نتایج جستجو برای: hunting and fishing
تعداد نتایج: 16831426 فیلتر نتایج به سال:
Abstract The solunar theory proposes that the position of sun and moon can be used to predict activity rates in fish game species. Several free premium services use this provide tables predicting optimal dates times for fishing hunting success. efficacy these was tested by comparing catch per unit effort (CPUE) a recreational freshwater trout fishery with daily values coincidence trips peak tim...
Understanding the spatial dimensions of hunting and prey population dynamics is important in order to estimate the sustainability of hunting in tropical forests. We investigated how hunting offtake of vertebrates differed in mixed forest and monodominant forest (composed of Gilbertiodendron dewevrei) and over different spatial extents within the hunting catchment around the logging town of Kabo...
Coordinated hunting, in which individual predators relate in time and space to each other’s actions, is uncommon in animals, and is often difficult to distinguish from simply hunting in non-coordinated groups, which is much more common. The author tested if Cuban boas (Chilabothrus angulifer) hunting bats in cave passages take into account other boas’ positions when choosing hunting sites, and ...
the present study considered the situation of kilka stocks in last decades by using overfished biomass threshold, fishing effort ratio and fishing mortality proxy during 1991-2010. the cpue index of anchovy and mixed-species of kilka indicated an undepleted from 1991 to 2000. in 2000, the cpue ratio declined to close to the “in danger” region, and subsequently collapsed to “overfished” region f...
The Alutiiq, Indigenous inhabitants of the coastal regions Southwest Alaska, created garments made from fish skins, especially salmon, expertly sewn by women Kodiak Island. Traditionally, Alutiiq education focused on acquiring survival skills: how to navigate seas in all weathers, hunting, fishing and tanning animal skins. Today, many people continue provide for their families through subsisten...
There is increasing evidence of indirect effects of hunting on populations. In species with sexually selected infanticide (SSI), hunting may decrease juvenile survival by increasing male turnover. We aimed to evaluate the relative importance of direct and indirect effects of hunting via SSI on the population dynamics of the Scandinavian brown bear (Ursus arctos). We performed prospective and re...
Abstract In this article we investigate the importance of freshwater fishing during Mesolithic in France, inland sites where was always associated with big game hunting. We present a review that have yielded fish remains and focus on case study from an occupation dated to eighth millennium BC at Les Cabônes rock shelter, located near Doubs River, over 9,300 remains. Cyprinid (including bream, r...
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