Results 81 to 90 of about 3,359 (209)

Density-dependent adjustment of inducible defenses [PDF]

, 2015
International audiencePredation is a major factor driving evolution, and organisms have evolved adaptations increasing their survival chances. However, most defenses incur trade-offs between benefits and costs.
Duggen, Sonja, Kopp, Michael, Laforsch, Christian, Tollrian, Ralph, Weiss, Linda,   +4 more
core   +3 more sources

Use of eDNA and conventional sampling methods to survey rock pool (gnamma) biodiversity on granite inselbergs

Austral Ecology, Volume 49, Issue 8, August 2024.
Environmental DNA sampling coupled with high‐throughput sequencing is increasingly recognized as a useful method for assessing biodiversity with potential applications in terrestrial environments. Rock pools on granite inselbergs support diverse aquatic communities, yet the application of eDNA to document their biodiversity is lacking.
Damian R. Michael, Allan Murray, Phil Murray, Beau Murray, Sam Hagen, Richard Mcternan, Deborah J. Furst, Dale G. Nimmo   +7 more
wiley   +1 more source

Combined effect of concentrations of algal food (Chlorella vulgaris) and salt (sodium chloride) on the population growth of Brachionus calyciflorus and Brachionus patulus (Rotifera)

Revista de Biología Tropical, 2003
Salinity is an important variable influencing the density and diversity of rotifers. Studies on salt tolerance of rotifers have so far concentrated on euryhaline species while very little information is available on noneuryhaline taxa.
Víctor M. Peredo-Álvarez, S.S.S. Sarma, S. Nandini   +2 more
doaj  

Exploring Alternatives for Marine Toxicity Testing: Initial Evaluation of Fish Embryo and Mysid Tests

Environmental Toxicology and Chemistry, Volume 43, Issue 6, Page 1285-1299, June 2024.
Abstract Current regulations require that toxicity assessments be performed using standardized toxicity testing methods, often using fish. Recent legislation in both the European Union and United States has mandated that toxicity testing alternatives implement the 3Rs of animal research (replacement, reduction, and refinement) whenever possible.
Dalton S. Allen, Maddie M. Wiencek, Michaela M. Kelly, Katie S. Solomons, Marlo K. Sellin Jeffries   +4 more
wiley   +1 more source

ROTIFÈRES, ÉPIGÉNÉTIQUE ET ÉVOLUTION [PDF]

, 2009
Le second document joint est un long résumé en ahglais de l'article.International audienceAprès avoir rappelé mes motivations initiales pour entreprendre des recherches sur les rotifères, le présent travail présente certaines questions fondamentales ...
Clément, Pierre
core   +1 more source

Évaluation des risques écologiques causés par des matériaux de dragage: roposition d'une approche adaptée aux dépôts en gravière en eau [PDF]

, 2002
Une procédure d'évaluation des risques pour l'écosystème aquatique engendrés par un dépôt de matériaux de dragage dans une gravière type a été élaborée, et testée avec des échantillons de sédiments d'un canal du Nord-Est de la France.
Babut, M., Becart, D., Bray, M., Charrier, C., Clément, B., Delolme, C., Devaux, A., Durrieu, C., Garric, J., Perrodin, Y., Vollat, B.   +10 more
core   +2 more sources

Acute Toxicity Testing of Pink Salmon (Oncorhynchus gorbuscha) with the Tire Rubber–Derived Chemical 6PPD‐Quinone

Environmental Toxicology and Chemistry, Volume 43, Issue 6, Page 1332-1338, June 2024.
Abstract N‐(1,3‐dimethylbutyl)‐N′‐phenyl‐p‐phenylenediamine‐quinone (6PPD‐quinone) is a widespread contaminant of emerging concern resulting from oxidation of 6PPD, which is an antidegradant substance added to tires. The recent identification of 6PPD‐quinone as the cause of acute mortality in coho salmon has quickly motivated studies on 6PPD‐quinone ...
Anders Foldvik, Fedor Kryuchkov, Eva Marita Ulvan, Roar Sandodden, Eli Kvingedal   +4 more
wiley   +1 more source

Interaction between simulated dense Scenedesmus dimorphus (Chlorophyta) bloom and freshwater meta-zooplankton community

Journal of Limnology, 2018
Algal bloom has been a subject of much research, especially the occurrence of blue-green algae (cyanobacteria) blooms and their effects on aquatic ecosystems.
Zengling Ma, Hengguo Yu, Ronald Thring, Chuanjun Dai, Anglv Shen, Min Zhao   +5 more
doaj   +1 more source

Derivation of water quality guidelines for priority pharmaceuticals [PDF]

, 2016
Pharmaceuticals can enter freshwater and affect aquatic ecosystem health. Although toxicity tests have been carried out for the commonly used pharmaceuticals, evidence-based water quality guidelines have not been derived.
Andreozzi, Andreozzi, Ankley, Arle, Bendz, Bringolf, Brooks, Brooks, Buser, Caldwell, Caldwell, Calisto, Christensen, Cleuvers, Cleuvers, DeLorenzo, Dzialowski, Ferrari, Ferrari, Ferrari, Giltrow, Ginebreda, Han, Harada, Henry, Hobbs, Hoeger, Huggett, Hutchinson, Hutchinson, Johnson, Johnson, Jos, Kolpin, Kwon, Kwon, Lin, Liu, Llinas, Loos, Mohsen-Nia, Nentwig, Oakes, Owen, Pery, Quinn, Ramaswamy, Richards, Schmitt-Jansen, Schwaiger, Stanley, Stanley, Sumpter, Sumpter, Ternes, Tixier, Triebskorn, Tyler, Verlicchi, Wolf, Wolf, Zhao   +61 more
core   +2 more sources

Dynamique d'une population de Moina micrura (Crustacea, Cladocera) dans un bassin de lagunage à Marrakech (Maroc) [PDF]

, 1989
Au cours d'un suivi annuel du zooplancton d'un bassin de lagunage, une population de #Moina micrura$ s'est maintenue durant 1,5 mois (14 avril-2 juin). Des récoltes à intervalles de temps rapprochés (2 fois par semaine) ont permis de suivre la cinétique ...
Pourriot, R., Tifnouti, A.
core