Morphological variations of the Codium geppiorum complex from southern Taiwan were examined, and their karyotypes were studied by microspectrophotometry. Morphological analysis distinguished three prostrate Codium species, including C. edule P.C. Silva, C. geppiorum O.C. Schmidt, and a new taxon, C. nanwanense. Although these species show an anatomical continuum as the length of their utricles ...

The mortality of infaunal bivalves (Venerupis corrugata, Cerastoderma edule, Ruditapes decussatus and philippinarum) due to a drop in salinity caused by extreme precipitation events estuarine areas has been analyzed within context climate change. Rías Baixas (NW Iberian Peninsula) were selected as representative area the environments where bivalve gathering is performed. Bivalve under was both ...

In order to demonstrate filtration rate of edible cockle Cerastoderma edule under different salinity and temperature conditions, two groups namely healthy and parasited with Labratrema minimus (Bucephallidae; Digenea) were compared. Results showed that the parasited ones had difficulties in adaptation to the extreme conditions of salinity and temperature. Our results also showed that a healthy ...

Cockles are amongst the most exploited bivalve species in Portugal, playing an important ecological and socioeconomic role coastal ecosystems. Two sympatric of cockles, Cerastoderma edule ( Linnaeus, 1758 ) glaucum Bruguière, 1789–1792 may co-occur estuaries lagoons mixed populations along European Atlantic coast, namely France United Kingdom. The increasing importance shellfish harvesting Port...

We investigated the applicability of (2)H to measure the amount of body water (TBW) and water fluxes in relation to diet type and level of food intake in a mollusk-eating shorebird, the Red Knot (Calidris canutus). Six birds were exposed to eight experimental indoor conditions. Average fractional (2)H turnover rates ranged between 0. 182 day(-1) (SD = 0.0219) for fasting birds and 7.759 day(-1)...

This paper presents the results of a 4 year study to investigate the human alimentary tract transfer factor (f(A) value) and body retention of 210 Po in shellfish. In the first 3 years, mussels (Mytilus edulis L.), cockles (Cerastoderma edule L.) and brown meat from crab (Cancer pagurus L.) were successively studied. In each year five volunteers (from a pool of seven) ate a suitable portion of ...