ECOLOGICAL DATA
Distribution: throughout coastal waters, tends to be
more common along north coast.
Habitat: muddy bottoms; planktonic larvae but prefers bottom layer as they
develop; remain in shallow bays and inlets during first year due to abundant food supply.
Tidal elevation: 5 to 406 m subtidal depth.
Food: carnivore; mysids, other crustaceans and polychaete worms.
Predators: sand sole.
GROWTH RATE
Shrimp are potandrous hermaphrodites: spend the early part of
their lives as males and the remainder as females; as sexually mature males reach 90 mm in
March-May and 110 mm in fall of second year; change to females at 2-2.5 yr and measure
90-135 mm; life span is about 3 yr but may live until 4 yr; maximum size is 151 mm for
males and 192 mm for females.
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FISHERY Commercial fishery in Masset
Inlet, but taken in shrimp fisheries along coast; 1986 total shrimp commercial catch was
768 t valued at $1.2 million.
REFERENCES
Boutillier, J.A. 1986. Shrimp, p. 58-64. In G.S.
Jamieson and K. Francis [ed.] Invertebrate and marine plant fishery resources of British
Columbia. Can. Spec. Publ. Fish. Aquat. Sci. 91.
Butler, T.H. 1964. Growth, reproduction, and distribution of pandalid shrimps in
British Columbia. J. Fish. Res. Board Can. 21: 1403-1452.
Butler, T.H. 1980. Shrimps of the Pacific coast of Canada. Can. Bull. Fish. Aquat.
Sci. 202: 143-145.
Butler, T.H., and J. Boutillier. 1983. Selected shrimps of British Columbia.
Underwater World, Fish. Oceans Can., Ottawa: 6 p.
Scrivener, J.C., and T.H. Butler. 1971. A bibliography of shrimps of the Family
Pandalidae, emphasizing economically important species of the genus Pandalus. Fish.
Res. Board Can. Tech. Rep. 241: 42 p.
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