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Determination of phosphorus composition and availability from various feedstuffs to channel catfish (Ictalurus punctatus)
(Texas A&M University, 1998)
The availability of phosphorus in fish diets is an raphics. important consideration in aquaculture because phosphorus excretion by fish may influence eutrophication of the culture system or receiving water, as phosphorus ...
Screening for environmental contaminants and endocrine disruption in wildlife from the Lower Rio Grande Valley, Texas: an ecological and biomarker approach
(Texas A&M University, 1998)
The Lower Rio Grande Valley (LRGV) of Texas is a ographics. unique area supporting as many as 700 vertebrate species, 86 of which are endangered. Wildlife species in the LRGV use small oxbow lakes and extended lengths of ...
Quantitative genetic analysis of growth and survival in Penaeus vannamei versus temperature
(Texas A&M University, 1998)
Two 8-week laboratory experiments were conducted to evaluate quantitative genetic aspects of growth and survival in juveniles of the marine shrimp Penaeus vannamei versus temperature. Experiment I involved 4,486 progeny ...
Effect of dissolved oxygen on stomach evacuation rate of juvenile red drum (Sciaenops ocellatus)
(Texas A&M University, 1998)
Juvenile red drum (Sciaenops ocellatus) weighing 19,7[]2.5 g, and acclimated to 10 ppt salinity and 25[]1[]C, were subjected to one of three dissolved oxygen (DO) regimes-- 7.5, 4.5, and 2.7[]0.5 mg O₂ 1⁻¹ -- after consuming ...
Recruitment and community structure of fishes in seagrass beds of varying patch structure
(Texas A&M University, 1998)
I tested the hypothesis that patch structure influences patterns of recruitment and post-recruitment loss of seagrass fish. Sampling in North Carolina seagrass bed of varying patch structure revealed (1) greater abundance ...
Stable isotope assessment of temporal and geographic differences in feeding ecology of northern fur seals (Callorhinus ursinus)
(Texas A&M University, 1998)
The feeding ecology of northern fur seals (Callorhinus ursinus) and their primary prey was examined by analyzing their skin tissues for stable-carbon and nitrogen isotope content. The Pribilof Island northern fur seal ...
Survival, reproduction, and habitat use of captive-reared Attwater's prairie chicken
(Texas A&M University, 1998)
This was a study of a restoration effort for Micrographics. Attwater's prairie chicken (Tympanuchus cupids attwateri; APC), during which 2 populations were supplemented with pen-reared birds. Radio telemetry was used to ...
A comparison of the cranial morphology of bottlenose dolphins (Tursiops truncatus) in the Gulf of Mexico
(Texas A&M University, 1998)
The current taxonomic status of the bottlenose dolphin ics. in the Gulf of Mexico is that of a single species, Tursiops truncates, although significant variability has been described on global and local scales. One hypothesis ...