| temporal genetic homogeneity among shore crab (carcinus maenas) larval events supplied to an estuarine system on the portuguese northwest coast. | despite the importance of larval biology in the life histories of many marine animals, relatively little information exists on the dynamics and genetic composition of larval cohorts. the supply of megalopae larvae of the shore crab, carcinus maenas, was measured on a daily basis during 8 months spread along two larval periods (2006 and 2007) at the ria de aveiro estuary, on the portuguese northwest coast. a total of 10 microsatellite dna loci were employed to explore the genetic structure, varia ... | 2011 | 20959862 |
| morphological and molecular study of microphallus primas (digenea: microphallidae) metacercaria, infecting the shore crab carcinus maenas from northern portugal. | the present study describes the anatomy and surface topography of the metacercaria of microphallusprimas (jägerskiöld, 1909) infecting the shore crab carcinus maenas (l.) in aveiro estuary, northern portugal. the metacercaria species identification resulted from the combined use of morphological and molecular data, particularly the 28s rdna gene. the metacercariae encysted preferentially in the host's hepatopancreas and also in the gonads. isolated cysts were present in two distinct forms, spher ... | 2011 | 21539138 |
| seasonal fluctuations of tissue mercury contents in the european shore crab carcinus maenas from low and high contamination areas (ria de aveiro, portugal). | the main objective was to study the seasonal variation of mercury concentrations in different tissues (muscle, hepatopancreas and gills) of carcinus maenas from low and high hg contaminated areas, a valuable resource in temperate estuaries and a possible pathway for human uptake. individuals of two size classes (around 35 and 55 mm cephalothorax wide) were captured monthly between march 1999 and may 2000 in two areas of ria de aveiro: in the main navigation channel that connects the lagoon to th ... | 2006 | 16824552 |
| first confirmation of human diarrhoeic poisonings by okadaic acid esters after ingestion of razor clams (solen marginatus) and green crabs (carcinus maenas) in aveiro lagoon, portugal and detection of okadaic acid esters in phytoplankton. | a new outbreak of human diarrhoeic poisonings (dsp) with esters of okadaic acid (oa) was confirmed after ingestion of razor clams (solen marginatus) harvested at aveiro lagoon (nw portugal) in the summer of 2001. accumulation of marine toxins in second order consumers was investigated in the edible parts of a shellfish predator abundant at aveiro lagoon, the green crab carcinus maenas. okadaic acid was found, also in a predominant esterified form. levels in edible parts (comprising mainly viscer ... | 2002 | 12076653 |
| biomarker responses to environmental contamination in estuaries: a comparative multi-taxa approach. | estuaries are highly productive ecosystems subjected to numerous anthropogenic pressures with consequent environmental quality degradation. in this study, multiple biomarker responses [superoxide dismutase (sod), catalase (cat), ethoxyresorufin o-deethylase (erod) and glutathione s-transferase (gst) activities, as well as lipid peroxidation (lpo) and dna damage (dnad)] were determined in two fish (dicentrarchus labrax and pomatoschistus microps) and four macroinvertebrate species (carcinus maena ... | 2017 | 28578214 |