GillsBivalviaGastropodaSnailsAnimal ShellsLymnaeaBiomphalariaMollusk VenomsMytilusCrassostreaPolyplacophoraAplysiaClioneOstreidaeMytilidaeShellfishTilapiaInvertebratesFish DiseasesPinctadaGanglia, InvertebrateBrachyuraCephalopodaSeawaterAngiostrongylusFishesFresh WaterAnnelidaPectinidaeHelix (Snails)Oncorhynchus mykissPhylogenyAngiostrongylus cantonensisRadiometric DatingMolecular Sequence DataOctopodiformesAquaculturePlatyhelminthsMytilus edulisHemolymphProtozoan Infections, AnimalTrematode InfectionsSalmo salarAnimal StructuresCrustaceaHepatopancreasFMRFamideFundulidaeMoonHemocytesAmino Acid SequenceAcclimatizationWater-Electrolyte BalanceTroutLarvaChlordanFish ProteinsLoboseaAnguillaGangliaTrematoda