Pink Scallop

TAXONOMY

Phylum: Mollusca
Class: Bivalvia
Order: Ostreoida
Family: Pectinidae

ECOLOGICAL DATA

Distribution: discontinuous along coast; may exist in small, higher density beds.

Habitat: sand/mud bottom in areas with strong current; planktonic larvae dispersed by currents; adults attach to rock with byssus and may move by swimming to new location and re-attaching.

Tidal elevation: 5 to 200 m subtidal depth.

Food: suspension feeder; mainly phytoplankton, detritus and zooplankton.

Predators: sea stars, snails, fish and boring worms and sponges.

GROWTH RATE

Slow; maximum growth of 85 mm reached in 4-5 yr; sexually mature at 60 mm, 2-3 yr.

FISHERY

Sporatic dragging fishery in 10-40 m subtidal depth; 1986 total scallop commercial catch was 68 t valued at $0.2 million.

REFERENCES

Bernard, F.R. 1983. Catalogue of the living bivalvia of the eastern Pacific Ocean: Bering Strait to Cape Horn. Can. Spec. Publ. Fish. Aquat. Sci. 61: 24.

Bourne, N. 1984. Scallop size limits, p. 67-71. In G.S. Jamieson [ed.] 1982 shellfish management advice, Pacific Region. Can. MS Rep. Fish. Aquat. Sci. 1774.

Bourne, N. 1986. Scallops, p. 40-44. In G.S. Jamieson [ed.] Invertebrate and marine plant fishery resources of British Columbia. Can. Spec. Publ. Fish. Aquat. Sci. 91.

Bourne, N. 1986. Bivalve fisheries: their exploitation and management with particular reference to the northeast Pacific region, p. 2-13. In G.S. Jamieson and N. Bourne [ed.] North Pacific Workshop on stock assessment and management on invertebrates. Can. Spec. Publ. Fish. Aquat. Sci. 92.

Hodgson, C.A., N. Bourne, and D. Mottershead. 1988. A selected bibliography of scallop literature. Can. MS Rep. Fish. Aquat. Sci. 1965: 133 p.

Kozloff, E.N. 1983. Seashore life of the northern Pacific coast. Douglas and McIntyre, Vancouver: 187-188.

Mottet, M.G. 1979. A review of the fishery biology and culture of scallops. Wash. Dep. Fish. Tech. Rep. 39: 100 p.