Selective feeding of Acartia clausi and Centropages typicus on microzooplankton
نویسندگان
چکیده
منابع مشابه
Reproductive cycles of dominant calanoid copepods in the North Sea
The seasonal cycles of reproduction of the dominant copepods Acartia clausi, Temora longicornis, Centropages hamatus, C. typicus and Pseudocalanus spp. were studied at Helgoland Roads, southern North Sea. Egg production rate, clutch size, number of spawning females and prosome length were compared with temperature and phytoplankton concentration. Female A. clausi, T. longicornis and Pseudocalan...
متن کاملHeterospecific mating and partial prezygotic reproductive isolation in the planktonic marine copepods Centropages typicus and Centropages hamatus
Using three-dimensional (3D) video observations in laboratory experiments, I describe interspecific and intergeneric mating behaviors and motility patterns of the common planktonic marine copepods Centropages typicus, Centropages hamatus, and Temora longicornis. These observations are then used to estimate heterospecific and conspecific male mate-search volume rates and mate encounter rates in ...
متن کاملPopulation structure of the copepods Centropages typicus and Temora stylifera in different environmental conditions
The population structure (NI to adults) of the copepods Centropages typicus and Temora stylifera was investigated in parallel at two sites in the eutrophic and oligotrophic waters of the Gulf of Naples (Tyrrhenian Sea) with the aim of identifying the environmental factors that modulate the occurrence of these calanoids that are abundant in the neritic waters of the Mediterranean Sea. Monthly zo...
متن کاملComparison of the metabolism of Acartia clausi and A. tonsa: influence of temperature and salinity.
In the Marseilles region (French Mediterranean coast), A. clausi is one of the most abundant copepod species of the Gulf of Fos while A. tonsa constitutes the almost exclusive copepod species of the Berre lagoon, a neighbouring semi-closed brackish area communicating with the gulf. As different ecophysiological capabilities to stand the various temperature, salinity and food conditions could ex...
متن کاملEffects of copepod foraging behavior on predation risk: An experimental study of the predatory copepod Pareuchaeta nowegica feeding on Acartia clausi and A. tonsa (Copepoda)
The effect of foraging behavior on predation risk was studied by exposing the two small Calanoid copepods Acartia clausi and Acartia tonsa to 0 or 1 ppm (1,500 cells ml-l) of the diatom Thalassiosira weissfogii and to presence of the predator Pureuchaeta norvegica. In filtered water, predation rate was the same on the two species. In algal suspension, predation rate on A. clausi was half that i...
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ژورنال
عنوان ژورنال: Marine Ecology Progress Series
سال: 1989
ISSN: 0171-8630,1616-1599
DOI: 10.3354/meps053037