Results 31 to 40 of about 30,460 (306)

Stable isotopes reveal the effect of trawl fisheries on the diet of commercially exploited species

Scientific Reports, 2017
Bottom trawling can change food availability for benthivorous demersal species by (i) changing benthic prey composition through physical seabed impacts and (ii) by removing overall benthic consumer biomass increasing the net availability of benthic prey ...
Hilmar Hinz, Joan Moranta, Stephen Balestrini, Marija Sciberras, Julia R. Pantin, James Monnington, Alex Zalewski, Michel J. Kaiser, Mattias Sköld, Patrik Jonsson, Francois Bastardie, Jan Geert Hiddink   +11 more
doaj   +1 more source

Decapod abundance and species richness in the bycatch of Xiphopenaeus kroyeri (Heller, 1862) fishery, Santa Catarina, southern Brazil

Nauplius, 2019
We aimed to analyze the crustacean bycatch from the Xiphopenaeus kroyeri fishery in the Santa Catarina State and compare the bycatch’s biomass to that of the target species.
Gilson Stanski, Geslaine R. L. Goncalves, Raphael C. Grabowski, Milena R. Wolf, Antonio Leão Castilho   +4 more
doaj   +1 more source

Bottom trawling noise: Are fishing vessels polluting to deeper acoustic habitats?

Marine Pollution Bulletin, 2020
The impact of bottom trawling noise was quantified on two surrounding marine acoustic habitats using fixed mooring acoustic recorders. Noise during trawling activity is shown to be considerably louder than ambient noise and a nearby underway research ...
Eoghan Daly, M. White
semanticscholar   +1 more source

Modelling potential impacts of bottom trawl fisheries on soft sediment biogeochemistry in the North Sea†

Geochemical Transactions, 2001
Bottom trawling causes physical disturbance to sediments particularly in shelf areas. The disturbance due to trawling is most significant in deeper areas with softer sediments where levels of natural disturbance due to wave and tidal action are low.
Parker Ruth, Malcolm Stephen J, Jennings Simon, Duplisea Daniel E, Sivyer David B   +4 more
doaj   +1 more source

Quantification of Chaoborus and small fish by mobile upward-looking echosounding

Journal of Limnology, 2018
Chaoborus larvae inhabit frequently the water column of lakes, when they can be mistaken for small fish. Because larvae ascend up to the blind zone of downward-looking echo sounding at night, quantitative acoustic estimation of them is possible only with
Roman Baran, Michal Tušer, Helge Balk, Petr Blabolil, Martin Čech, Vladislav Draštík, Jaroslava Frouzova, Tomáš Jůza, Jan Kubecka   +8 more
doaj   +1 more source

Long-term carbon storage in shelf sea sediments reduced by intensive bottom trawling

Nature Geoscience
Bottom trawling represents the most widespread anthropogenic physical disturbance to seafloor sediments on continental shelves. While trawling-induced changes to benthic ecology have been widely recognized, the impacts on long-term organic carbon storage
Wenyan Zhang, Lucas Porz, R. Yılmaz, Klaus Wallmann, Tim Spiegel, Andreas Neumann, M. Holtappels, S. Kasten, Jannis Kuhlmann, N. Ziebarth, B. Taylor, H. T. M. Ho-Hagemann, Frank Bockelmann, U. Daewel, Lea Bernhardt, C. Schrum   +15 more
semanticscholar   +1 more source

Efficiency changes in bottom trawling for flatfish species as a result of the replacement of mechanical stimulation by electric stimulation

, 2020
Although fishing with electricity is illegal in the European Union, a number of temporary licences allowed converting beam trawlers to pulse trawling.
J. Poos, N. Hintzen, J. V. van Rijssel, A. Rijnsdorp   +3 more
semanticscholar   +1 more source

Little Evidence of Benthic Community Resilience to Bottom Trawling on Seamounts After 15 Years

Frontiers in Marine Science, 2019
The resilience and recovery dynamics of deep-sea habitats impacted by bottom trawling are poorly known. This paper reports on a fishing impact recovery comparison based on four towed camera surveys over a 15-year period (2001-2015) on a group of small ...
M. Clark, D. Bowden, A. Rowden, R. Stewart   +3 more
semanticscholar   +1 more source

Estimating Spatiotemporal Fishing Effort of Trawlers with Vessel-Monitoring System Data: A Case Study of the Sea Area of the Bohai Sea and the Yellow Sea, China

Journal of Marine Science and Engineering, 2023
Measuring the distribution of the fishing effort of trawlers is of great significance for describing marine fishery activities, quantifying fishing systems in terms of marine ecological pressure, and revising the regulations of fishing.
Dan Li, Feng Lu, Shuo Xu, Huiyuan Liu, Muhan Xue, Guohui Cui, Zhenhua Ma, Hui Fang, Yu Wang   +8 more
doaj   +1 more source

The influence of rivers on seabird foraging ecology

Biological Reviews, EarlyView.
ABSTRACT Rivers act as vital arteries to the world's oceans, delivering fresh water and nutrients that sustain marine ecosystems. Globally, river flow increasingly is being altered by climate change and anthropogenic pressures; yet the significance of rivers to predatory marine species, such as seabirds, and the extent to which river‐related changes ...
Julia B. Morais, Andre Chiaradia, Richard D. Reina   +2 more
wiley   +1 more source