نتایج جستجو برای: acceptable biological catch
تعداد نتایج: 538610 فیلتر نتایج به سال:
Abstract Riverine fisheries will have a knock-on effect due to the changes in water flow and increased irrigation agriculture sector cope with climate change impact. The present study showed very high perception existing fishing community about observed last 10 years. About 95% of fishermen understand temperature sea levels are changing, whereas 91% responded that rainfall is changing salinity ...
Tuna fish from the order Perciform and the scombridae family, with 15 genera and 52 species, it has been an important economic fish for most countries and the most valuable economic aquatic are in industrial catch in the world. The rate of overfishing in the southern waters (from 1997 to 2016) in 2019 was based on CMSY model and R software and Bayesian status approach (Problem solving based on ...
Hilsa shad (Tenualosa ilisha Hamilton, 1822) is a migratory fish and as one of the most important species in the southern parts of Iran, so that during the last decade, the amount of its catch has fluctuated a lot. Due to the limited data available on the stock of this species in southern waters, it is not possible to use models based on complementary data to assess its stock. In the present st...
Classical arthropod biological control programs lack a universally adopted, broadly utilitarian, and standardized risk assessment testing strategy for precisely estimating physiological and ecological host range of potential biological control agents. We implemented a rigorous host specificity testing protocol for estimating potential physiological and ecological risk to non-target species pose...
Acceptable logic programs have been studied extensively in the context of proving termination of Prolog programs. It is diicult, however, to establish acceptability from the deenition since this depends on nding a suitable model, which need not be a Herbrand model in general, together with a suitable level mapping that one can use to check the conditions which characterize acceptability. In thi...
Roughly three decades ago, the political dimensions of decision making about the technological hazards embedded in contemporary societies became publicly visible, provoking the emergence of a new politics of risk. Public controversies about what constituted “acceptable risk,” and who should decide and how, proliferated in a wide range of technical domains. Social movements challenged expert def...
compensatory growth response and body composition of male sailfin molly, poecilia latipinna subjected to short-term starvation and subsequent feeding were studied for 54 days. four feeding schedules were used in this study: c, control (were fed to apparent satiation throughout the experiment); t1, treatment 1 (3 days starvation and 6 days refeeding); t2, treatment 2 (6 days starvation and 12 da...
This study focuses on how founding institutions impact intraorganizational capabilities and how such imprints may have different external manifestations in subsequent historical eras. We introduce the concept of exaptation to organizational theory, identifying an important process whereby the historical origin of a capability differs from its current usefulness. Three founding conditions—branch...
One strategy for estimating total catch is to employ two separate surveys that independently estimate total fishing effort and catch rate with the estimator for total catch formed by their product. Survey designs for estimating catch rate often involve interviewing the fishermen during their fishing episodes. Such roving designs result in incomplete episode data and characteristically have empl...
Catch is a mechanical state occurring in some invertebrate smooth muscles characterized by high force maintenance and resistance to stretch during extremely slow relaxation. During catch, intracellular calcium is near basal concentration and myosin crossbridge cyctng rate is extremely slow. Catch force is relaxed by a protein kinase A-mediated phosphorylation of sites near the N- and C- temini ...
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