نتایج جستجو برای: fishing oil well

تعداد نتایج: 1657787  

Journal: :Current Biology 2009
Nigel Williams

The swordfish now ranks as one of the Mediterranean's most vulnerable species, the EU announced last month, proposing new measures to protect diminishing stocks. As well as continuing a swordfish fishing ban for two consecutive months each year — October and November this year — the EU wants to prevent the 'by-catch' of swordfish by vessels that are supposed to be fishing for other species. Thi...

2005
M. E. Kuhl N. M. Steiger F. B. Armstrong Tu H. Truong Brian J. Rothschild Farhad Azadivar

This paper presents a decision support system that is oriented toward fisheries policy and management decisions. The important current issues involve the development of an optimal harvesting plan for the fishing industry. A simulation optimization has been built to assist authorities in scheduling for a fleet of hundreds of vessels in terms of time and location of fishing, as well as amount and...

Journal: :Journal of the Japanese Association for Petroleum Technology 1938

2017
Miguel Andreu-Cazenave Maria Dulce Subida Miriam Fernandez

There is an urgent need to quantify the impacts of artisanal fisheries and define management practices that allow for the recovery and conservation of exploited stocks. The extent of illegal catch is particularly critical as a driver of overexploitation in artisanal fisheries. However, the lack of data at proper spatial scales limits the evaluation of illegal fishing and effectiveness of manage...

2011
Sean Pascoe Chris Wilcox C. Josh Donlan

The concept of biodiversity offsets is well established as an approach to environmental management. The concept has been suggested for environmental management in fisheries, particularly in relation to the substantial numbers of non-target species--seabirds in particular--caught and killed as incidental bycatch during fishing activities. Substantial areas of fisheries are being closed to protec...

2016
Jorge Orós Natalia Montesdeoca María Camacho Alberto Arencibia Pascual Calabuig Carlos E. Ambrósio

AIMS The aims of this study were to analyze the causes of stranding of 1,860 loggerhead turtles (Caretta caretta) admitted at the Tafira Wildlife Rehabilitation Center in Gran Canaria Island, Spain, from 1998 to 2014, and to analyze the outcomes of the rehabilitation process to allow meaningful auditing of its quality. METHODS Primary causes of morbidity were classified into seven categories:...

2009
Diana M T Sharpe Andrew P Hendry

Age and size at maturation have declined dramatically in many commercial fish stocks over the past few decades - changes that have been widely attributed to fishing pressure. We performed an analysis of such trends across multiple studies, to test for the consistency of life history changes under fishing, and for their association with the intensity of exploitation (fishing mortality rate). We ...

Journal: :Resources 2023

In February 2023, an oil tanker carrying 5660 bbl of industrial fuel sank off Naujan in the Philippines, causing spill waters Oriental Mindoro and nearby provinces. The disaster affected fishing communities as well marine ecosystems including Verde Island Passage, which is at “center world’s biodiversity”. This study assessed immediate social economic impacts this on various coast. We conducted...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس 1389

در حالت کلی معادلات حاکم بر یک مدل ریاضی از مخزن را نمی توان بوسیله روشهای تحلیلی حل کرد، در حالیکه یک مدل عددی می تواند بوسیله کامپیوتر جوابی تقریبی ارائه دهد. در این پایان نامه، یک دستگاه معادلات دیفرانسیل معمولی توسط گسسته-سازی معادله حاکم بر جریان شعاعی تک فازی نفت بسمت یک چاه (معادله چاه آزمایی) به دست آمده است. این سیستم شامل محاسبه تابع ماتریسی (exp(ka است که در آن k گام زمانی و a ماتریس...

2011
Lynn M. Grattan Sparkle Roberts William T. Mahan Patrick K. McLaughlin W. Steven Otwell J. Glenn Morris

BACKGROUND Although public concern has focused on the environmental impact of the Deepwater Horizon oil spill, the public health impact on a broad range of coastal communities is minimally known. OBJECTIVE We sought to determine the acute level of distress (depression, anxiety), mechanisms of adjustment (coping, resilience), and perceived risk in a community indirectly impacted by the oil spi...

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