Record Details

Bathymetric zonation of nearshore mysids with emphasis on the beach-dwelling mysid Archaeomysis grebnitzkii

ScholarsArchive at Oregon State University

Field Value
Title Bathymetric zonation of nearshore mysids with emphasis on the beach-dwelling mysid Archaeomysis grebnitzkii
Names Llewellyn, Janet George (creator)
Holton, Robert L. (advisor)
Date Issued 1982-11-04 (iso8601)
Note Graduation date: 1983
Abstract Mysids were sampled seasonally from the intertidal
zone of the beach to a depth of 61 m offshore along the
mid-Oregon coast. The seven mysid species collected
occurred in characteristic bathymetric zones, with members
of different genera occupying overlapping zones
while members of the same genus occupied largely different
zones.
The distribution of one mysid species, Archaeomysis
grebnitzkii was examined in greater detail. Adult and
juvenile A. grebnitzkii were found to occupy different
zones. Juveniles occurred in the inner surf zone and
beach in high densities while adult animals were normally
found from the seaward edge of the surf zone
to 30 m in much lower densities. The mean brood size
of A. grebnitzkii was found to be 47.2, with larger
brood sizes occurring in early spring and summer
corresponding to larger body sizes of the breeding
females.
Genre Thesis/Dissertation
Topic Mysidacea
Identifier http://hdl.handle.net/1957/28067

© Western Waters Digital Library - GWLA member projects - Designed by the J. Willard Marriott Library - Hosted by Oregon State University Libraries and Press