Field Guide for the Salish Sea - Home | Western Washington University
Field Guide for the Salish Sea - Western Washington University
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David Cowles http://rosario.wallawalla.edu/inverts Scientific Name Crassadoma gigantea Common Name(s) Rock scallop, Giant rock scallop, Purple-hinged rock scallop Habitats Low intertidal to 78 m below surface on rocky substrates with strong currents Distribution Prince Williams Sound, AK to Baja California, Mexico Abundance in Puget Sound Depleted Scientific Name Patinopecten caurinus Common Name(s) Weathervane Scallop, Giant Pacific Scallop Habitats 18-91 m below the surface on soft substrates Distribution Central Alaska to Northern California Abundance in Puget Sound Patchy Scientific Name Chlamys rubida Common Name(s) Smooth Pink Scallop, Reddish Scallop, Pacific Pink Scallop, Swimming Scallop Habitats Low intertidal to 300 m below the surface on soft and hard substrates Distribution Alaska Peninsula to San Diego, CA, though rare south of Puget Sound, WA Abundance in Puget Sound Less common than C. hastata, but still common Field Guide for the Salish Sea Commonly Harvested Scallops James Soda © 2008 Western Washington University Chad King/ SIMoN NOAA http://sanctuarysimon.org/photos/index.php Roger N. Clark http://www.jaxshells.org/12
Transcript of Field Guide for the Salish Sea - Western Washington University
David Cowleshttp://rosario.wallawalla.edu/inverts
Scientific Name Crassadoma gigantea
Common Name(s) Rock scallop, Giant rock scallop, Purple-hinged rock scallop
Habitats Low intertidal to 78 m below surface on rocky substrates with strong currents
Distribution Prince Williams Sound, AK to Baja California, Mexico
Abundance in Puget Sound Depleted
Scientific Name Patinopecten caurinus
Common Name(s) Weathervane Scallop, Giant Pacific Scallop
Habitats 18-91 m below the surface on soft substrates
Distribution Central Alaska to Northern California
Abundance in Puget Sound Patchy
Scientific Name Chlamys rubida
Common Name(s) Smooth Pink Scallop, Reddish Scallop, Pacific Pink Scallop, Swimming Scallop
Habitats Low intertidal to 300 m below the surface on soft and hard substrates
Distribution Alaska Peninsula to San Diego, CA, though rare south of Puget Sound, WA
Abundance in Puget Sound
Less common than C. hastata, but still common
Field Guide for the Salish Sea Commonly Harvested Scallops
James Soda
© 2008 Western Washington University
Chad King/ SIMoN NOAAhttp://sanctuarysimon.org/photos/index.php
Roger N. Clarkhttp://www.jaxshells.org/12
Scientific Name Synomyms
Crassadoma gigantea Hinnites giganteus, Hinnites multirugosus, Chlamys giganteaTaxonomy (Phylum, Class, Order, Family)
Mollusca, Bivalvia, Ostreoida, PectinidaeSimilar species
Oysters (such as Crassostrea gigas (the Pacific oyster)) and other scallops (such as Chlamys hastata (the spiny scallop))
Distinguishing CharactersUnlike other scallops, the shell is cemented to rocks. There is also a purple patch near the hinge that is unique to this species.
Natural History InformationWhen this species closes the valves of its shell, it occasionally produces a noise that is commonly heard in the intertidal zone.
Scientific Name SynomymsPatinopecten caurinus None
Taxonomy (Phylum, Class, Order, Family)Mollusca, Bivalvia, Ostreoida, Pectinidae
Similar speciesOther scallops (such as Crassedoma gigantea and Chlamys sp.)
Distinguishing CharactersUnlike C. gigantea, P. caurinus is not cemented to rocks, and it is significantly larger than Chlamys sp. (P. cauri-nus is 10.2-28 cm long while Chlamys sp. are 6-7 cm long).
Natural History InformationPatinopecten caurinus is the world’s largest scallop. It is also a common bycatch of trawls for bottom-feeding fish.
Scientific Name SynomymsChlamys rubida Chlamys jordani, Chlamys hindsii, Chlamys rubidus
Taxonomy (Phylum, Class, Order, Family)Mollusca, Bivalvia, Ostreoida, Pectinidae
Similar speciesChlamys hastata (the spiny scallop)
Distinguishing CharactersThe shell is smooth; it has no ruffles or spines
Natural History InformationThis species often has a sponge living on its shell. Both the sponge and the scallop benefit from this relationship. The sponge seems to ward off scallop predators, and the scallop will carry the sponge away from sponge predators.There are numerous eyes along the edge of this scallop, but these eyes cannot form an image.
Field Guide for the Salish Sea Commonly Harvested Scallops
James Soda
© 2008 Western Washington University
Scientific Name Chlamys hastata
Common Name(s) Spiny scallop, Pink scallop, Spear scallop, Spiny pink scallop
Habitats Generally subtidal, but sometimes lower intertidal and on floats
Distribution San Diego, CA to Gulf of Alaska
Abundance in Puget Sound Very Common
Field Guide for the Salish Sea Commonly Harvested Scallops
James Soda
© 2008 Western Washington University
David Cowleshttp://rosario.wallawalla.edu/inverts
Scientific Name SynomymsChlamys hastata Pectin hericius, Chlamys hericius, Chlamys hastata hericius
Taxonomy (Phylum, Class, Order, Family)Mollusca, Bivalvia, Ostreoidea, Pectinidae
Similar speciesChlamys rubida (Smooth Pink Scallop)
Distinguishing CharactersUnlike C. rubida, there are spines or ruffles along its ribs.
Natural History InformationWhen threatened, Chlamys hastata can swim by opening and closing the valves of its shell. This behavior shoots a jet of water from between the hinge that allows them to esape.
Field Guide for the Salish Sea Commonly Harvested Scallops
James Soda
© 2008 Western Washington University
