The sensory mediation of symbiosis between hyperiid amphipods and salps
Citable URI
https://hdl.handle.net/1912/4623Location
Western North AtlanticCentral North Atlantic
Tongue of the Ocean
DOI
10.1575/1912/4623Keyword
Salpa; Hyperiidae; Oceanus (Ship : 1975-) Cruise OC177; Oceanus (Ship : 1975-) Cruise OC165; Oceanus (Ship : 1975-) Cruise OC170; Calanus (Ship) Cruise 87-07; Calanus (Ship) Cruise 85-07Abstract
Hyperiid amphipods are open ocean crustaceans which use gelatinous
planktonic animals for food, shelter, and brooding space for their offspring.
These associations involve varying degrees of host specificity; and there are
few obvious correlations between gross morphology of the amphipods and
the types of host they choose. The mechanisms which allow hyperiids to find
and select specific hosts in the water column were investigated through the
sensory and behavioral basis of these symbioses in three genera of hyperiids,
Vibilia, Lycaea, and Phronima, which differ in the nature of their
association with a common host - salps. The investigation included the
description of the distribution and morphology of sensilla on the dorsal
surface of the exoskeleton and antennules of the three genera of hyperiids
with speculation on their functions. The ultrastructure of the aesthetasc.
sensilla of Vibilia sp. was determined for comparison with other crustacean
aesthetasc sensilla, making a chemosensory function plausible. Behavioral
experiments were conducted at sea which demonstrated a chemosensory basis
for the host-specific associations between species of Vibilia and Lycaea and
salps. Observations on the internal anatomy and behavior of Phronima are
described which underscore the importance of salps to their general ecology.
Description
Submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy at the Massachusetts Institute of Technology and the Woods Hole Oceanographic Institution March 1988
Collections
Suggested Citation
Thesis: Diebel, Carol E., "The sensory mediation of symbiosis between hyperiid amphipods and salps", 1988-03, DOI:10.1575/1912/4623, https://hdl.handle.net/1912/4623Related items
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