1. Seasonal changes in biochemical composition in relation to energy metabolism and to
gametogenesis were studied in Mytilus edulis for nearly one and a half year. 2. 2. During the …

Variations in the tissue composition of the sea mussel Mytilus edulis L. from culture beds in
the western Dutch Wadden Sea were studied during the first half of 1978. Protein, glycogen …

The glycolytic fermentation of molluscs is rather complex. Multiple end products accumulate
(lactate, alanine, octopine, succinate, propionate, acetate and CO2), which are partly formed …

Survival, number of neonates per female, first day of reproduction and neonate size were
investigated in Daphnia magna, exposed to cadmium concentrations ranging from 0 to 50.0 …

The potential of the water-flea Daphnia magna to develop resistance to cadmium was
investigated. Three successive generations of daphnids were exposed to sublethal cadmium …

In semifield experiments sea stars, Asterias rubens, were exposed to 25 μg Cd/liter or fed
with mussels containing 0.6 μg/g wet wt PCBs (Clophen A50). After 5 months of exposure, Cd …

The role of ecdysteroids in moulting and reproduction of Daphnia magna has been
investigated. Further we examined whether previously observed moulting and reproduction …

The growth rate and biochemical composition of Mytilus edulis (L.) were studied during an
annual cycle. Mussels were selected on shell length every three weeks from the same …

Many invertebrate species are able to withstand periods with interrupted oxygen supply that
may extend over days. These so-called euryoxic organisms show metabolic adaptations …

Freshwater clams (Anodonta cygnea) were exposed to Cd 2+ (25 μg/L) or to Cd 2+ (25 μg/L)
plus Zn 2+ (2.5 mg/L). In the presence of zinc, uptake of cadmium in whole clam was halved…