Results 51 to 60 of about 18,322 (241)

Length-weight relationships of 55 mesopelagic fishes from the eastern tropical North Atlantic: across- and within-species variation (body shape, growth stanza, condition factor).

Journal of Fish Biology, 2022
We present estimates of length-weight relationships (LWRs) of 55 mesopelagic fish species of 13 taxonomic families based on data collected in the eastern tropical North Atlantic (ETNA) in March/April 2015.
S. Czudaj, C. Möllmann, H. Fock
semanticscholar   +1 more source

Trophic Structure and Sources of Variation Influencing the Stable Isotope Signatures of Meso- and Bathypelagic Micronekton Fishes

Frontiers in Marine Science, 2020
To better understand spatiotemporal variation in the trophic structure of deep-pelagic species, we examined the isotope values of particulate organic matter (POM) (isotopic baseline) and seven deep-pelagic fishes with similar diet compositions but ...
Travis M. Richards, Tracey T. Sutton, R. J. David Wells, R. J. David Wells   +3 more
doaj   +1 more source

Exploring the Use of Environmental DNA (eDNA) to Detect Animal Taxa in the Mesopelagic Zone

Frontiers in Ecology and Evolution, 2021
Animal biodiversity in the ocean’s vast mesopelagic zone is relatively poorly studied due to technological and logistical challenges. Environmental DNA (eDNA) analyses show great promise for efficiently characterizing biodiversity and could provide new ...
Annette F. Govindarajan, R. Francolini, J. Jech, A. Lavery, J. Llopiz, P. Wiebe, W. Zhang   +6 more
semanticscholar   +1 more source

Novel insights into the Thaumarchaeota in the deepest oceans: their metabolism and potential adaptation mechanisms [PDF]

, 2020
Background: Marine Group I (MGI) Thaumarchaeota, which play key roles in the global biogeochemical cycling of nitrogen and carbon (ammonia oxidizers), thrive in the aphotic deep sea with massive populations.
Lehtovirta-Morley, Laura, Lin, Heyu, Liu, Jiwen, Song, Delei, Tian, Jiwei, Todd, Jonathan, Zhang, Xiao-Hua, Zheng, Yanfen, Zhong, Haohui   +8 more
core   +2 more sources

Acoustic behavior of melon-headed whales varies on a diel cycle. [PDF]

, 2015
Many terrestrial and marine species have a diel activity pattern, and their acoustic signaling follows their current behavioral state. Whistles and echolocation clicks on long-term recordings produced by melon-headed whales (Peponocephala electra) at ...
Baumann-Pickering, Simone, Hildebrand, John A, Roch, Marie A, Schnitzler, Hans-Ulrich, Wiggins, Sean M   +4 more
core   +2 more sources

The economic tradeoffs and ecological impacts associated with a potential mesopelagic fishery in the California Current

Ecological Applications, 2022
The ocean's mesopelagic zone (200–1000 m) remains one of the most understudied parts of the ocean despite knowledge that mesopelagic fishes are highly abundant.
Sally C Dowd, Melissa S. Chapman, Laura E. Koehn, P. Hoagland   +3 more
semanticscholar   +1 more source

Rich and underreported: First integrated assessment of the diversity of mesopelagic fishes in the Southwestern Tropical Atlantic

Frontiers in Marine Science, 2022
Mesopelagic fishes play critical ecological roles by sequestering carbon, recycling nutrients, and acting as a key trophic link between primary consumers and higher trophic levels.
L. Eduardo, A. Bertrand, F. Lucena‐Frédou, B. T. Villarins, J. Martins, G. V. F. Afonso, Theodore W. Pietsch, T. Frédou, F. Di Dario, M. M. Mincarone   +9 more
semanticscholar   +1 more source

Integrating Archival Tag Data and a High-Resolution Oceanographic Model to Estimate Basking Shark (Cetorhinus maximus) Movements in the Western Atlantic

Frontiers in Marine Science, 2018
Basking shark (Cetorhinus maximus) populations are considered “vulnerable” globally and “endangered” in the northeast Atlantic by the International Union for the Conservation of Nature (IUCN).
Camrin D. Braun, Camrin D. Braun, Gregory B. Skomal, Simon R. Thorrold   +3 more
doaj   +1 more source

Growth and reproduction in mesopelagic fishes: a literature synthesis

ICES Journal of Marine Science, 2021
The mesopelagic zone covers a vast expanse of the World’s oceans and contains some of the most abundant vertebrates on the planet. This midwater region is central to the transfer of energy and carbon between the atmosphere and the deep, yet there are ...
P. Caiger, Lyndsey S Lefebve, J. Llopiz
semanticscholar   +1 more source

Herding mesopelagic fish by light [PDF]

Marine Ecology Progress Series, 2019
To assess organisms forming mesopelagic scattering layers in the Red Sea, we took advantage of their reactions to light. We used a remotely operated vehicle (ROV) equipped with LED lamps for herding the acoustic targets down to the bottom (700 m), while concurrently monitoring the event by shipborne and deployed echosounders as well as video footage ...
Kaartvedt, Stein, Røstad, Anders, Opdal, Anders Frugård, Aksnes, Dag Lorents   +3 more
openaire   +3 more sources