Ampelisca eschrichtii are among the most important prey of the Western North Pacific gray whales, Eschrichtius robustus. The largest and densest known populations of this amphipod occur in the gray whale's Offshore feeding area on the Northeastern Sakhalin Island Shelf. The remote location, ice cover and stormy weather at the Offshore area have prevented winter sampling. The incomplete annual s...

Los crustáceos son un grupo diverso y abundante de la fauna invertebrada comunidad litoral estuarina. Este estudio presenta el primer compendio sobre anfípodos en estuario del río Miño, Península Ibérica, recolectada a través captura accidental pesca angula, muestreos con draga arrastre vara. Se examinaron total 100 especímenes pertenecientes 18 familias, 23 géneros 34 especies (23 nuevos regis...

A segment of the Guadalquivir River was assessed between Alcalá del Río dam and Seville through an integrative sediment quality assessment. Chemical concentrations metals toxicity under laboratory conditions were used as lines evidence. battery bioassays with four organisms (the amphipod Ampelisca brevicornis, bacteria Vibrio fischeri, sea urchin Paracentrotus lividus, oligochaete Tubifex tubif...