نتایج جستجو برای: lethrinus nebulosus
تعداد نتایج: 379 فیلتر نتایج به سال:
Recruitment overfishing (the reduction of a spawning stock past a point at which the stock can no longer replenish itself) is a common problem which can lead to a rapid and irreversible fishery collapse. Averting this disaster requires maintaining a sufficient spawning population to buffer stochastic fluctuations in recruitment of heavily harvested stocks. Optimal strategies for managing spawne...
The effects of point-source and diffuse discharges on resident populations of brown bullhead catfish (Ameiurus nebulosus (LeSueur, 1819)) in the Waikato River (New Zealand) were assessed at sites both upstream and downstream of point-source discharges. At each site, the population parameters, relative abundance, age structure, and individual indices, such as condition factor, organ (gonad, live...
Culture models and facilities for large-scale, commercial production of popular Gulf Mexico species are unavailable. The spotted seatrout (Cynoscion nebulosus) is one the most recreational fishes in Mexico. Seatrout culture techniques were adapted from red drum (Sciaenops ocellatus) protocols developed 1970s. Broodstock husbandry, spawning, extensive pond rearing using fertilized bloomed bracki...
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