Results 21 to 30 of about 8,740 (202)
In situ determination of bottom trawl ground gear contact [PDF]
, 2001 Exact definition of towed distance with proper ground gear contact is an essential parameter in bottom trawl swept area estimates of fish abundance. Errors in this key parameter may lead to a first order bias in abundance estimates of demersal fish.
Ramberg, Kjell, Ona, Egil, Engås, Arill
core +3 more sources
Quantifying the Physical Impact of Bottom Trawling Based on High-Resolution Bathymetric Data
Remote Sensing, 2022 Bottom trawling is one of the most significant anthropogenic pressures on physical seafloor integrity. The objective classification of physical impact is important to monitor ongoing fishing activities and to assess the regeneration of seafloor integrity
Mischa Schönke +2 more
doaj +1 more source
Известия ТИНРО, 2023 On the background of water structure, general patterns of the sandfish Arctoscopus japonicus distribution in Peter the Great Bay are determined on the data of bottom trawl surveys in spring, summer and fall seasons. When the larval stage is finished, the
Yu. I. Zuenko, V. V. Panchenko
doaj +1 more source
Frontiers in Marine Science, 2021 On January 1, 2020, the United States (U.S.) government implemented new regulations increasing total closed areas to bottom trawl fishing by 363,513 km2, including a net increase of 44,498 km2 in essential fish habitat conservation areas at fishable ...
Geoffrey G. Shester +5 more
doaj +1 more source
Turning the tide on bottom trawling [PDF]
Aquatic Conservation: Marine and Freshwater Ecosystems, 2015 Trawling is universally recognized as one of the most destructive fishing methods, causing irreversible damage through scraping large tracts of bottom habitats. These habitats then suffer from declines in ecosystem functions and services, and collapses in populations of trawled species. The plethora of studies on the unsustainable impacts of commercial
Loh, Tse-Lynn, Jaafar, Zeehan
openaire +2 more sources
Aquatic Living Resources, 2020 The objective of this study was to determine the population distribution and some biological aspects for fish stock assessment of the greater forkbeard Phycis blennoides along the Algerian basin. The distribution of P.
Alioua Zakia +7 more
doaj +1 more source
Impact of bottom trawling on sediment biogeochemistry: a modelling approach [PDF]
Biogeosciences, 2020 Abstract. Bottom trawling in shelf seas can occur more than 10 times per year for a given location. This affects the benthic metabolism, through a mortality of the macrofauna, resuspension of organic matter from the sediment, and alterations of the physical sediment structure.
E. De Borger +7 more
openaire +5 more sources
Effects of bottom trawling on fish foraging and feeding [PDF]
Proceedings of the Royal Society B: Biological Sciences, 2015 The effects of bottom trawling on benthic invertebrates include reductions of biomass, diversity and body size. These changes may negatively affect prey availability for demersal fishes, potentially leading to reduced food intake, body condition and yield of fishes in chronically trawled areas.
Andrew Frederick Johnson +4 more
openaire +3 more sources
A Theoretical Approach to Determine the Total Resistance on Different Trawl Gears Used in Turkey
Aquatic Sciences and Engineering, 2022 The study aims to theoretically determine the total resistance forces acting on bottom trawls used in the commercial trawl fishery around the Turkish Peninsula.
Ozan Soykan, Celalettin Aydın
doaj +1 more source
, 2023 During a MARSYS student training cruise (HE600) three bottom trawl hauls were conducted on 2022 June 3., 7. and 10. in the southern North Sea. The catch per unit of effort and biomass data originate from bottom trawl hauls (RV Heincke Schollensack, AWI),
Floeter, Jens
core +1 more source