Results 61 to 70 of about 3,825 (220)

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

Range extension and first records of Coryphaenoides striaturus Barnard, 1925 and Coryphaenoides subserrulatus Makushok, 1976 (Macrouridae: Gadiformes) in Brazilian waters, Southwest Atlantic, using integrative taxonomy

Journal of Fish Biology, EarlyView.
Abstract Coryphaenoides Gunnerus, 1765 comprises 66 valid species of deep‐sea fishes commonly known as grenadiers, with 6 previously reported from Brazilian waters. Here, we make the first records for Coryphaenoides striaturus and Coryphaenoides subserrulatus on the Brazilian continental slope. Both species are distributed in the subtropical regions of
Marcelo Roberto Souto de Melo, Flávia Tiemi Masumoto, Heloisa De Cia Caixeta, Marcos Roberto dos Reis Júnior, Claudio Oliveira   +4 more
wiley   +1 more source

40Ar/39Ar dating reveals over 30 million years of plume-ridge interaction formed the Rio Grande Rise

Communications Earth & Environment
The Rio Grande Rise (RGR) oceanic plateau exhibits distinctly broad morphology compared to the linear, age-progressive Walvis Ridge (WR), despite both originating from the Tristan-Gough (T-G) plume.
Peter C. Davidson, Anthony A. P. Koppers, Cornelia Class, William W. Sager, Daniel Heaton   +4 more
doaj   +1 more source

Understanding marine biodiversity patterns and drivers: The fall of Icarus

Marine Ecology, EarlyView.
Abstract Biodiversity patterns are fundamental in our understanding of the distribution of life, ecosystem function, and conservation. In this concept analysis, A survey of the existing knowledge on marine biodiversity patterns and drivers across latitudes, longitudes, and depths indicates that none of the postulated patterns represent a rule.
Roberto Danovaro
wiley   +1 more source

Morphology and phylogeny of two new species of deep-sea mushroom soft corals (Octocorallia, Corallidae, Anthomastinae) from the Southern Mid-Atlantic Ridge [PDF]

Zoosystematics and Evolution
Members of the subfamily Anthomastinae Verrill, 1922, commonly known as mushroom soft corals, are characterized by their capitate or mushroom-shaped red colonies and large autozooids. Deep-sea mushroom corals of this subfamily remain poorly documented in
Xinlong Li, Ningxia Xu, Meiling Ge, Xuying Hu, Mengna Li, Zongling Wang, Xuelei Zhang, Qinzeng Xu   +7 more
doaj   +3 more sources

Specialized Committees of International Organizations an Important Source of Organizational Autonomy

Regulation &Governance, EarlyView.
ABSTRACT Assigning the preparation of decisions to specialized committees composed of member state representatives is a widespread response to the ‘governor's dilemma’, that is, the tension between competence and control, in international organizations (IOs). We theorize a causal mechanism referring to self‐selection and agenda‐setting effects and show
Michael Giesen, Thomas Gehring, Simon Linder, Thomas Rixen   +3 more
wiley   +1 more source

First record of Eurythenes thurstoni Stoddart & Lowry, 2004 (Crustacea: Amphipoda: Lysianassoidea) from the South Mid-Atlantic Ridge

Latin American Journal of Aquatic Research, 2014
The lysianassoid species Eurythenes thurstoni Stoddart & Lowry, 2004 is recorded for the first time to the Southern Atlantic Ocean, with material collected from the South Mid-Atlantic Ridge during the MAR-ECO Project expeditions.
Adriana Quadra, Rayane Sorrentino, André R Senna, Cristiana S Serejo   +3 more
doaj  

Evaluating the possible role of bottom currents and internal waves in shaping seafloor morphology in a mesophotic reef

Sedimentology, EarlyView.
ABSTRACT Mesophotic reefs are located in low light conditions which, depending on the region, are usually found in water depths greater than ~30 m. They are less affected by ocean warming than reefs found in shallower water depths and thus might become increasingly important for the sustainability of marine biodiversity.
Or M. Bialik, Henriette Wilckens, Omri Gadol, Aaron Micallef, Christian Betzler, Ole Johannes R. Sørensen, Hagai Nativ, Yizhaq Makovsky   +7 more
wiley   +1 more source

Submarine Topography and Several Bottom Sediments around Prince Olav and Prince Harald Coasts, Antarctica

Antarctic Record, 1964
The deep sea floor between Africa and Antarctica is divided into two provinces by the continuation of Mid-Atlantic Ridge. The bottom sediments on the continental slope around Prince Olav Coast and Amundsen Bay are hemipelagic clays which are rich in ...
Takahiro SATO
doaj   +1 more source

Variations in downslope activity and bottom current dynamics in a land‐detached submarine channel system since the Last Glacial Maximum

Sedimentology, EarlyView.
ABSTRACT The Gollum Channel System is a land‐detached large‐scale canyon‐channel system situated offshore southwest Ireland on the Northeast Atlantic margin. The system has been considered inactive with downslope gravity flows since the last glacial period, but geophysical data in some of its branches do suggest Holocene activity.
Lotte Verweirder, Aggeliki Georgiopoulou, Kobus Langedock, Fred Fourie, Martin White, Sara Benetti, Fabio Sacchetti, Wieter Boone, David Van Rooij   +8 more
wiley   +1 more source