نتایج جستجو برای: Shrimp beam trawl

تعداد نتایج: 124730  

Bong-Jin Cha Heui-Chun Ahn In-Ok Kim Sam-Kwang Cho, R. Craig

  This study aimed to design a bycatch reduction device (BRD) for shrimp beam trawl, which is manufactured by flexible materials to reduce bycatch for the gear in the South Sea of Korea. The model test was carried out to understand the shape of the gear in the water and to measure the variation of flow speed due to the BRD in a circulating water channel. Catches were compared between a shrimp b...

Bong-Jin Cha, Heui-Chun Ahn, In-Ok Kim, Sam-Kwang Cho, R. Craig ,

  This study aimed to design a bycatch reduction device (BRD) for shrimp beam trawl, which is manufactured by flexible materials to reduce bycatch for the gear in the South Sea of Korea. The model test was carried out to understand the shape of the gear in the water and to measure the variation of flow speed due to the BRD in a circulating water channel. Catches were compared between a shrimp b...

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...

2005
Britta E. Schaffmeister Jan Geert Hiddink Wim J. Wolff

The Banc d’Arguin in Mauritania is an area characterised by shallow waters and tidal flats with extensive seagrass beds. The aim of this study was to determine the role of the Banc d’Arguin tidal flats as a habitat and a nursery for shrimps. Shrimps were sampled in the Baie d’Aouatif in the intertidal (ponds, Zostera noltii seagrass beds and bare sediment) with a push net during high and low ti...

2013
Menothuparambil Ravunny Boopendranath Puthra Pravin Therodath Rajan Gibinkumar Sarasan Sabu Vettiyattil Ramakrishnan Madhu

Penaeid shrimp is a major resource in India contributing about 7.4% of the total marine fish landings. They are mostly landed by small mechanized trawlers. Shrimp trawling generates large quantities of bycatch mostly consisting of juvenile fishes, due to use of small mesh size in codends of trawl nets. Juvenile Fish Excluder cum Shrimp Sorting Device (JFE-SSD) is a bycatch reduction device with...

Journal: :Voprosy rybolovstva 2022

Since 2022, the possibility of trawl fishing on Khanka Lake has been opened. In 2018 and 2020, accounting work was carried out using a beam trawl. Studies have shown that highest biomass in catches far eastern freshwater shrimp (Palaemon modestus), noodle fish, sharpbelly, bagrid catfish humpback. According to survey, stocks small fish species amounted 3,5–4,6 thousand tons. Taking into account...

Journal: :بهره برداری و پرورش آبزیان 0
مرتضی ایقانی دانشجوی دانشگاه علوم کشاورزی و منابع طبیعی گرگان سید یوسف پیغمبری استادیار صید بهره برداری آبزیان دانشگاه علوم کشاورزی و منابع طبیعی گرگان پریا رئوفی دانشجوی کارشناسی ارشد صید و بهره برداری آبزیان دانشگاه علوم کشاورزی و منابع طبیعی گرگان

with regard to bycatch problem, this is the first study of the shrimp trawl bycatch in different depth variation in hormuzgan coastal waters. samples were collected during shrimp season in october 2011 and november 2012. the study area was divided into two regions: hormuz-keshtisoukhte (56°, 27ʹ e/27°, 07ʹ n) to (56°, 18ʹ e/27°, 06ʹ n) and keshtisoukhte-toola (56°, 18ʹ e/27°, 06ʹ n) to (55°, 58...

2005

Objective The West Coast Groundfish Observer Program (WCGOP) collects at-sea data from limited trawl and fixed gear fleet as well as from open access nearshore, prawn, and shrimp fleets. This information is vital for determining the amount of discard and total catch of groundfish species in this region. This report summarizes discard data collected by the West Coast Groundfish Observer Program ...

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