Based on the outputs from two types of fishery data it is delineated that biological reference points of fishing limitation (Flimit), optimum fishing level (Fopt) and maximum sustainable yield (MSY) from two production models for swimming crab have been overharvest
. To overcome current situation recently swimming crab seed was released in Zhoushan coastal area that can augment recruitment and rebuild stocks.
Locally, environmental groups are worried that mass-timber technology will encourage timber companies to overharvest
Oregon's private and state-owned forests.
A witches' brew of maladies " including overharvest
, habitat degradation and climate change " has caused a precipitous 30-year decline in worldwide Atlantic salmon populations.
Applied Science--After Texas legalized noodling (hand-fishing) in 2011, some catfish anglers became concerned that this practice might lead to overharvest
, especially of large flathead catfish that are targeted when spawning in logs and crevices.
It's entirely possible Fish and Wildlife Service biologists were genuinely concerned about the overharvest
of wolves and bears.
by the gun is why we ended commercial hunting, and many hunters feel pintails have never recovered from that disastrous point system that allowed 10 sprig daily kills in the '70s.
This can only be achieved by awareness that it must not be destroyed by educating the people about the economic value of the medicinal plants as the populations already often possess in-depth knowledge about the uses of wild medicinal plants and need to utilize these resources wisely but they are pressured by growing population and poverty and this induces them to overharvest
and destroy natural habitats, and mostly this way does not work because the local people also use these plants as a feed to their domestic animals as they are easily available without any cost.
According to a University of Florida IFAS/Sea Grant summary published in the summer of 2013, the oyster decline has coincided with, and likely resulted from, a combination of factors, including drought, parasitism, predation and overharvest
This improved method will provide more accurate population density estimates critical to prevent regional overharvest
"However, it is important to remember that the continuous overharvest
of wall-eye by the commercial gill net fishery is largely responsible for the declines," the report stated.
They range from global phenomena such as climate change and atmospheric pollution, to regional issues such as shifts in fire regimes, disease dynamics, or invasive species, to more localized threats such as overharvest
, habitat conversion, and the effects of isolation.