Egg viability in the copepod Temora stylifera
نویسندگان
چکیده
منابع مشابه
Seasonal cycles of egg production of two planktonic copepods, Centropages typicus and Temora stylifera, in the north-western Mediterranean Sea
The reproductive biology of copepods plays a key role in seasonal population oscillations and therefore determines, among other things, annual production (Kiørboe et al., 1988; Fransz et al., 1989; Ianora and Buttino, 1990; Ianora et al., 1992; Halsband and Hirche, 2001). Reproduction is affected by various environmental factors, basically by temperature and food availability (Dagg, 1978; Landr...
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...
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Giant liposomes are proposed as a potential delivery system in marine copepods, the dominant constituent of the zooplankton. Liposomes were prepared in the same size range as the food ingested by copepods (mean diameter of about 7 microm). The encapsulation of a hydrophilic and high molecular mass fluorescent compound, fluorescein isothiocyanate-dextran (FitcDx), within the liposomes provided a...
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We have analysed the fine-scale kinematics of movement of male and female copepods, Temora longicornis, to resolve how these small animals find their mates. Location of the trail initially involves rapid random turning and high rates of directional change. Males subsequently increase their rate of movement as they follow the trail, and execute a regular pattern of counter turns in both x,z and ...
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Gut fluorescence attributable to algae caten by an herbivorous zooplankter should be a function of chlorophyll consumption minus loss of pheopigments in defecation. The amount of chlorophyll ingested, as determined in a laboratory grazing experiment, minus the gut pigment content at the end in the grazers, should equal chlorophyll dcfecatcd and should also provide a calibration for the determin...
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ژورنال
عنوان ژورنال: Limnology and Oceanography
سال: 1993
ISSN: 0024-3590
DOI: 10.4319/lo.1993.38.8.1615