Results 61 to 70 of about 5,656 (156)

Global Variation in Zooplankton Niche Divergence Across Ocean Basins

Ecology Letters, Volume 28, Issue 2, February 2025.
We explored the evidence of niche divergence between population for marine zooplankton globally. We found 44% of all population comparisons show niche divergence. Niche divergence varied across temperature and bathymetry gradients for copepods. ABSTRACT Modelling responses to climate change assumes zooplankton populations remain similar over time with ...
Niall McGinty, Andrew Irwin
wiley   +1 more source

Seasonal and vertical distribution of medusae in Aysén region, southern Chile Distribución estacional y vertical de medusas en la región de Aysén, sur de Chile

Latin American Journal of Aquatic Research, 2011
Medusae collected in winter and spring 2007 were analyzed in a longitudinal transect made between the Boca de Guafo and Elefantes Fjord, southern Chile.
Viviana Bravo, Sergio Palma, Nelson Silva   +2 more
doaj  

Deepwater Sharks at Their Northern Limits—Distribution, Diet and Trophic Relations

Marine Ecology, Volume 46, Issue 1, January 2025.
ABSTRACT Deepwater areas and continental slope regions south and west off Iceland are characterized by a relatively high species diversity and abundance of sharks that likely play a critical ecological role within this ecosystem. The study investigates trophic ecology of the sharks employing stomach content analysis and stable isotope analysis of ...
Jón Sólmundsson, Klara B. Jakobsdóttir, Hildur Pétursdóttir   +2 more
wiley   +1 more source

Hydrozoa e Scyphozoa existentes no Instituto Oceanográfico II [PDF]

Boletim do Instituto Oceanográfico, 1954
In this paper are given distributional records of species already known to frequent brazilian waters. Full description and figures are given of speoies not hitherto known from this coast. Of the mentioned 2O speoies of hydroids, 5 are new for brazilian waters (Eudendrium carneun, E.capillare.
openaire   +3 more sources

Carbon and Nitrogen Stable Isotopes Evidence High Trophic Segregation Within a Meso‐ to Bathypelagic Micronektonic Invertebrate Community From Canyons in the North‐East Atlantic

Marine Ecology, Volume 46, Issue 1, January 2025.
ABSTRACT In deep‐pelagic ecosystems, the trophic ecology of micronektonic species (such as fish, jellyfish, krill, shrimps, and cephalopods) is largely overlooked, with most research focusing almost exclusively on fish. However, like fish, invertebrate organisms play key roles in food webs, both as consumers and as predators.
Liz Loutrage, Jérôme Spitz, Anik Brind'Amour, Tiphaine Chouvelon   +3 more
wiley   +1 more source

Catostylus tagi: partial rDNA sequencing and characterisation of nematocyte structures using two improvements in jellyfish sample preparation

Journal of Venomous Animals and Toxins including Tropical Diseases, 2015
Background More than 200 Scyphozoa species have been described, but few have been properly studied regarding their chemical and genetic characteristics.Catostylus tagi, an edible Scyphozoa and the sole European Catostylidae, occurs in summer at Tagus and
Tiago Parracho, Zilda Morais
doaj   +1 more source

Roaming the Seas—Assessing Marine Invertebrate Biodiversity Along Salinity Gradients With Zooplankton and eDNA Metabarcoding

Environmental DNA, Volume 6, Issue 6, November–December 2024.
We assessed eDNA metabarcoding from surface water, bottom water, and sediment as well as zooplankton metabarcoding for their applicability to identify the known decline in invertebrate diversity along salinity gradients. All approaches identified regional communities, but with varying explanatory power, with none of these methods being able to ...
Alica Ohnesorge, Uwe John, Lucie Kuczynski, Stefan Neuhaus, Kingsly Chuo Beng, Bernd Krock, Silke Laakmann   +6 more
wiley   +1 more source

Carboniferous conulariids (Cnidaria: Scyphozoa) from Ukraine

Spanish Journal of Palaeontology
An assemblage of Carboniferous conulariids (Cnidaria) from Ukraine, consisting of Paraconularia inaequicostata (de Koninck, 1883) s.l., P. irregularis (de Koninck, 1843), P. kohli Brew & Beus, 1976, P. quadrisulcata (Sowerby, 1821), P. lata n. sp., P. cf. crustula (White, 1880), ?P. cf. subulata (Hall, 1858), ?Holoconularia rossica Van Iten et al.,
Viktor V. Ohar, Vitaly S. Dernov
openaire   +1 more source

Swimming ability of the Carybdea marsupialis (Cnidaria: Cubozoa: Carybdeidae): implications for its spatial distribution

Journal of Zoology, Volume 324, Issue 1, Page 1-10, September 2024.
In this paper we analyzed the swimming speed, effective velocity, effective displacement index (EDI) and proficiency of juvenile to adult specimens (ranging from 1.1 to 36 mm of the diagonal bell width) of the box jellyfish Carybdea marsupialis. Abstract Although usually considered part of the plankton, cubozoans are strong swimmers.
C. Bordehore, S. Manchado‐Pérez, E. S. Fonfría   +2 more
wiley   +1 more source

Blue angels have devil hands: Predatory behavior using cerata in Glaucus atlanticus

Ecology, Volume 106, Issue 3, March 2025.
Gaku Yamamoto, Naoki Kanai, Toru Miura, Kohei Oguchi   +3 more
wiley   +1 more source