Results 121 to 130 of about 495,213 (288)
Communications Earth & EnvironmentPlanktonic mixotrophs, including ciliates, are abundant, yet understudied, mediators of primary and secondary production in aquatic food webs. Here, we report high-resolution in situ observations of a thin layer—a vertically limited patch of high ...
Ranjoy Barua +10 more
doaj +1 more source
Sediment trap preservative choice impacts particle‐associated microbial community composition
Limnology and Oceanography: Methods, EarlyView.Abstract Understanding and quantifying the microbial contribution to particulate organic matter (POM) flux and carbon cycling in the ocean relies largely on the collection of sinking POM. A critical aspect of evaluating microbial communities on sediment trap‐collected POM is their preservation until recovery and sample processing.
Nicola L. Paul +7 more
wiley +1 more source
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
Ocean gravity and geoid determination [PDF]
Gravity anomalies have been recovered in the North Atlantic and the Indian Ocean regions. Comparisons of 63 2 deg x 2 deg mean free air gravity anomalies recovered in the North Atlantic area and 24 5 deg x 5 deg mean free air gravity anomalies in the ...
Brown, R. D. +3 more
core +1 more source
Limnology and Oceanography: Methods, EarlyView.Abstract The difficulty of sampling zooplankton communities in situ has driven advancements in autonomous, remote sensing technology. The goal of this paper was to perform a gear comparison study testing the performance of one such piece of technology—a glider‐mounted four‐frequency echosounder—against traditional shipboard methods of measuring ...
Delphine Mossman +3 more
wiley +1 more source
Lipid correction of hydrogen stable isotope ratios in fish
Limnology and Oceanography: Methods, EarlyView.Abstract Lipids are known to affect stable isotope ratio of organisms, especially δ13C values, and simple arithmetic lipid‐correction procedures have been developed based on the carbon to nitrogen ratio (C : N) that is a proxy for lipid content. Equivalent issues will likely arise with the increasing use of hydrogen isotopes in ecology, but as yet no ...
Kang Wang +5 more
wiley +1 more source
Comparison on vertical distribution of pelagic copepod abundance, biomass and community structure between Atlantic and Pacific sector of the Arctic Ocean [PDF]
, 2018 Recently, a great reduction of sea ice coverage has been reported for the Arctic Ocean during summer. The reduction has been reported to be greater for regions which connect the Arctic with the Atlantic and the Pacific Ocean, respectively.
Abe, Yoshiyuki +5 more
core
International Journal of Osteoarchaeology, EarlyView.ABSTRACT This paper explores the historical ecology and biogeography of two fish species that are currently endangered in the North American Great Lakes region, that were of great importance to the Indigenous people in the region, and that are the focus of ongoing conservation efforts on the part of descendant communities: lake sturgeon (Acipenser ...
Suzanne Needs‐Howarth +4 more
wiley +1 more source
Oikos, EarlyView.Understanding the ecological implications of species coexistence is central to biodiversity studies and to identify environmental and anthropogenic drivers of ecosystem dynamics, where ecological network analysis offers valuable insights. This study examines the complexity, structure, and potential responses to disturbances of the Strait of Magellan's ...
Claudia D. Andrade +4 more
wiley +1 more source