Results 161 to 170 of about 991 (193)
Mesoscale features and micronekton in the Mozambique Channel: An acoustic approach
Deep-Sea Research Part II: Topical Studies in Oceanography, 2014 The oceanic circulation in the Mozambique Channel (MZC) is dominated by mesoscale cyclonic and anticyclonic eddies that are known to play a key role in biological processes of less-productive deep-sea ecosystems by converting physical energy into trophic energy and by restructuring and concentrating biomass across the eddy field.
Louis Du Buisson +2 more
exaly +5 more sources
Global characterization of modelled micronekton in biophysically defined provinces
Progress in OceanographyMicronekton are the mid-trophic level of the ecosystem and contribute to active carbon export to the deep ocean through diel vertical migrations. Better characterization of micronekton functional groups depending on relationships to environmental variables is useful for the management of marine resources, the conservation of biodiversity and a better ...
Thomas Gorgues +2 more
exaly +4 more sources
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The influence of a Hawaiian seamount on mesopelagic micronekton
Deep-Sea Research Part I: Oceanographic Research Papers, 2009Abstract The distribution of mesopelagic micronekton (small fishes, crustaceans, and cephalopods) is not uniform throughout the oceans. Seamounts are a feature that may influence the abundance, biomass, diversity, and taxonomic composition of a community of mesopelagic micronekton by introducing a hard substrate and benthic predators into a realm ...
Jeffrey C Dražen
exaly +2 more sources
Acoustic characterisation of micronekton distribution in French Polynesia [PDF]
Marine Ecology - Progress Series, 1999 Tuna distribution may be directly linked to food availability, the density of which can be assessed by echo-sounding. A study was performed in the French Polynesian EEZ (Economic Exclusive Zone) between 1995 and 1997 with a 38 kHz echo sounder working down to 500 m depth.
Arnaud Bertrand +2 more
exaly +3 more sources
Deep-Sea Research Part I: Oceanographic Research Papers, 2018 International audienceSpatial distribution, community composition and trophic roles of micronekton (crustaceans, fishes and squids)were investigated in the Indian South Subtropical Gyre (ISSG) province and the East African Coastal province(EAFR), by ...
Pavanee Annasawmy +2 more
exaly +2 more sources
Monsoon influences on micronekton of the Banda Sea (Indonesia)
Netherlands Journal of Sea Research, 1990Abstract Spatial and seasonal variations in abundance, biomass, composition, horizontal and vertical distribution of mesopelagic fishes and crustaceans of the eastern Banda Sea sampled by a RMT 8 during the southeast monsoon (August 1984) and northwest monsoon (February 1985) are described.
P.H. Schalk +3 more
openaire +1 more source
Micronekton of the North Pacific
20211. INTRODUCTION1.1 Working Group History 2. SPECIES COMPOSITION AND DISTRIBUTION PATTERNS RELATED TO WATER MASSES 2.1 Mesopelagic Fishes 2.1.1 Dominant families2.1.2 Large-scale feeding and/or spawning migration or expatriation?2.1.3 Definition of water masses2.1.4 Species composition 2.2 Crustacean Micronekton 2.2.1 Euphausiids2.2.2 Mysids and ...
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Potential Use of Broadband Acoustic Methods for Micronekton Classification
Acoustics Australia, 2017Broadband acoustic methods are an emerging technology with potential use in identification and classification of marine organisms. The application of broadband methods to scientific surveys of mesopelagic micronektons (animals of 2–20 cm length found at depths of 200–1000 m) is described. The principles of the broadband system are briefly outlined with
Arti Verma +2 more
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New development in the MOCNESS, an apparatus for sampling zooplankton and micronekton
Marine Biology, 1985Four variants of the Multiple Opening/Closing Net and Environmental Sensing System (MOCNESS) have been constructed to sample a broad size spectrum of oceanic animals from microzooplankton to micronekton. The systems differ in mouth opening dimensions (ranging from 1/4 to 20 m2), the number of nets carried (from 5 to 20), and the mesh size of the ...
P. H. Wiebe +7 more
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Acoustic estimates of zooplankton and micronekton biomass using an ADCP
The Journal of the Acoustical Society of America, 1998A calibrated 153-kHz narrow-band ADCP (Acoustic Doppler Current Profiler) has been used to collect acoustic backscatter intensity (Sv) data during several cruises in the Gulf of Mexico. Data have been gathered both while on station and while underway along transects through different hydrographic regimes, enabling an examination of both temporal and ...
Patrick H. Ressler +2 more
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