Results 61 to 70 of about 2,287 (214)

Hydromedusae (Cnidaria) of the Chilean southern channels (from the Corcovado Gulf to the Pulluche-Chacabuco Channels)

Scientia Marina, 2007
Hydromedusae collected in epipelagic waters of the channels in southern Chile, between the Corcovado Gulf and the Pulluche-Chacabuco channels, were analysed. A total of 23 species were identified and recorded for the first time in this region.
Sergio Palma, Pedro Apablaza, Nelson Silva   +2 more
doaj   +1 more source

Seasonal Changes of Size Spectra of the Benguela Offshore Mesopelagic Ecosystem Compartment in Relation to Primary Production

Marine Ecology, Volume 46, Issue 4, July/August 2025.
ABSTRACT Seasonal differences in marine size spectra of micronekton at the shelf‐ocean interface of the northern (NBUS) and southern Benguela upwelling system (SBUS) in Feb–Mar 2019 and Sep–Oct 2021 were analysed for mesopelagic fishes and total micronekton, the latter also including invertebrates.
Heino O. Fock, Henrike Andresen, Javier Díaz Pérez, Tim Dudeck, Gabriela Figueiredo, Thierry Frédou, Dawit Y. Ghebrehiwet, Cristina González‐García, José M. Landeira, Simone Lira, Emilio Marañón, Leandro Nole Eduardo, Ralf Schwamborn   +12 more
wiley   +1 more source

HYDROMEDUSAE

, 1953
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +1 more source

A comparative study of populations of Ectopleura crocea and Ectopleura ralphi (Hydrozoa, Tubulariidae) from the Southwestern Atlantic Ocean [PDF]

, 2014
Ectopleura crocea (L. Agassiz, 1862) and Ectopleura ralphi (Bale, 1884) are two of the nominal tubulariid species re-corded for the Southwestern Atlantic Ocean (SWAO), presumably with wide but disjunct geographical ranges and similar morphologies.
Ale, Ezequiel, Antunes Imazu, Mauricio, Genzano, Gabriel Nestor   +2 more
core   +1 more source

Metazoan Diversity and Its Drivers: An eDNA Survey in the Pacific Gateway of a Changing Arctic Ocean

Environmental DNA, Volume 7, Issue 2, March/April 2025.
In the face of climate change, organisms must adapt or shift their ranges to survive. Our study conducted the first COI marker‐based eDNA survey in the Pacific Gateway of the Arctic Ocean, analyzing seawater samples from the Bering Strait and Chukchi Sea.
Gerlien Verhaegen, Tatsuya Kawakami, Ayla Murray, Akihide Kasai, Charlotte Havermans   +4 more
wiley   +1 more source

Comparing Vertical Distributions of Chl-a Fluorescence, Marine Snow, and Taxon-Specific Zooplankton in Relation to Density Using High-Resolution Optical Measurements

Frontiers in Marine Science, 2020
Interactions between predators and their prey are important in shaping planktonic ecosystems. However, these interactions are difficult to assess in situ at the spatial scales relevant to the organisms.
Christian Briseño-Avena, Christian Briseño-Avena, Jennifer C. Prairie, Peter J. S. Franks, Jules S. Jaffe   +4 more
doaj   +1 more source

Modular shadowgraph imaging for zooplankton ecological studies in diverse field and mesocosm settings

Limnology and Oceanography: Methods, Volume 23, Issue 1, Page 67-86, January 2025.
Abstract Various iterations of shadowgraph imaging have been used to quantify zooplankton in situ with high spatial resolution. Because these systems can image relatively large volumes of water, they are especially useful for resolving less common meso‐ or macrozooplankton taxa (< 50 ind. m−3), such as larval fishes and gelatinous animals.
Adam T. Greer, Patrick I. Duffy, Tim J. W. Walles, Charles Cousin, Laura M. Treible, Kyle D. Aaron, Jens C. Nejstgaard   +6 more
wiley   +1 more source

Fluorescence patterns and diversity of hydrozoans from Bocas del Toro, Panama

Ciencias Marinas
Many metazoans contain molecules capable of fluorescence, the absorption and re-emission of light. Since the anatomical distribution, or patterning, of these molecules is variable across taxa, patterns of fluorescence may serve as a powerful diagnostic ...
Lara M Beckmann, Bridget A Vincent, Alexandra De León, Jessica Masterman, Emily S Lau, Steven HD Haddock   +5 more
doaj   +1 more source

Biodiversity and spatial distribution of medusae in the Magellan Region (Southern Patagonian Zone)

Latin American Journal of Aquatic Research, 2014
Epipelagic medusae collected in the Magellan Region (Southern Patagonian Zone) during spring 2009 were analyzed. A total of 27 species of medusae were identified (25 hydromedusae and 2 scyphomedusae).
Sergio Palma, Pablo Córdova, Nelson Silva, Claudio Silva   +3 more
doaj   +1 more source

Food habits and dietary variability of pelagic nekton off Oregon and Washington, 1979-1984 [PDF]

, 1987
The food habits of 20 species of pelagic nekton were investigated from collections made with small-mesh purse seines from 1979-84 off Washington and Oregon. Four species (spiny dogfish, Squalus acanthias; soupfin shark, Galeorhinus zyopterus; blue shark,
Brodeur, Richard D., Lorz, Harriet V., Pearcy, William G.   +2 more
core