Results 71 to 80 of about 6,785 (205)

Trophic-Mediated Pelagic Habitat Structuring and Partitioning by Sympatric Elasmobranchs

Frontiers in Marine Science, 2022
Pelagic elasmobranchs are key elements of oceanic ecosystems and must be preserved if marine trophic networks are to be kept in balance. Yet, they face intense fishing pressure that has been threatening their populations worldwide.
André S. Afonso, André S. Afonso, Bruno C. L. Macena, Bruno Mourato, Natalia P. A. Bezerra, Sibele Mendonça, Joyce D. G. R. de Queiroz, Fábio H. V. Hazin   +7 more
doaj   +1 more source

Can mesopelagic mixed layers be used as feed sources for salmon aquaculture? [PDF]

, 2019
Salmon aquaculture is in great need of good quality balanced protein and lipid sources, particularly marine omega-3 (n-3) long-chain polyunsaturated fatty acids (LC-PUFA), to sustain a further development of the industry.
Lall, Santosh, Strand, Espen, Ringø, Einar, Tocher, Douglas R., Lall, Santos P., Lall, Santosh P., Melle, Webjorn, Tocher, Douglas R, Sprague, Matthew, Nørstebø, Jo, Olsen, Rolf E, Melle, Webjørn, Melle, Webjørn Raunsgård, Strand, E., Nørstebø, Jo Trelvik, Olsen, Rolf Erik, Sprague, M.   +16 more
core   +1 more source

The protist community traces seasonality and mesoscale hydrographic features in the oligotrophic Sargasso Sea

Frontiers in Marine Science, 2022
Protists represent the majority of the eukaryotic diversity in the oceans. They have different functions in the marine food web, playing essential roles in the biogeochemical cycles.
Leocadio Blanco-Bercial, Rachel Parsons, Luis M. Bolaños, Rod Johnson, Stephen J. Giovannoni, Ruth Curry   +5 more
doaj   +1 more source

Estimating Patagonian toothfish (Dissostichus eleginoides) length at first maturity from their age, sex and temperature experience around South Georgia

Journal of Fish Biology, EarlyView.
Abstract Patagonian toothfish (Dissostichus eleginoides) are a long‐lived, slow‐growing deep‐sea species endemic to the Southern Hemisphere and the focus of longline fisheries managed to ensure sustainable exploitation. Managing the fisheries relies on accurate stock assessments that include pertinent biological and exploitation processes.
Jessica E. Marsh, Sarah R. Alewijnse, Stephen D. Gregory, Philip R. Hollyman, Marta Söffker   +4 more
wiley   +1 more source

Mercury bioaccumulation and biomagnification in mesopelagic biota

Marine Pollution Bulletin
This study investigated the distribution and biomagnification pathways of total mercury (THg) concentrations in three mesopelagic species in the Tasman Sea: two fish (Diaphus hudsoni, Metelectrona ventralis) and one predatory squid (Lycoteuthis lorigera).
Bowen, Zhang, Heidi, Pethybridge, Yunkai, Li   +2 more
openaire   +2 more sources

Global biogeochemical provinces of the mesopelagic zone

, 2017
Aim: Following the biogeographical approach implemented by Longhurst for the epipelagic layer, we propose here to identify a biogeochemical 3-D partition for the mesopelagic layer.
Henson, Stephanie, Gabriel Reygondeau, Brian R. MacKenzie, Sutton, T. T., Henson, S. A., Guidi, Lionel, Gregory Beaugrand, Reygondeau, Gabriel, Beaugrand, Gregory, Lionel Guidi, Tracey T. Sutton, Guidi, L., Fioroni, M., Philippe Koubbi, Fioroni, Martine, Maury, Olivier, Olivier Maury, Sutton, Tracey T., MacKenzie, Brian, Stephanie A. Henson, Koubbi, Philippe, Mackenzie, Brian R., Koubbi, P., MacKenzie, B. R., Sutton, Tracey, Martine Fioroni, Henson, Stephanie A., Beaugrand, G., Reygondeau, G.   +28 more
core   +1 more source

Controls over Ocean Mesopelagic Interior Carbon Storage (COMICS): fieldwork, synthesis and modelling efforts

Frontiers in Marine Science, 2016
The ocean’s biological carbon pump plays a central role in regulating atmospheric CO2 levels. In particular, the depth at which sinking organic carbon is broken down and respired in the mesopelagic zone is critical, with deeper remineralisation resulting
Richard John Sanders, Stephanie Henson, Adrian Martin, Tom Anderson, Raffaele Bernardello, Peter Enderlein, Sophie Fielding, Sarah L. C Giering, Manuela Hartmann, Morten Iversen, Samar Khatiwala, Phyllis Lam, Richard Lampitt, Daniel Mayor, Mark Moore, Eugene Murphy, Stuart Painter, Alex James Poulton, Kevin Saw, Gabriele Stowasser, Geraint Tarling, Sinhue Torres-Valdes, Mark Trimmer, George Wolff, Andrew Yool, Mike Zubkov   +25 more
doaj   +1 more source

Accounting for Uncertainties in Biodiversity Estimations: A New Methodology and Its Application to the Mesopelagic Sound Scattering Layer of the High Arctic

Frontiers in Ecology and Evolution, 2022
Measures of biological diversity (biodiversity) are important for monitoring the state of ecosystems. Several indices and methods are used to describe biodiversity from field observations.
Bent Herrmann, Bent Herrmann, Bent Herrmann, Kristine Cerbule, Kristine Cerbule, Jure Brčić, Eduardo Grimaldo, Eduardo Grimaldo, Maxime Geoffroy, Maxime Geoffroy, Malin Daase, Jørgen Berge, Jørgen Berge, Jørgen Berge   +13 more
doaj   +1 more source

The Greenland–Scotland Ridge in a Changing Ocean: Time to Act?

Marine Ecology, EarlyView.
ABSTRACT The Greenland–Scotland Ridge is a submarine mountain that rises up to 500 m below the sea surface and extends from the east coast of Greenland to the continental shelf of Iceland and across the Faroe Islands to Scotland. The ridge not only separates deeper ocean basins on either side, that is, the North Atlantic and Arctic oceans, but also ...
Christophe Pampoulie, Saskia Brix, Haseeb S. Randhawa   +2 more
wiley   +1 more source

Stable Isotope Composition of Skin Layers Confirms Trophic Differentiation of Baird's and Sato's Beaked Whales (Berardius spp.) in the Western North Pacific

Rapid Communications in Mass Spectrometry, Volume 40, Issue 17, 15 September 2026.
ABSTRACT Rationale Closely related whale species can appear similar yet occupy distinct ecological niches. Sato's beaked whale (Berardius minimus) was only recently recognized as a separate species and was previously grouped with Baird's beaked whale (Berardius bairdii), limiting our understanding of their ecological differences.
Olga A. Filatova, Ivan D. Fedutin, Igor G. Bobyr, Olga V. Titova, Mikhail O. Ragimov, Erich Hoyt, Sergey M. Tsurikov, Alexei V. Tiunov   +7 more
wiley   +1 more source