Results 251 to 260 of about 127,493 (309)

Steroids in aquatic invertebrates

Ecotoxicology, 2007
Steroid molecules are present in all invertebrates, and some of them have established hormonal roles: this is the case for ecdysteroids in arthropods and, to a lesser extent, for vertebrate-type steroids in molluscs. Steroids are not only hormones, they may also fulfill many other functions in chemical communication, chemical defense or even digestive ...
René, Lafont, Michel, Mathieu
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Ecotoxicology, Aquatic Invertebrates

2014
Intérêt et limites des modèles invertébrés en écotoxicologie aquatique.
A. Chaumot   +3 more
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Chemoreception in Aquatic Invertebrates

2020
This chapter focuses on chemoreception in aquatic invertebrates, animals that, by the nature of their habitat, sense molecules in solution, as is typical of vertebrate taste. Many aquatic invertebrates have a well-developed chemical sense that enables the animals to monitor changes in the chemical composition of the aqueous environment in which they ...
Barry W. Ache, William E. S. Carr
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Aquatic Invertebrates

1997
The aquatic invertebrates of Amazonian floodplains can be divided into three large communities: the zooplankton, the benthos and the perizoon. Most studies deal with zooplankton, concentrating on taxonomic aspects and on community structure during the hydrological cycle.
Junk, W., Robertson, B.
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Aquatic Invertebrate Bioassays

1980
Description The first comprehensive review of the use of invertebrates in toxicity testing and hazard evaluation. Discussions range from comprehensive evaluations of specific organisms to proposals for alternative methods.
AL Buikema, J Cairns
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Migration of Aquatic Invertebrates

2004
Aquatic invertebrates are dependent on dispersion and migration for sustainable populations. Especially in running waters, these processes play a dominant role. Ephemeral water bodies have probably triggered dispersion phenomena in the evolutionary past.
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Ecotoxicology, aquatic invertebrates

Global chemical pollution is recognized as a major threat to marine and freshwater environments. The huge biodiversity of aquatic invertebrates, their key position in ecosystem functioning, their suitability for field and laboratory experimental approaches, the existing knowledge on their ecology, along with growing genomic resources made invertebrates
Chaumot, Arnaud   +3 more
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Aquatic Invertebrate Research

1988
As pointed out by the editors of several recent books (Barnes and Minshall 1983, Resh and Rosenberg 1984; Merritt and Cummins 1984), the freshwater biology literature, especially that concerned with stream ecology and aquatic invertebrates, has expanded enormously in the last 15 years. Research at Coweeta follows this worldwide trend.
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