By transferring energy and nutrients from plankton to top predators, forage species play a major ecological role in marine food webs. While large differences densities have been demonstrated among these species, other determinants of their quality remain poorly explored. We analysed 78 the Bay Biscay, NE Atlantic, for concentrations various chemical elements with documented biological (i.e. mic...

Mercury (Hg) is mainly incorporated into humans through the consumption of contaminated foods. was measured and methyl-Hg (MeHg) concentration estimated in canned mollusks sold northwestern Mexico to assess health risk consumers. Five mollusk types were considered: oysters, clams, octopuses, mussels, squids. The Hg mussels significantly (P < 0.05) lower than those other bivalves (oysters cla...

Cephalopods are new evolutionary and ecological models. By their phylogenetic position (Lophotrochozoa, Mollusca), they provide a missing master piece in the whole puzzle of neurodevelopment studies. Their derived and specific nervous system but also their convergence with vertebrates offer abundant materials to question the evolution and development of the nervous system of Metazoa (evo-devo s...

MUCH OF OUR PRESENT KNOWLEDGE about the species composition and distribution of ceph alopods of the Pacific Ocean is derived from collections made on cruises of the "Albatross," steamer of the U.S. Fish Comm ission, dur ing the late nine teenth and early twentieth centuries. "Albatross" collections along the west coast of North America were taken mainly off California and Central America or Ala...

A matrix-assisted laser desorption/ionization (MALDI) mass spectrometric (MS) survey of the major peptides in the stellar, fin and pallial nerves and the posterior chromatophore lobe of the cephalopods Sepia officinalis, Loligo opalescens and Dosidicus gigas has been performed. Although a large number of putative peptides are distinct among the three species, several molecular masses are conser...

Objective: To investigate the antifungal, haemolytic and cytotoxic activity of methanol and methanol: chloroform extracts of the marine Mollusks (10 Gastropods, 5 Bivalves, 2 Cephalopods) and 1 Echinoderm. Methods: Crude methanol and methanol: chloroform extracts of the marine Mollusks (10 Gastropods, 5 Bivalves, 2 Cephalopods) and 1 Echinoderm were tested for antifungal activity using disc dif...

The present study reports the level of total petroleum hydrocarbon (TPH) in 27 commercially important fish, crustaceans and cephalopods from Orissa coast, Bay of Bengal to provide the baseline data for oil contamination in marine biota. The results showed significant differences in the TPH concentration in different species. Of all fish, Carangoides malabaricus showed the maximum TPH level (av....

Although it is known that cephalopods and other marine molluscs accumulate organic osmolytes to prevent cellular water loss in the high salinity of seawater, very few studies on molluscs, and no studies on cephalopods have been performed to characterize the underlying transport processes. We used [H] betaine to quantify the uptake of betaine into giant fiber lobe motor neurons of the squid Loll...