Abstract
Dogielinotus loquax Barnard, a common intertidal macroinvertebrate on exposed ocean beaches near Grays Harbor, Washington, USA, is distributed from mid to mean high tidal levels, with a mean density of 1 830 m-2 in 1975–1976. Location of maximum density within the intertidal zone is related to surf intensity and varies seasonally. The species is iteroparous and has an average sex ratio of 1:1. Temperature constraints on growth and egg development rates apparently influence the timing of reproduction. Two dominant recruitments occur per year, one in early spring (the summer generation) and another in late summer (the overwintering generation). The sampling design and density estimates permitted estimation of the mortality rate for the summer generation. Shorebird predation is suspected to affect summer generation abundance.
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Communicated by S. K. Pierce, College Park
Dogielinotus loquax will soon be elevated to the type of a new genus, Proboscinotus (Bousfield and Tzvetkova, in press)
Contribution no. 1271 from the Department of Oceanography, University of Washington; Seattle, Washington 98195, USA
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Hughes, J.E. Life history of the sandy-beach amphipod Dogielinotus loquax (Crustacea: Dogielinotidae) from the outer coast of Washington, USA. Mar. Biol. 71, 167–175 (1982). https://doi.org/10.1007/BF00394626
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DOI: https://doi.org/10.1007/BF00394626