Results 31 to 40 of about 10,883 (164)

Uncovering the Composition and Diversity of Pelagic Copepods in the Oligotrophic Blue Water of the South Pacific Subtropical Gyre

open access: yesFrontiers in Marine Science, 2021
The subtropical gyres occupy approximately 40% of the surface of the Earth and are widely recognized as oligotrophic zones. Among them, the South Pacific subtropical gyre (SPSG) shows the lowest chlorophyll-a levels (0.02–0.04 μgL–1), the deepest ...
Johanna Medellín-Mora   +5 more
doaj   +1 more source

Microcrustacean assemblages composition and environmental variables in lakes and ponds of the Andean region - South of Chile (37-39° S) Composição de comunidades de microcustáceos e variáveis ambientais em lagos e lagoas da região andina - sul do Chile (37-39° S)

open access: yesBrazilian Journal of Biology, 2011
The zooplankton assemblages in Chilean Patagonian lakes are characterised mainly by their low biodiversity and high predominance of calanoids copepods, a pattern that has been studied for large and deep lakes between 38-51° S, and shallow ponds at 51° S.
P. De los Ríos-Escalante   +2 more
doaj   +1 more source

The influence of environmental stability and upwelling variation on copepod diversity in the Humboldt Current System off Chile

open access: yesFrontiers in Ecology and Evolution
The Humboldt Current System (HCS) is a highly dynamic upwelling system implying a strongly variable environment for zooplankton inhabiting the coastal zone.
Manuela Pérez-Aragón   +7 more
doaj   +1 more source

Choreographed swimming of copepod nauplii [PDF]

open access: yesJournal of The Royal Society Interface, 2015
Small metazoan paddlers, such as crustacean larvae (nauplii), are abundant, ecologically important and active swimmers, which depend on exploiting viscous forces for locomotion. The physics of micropaddling at low Reynolds number was investigated using a model of swimming based on slender-body theory for Stokes flow.
Petra H. Lenz   +2 more
openaire   +2 more sources

Monsoon effects on the copepod community structure in the Chabahar Bay, Oman Sea

open access: yesInternational Journal of Aquatic Biology, 2015
Calanoid, cyclopoid, harpacticoid and poecilostomatoid copepods were investigated over the year at five stations in the Chabahar Bay, Oman Sea. This area is under the influence of the Indian Ocean seasonal monsoons.
Neda Fazeli   +3 more
doaj  

Arctic copepod copper sensitivity and comparison with Antarctic and temperate copepods

open access: yesEcotoxicology
AbstractThe ongoing global climate crisis increases temperatures in polar regions faster and with greater magnitude than elsewhere. The decline of Arctic sea ice opens up new passages, eventually leading to higher anthropogenic activities such as shipping, fishing, and mining.
Jan Heuschele   +4 more
openaire   +2 more sources

Prey detection in a cruising copepod [PDF]

open access: yesBiology Letters, 2011
Small cruising zooplankton depend on remote prey detection and active prey capture for efficient feeding. Direct, passive interception of prey is inherently very inefficient at low Reynolds numbers because the viscous boundary layer surrounding the approaching predator will push away potential prey. Yet, direct interception has been proposed to explain
Sanne, Kjellerup, Thomas, Kiørboe
openaire   +2 more sources

Copepod Mortality due to Short‐Term Exposure to Natural Ultraviolet Radiation at Subtropical Latitudes

open access: yesEcology and Evolution
Zooplankton, particularly copepods, are key components in aquatic food webs. However, the effects of ultraviolet (UV) radiation on copepods in marine systems, especially at tropical and subtropical latitudes, are not well understood.
Samuel Hylander   +5 more
doaj   +1 more source

Crustacean Zooplankton Ingestion of Potentially Toxic Microcystis: In Situ Estimation Using mcyE Gene Gut Content Detection in a Large Temperate Eutrophic Lake

open access: yesToxins
Grazing by zooplankton can regulate bloom-forming cyanobacteria but can also transfer toxin-producing cells, as well as toxic metabolites, to the food web.
Helen Agasild   +8 more
doaj   +1 more source

Biological effects of El Niño 1997-98 on a shallow subtropical ecosystem: Bahía Magdalena, Mexico [PDF]

open access: yesGeofísica Internacional, 2003
Sea surface temperature (SST), zooplankton biomass and chlorophyll a concentration, along with abundance of four copepod species: Acartia clausi, Acartia lilljeborgii, Paracalanus parvus and Calanus pacificus, and eggs and larvae of small pelagic fishes:
G. A. López-Ibarra   +7 more
doaj  

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