Results 51 to 60 of about 32,183 (242)
A practical approach to the design, construction and operation of midwater trawl used in Kainji Lake, Nigeria [PDF]
, 1979 (19 page ...
Yaro, I.
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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
VERDA: A Multisampler Tool for Mesopelagic Nets
Journal of Marine Science and Engineering, 2023 Different types and systems to discriminate plankton samples at different strata in the water column have been developed in recent decades. For sampling at sufficient depth, opening and closing zooplankton multinets are ideal because there is no ...
Arturo Castellón, María Pilar Olivar
doaj +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
Use of stereo camera systems for assessment of rockfish abundance in untrawlable areas and for recording pollock behavior during midwater trawls [PDF]
, 2010 We describe the application of two types of stereo camera systems in fisheries research, including the design, calibration, analysis techniques, and precision of the data obtained with these systems. The first is a stereo video system deployed by using
Rooper, Christopher N. +2 more
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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
Atlantic Herring: History of a Fishery [PDF]
, 2010 In the first half of the 20th century, herring were fished primarily with small-scale, low-impact gear such as weirs and purse seines. But in the 1960s, large foreign fleets equipped with massive trawl nets began catching amounts of herring previously ...
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Differences in the trophic ecology of micronekton driven by diel vertical migration. [PDF]
, 2019 Many species of micronekton perform diel vertical migrations (DVMs), which ultimately contributes to carbon export to the deep sea. However, not all micronekton species perform DVM, and the nonmigrators, which are often understudied, have different ...
Angel M. V. +6 more
core +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