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Full-Text Articles in Life Sciences
Soil Response Of Helicopter Liming In The Monongahela National Forest, Jarrett Douglas Fowler
Soil Response Of Helicopter Liming In The Monongahela National Forest, Jarrett Douglas Fowler
Graduate Theses, Dissertations, and Problem Reports
Soils in the Monongahela National Forest (MNF) are acidic due to sandstone parent material, acid deposition, uptake of base cations by vegetation, and release of organic acids by organic matter (OM) decomposition. Increases in soil acidity have caused declines in forest health and changed species composition and nutrient status. Liming can neutralize soil acidity, but no large-scale liming projects have been done on acid forest soils in the USA. In anticipation of acquiring funding for a proposed liming project in the MNF, in 2007 and 2009 10 sites were selected to sample and analyze soils before lime was applied. In …
Effect Of Diet, Age, And Genetics On Rainbow Trout Growth And Fillet Quality, Bahareh Adami
Effect Of Diet, Age, And Genetics On Rainbow Trout Growth And Fillet Quality, Bahareh Adami
Graduate Theses, Dissertations, and Problem Reports
In this study, analyses were conducted to compare fillet quality attributes of 4 rainbow trout families (40, 102, 159, and 187) fed fish meal (FM) and a fishmeal free diet (FMF), to two age endpoints, 9 and 11 months.
Previous studies with rainbow trout have evaluated the effect of age, diet, and family on growth performance and fillet quality. However, a comprehensive analysis of variables is lacking for rainbow trout, one of the main aquatic foods for domestic and international consumers.
Separable muscle as a percent whole body weight was not affected by diet, family, age, and the interaction of …
Evaluation Of Population Structure, Age, Growth, And Mortality Of Blue Catfish And Flathead Catfish Within The Robert C. Byrd Pool Of The Ohio And Kanawha Rivers, Joseph Vincent Siegel
Evaluation Of Population Structure, Age, Growth, And Mortality Of Blue Catfish And Flathead Catfish Within The Robert C. Byrd Pool Of The Ohio And Kanawha Rivers, Joseph Vincent Siegel
Graduate Theses, Dissertations, and Problem Reports
The Ohio River is continuing to recover from a long history of anthropogenic impacts. Blue Catfish were considered locally extirpated from the West Virginia sections and have been reintroduced through fingerling stockings beginning in 2002. Flathead Catfish are naturally sustaining in the pool and combined with Blue Catfish provide two popular recreational fisheries. The Blue Catfish and Flathead Catfish studies shared similar objectives: (1) evaluating size structure, (2) estimating growth rates, and (3) estimating annual mortality. From 2017 to 2020, we collected catfish annually through low frequency electrofishing and trotline surveys at 10 fixed locations. Electrofishing catch rates for Blue …