TY - JOUR AU - Diebel, Carol E. AB - Hyperiid amphipods rank third in abun- dance following copepods and euphausiids as members of the marine crustacean zoo- plankton. They are entirely marine, pelagic, and mostly oceanic, with a few species found in coastal waters. The ecological place of hyperiids is distinct from that of most other pelagic crustaceans. They are almost all symbionts (for at least part of their lives) with gelatinous organisms such as salps, medusae, siphonophores, and ctenophores, which may be used as a platform for feeding, a food source, or as a nursery for developing young (Pirlot, 1932; Harbison et al., 1977; Madin and Harbison, 1977; Laval, 1980). Phronima sedentaria (Forskal, 1775) is the most abundant species in the family Phronimidae and has a worldwide distri- bution (Shih, 1969). The characters of the family and genus have been described by Bowman and Gruner (1973). Phronirna se- dentaria exhibits diurnal vertical migration with no apparent differences among age classes, and is relatively abundant in epi- and mesopelagic waters. Its geographical distribution is related to water masses (Shih, 1969). Phronirna is a free-swimming carnivo- rous predator that uses salps, pyrosomes, or siphonophores as a food source, feeding platform, and brood chamber (Bowman and Gruner, 1973; Laval, TI - OBSERVATIONS ON THE ANATOMY AND BEHAVIOR OF PHRONIMA SEDENTARIA (FORSKAL) (AMPHIPODA: HYPERIIDEA) JO - Journal of Crustacean Biology DO - 10.1163/193724088X00107 DA - 1988-01-01 UR - https://www.deepdyve.com/lp/brill/observations-on-the-anatomy-and-behavior-of-phronima-sedentaria-spAgQFyjdt SP - 79 EP - 90 VL - 8 IS - 1 DP - DeepDyve ER -