نتایج جستجو برای: stocking density
تعداد نتایج: 412527 فیلتر نتایج به سال:
We investigated the spatial and temporal relationship of catch rates and angler party location for two days following a publicly announced put-and-take stocking of rainbow trout (Oncorhynchus mykiss). Catch rates declined with time since stocking and distance from stocking. We hypothesized that opportunity for high catch rates would cause anglers to fish near the stocking location and disperse ...
Potential decreases in crop yield from reductions in bee-mediated pollination services threaten food production demands of a growing population. Many fruit and vegetable growers supplement their fields with bee colonies during crop bloom. The extent to which crop production requires supplementary pollination services beyond those provided by wild bees is not well documented. Pumpkin, Cucurbita ...
Abstract In recent decades, the number of birds reared per unit area has dramatically spiked to increase profitability in egg and meat production. However, nowadays, sensitivity animal welfare consumer demands brings along with it a raised interest stocking density. Stocking density is defined either as animals or body weight animal. High density, which stress factor, can be an decrease Stress ...
Spotted scats (Scatophagus argus) are euryhaline fish of the family scatophagidae inhabiting Indian and western Pacific oceans including Sundarbans estuary Bangladesh having good demand as food aquarium. The present study describes nursery rearing techniques spotted to optimize stocking densities for better survival, growth production.
Dietary supplementation with royal jelly (RJ) may improve growth, antioxidant gene expression, and intestinal capacity, possibly mitigate effects of stress induced by high stocking density (HSD) in zebrafish (Danio rerio). Effects HSD RJ on growth performance, capacity were investigated. A total 240 four-month-old used a 2 x factorial design, four treatments three replications. The consisted no...
Predator-prey systems have been studied extensively. See, for instance, [1, 6, 8–10] and the references cited therein. Most of the previous papers focused on the predator-prey systems without stocking. Brauer and Soudack [2, 3] studied some predator-prey systems under constant rate stocking. To our knowledge, few papers have been published on the existence of positive periodic solutions for del...
Better information regarding the spatial variability of height, Diameter at Breast Height (DBH) and stocking could improve inventory estimates at the operational Planning Unit since these parameters are used extensively in allometric equations, including stem volume, biomass and carbon calculations. In this study, the influence of stand stocking on height and DBH of two even aged radiata pine (...
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