Seasonal changes in population of the Amphipod Gammarus aequicauda (Martynov, 1931)
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چکیده
منابع مشابه
Glacial-driven vicariance in the amphipod Gammarus duebeni.
We have examined the genetic diversity using mitochondrial COI and ND2 sequence data from 306 specimens of the amphi-Atlantic-distributed amphipod Gammarus duebeni. Marine populations from the Atlantic Ocean, the Baltic and North Sea, as well as freshwater populations from Ireland, Cornwall and Brittany were analysed. G. duebeni is a complex of five allopatric lineages. Freshwater populations r...
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So far, ecotoxicological studies used biomarkers of exposure or of effects in order to investigate the impacts of contaminated areas on biota (Peakall, 1994 [6]). However, although these results are important in the ecotoxicological risk assessment, biomarkers are very specific and only provide information on the biological processes or physiological pathways targeted by the biomarkers experime...
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The effects of the environmental estrogen 17alpha-ethinylestradiol (EE) on mixed populations of 90 individual Gammarus pulex were examined following a 100-d exposure in a flow-through system. Counts of total animal numbers revealed that, in all treatment groups, population size dramatically increased due to recruitment, with neonate and juvenile gammarids the most abundant. At concentrations of...
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We investigated the pattern of infection of Gammarus aequicauda (Amphipoda) with metacercariae of Levinseniella tridigitata (Trematoda: Microphallidae) in a natural lagoon. Prevalence was significantly higher in females than in males, whereas there was no difference between sexes in parasitic intensity. Despite the very large size of L. tridigitata metacercariae, the mean abundance increased wi...
متن کاملChanges in antitoxic defense systems of the freshwater amphipod Gammarus pulex exposed to BDE-47 and BDE-99.
Polybrominated diphenyl ethers (PBDEs) are emerging pollutants widely distributed in aquatic environment. Although the bioaccumulation of this compound has been well studied, few studies have investigated their impacts on antitoxic systems of invertebrates, considering both genders. Here, we have evaluated the effects of BDE-47 and BDE-99 congeners on the antitoxic defence systems of the freshw...
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ژورنال
عنوان ژورنال: Mediterranean Marine Science
سال: 2003
ISSN: 1791-6763,1108-393X
DOI: 10.12681/mms.240