نتایج جستجو برای: trawl fishery

تعداد نتایج: 9209  

2014
Ludvig A. Krag Bent Herrmann Svein A. Iversen Arill Engås Sigve Nordrum Bjørn A. Krafft

Trawlers involved in the Antarctic krill (Euphausia superba) fishery use different trawl designs, and very little is known about the size selectivity of the various gears. Size selectivity quantifies a given trawl's ability to catch different sizes of a harvested entity, and this information is crucial for the management of a sustainable fishery. We established a morphological description of kr...

Journal: :international journal of aquatic biology 0
erdoğan çiçek nevşehir haci bektas veli university, faculty of art and science, department of biology, 50300 nevşehir, turkey. mehmet karataş karamanoglu mehmetbey university, faculty of art and science, department of biology, karaman, turkey. dursun avşar cukurova university, faculty of fisheries, 01330 adana, turkey. mohammad moradi department of biology, faculty of science, university of zanjan, zanjan, iran.

the catch composition of the bottom trawl fishery along the coasts of karataş was evaluated in the 2002-2003 fishing season. a total of 110 species were registered, the fishes showed the highest diversity (90 species) followed by 15 crustaceans species and 5 species of cephalopods. the highest catch per unit effort (cpue) value (66.8 kg h -1 ) was recorded in september when the fishing season w...

Journal: :Conservation biology : the journal of the Society for Conservation Biology 2013
Mary Gleason Erika M Feller Matt Merrifield Stephen Copps Rod Fujita Michael Bell Steve Rienecke Chuck Cook

Private-sector financial and legal transactions have long been used to protect terrestrial habitats and working landscapes, but less commonly to address critical threats in marine environments. Transferrable and marketable fishing privileges, including permits and quotas, make it possible to use private-sector transactions as conservation strategies to address some fishery management issues. Ab...

2013
Robert W. Hannah Stephen A. Jones

Tests of trawl footrope modifications to reduce the bycatch of eulachon (Thaleichthys pacificus) and other small demersal fishes in the ocean shrimp (Pandalus jordani) trawl fishery The Oregon Department of Fish and Wildlife prohibits discrimination in all of its programs and services on the basis of race, color, national origin, age, sex or disability. If you believe that you have been discrim...

2016
Bent Herrmann Manu Sistiaga Juan Santos Antonello Sala

The aim of this study was to provide practitioners working with trawl selectivity with general and easily understandable guidelines regarding the fish sampling effort necessary during sea trials. In particular, we focused on how many fish would need to be caught and length measured in a trawl haul in order to assess the selectivity parameters of the trawl at a designated uncertainty level. We a...

2016
Irena Bitunjac Nikša Jajac Ivan Katavić Kannan Govindan

A decision support concept (DSC) for sustainable management of the bottom trawl fleet was created in line with ecosystem-based management. It is based on principles that integrate ecological, social and techno-economic aspects of trawl fisheries in a multicriteria analysis approach. For the sake of greater transparency and improved stakeholder participation, elements of the proposed multicriter...

2011
Alana Grech Rob Coles

BACKGROUND The Queensland East Coast Otter Trawl Fishery (ECOTF) for penaeid shrimp fishes within Australia's Great Barrier Reef World Heritage Area (GBRWHA). The past decade has seen the implementation of conservation and fisheries management strategies to reduce the impact of the ECOTF on the seabed and improve biodiversity conservation. New information from electronic vessel location monitor...

2014
Robert W. Hannah

Evaluating the population-level impact of the ocean shrimp (Pandalus jordani) trawl fishery on the southern distinct population segment of eulachon (Thaleichthys pacificus) The Oregon Department of Fish and Wildlife prohibits discrimination in all of its programs and services on the basis of race, color, national origin, age, sex or disability. If you believe that you have been discriminated ag...

2017
Sara M. Turner Jonathan A. Hare John P. Manderson John J. Hoey David E. Richardson Christopher L. Sarro Ryan Silva

Concern over incidental catches in commercial fisheries has been increasing, and while simple mitigation strategies have been effective, few effective mitigation strategies have been established for more complex species interactions. Incidental catches of alewife (Alosa pseudoharengus) and blueback herring (A. aestivalis) in the commercial Atlantic herring (Clupea harengus) fishery have receive...

2001
Fiona J. Manson David J. Die

Marine protected areas (MPAs) are becoming a favoured management strategy for the conservation of marine biodiversity. We present an analysis of how fishery data from a trawl fishery in northern Australia can contribute to the process of developing a system of candidate MPAs. We investigate ways of using fishing grounds, bioregion and depth information as a means of classifying ecosystems, and ...

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