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Title: Development of a Natural Rearing System to Improve Supplemental Fish Quality, 1991-1995 Progress Report.

Abstract

In this report, the National Marine Fisheries Service (NMFS), in collaboration with the Bonneville Power Administration (BPA), the Washington State Department of Fish and Wildlife (WDFW), and the US Fish and Wildlife Service (USFWS), presents research findings and guidelines for development and evaluation of innovative culture techniques to increase postrelease survival of hatchery fish. The Natural Rearing Enhancement System (NATURES) described in this report is a collection of experimental approaches designed to produce hatchery-reared chinook salmon (Oncorhynchus tshawytscha) that exhibit wild-like behavior, physiology, and morphology. The NATURES culture research for salmonids included multiple tests to develop techniques such as: raceways equipped with cover, structure, and natural substrates to promote development of proper body camouflage coloration; feed-delivery systems that condition fish to orient to the bottom rather than the surface of the rearing vessel; predator conditioning of fish to train them to avoid predators; and supplementing diets with natural live foods to improve foraging ability. The underlying assumptions are that NATURES will: (1) promote the development of natural cryptic coloration and antipredator behavior; (2) increase postrelease foraging efficiency; (3) improve fish health and condition by alleviating chronic, artificial rearing habitat-induced stress; and (4) reduce potential genetic selection pressures induced by themore » conventional salmon culture environment. A goal in using NATURES is to provide quality fish for rebuilding depleted natural runs.« less

Authors:
; ;
Publication Date:
Research Org.:
United States. National Oceanic and Atmospheric Administration.
Sponsoring Org.:
United States. Bonneville Power Administration.
OSTI Identifier:
418439
Report Number(s):
DOE/BP-20651-1
ON: DE97001747; TRN: AHC29702%%48
DOE Contract Number:  
1991BP20651
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: Aug 1996; Related Information: "prepared by Desmond J. Maynard, Thomas A. Flagg and Conrad V.W. Mahnken."
Country of Publication:
United States
Language:
English
Subject:
13 HYDRO ENERGY; COLUMBIA RIVER; HYDROELECTRIC POWER PLANTS; RESOURCE MANAGEMENT; FISHERIES; PRODUCTIVITY; PROGRESS REPORT; POPULATION DYNAMICS; Fish stock assessment

Citation Formats

Maynard, Desmond J, Flagg, Thomas A, and Mahnken, Conrad V.W. Development of a Natural Rearing System to Improve Supplemental Fish Quality, 1991-1995 Progress Report.. United States: N. p., 1996. Web. doi:10.2172/418439.
Maynard, Desmond J, Flagg, Thomas A, & Mahnken, Conrad V.W. Development of a Natural Rearing System to Improve Supplemental Fish Quality, 1991-1995 Progress Report.. United States. doi:10.2172/418439.
Maynard, Desmond J, Flagg, Thomas A, and Mahnken, Conrad V.W. Thu . "Development of a Natural Rearing System to Improve Supplemental Fish Quality, 1991-1995 Progress Report.". United States. doi:10.2172/418439. https://www.osti.gov/servlets/purl/418439.
@article{osti_418439,
title = {Development of a Natural Rearing System to Improve Supplemental Fish Quality, 1991-1995 Progress Report.},
author = {Maynard, Desmond J and Flagg, Thomas A and Mahnken, Conrad V.W.},
abstractNote = {In this report, the National Marine Fisheries Service (NMFS), in collaboration with the Bonneville Power Administration (BPA), the Washington State Department of Fish and Wildlife (WDFW), and the US Fish and Wildlife Service (USFWS), presents research findings and guidelines for development and evaluation of innovative culture techniques to increase postrelease survival of hatchery fish. The Natural Rearing Enhancement System (NATURES) described in this report is a collection of experimental approaches designed to produce hatchery-reared chinook salmon (Oncorhynchus tshawytscha) that exhibit wild-like behavior, physiology, and morphology. The NATURES culture research for salmonids included multiple tests to develop techniques such as: raceways equipped with cover, structure, and natural substrates to promote development of proper body camouflage coloration; feed-delivery systems that condition fish to orient to the bottom rather than the surface of the rearing vessel; predator conditioning of fish to train them to avoid predators; and supplementing diets with natural live foods to improve foraging ability. The underlying assumptions are that NATURES will: (1) promote the development of natural cryptic coloration and antipredator behavior; (2) increase postrelease foraging efficiency; (3) improve fish health and condition by alleviating chronic, artificial rearing habitat-induced stress; and (4) reduce potential genetic selection pressures induced by the conventional salmon culture environment. A goal in using NATURES is to provide quality fish for rebuilding depleted natural runs.},
doi = {10.2172/418439},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1996},
month = {8}
}

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