نتایج جستجو برای: sustainable exploitation
تعداد نتایج: 149106 فیلتر نتایج به سال:
A Model of a Multi-Site Fishery with Variable Price: from Over-Exploitation to Sustainable Fisheries
The biological indicators of Chrysichthys walkeri (Claroteid catfishes) in lake Volta were investigated for their sustainable management. A total 846 samples collected from the March to December 2020. recorded length fish was analyzed using TropFishR. von Bertalanffy parameters including asymptotic (L∞), growth rate (K), and performance index (Φ) estimated as 28.88 cm, 0.42 per year, 2.54 respe...
BACKGROUND The NE region of India falls in the global hotspot of biodiversity. Wild edible plants (WEPs) are widely consumed in the daily diet of the local people. WEPs are critical for the sustenance of ethnic communities and also as a source of income. However, WEPs received a little attention in research activities, economic development, biodiversity conservation and sustainable management. ...
AIM The aim of this study was to explore nurses' perceptions of climate and environmental issues and examine how nurses perceive their role in contributing to the process of sustainable development. BACKGROUND Climate change and its implications for human health represent an increasingly important issue for the healthcare sector. According to the International Council of Nurses Code of Ethics...
Not yet two decades after the publication of Our Common Future, the world’s political and environmental landscape has changed significantly. Nonetheless, we argue that the concept and practice of sustainable development (SD)–as guiding institutional principle, as concrete policy goal, and as focus of political struggle–remains salient in confronting the multiple challenges of this new global or...
The Fourth World Conference on Women acknowledged that environmental degradation 1) disproportionately affects poor women who are powerless to control it, 2) is linked to poverty, and 3) jeopardizes women's reproductive health. Thus, the Platform for Action addresses environmental inequalities among its 12 areas of critical concern, and the governments who signed the consensus agreed to take a...
The form of Darwinian selection has important ecological and management implications. Negative effects of harvesting are often ascribed to size truncation (i.e. strictly directional selection against large individuals) and resultant decrease in trait variability, which depresses capacity to buffer environmental change, hinders evolutionary rebound and ultimately impairs population recovery. How...
Herring, Clupea harengus, is one of the ecologically and commercially most important species in European northern seas, where two distinct ecotypes have been described based on spawning time; spring and autumn. To date, it is unknown if these spring and autumn spawning herring constitute genetically distinct units. We assessed levels of genetic divergence between spring and autumn spawning herr...
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