L. Lockard, B. Marotz, V. Paragamian, and R. Recovery plan for Kootenai River white sturgeon Acipenser transmontanus. Journal of Applied Ichthyology 15 Dunnigan, J. Marotz, J. Deshazer, L. Garrow and T.

Mitigation for the construction and operation of Libby Dam. Giorgi, A. The status of Kootenai River white sturgeon. Don Chapman Consultants Inc. Ireland, S. Anders, and J. Conservation aquaculture: An adaptive approach to prevent extinction of an endangered white sturgeon population Acipenser transmontanus.

VanWinkle, P. Anders and Ray C. Beamesderfer, eds. Cramer and Associates. Bonners Ferry, Idaho. Report prepared by S. Cramer and Associates, R. Beamesderfer and P. Marotz, B. In Preparation. Biological response of fish resulting from flood control spill operations of Libby Dam during June, Helena, MT.

Gustafson, C. Althen, and W. Integrated operational rule curves for Montana reservoirs and application for other Columbia River storage projects. Alaska Sea Grant College Program. AK-SG, December Northcote, T. Some impacts of man on Kootenay Lake and its salmonids. Great Lakes Fisheries Commission Tech. Paragamian, V. Kruse, and V. Kootenai River White Sturgeon Investigations.

Prepared for U. Department of Energy, Bonneville Power Administration. Spawning habitat of Kootenai River white sturgeon, post-Libby Dam. North American Journal of Fisheries Management Beamesderfer, and S. Status, population dynamics, and future prospects of the endangered Kootenai River white sturgeon population with and without hatchery intervention.

While conservation plans continue to investigate means of re-establishing natural recruitment, hatcheries continue to raise and release juvenile sturgeon to preserve remaining genetic diversity. Well over , juveniles have been released in each river system starting as early as , and studies are beginning to investigate the success of hatchery-reared sturgeon. Kelton, Jason Search OAKTrust.

This Collection. Login Register. Observations spanning multiple months or years are excluded from time charts. The White Sturgeon is a bottom feeder and will eat almost any available organism. They feed mostly on fish, but also eat crustaceans, mollusks, worms, and considerable plant material Brown , Weisel Historically, White Sturgeon responded to spring runoff and warming water temperatures by moving upstream to the spawning areas and preparing physiologically for spawning.

The size and age of first sexual maturity is variable within the species. In the Kootenai watershed, females have been observed to mature as early as age 22 years and males at age 16 years Paragamian et al. Females are reported to spawn only once every two to eleven years Conte et al. Empirical evidence suggests that female White Sturgeon from the Kootenai River exhibited spawning periodicities of over 5 years Paragamian et al.

Throughout their range, White Sturgeon generally broadcast their eggs over clean cobble at depths greater than 6 meters 20 feet at column velocities less than 0. Water temperatures associated with White Sturgeon spawning typically ranged from 14 to 20 degrees C. Empirical embryonic developmental stage and water temperature data were used Wang et al. Spawning has occurred at relatively low discharges 13 to 20 kcfs and over finer substrate than is considered optimal for egg to fry survival.

It remains uncertain whether any juveniles survive when eggs are dispersed over fine substrates. Furthermore, several potentially important early life post-fertilization mortality factors, and possible intermittent female stock limitations, have been suggested as mechanisms to explain prolonged more than 25 years White Sturgeon recruitment failure in the Kootenai River Anders and Richards , Anders et al.

Almost no recruitment has occurred since Libby Dam began regulating the Kootenai River in Duke et al. In the final rule, the Service stated "there is no recent evidence of successful spawning and survival past the egg stage" and "regulations and experimental flow programs have not been effective in arresting the decline of the species". A small number of recruits from a cohort spawned in indicated fairly successful natural reproduction, associated with high, protracted springtime river flows.

Between and , the wild population was augmented with 4, juvenile White Sturgeon age 1 and 2 from the Kootenai Tribal Conservation Aquaculture Facility located in Bonners Ferry, Idaho, to address concerns of increasing demographic and genetic risk to a non-recruiting population Ireland et al. Recovery of the White Sturgeon population in the Kootenai River is contingent upon re-establishing natural recruitment, minimizing additional loss of genetic variability, and successfully mitigating biological and habitat alterations that continue to harm the population.

The White Sturgeon Recovery Plan USFWS recommends simultaneous implementation of three high priority recovery approaches: 1 augment spring flows in the Kootenai River to enhance natural production; 2 implement a conservation aquaculture program to prevent extinction and preserve genetic variability; and 3 re-establish suitable habitat conditions to increase White Sturgeon survival past the embryonic and larval stages Montana AFS Species Status Account.

The Kootenai River White Sturgeon Study and Conservation Aquaculture Project was initiated to preserve the genetic variability of the population, begin rebuilding natural age class structure, and prevent extinction while measures are implemented to restore natural recruitment Anders and Westerhof , USFWS , Ireland , Ireland et al.

A breeding plan has been implemented to guide management in the systematic collection and spawning of wild adults before they are lost from the breeding population Kincaid The implementation of the breeding plan includes measures to minimize potential detrimental effects of conventional stocking programs Montana AFS Species Status Account.

Implications of ecosystem collapse on white sturgeon Acipenser transmontanus in the Kootenai River, Idaho, Montana, and British Columbia.

July , Anders, P. Richards, and M. The first endangered white sturgeon population: repercussions in an altered large river-floodplain ecosystem.

American Fisheries Society Symposium Conservation aquaculture of endangered white sturgeon Acipenser transmontanus in the Kootenai River, Idaho. July 14—18, An overview of Acipenseriformes. Environmental Biology of Fishes 25— Brown, C. Fishes of Montana. Conte, F. Doroshov, P.

Lutes, and E. Hatchery manual for the white sturgeon Acipenser transmontanus Richardson , with application to other North American Acipenseridae. Publication Duke, S. Anders, G. Ennis, R. Hallock, J. Hammond, S. Ireland, J. Laufle, et al. Recovery plan for Kootenai River white sturgeon Acipenser transmontanus.

Journal of Applied Ichthyology 15 : Hanson, D.