Results 71 to 80 of about 113,650 (200)

1165. Echinacea purpurea (L.) Moench

Curtis's Botanical Magazine, EarlyView.
Summary Echinacea purpurea (L.) Moench (Compositae: Heliantheae: Zinniinae) is described and illustrated with a colour plate and black and white text figure. An introduction to the history of the appearance of this species in the Magazine appears in brief, together with comments on the treatment of the genus, and the available generic revisions.
Nicholas Hind, Masumi Yamanaka, Naoko Yasue   +2 more
wiley   +1 more source

South Atlantic Transect: Variations in Oceanic Crustal Structure at 31°S

Geochemistry, Geophysics, Geosystems, 2020
We present an analysis of geophysical data acquired along a transect of 0–62 Ma crust located on the western flank of the Mid‐Atlantic Ridge at 31°S; all crust was formed at the same ridge segment.
G. L. Christeson, R. S. Reece, D. A. Kardell, J. D. Estep, A. Fedotova, J. A. Goff   +5 more
doaj   +1 more source

A strategy for the conservation of biodiversity on mid-ocean ridges from deep-sea mining [PDF]

, 2018
Mineral exploitation has spread from land to shallow coastal waters and is now planned for the offshore, deep seabed. Large seafloor areas are being approved for exploration for seafloor mineral deposits, creating an urgent need for regional ...
Colaço, Ana, Dale, Andrew C., Dunn, Daniel C., Etter, Ron J., Gebruk, Andrey V., Gjerde, Kristina M., Halpin, Patrick N., Howell, Kerry L., Johnson, David, Levin, Lisa A., Morato, Telmo, Perez, José Angel A., Ribeiro, Marta Chantal, SEMPIA Workshop Participants, Smith, Craig R., Stuckas, Heiko, Van Dover, Cindy L., Weaver, Philip   +17 more
core   +3 more sources

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

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

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

The present and future system for measuring the Atlantic meridional overturning circulation and heat transport [PDF]

, 2010
of the global combined atmosphere-ocean heat flux and so is important for the mean climate of the Atlantic sector of the Northern Hemisphere. This meridional heat flux is accomplished by both the Atlantic Meridional Overturning Circulation (AMOC) and
Baehr, J., Baringer, M., Cunningham, S., Fischer, Jürgen, Garzoli, S., Johns, B., Kanzow, Torsten, Lherminier, P., Lozier, S., Marotzke, J., McDonagah, E., Meinen, C., Osterhaus, S., Piola, A., Rhein, M., Rintoul, S., Send, Uwe, Sloyan, B., Speich, S., Talley, L., Toole, J., Treguier, A.-M.   +21 more
core   +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