Results 71 to 80 of about 30,460 (306)

Bottom trawling contribution to the spatio-temporal variability of sediment fluxes on the continental shelf of the Bay of Biscay (France)

Marine Geology, 2019
Based on experiments, a trawling-induced erosion dynamics was included in a 3D realistic and pre-validated hydro-sedimentary model so as to assess its contribution to the overall regional sediment dynamics in the specific case of the Bay of Biscay ...
B. Mengual, P. Hir, F. Cayocca, T. Garlan   +3 more
semanticscholar   +1 more source

Urban bats show dietary flexibility in aquatic arthropod consumption at urban and rural waterbodies

Wildlife Biology, EarlyView.
Urban waterbodies are critical for biodiversity and provide feeding grounds for insectivorous bats. Yet, how urbanisation affects bats' food choices at urban waterbodies and the role of emergent aquatic arthropods remain poorly understood. We compared the diet of three urban bat species – Vespadelus vulturnus, Chalinolobus gouldii,and Myotis macropus –
Tanja M. Straka, Melissa E. Carew, Isabel Valenzuela, Stephen R. Griffiths, Pia E. Lentini, Linda F. Lumsden, Rahul Rane, Rodney Ree van der   +7 more
wiley   +1 more source

The electrified benthic frame trawl (EBFT): A new approach for sampling benthic fish species in a large river – The experiences of the Joint Danube Survey 3

Frontiers in Marine Science, 2015
In large rivers, such as the Danube, standardized and representative sampling of fish is still problematic. Until now, night time shoreline electrofishing proved to be the most comprehensive fish assessment method, however, it is not suitable for ...
Ágnes Irma György, Vinzenz Bammer, Michael Schabuss, Luchezar Pehlivanov   +3 more
doaj   +1 more source

Improved trawling setup for sampling pelagic juvenile fish communities in small inland bodies of water [PDF]

Acta Ichthyologica et Piscatoria, 2018
Trawling juveniles is an effective method to estimate 0+ fish assemblages in inland bodies of water. Trawlers are usually moved between bodies of water by ground transport, which restricts the size, weight and type of the equipment able to be transported,
T. Jůza, Z. Sajdlová, M. Čech, V. Draštík, L. Kočvara, M. Tušer., J. Kubečka   +6 more
doaj   +3 more sources

Crystallography in Open Science and its open educational resources

Acta Crystallographica Section A, EarlyView.
Open Science is the movement to make scientific research, the data and their dissemination available to any member of an inquiring society, from professionals to citizens, irrespective of their economic situation. The IUCr provides fully open educational resources to Global South and Global North readers and authors.This article presents a review of ...
John R. Helliwell
wiley   +1 more source

How do government subsidies affect the economic viability of industrial shrimp fisheries on the Amazon Continental Shelf?

Frontiers in Marine Science
The southern brown shrimp (Penaeus subtilis) is the primary crustacean species commercially exploited by the industrial trawl shrimp fleet operating over the Amazon continental shelf.
Janayna Galvão de Araújo, Marcos Antônio Souza Santos, Bianca Bentes, Ualerson Peixoto, Flávia Lucena Fredou, Victoria J. Isaac   +5 more
doaj   +1 more source

Particle sources and transport in stratified Nordic coastal seas in the Anthropocene

Elementa: Science of the Anthropocene, 2018
Particles of all origins (biogenic, lithogenic, as well as anthropogenic) are fundamental components of the coastal ocean and are re-distributed by a wide variety of transport processes at both horizontal and vertical scales.
Torsten Linders, Eduardo Infantes, Alyssa Joyce, Therese Karlsson, Helle Ploug, Martin Hassellöv, Mattias Sköld, Eva-Maria Zetsche   +7 more
doaj   +1 more source

Effects of chronic bottom trawling on soft-seafloor macrofauna in the Kattegat

Marine Ecology Progress Series, 2018
: Chronic impact studies of bottom trawling aiming to reveal long term effects on 22 benthic organisms are often hampered by the lack of comparable untrawled conditions and the 23 difficulty to assess the spatial distribution of trawling intensity.
M. Sköld, P. Göransson, P. Jonsson, Francois Bastardie, M. Blomqvist, S. Agrenius, J. Hiddink, H. Nilsson, V. Bartolino   +8 more
semanticscholar   +1 more source

Offshore wind farm avoidance by a discard‐feeding seabird is independent of local fishing activity

Journal of Animal Ecology, EarlyView.
Fishing is not allowed within wind farms; therefore, discard‐feeding seabirds may appear to avoid wind farm areas. We found that most Lesser Black‐backed Gulls avoided the wind farm area, but not each individual in each period. Avoidance of the wind farm was not driven by fishing exclusion within its perimeter.
Rosemarie Kentie, Rob S. A. van Bemmelen, Judy Shamoun‐Baranes, Eric W. M. Stienen, Ruben C. Fijn   +4 more
wiley   +1 more source

300 Years of Degradation in Wales Estuaries and Coasts

Natural Resources Forum, EarlyView.
ABSTRACT The world's oceans are in a severe state of degradation, yet our understanding of that degradation is often based on changes observed only in the past 20–50 years. This narrow view leads to marine conservation efforts that aim to preserve already degraded ecosystems, shaped by shifted ecological baselines.
Richard K. F. Unsworth, Blaise Bullimore, Leanne C. Cullen‐Unsworth, Benjamin L. H. Jones   +3 more
wiley   +1 more source