نتایج جستجو برای: bottom trawling

تعداد نتایج: 60372  

2012
Jason Hall-Spencer Alex Rogers Jaime Davies Andy Foggo

A database of deep-water (> 200 m) antipatharians, scleractinians, and gorgonians has been assembled for the NE Atlantic to determine what their distribution and diversity was before coral habitats became heavily impacted by bottom fishing gear. Benthic sampling expeditions from 1868–1985 have provided 2547 records showing the deepwater distribution of 22 species of antipatharians, 68 species o...

Journal: :Check List 2022

Benthic fauna caught by ring dredge and 2 m beam trawl at the NATURA 2000 Sylt Outer Reef (SAR) Borkum Ground (BRG) sites in North Sea are examined relation to intensity of mobile bottom-trawling fisheries. Samples were taken from 33 stations two areas, collected benthic fauna, consisting infauna, epifauna, demersal fish was determined. A total 123 species found, phyla Chordata, Mollusca, Arthr...

Journal: :Biogeosciences 2021

Abstract. Bottom trawling in shelf seas can occur more than 10 times per year for a given location. This affects the benthic metabolism, through mortality of macrofauna, resuspension organic matter from sediment, and alterations physical sediment structure. However, impacts on carbon mineralization associated processes are not well known. Using modelling approach, effects increasing frequencies...

2014
Christopher K. Pham Hugo Diogo Gui Menezes Filipe Porteiro Andreia Braga-Henriques Frederic Vandeperre Telmo Morato

Bottom trawl fishing threatens deep-sea ecosystems, modifying the seafloor morphology and its physical properties, with dramatic consequences on benthic communities. Therefore, the future of deep-sea fishing relies on alternative techniques that maintain the health of deep-sea ecosystems and tolerate appropriate human uses of the marine environment. In this study, we demonstrate that deep-sea b...

2006
Bo Riemann Erik Hoffmann

During August 1988, effects of mussel dredging and bottom trawling on particulate material, internal nutrient loads, and oxygen balance were examined at 3 shallow locations in Limfjorden, Denmark. Water samples were taken simultaneously from areas exposed to fishing activities and from unused control areas. Sampling was carried out before fishing and 0 (immediately after fishing), 30, and 60 mi...

2018
Bjørn E. Grøsvik Tatiana Prokhorova Elena Eriksen Pavel Krivosheya Per A. Horneland Dmitry Prozorkevich

This study presents a large-scale monitoring of marine litter performed in the joint Norwegian–Russian ecosystem monitoring surveys in the period from 2010 to 2016 and contribute to documentation of the extent of marine litter in the Barents Sea. The distribution and abundance of marine litter were calculated by recordings of bycatch from the pelagic trawling in upper 60m, from bottom trawling ...

Journal: :Geophysical Research Letters 2021

Bottom trawling grounds have been expanding to deeper areas of the oceans since mid-XXth century, and mitigating strategies aimed protect fish stocks, such as temporal closures, recently implemented. Here we investigated biogeochemical properties sediment from a deep-sea ground in Palamós Canyon (NW Mediterranean) assess effects 2-months closure recovery sedimentary organic matter. In compariso...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید