Results 41 to 50 of about 1,689 (224)

Chromosome Diversity in Mediterranean and Antarctic Euphausiid Species (Euphausiacea) [PDF]

Journal of Crustacean Biology, 1998
Chromosome number and morphology were studied in gonadal tissue from eight euphausiid species, using an air-drying technique and Giemsa staining. Among Mediterranean species, haploid chromosome numbers were: n = 19 in Euphausia hemigibba, Euphausia brevis, and Nematoscelis megalops, n = 18 in Euphausia krohni, and n = 11 in Nyctiphanes couchi.
Thiriot-Quievreux, C, Leitao, A, Cuzin-Roudy, J   +2 more
openaire   +2 more sources

Sticholonche zanclea (Protozoa, Actinopoda) in fecal pellets of copepods and Euphausia sp. in Brazilian coastal waters

Brazilian Journal of Biology
Fecal pellets produced by mesozooplanktonic copepods (Centropages velificatus and Paracalanus parvus) and macrozooplanktonic Euphausiacea (Euphausia sp.) were examined using scanning electron microscopy.
E. M. Eskinazi-Sant'Anna
doaj   +1 more source

The habitat niche breadth in a zooplanktivorous High Arctic seabird as an indicator of ocean-related pressures [PDF]

Royal Society Open Science
Seabirds adjust their foraging behaviour to cope with changing environmental conditions by changing prey choice, foraging locations and trip characteristics. We studied the foraging ecology of zooplanktivorous little auks (Alle alle) during chick-rearing
Pauline Bodson, Kaja Bałazy, Katarzyna Błachowiak-Samołyk, Rafał Boehnke, Lech Marek Iliszko, Kristin Piening, Lech Stempniewicz, Martyna Syposz, Emilia Trudnowska, Katarzyna Wojczulanis-Jakubas, Dariusz Jakubas   +10 more
doaj   +1 more source

Shedding light on the parasite communities and diet of the deep‐sea shark Deania profundorum (Smith & Radcliffe, 1912) (Squaliform: Centrophoridae) from the Avilés Canyon (southern Bay of Biscay)

Journal of Fish Biology, Volume 108, Issue 4, Page 1150-1169, April 2026.
Abstract Deep‐sea elasmobranchs are less resilient to the increasing scale of anthropogenic impacts such as fisheries, owing to their life‐history traits. The necessity for proper management measures is hampered by the scant knowledge on these taxa and their biology. Here we provide the first comprehensive insight into the parasite infracommunities and
Wolf Isbert, Cristina Rodríguez‐Cabello, Francisco E. Montero, Maite Carrassón, Inmaculada Frutos, Ana Pérez‐del‐Olmo   +5 more
wiley   +1 more source

Distribuição de euphausiacea (Crustacea) (krill) no Arquipélago de São Pedro e São Paulo [PDF]

, 2012
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Biológicas, Programa de Pós-Graduação em Ecologia, Florianópolis, 2012Eufausiáceos podem ter sua distribuição afetada por diversos fatores, como a temperatura, massas d ...
Menezes, Barbara Santos
core  

Zooplankton in the temperate ocean display strong ties to pico‐plankton and seasonally variable trophic roles

Limnology and Oceanography, Volume 71, Issue 3, March 2026.
Abstract Trophic connections between the food web base and zooplankton affect the structure of marine food webs and fluxes to higher predators. The food that zooplankton consume shifts in response to prey resources, but specific zooplankton trophic sources remain unresolved over the dynamic seasonal cycle for many species.
Anna K. McLaskey, Ian Forster, Brian P.V. Hunt   +2 more
wiley   +1 more source

Variação espacial de euphausiacea (crustacea) ("krill") no arquipélago de São Pedro e São Paulo: verão de 2004 [PDF]

, 2007
Trabalho de Conclusão de Curso (graduação em Engenharia de Aquicultura ) - Centro de Ciências Agrárias, Universidade Federal de Santa Catarina, Florianópolis, 2007.Os eufausiáceos representam um dos grupos dominantes do zooplâncton marinho ...
Brandão, Manoela Costa
core  

Varying depth and swarm dimensions of open-ocean Antarctic krill Euphausia superba Dana, 1850 (Euphausiacea) over diel cycles

Journal of Crustacean Biology, 2018
Diel vertical migration (DVM) behaviour in swarms of Antarctic krill (Euphausia superba Dana, 1850) is notoriously variable, with swarms being found at a range of depths and in different shapes, sizes, and packing concentrations throughout the day-night ...
G. Tarling, S. Thorpe, Sophie Fielding, T. Klevjer, A. Ryabov, P. Somerfield   +5 more
semanticscholar   +1 more source

State of plankton community in the Kuril waters under recent renewal of mass feeding northward migrations of subtropical fish

Известия ТИНРО, 2017
State of plankton community was monitored in the Pacific waters at Kuril Islands in July-August 2016, in conditions of mass feeding migrations of subtropical fish.
Natalya A. Kuznetsova, Marina A. Shebanova   +1 more
doaj   +1 more source

Acoustic Observations Unveil Seasonal Fluctuations and Regulation of Zooplankton Biomass and Its Vertical Distribution at a Mid‐Latitude Long‐Term Ocean Observatory

Journal of Geophysical Research: Oceans, Volume 131, Issue 1, January 2026.
Abstract Zooplanktonic organisms are considered a key link between different trophic levels. The ecosystem structure and dynamics are affected by changes in their population and phenology. In this work, the causes and timing of changes within the seasonal cycle of zooplankton biomass vertical distribution in oceanic waters of the Bay of Biscay were ...
L. Ibáñez‐Tejero, R. Somavilla, L. Valdés, E. Marcos, A. Viloria, A. Lavín   +5 more
wiley   +1 more source