نتایج جستجو برای: fishers equation

تعداد نتایج: 231415  

2017
Emilie Lindkvist Xavier Basurto Maja Schlüter

Small-scale fisheries (SSFs) in developing countries are expected to play a significant role in poverty alleviation and enhancing food security in the decades to come. To realize this expectation, a better understanding of their informal self-governance arrangements is critical for developing policies that can improve fishers' livelihoods and lead to sustainable ecosystem stewardship. The goal ...

2013
Bárbara Horta e Costa Marisa I. Batista Leonel Gonçalves Karim Erzini Jennifer E. Caselle Henrique N. Cabral Emanuel J. Gonçalves

Marine Protected Areas (MPAs) have been widely proposed as a fisheries management tool in addition to their conservation purposes. Despite this, few studies have satisfactorily assessed the dynamics of fishers' adaptations to the loss of fishing grounds. Here we used data from before, during and after the implementation of the management plan of a temperate Atlantic multiple-use MPA to examine ...

Journal: :Conservation biology : the journal of the Society for Conservation Biology 2008
E F Granek E M P Madin M A Brown W Figueira D S Cameron Z Hogan G Kristianson P de Villiers J E Williams J Post S Zahn R Arlinghaus

Globally, the number of recreational fishers is sizeable and increasing in many countries. Associated with this trend is the potential for negative impacts on fish stocks through exploitation or management measures such as stocking and introduction of non-native fishes. Nevertheless, recreational fishers can be instrumental in successful fisheries conservation through active involvement in, or ...

2002
Brian Crawford

Development of alternative livelihoods has become a popular policy to uplift the socioeconomic status of small-scale fishers and to reduce fishing pressure on overexploited fisheries. Seaweed farming has been incorporated into many community-based coastal resources management projects and fisheries management initiatives as an alternative livelihood option for fishers in tropical developing cou...

2012
Mourad W. Gabriel Leslie W. Woods Robert Poppenga Rick A. Sweitzer Craig Thompson Sean M. Matthews J. Mark Higley Stefan M. Keller Kathryn Purcell Reginald H. Barrett Greta M. Wengert Benjamin N. Sacks Deana L. Clifford

Anticoagulant rodenticide (AR) poisoning has emerged as a significant concern for conservation and management of non-target wildlife. The purpose for these toxicants is to suppress pest populations in agricultural or urban settings. The potential of direct and indirect exposures and illicit use of ARs on public and community forest lands have recently raised concern for fishers (Martes pennanti...

2008
Richard G. Dudley Richard Dudley

Fishery management complexity conspires to defeat seemingly obvious solutions to overfishing. Management may not adequately include decisions of fishers, management, and politicians. A new, simple, but acceptably complex fish population model is meshed with both fishery activities and management decision making. The population component is based on the common single stock biomass dynamic model....

Journal: :Sustainability 2022

Preserving small-scale fisheries is the main concern of governments in sustainable growth development because more than 90% fishers and workers make a living this business including floodplain wetlands currently affected by external shocks. Applying livelihoods approach (SLA) framework, research aimed to analyse impact environmental changes on fishing South Kalimantan, Indonesia. Questionnaire ...

2016
Frazen Tolentino-Zondervan Paul Berentsen Simon R Bush Larry Digal Alfons Oude Lansink

This study identifies the capabilities needed by small-scale fishers to participate in Fishery Improvement Projects (FIPs) for yellowfin tuna in the Philippines. The current literature provides little empirical evidence on how different models, or types of FIPs, influence the participation of fishers in their programs and the degree which FIPs are able to foster improvements in fishing practice...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه مازندران - دانشکده ریاضی 1390

ابتدا تعاریف و مفاهیمی را که در این رساله مورد استفاده قرار می گیرد را بیان می کنیم. سپس به معرفی فضاهایی می پردازیم که با آن ها سر و کار خواهیم داشت. و‎‎‎‎‎ در پایان به معرفی چند قضیه و اصل می پردازیم. رده ای از دستگاه های بیضوی شبه خطی تباهیده ‎egin{equation*}‎ ‎left{egin{array}{ll}‎ -‎div (h_1 (x)| abla u|^{p-2} abla u )=lambda a(x)|u|^{p-2}u‎ +‎lambda b(x)|u|^{alpha-1}|v|^{eta+1}u+f...

Journal: :Collegium antropologicum 2014
Eliseu Carbonell

Much has been written in recent years about the crisis in fisheries caused by the critical reduction in catches and about the strategies developed by local communities of fishers in response. The aim of this article is to demonstrate that the use of maritime heritage can also be considered part of these strategies. Like fishers elsewhere, Catalan small-scale fishers face severe threats to their...

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