Results 61 to 70 of about 39,320 (339)

Influence of Age and Exposure Pathway on Copper and Cadmium Mixture Toxicity: A Study on Daphnia magna

Environmental Toxicology, EarlyView.
ABSTRACT Metal contamination in aquatic ecosystems poses substantial risks to freshwater organisms, with mixture effects often deviating from predictions based on single‐metal toxicity. Understanding how age‐specific sensitivities and multiple exposure pathways influence mixture effects is critical for accurate risk assessment.
Sanah Majid, Karen Smeets, Mubiana K. Valentine, Ronny Blust   +3 more
wiley   +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)

Brazilian 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, E. Hauenstein, M. Romero-Mieres   +2 more
doaj   +1 more source

Invasive goldfish trigger a regime shift in experimental lake ecosystems of varying trophic state

Journal of Animal Ecology, EarlyView.
The pet trade distributes exotic animals around the globe that enrich human lives. However, some pets become pests when released into the wild. This study provides experimental evidence that goldfish will negatively affect native freshwater organisms and ecosystems.
William D. Hintz, Hannah Barrett, Rick A. Relyea   +2 more
wiley   +1 more source

Respiration rate of pelagic copepods determined experimentally

, 2014
Respiration rate of pelagic copepods determined ...
Sano, Fumikazu, Fumikazu Sano (8008376), Yamaguchi, Atsushi, Atsushi Yamaguchi (8008373), Ikeda, Tsutomu, Tsutomu Ikeda (8008364)   +5 more
core   +1 more source

Snowmelt predicts earlier breeding across the latitudinal range of an Arctic nesting seabird, the Little Auk (Alle alle)

Journal of Animal Ecology, EarlyView.
Multi‐year monitoring of the crevice‐nesting High Arctic seabird, the Little Auk (Alle alle), across four colonies spanning distinct climatic regimes revealed that snowmelt timing is a key and consistent driver of breeding phenology. Earlier snowmelt advances access to nesting habitat, enabling birds to initiate reproduction sooner. These findings show
Martyna Syposz, Øystein Varpe, Sébastien Descamps, Jérôme Fort, David Grémillet, Ann Harding, Dariusz Jakubas, Dorota Kidawa, Nomikos Skyllas, Hallvard Strøm, Tom S. L. Versluijs, Katarzyna Wojczulanis‐Jakubas   +11 more
wiley   +1 more source

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

Frontiers 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, Reinaldo Rivera, Vera Oerder, Carolina E. González, Cristián E. Hernández, Cristián E. Hernández, Ruben Escribano, Ruben Escribano   +7 more
doaj   +1 more source

Respiration rate of oncaeid copepods determined experimentally

, 2014
Respiration rate of oncaeid copepods determined ...
Yuichiro Nishibe (8008436), Nishibe, Yuichiro, Ikeda, Tsutomu, Tsutomu Ikeda (8008364)   +3 more
core   +1 more source

Choreographed swimming of copepod nauplii [PDF]

Journal 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, Daisuke Takagi, Daniel K. Hartline   +2 more
openaire   +2 more sources

Geographic Patterns of Head Morphology in Syngnathus typhle Across Marine Regions

Integrative Zoology, EarlyView.
Morphometric analysis of Syngnathus typhle head shape shows distinct geographic patterns across Baltic, North, Atlantic, and Mediterranean marine regions, driven by variation in snout length, head depth, and eye position. Findings provide a non‐invasive baseline for conservation monitoring.
Miriam Ravisato, Glenn Le Floch, Cataldo Pierri, Vincent Bels, José J. Castro‐Hernandez, Raphael Cornette, Luca Giannattasio, Michele Gristina, Airam Guerra, Charlotta Kvarnemo, Tamara Lazic, Patrick Louisy, Nuno Monteiro, Bruno Serranito, Marco Spoto, Beatriz Taboada, Eric Feunteun   +16 more
wiley   +1 more source

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

International 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, Rasool Zare, Seyed Mohammad Bagher Nabavi, Saeed Sanjani   +3 more
doaj