Skip to main content
U.S. flag

An official website of the United States government

Publications

These publications showcase the significant science conducted in our Science Centers.

Filter Total Items: 16785

A bioassay for production capacity assessment

Given sufficient oxygen, fish production can be limited by a multiplicity of factors. Accurate determination of production capacity requires something other than an estimate of the biomass at which ambient un-ionized ammonia will reach a recommended, non-site-specific, maximum safe concentration. A chronic (1- to 2-month) bioassay can be used to determine the point at which metabolite buildup redu
Authors
J. W. Meade

Growth, carcass composition, and taste of rainbow trout of different strains fed diets containing primarily plant or animal protein

Ten rainbow trout (Salmo gairdneri) strains were evaluated during early growth from 30 g to 250 g on two diets — one based on plant protein (soybean and cottonseed meal) and the other on animal protein (fish meal). Diets were formulated to be nutritionally isocaloric and isonitrogenous. Fish were fed identical starter diets until they weighed 30 g. Significant differences in growth rate were found
Authors
R. R. Smith, H. L. Kincaid, J. M. Regenstein, G. L. Rumsey

Field evaluation of seven sampling devices for purgeable organic compounds in ground water

No abstract available.
Authors
Thomas Imbrigiotta, Jacob Gibs, Thomas V. Fusillo, George R. Kish, J. J. Hochreiter

Current status of Rudd in the United States

No abstract available at this time.
Authors
J. Williams, D. Jennings

Demise of an insular avifauna: the brown tree snake on Guam

No abstract available.
Authors
J. Engbring, T. H. Fritts