New records of association between brachyscelus cf. Rapacoides (arthropoda: Amphipoda) and medusae (cnidaria: Scyphozoa and hydrozoa) from são sebastião channel, southeast Brazil

Abstract

Medusae have a great diversity of associations with different crustacean groups such as Amphipoda, Cirripedia, Isopoda, Copepoda, Decapoda and Mysidacea . Amphipoda is one of the most representative groups of marine symbiotic crustaceans, many species are associated as symbionts or parasites of other organisms including cnidarians, mollusks, other crustaceans, tunicates, as well as fishes, sea turtles, dolphins, and whales, hyperiids represent a remarkable lineage of amphipods that are adapted to live as holoplanktonic forms that evolved from benthic ancestors, and use as a substratum, shelter and source of food other pelagic organisms, mainly gelatinous zooplankters, at least during the first part of their life cycle.