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Chaetognatha From The Central And Southern Middle Atlantic Bight - Species Composition, Temperature-Salinity Relationships, And Interspecific Associations, George C. Grant
VIMS Articles
Eighteen species of chaetognaths were identified from shelf waters in the Middle Atlantic Bight. Species composition in the water column and the hyponeuston was nearly identical, but the percent frequencies of the more common cold-temperate species were generally lower in surface collections. Mean surface salinity, weighted for abundance of individual chaetognath species in the hyponeuston collections, varied from 32.6 and 32.8 parts per thousand for the coastal- and estuarine-inhabiting Sagitta tenuis and Parasagitta elegans, to 34.8 and 34.9 for the offshore Pterosagitta draco and Krohnitta pacifica. Weighted mean temperatures ranged from below 14-degrees-C for Mesosagitta minima, P. elegans, and Serratosagitta …