Results 31 to 40 of about 2,895 (199)
Seabed classification in the Gulf of Alaska from acoustic surveys using deep learning
Limnology and Oceanography: Methods, EarlyView.Abstract High‐resolution mapping of seafloor habitats has wide applications for fisheries, conservation efforts, offshore infrastructure planning, mineral extraction, and scientific modeling. This study leverages existing widespread single‐beam acoustic data and machine learning to create habitat maps for the Gulf of Alaska at a spatial resolution of ...
Karuna Agarwal +2 more
wiley +1 more source
Mapping EU fishing activities using ship tracking data
, 2015 Information and understanding of fishing activities at sea are fundamental components of marine knowledge and maritime situational awareness. Such information is important to fisheries science, public authorities and policy makers.
Alessandrini, Alfredo +5 more
core +1 more source
Capelin Size, Condition, and Abundance Through Multiple Heatwaves in Alaska
Fisheries Oceanography, EarlyView.ABSTRACT Capelin (Mallotus spp.) are pelagic forage fishes that can be especially abundant in sub‐arctic marine ecosystems and are important prey for upper trophic‐level consumers. Abundance and distribution of capelin have been linked to ocean temperature, but the magnitude and directionality of thermal sensitivity can vary regionally.
Robert M. Suryan +7 more
wiley +1 more source
Environmental Drivers of Jumbo Squid During Fishery Collapse in the Gulf of California (2019–2024)
Fisheries Oceanography, EarlyView.ABSTRACT The jumbo squid (Dosidicus gigas) is a cephalopod endemic to the eastern Pacific with significant ecological and economic importance. Its exploitation in the Gulf of California (GC) peaked in the 1990s, with catches exceeding 100,000 tons, but collapsed in 2009 and virtually disappeared by 2015, largely due to environmental changes and ...
Mario Vásquez‐Ortiz +5 more
wiley +1 more source
Ocean distribution of the American shad (Alosa sapidissima) along the Pacific coast of North America [PDF]
, 2011 We examined the incidental catches of American shad (Alosa sapidissima) taken during research cruises and in commercial and recreational landings along the Pacific coast of North America during over 30 years of sampling.
Fisher, Joseph P., Pearcy, William G.
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Modeling of the Midwater Trawl Dynamical Behavior Based on R Language [PDF]
Proceedings of the 2015 International Conference on Mechatronics, Electronic, Industrial and Control Engineering, 2015 The midwater trawl is used widely in many oceanic fisheries. In this study, the midwater trawl dynamical behavior was simulated and modeled with the mathematical mechanic equations based on R language platform. A lump-mass and spring method was used to build the physical model.
Yingqi Zhou +6 more
openaire +1 more source
Fisheries Oceanography, EarlyView.ABSTRACT Small pelagic fish and other forage species are patchily distributed over space and time, resulting in variable foraging conditions experienced by their predators. The high‐resolution data necessary to understand the spatiotemporal structure of forage communities are challenging to collect with expensive fishery‐independent surveys, meaning ...
Wesley L. Greentree +4 more
wiley +1 more source
Journal of Marine Science and EngineeringDeep-sea fisheries depend on various fishing methods, including trawling, purse seining, and longline fishing, among others. Studying the dynamic characteristics of trawling operations is essential for the trawl mechanism.
Dapeng Zhang +4 more
doaj +1 more source
Survey of fishes and water properties of south San Francisco Bay, California, 1973-82 [PDF]
, 1989 The objective of this study was to describe the physical and ichthyological changes occurring seasonally and annually in the south San Francisco Bay, based on the results of 2,561 otter trawl and water samples obtained between February 1973 and June ...
Pearson, Donald E.
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