نتایج جستجو برای: sustainable exploitation

تعداد نتایج: 149106  

2005
Jerald S. Ault Steven G. Smith James A. Bohnsack

Simulation and empirical analyses were conducted to evaluate the utility and robustness of average length (Lbar) of animals in the exploited population as an estimator of fishing mortality (F), and therefore as an indicator of exploitation status for Florida coral-reef fish. Simulation results showed that the Lbar estimator of fishing mortality was relatively insensitive to trends in recruitmen...

Journal: : 2022

Natural resources are limited and uncontrolled exploitation can have negative effects on the environment. It is necessary to find approach of their sustainable use. Sustainable development framework for defining strategies continuous state social progress, without harm environment natural essential human activities in future. Model that regulates use considers legal regulations energy. Goal ens...

2015
Caizhi Sun Kunling Zhang Wei Zou Bin Li Marc A. Rosen

The oceans are a crucial source of natural resources for human development, as productive terrestrial resources increasingly reach their limits of economic and ecological exploitation. With increasing human impact on oceans, it is vital to maintain a sustainable human–ocean relationship. We present an indicator system and information entropy model to assess the evolution of human–ocean systems ...

2013
Klas Andersson Annika Lindskog Johan Martinsson

Currently, politicians, university representatives, scholars and leading NGOs share a strong belief in the ability of educational systems to generate positive attitudes to sustainable development (SD) among citizens, with the idea of Education for Sustainable Development (ESD) as perhaps the most apparent expression of this conviction. The aim of this paper is to investigate whether ESD might h...

Journal: :international journal of environmental research 2011
a. mossalanejad

economic policies need to be analyzed within consistent and coherent framework. in the absence of an operational framework the policy analyst is confronted with an indeterminate model to work with. this paper intends to offer a specific framework for economic-environment integration to highlight the role of economic policy and environment in sustainable development for the purpose of empiri...

2002
Randall E. Brummett Guy G. Teugels

Central Africa’s tropical rainforests and their associated biodiversity are being destroyed at a rate of 1 million ha/year by poorly regulated timber exploitation and slash & burn agriculture. An important component of the rainforest is the river that drains it. Although very little studied and poorly understood, these rivers drain millions of square kilometres and have been estimated to contai...

Jenyo-Oni Adetola Obe Bernardine Wuraola

For the purpose of sustainable exploitation of the fishery resources of Oni River, Ogun State, Nigeria, the fish biodiversity assessment was carried out. This was conducted by enumerating and identifying fish species composition, measuring the fish length, fish weight, assessing the fish abundance and biomass, determining the length-weight relationships and the length-frequency of the fishes. A...

2016
Caroline Schill Nanda Wijermans Maja Schlüter Therese Lindahl

Cooperation amongst resource users holds the key to overcoming the social dilemma that characterizes community-based common-pool resource management. But is cooperation alone enough to achieve sustainable resource use? The short answer is no. Developing management strategies in a complex social-ecological environment also requires ecological knowledge and approaches to deal with perceived envir...

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