Results 81 to 90 of about 113,704 (248)

Giants in the cold: Morphological evidence for vascular heat retention in the viscera but not the skeletal muscle of the basking shark (Cetorhinus maximus)

Journal of Fish Biology, EarlyView.
Abstract Fewer than 50 of the over 30,000 extant species of fishes have developed anatomical specializations facilitating endothermy in specific body regions. The plankton‐feeding basking shark (Cetorhinus maximus), traditionally classified as an ectotherm, was recently shown to have regionally endothermic traits such as centralized red muscle (RM ...
C. Antonia Klöcker, Axel Schlindwein, Martin C. Arostegui, Ingrid M. Bruvold, Joel V. Wernström, Montserrat Martin‐Armas, David W. Sims, Nicolas Straube, Andreas Altenburger, Claudia Junge   +9 more
wiley   +1 more source

North Atlantic Western Boundary Currents Are Intense Dissolved Organic Carbon Streams

Frontiers in Marine Science, 2020
In the North Atlantic, there are two main western boundary currents related to the Atlantic Meridional Overturning Circulation (AMOC): the Gulf Stream flowing northward and the Deep Western Boundary Current (DWBC) flowing southward.
Marcos Fontela, Marcos Fontela, Fiz F. Pérez, Herlé Mercier, Pascale Lherminier   +4 more
doaj   +1 more source

Path of the North Atlantic Deep Water in the Brazil Basin [PDF]

, 1998
Recent hydrographic sections and high-quality historical data sets are used to determine geostrophic currents at subtropical latitudes in the western basin of the South Atlantic.
Be Madron, Boebel, Brennecke, Broecker, Broecker, Brügge, Friedrichs, Fu, Gerold Siedler, Gordon, Hogg, Houry, Kuo, McCartncy, McCartney, Müller, Norbert Zangenberg, Pedlosky, Peterson, Peterson, Pätzold, Reid, Reid, Rhein, Rintoul, Schmid, Siedler, Speer, Stommel, Stommel, Stommel, Tsuchiya, Warren, Warren, Wüst, Wüst   +35 more
core   +1 more source

230 Th normalization: new insights on an essential tool for quantifying sedimentary fluxes in the modern and quaternary ocean [PDF]

, 2020
© The Author(s), 2020. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Costa, K. M., Hayes, C. T., Anderson, R. F., Pavia, F. J., Bausch, A., Deng, F., Dutay, J., Geibert, W.
Anderson, Robert F., Bausch, Alexandra, Costa, Kassandra M., Deng, Feifei, Dutay, Jean-Claude, Geibert, Walter, Hayes, Christopher T., Heinze, Christoph, Henderson, Gideon M., Hillaire‐Marcel, Claude, Hoffmann, Sharon S., Jaccard, Samuel L., Jacobel, Allison W., Kienast, Stephanie S., Kipp, Lauren, Lerner, Paul, Lippold, Jörg, Lund, David C., Marcantonio, Franco, McGee, David, McManus, Jerry F., Mekik, Figen, Middleton, Jennifer L., Missiaen, Lise, Not, Christelle, Pavia, Frank, Pichat, Sylvain, Robinson, Laura F., Rowland, George H., Roy-Barman, Matthieu, Tagliabue, Alessandro, Torfstein, Adi, Winckler, Gisela, Zhou, Yuxin   +33 more
core   +9 more sources

Integrative taxonomy reveals four new species of the armoured catfish genus Pareiorhina (Siluriformes: Loricariidae) from the upper Paraná River basin, Brazil

Journal of Fish Biology, EarlyView.
Abstract Four new species of the small‐sized armoured catfish genus Pareiorhina are described from mountain ranges in the Grande River drainage, upper Paraná River basin, based on morphological and molecular species delimitation methods. Molecular analyses based on the cytochrome oxidase subunit I (COI) marker recovered Pareiorhina as polyphyletic ...
Pedro L. C. Uzeda, Luana J. Sartori, Axel M. Katz, Felipe P. Ottoni, Wilson J. E. M. Costa, Francisco Langeani, Valter M. Azevedo‐Santos   +6 more
wiley   +1 more source

Heterogeneity in mantle carbon content from CO2-undersaturated basalts

Nature Communications, 2017
Melting dynamics are affected by the amount of carbon in the Earth’s mantle. Le Voyeret al. report undegassed carbon concentrations from olivine-hosted melt inclusions from the Mid-Atlantic Ridge finding that carbon content varies by two orders of ...
M. Le Voyer, K.A. Kelley, E. Cottrell, E.H. Hauri   +3 more
doaj   +1 more source

Redefinition of Stemonosudis intermedia (Ege, 1933) and description of a new species from the western Atlantic Ocean (Aulopiformes: Paralepididae)

Journal of Fish Biology, EarlyView.
Abstract We examined specimens of slender barracudina in the genus Stemonosudis collected from the western Atlantic Ocean. Investigation revealed that seven specimens represent the first adult records of Stemonosudis intermedia (Ege, 1933), previously known only from juveniles. We redescribed S.
Hsuan‐Ching Ho, Katherine E. Bemis
wiley   +1 more source

Copepod distribution and production in a Mid-Atlantic Ridge archipelago

Anais da Academia Brasileira de Ciências, 2014
The Saint Peter and Saint Paul Archipelago (SPSPA) are located close to the Equator in the Atlantic Ocean. The aim of this study was to assess the spatial variations in the copepod community abundance, and the biomass and production patterns of the three
PEDRO A.M.C. MELO, MAURO DE MELO JÚNIOR, SILVIO J. DE MACÊDO, MOACYR ARAUJO, SIGRID NEUMANN-LEITÃO   +4 more
doaj   +1 more source

Water, oceanic fracture zones and the lubrication of subducting plate boundaries - insights from seismicity [PDF]

, 2015
We investigate the relationship between subduction processes and related seismicity for the Lesser Antilles Arc using the Gutenberg-Richter law. This power lawdescribes the earthquakemagnitude distribution, with the gradient of the cumulative magnitude ...
Baptie, B, Blundy, J, Bouin, MP, Collier, JS, Kendall, JM, Latchman, JL, Massin, F, Schlaphorst, D, Verdon, JP   +8 more
core   +1 more source

Unravelling the skin of the nurse shark: A morphological description of the placoid scales of Ginglymostoma cirratum

Journal of Fish Biology, EarlyView.
Abstract Ginglymostoma cirratum, commonly known as the nurse shark, is a nocturnally active benthic shark, often found in western and eastern Atlantic waters. Although this shark has been well explored in many biological aspects, few studies have thoroughly examined the morphology of its dermal denticles (or placoid scales).
Danilo P. Lima, Aline. N. Poscai, Laura F. Mianutti, Nathalie. M. R. de Abreu, Jade Medeiros, Marcus V. G. Araújo, Frederico. B. de Sousa, João Paulo C. B. da Silva   +7 more
wiley   +1 more source