Overview
Comprehensive Description
© Rosario Beach Marine Laboratory
Source:
Invertebrates of the Salish Sea
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Wicksten,Mary K., 2009. ; Decapod Crustacea of the Californian and OregonianZoogeographic Provinces. ; UC San Diego Scripps Institution of OceanographyLibrary, Scripps Institution of Oceanography. ; http://escholarship.org/uc/item/7sk92dz ;418 pages. ; Published online only. ; This excellent key coversdecapods (crustaceans such as crabs, shrimp, spiny lobsters, hermit crabs,and crayfish) from shallow and deep water from Puget Sound south to thePacific coast of Baja California. ; Includes many subkeys, drawings,and photos. ; No glossary, table of contents, or index. ; Thisis the place to go for the most up-to-date key for decapods. ; MaryWicksten plans to publish an updated version of this key soon.
http://www.wallawalla.edu/academics/departments/biology/rosario/inverts/Annotated_Bibliography.html#Wicksten+2009
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Jensen, Gregory C., 1995. ;Pacific Coast Crabs and Shrimps. ; Sea Challengers, Monterey, CA. ;87 pp. ; ISBN 0-930118-20-0. ; This paperback contains excellentpictures and brief descriptions of many crabs and shrimp from along thePacific coast. ; Sections are arranged by animal group. ; Includesa short glossary.
http://www.wallawalla.edu/academics/departments/biology/rosario/inverts/Annotated_Bibliography.html#Jensen+1995
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Hart, Josephine F.L., 1982. ;Crabs and their relatives of British Columbia. ; British Columbia ProvincialMuseum Handbook 40. ; Paperback. ; 267 pages. ; This smallpaperback contains keys and individual descriptions and drawings of 95species of true crabs, hermit crabs, other anomurans, mud and ghost shrimp(but not shrimp or prawns) found off British Columbia. ; An introductiongives an extensive discussion of the general biology and anatomy of crabsand other similar crustaceans, including topics such as sexual dimorphism,larvae, and parasites. ; A variety of drawings and tables are included. ;The general characteristics of each of the families included in the bookare discussed. ; Keys to the families of each section (Thalassinidea,Anomura, Brachyrua) are included but one needs to know beforehand whichsection the animal is in. ; Keys are also included for the membersof each family. ; A useful key for the serious student wanting to identifycrabs.
http://www.wallawalla.edu/academics/departments/biology/rosario/inverts/Annotated_Bibliography.html#Hart+1982
© Rosario Beach Marine Laboratory
Source:
Invertebrates of the Salish Sea
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Distribution
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Natural Geography in Shore Areas (NaGISA) database, compiled by Ann Knowlton.
http://www.marinespecies.org/arms/aphia.php?p=sourcedetails&id=145467
© WoRMS for SMEBD
Source:
World Register of Marine Species
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© Rosario Beach Marine Laboratory
Source:
Invertebrates of the Salish Sea
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Physical Description
Look Alikes
© Rosario Beach Marine Laboratory
Source:
Invertebrates of the Salish Sea
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Ecology
Habitat
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Natural Geography in Shore Areas (NaGISA) database, compiled by Ann Knowlton.
http://www.marinespecies.org/arms/aphia.php?p=sourcedetails&id=145467
© WoRMS for SMEBD
Source:
World Register of Marine Species
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Water temperature and chemistry ranges based on 51 samples.
Environmental ranges
Depth range (m): -1 - 1061
Temperature range (°C): 7.261 - 10.151
Nitrate (umol/L): 6.582 - 26.963
Salinity (PPS): 31.460 - 33.771
Oxygen (ml/l): 3.157 - 6.649
Phosphate (umol/l): 0.929 - 2.219
Silicate (umol/l): 13.303 - 40.988
Graphical representation
Depth range (m): -1 - 1061
Temperature range (°C): 7.261 - 10.151
Nitrate (umol/L): 6.582 - 26.963
Salinity (PPS): 31.460 - 33.771
Oxygen (ml/l): 3.157 - 6.649
Phosphate (umol/l): 0.929 - 2.219
Silicate (umol/l): 13.303 - 40.988
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.
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Habitat: Rocky and soft bottoms. Most common around rocks. Often found half-buried in sand under rocks during the day; more active at night.
© Rosario Beach Marine Laboratory
Source:
Invertebrates of the Salish Sea
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Molecular Biology and Genetics
Molecular Biology
Barcode data: Cancer productus
There are 3 barcode sequences available from BOLD and GenBank. Below is a sequence of the barcode region Cytochrome oxidase subunit 1 (COI or COX1) from a member of the species. See the BOLD taxonomy browser for more complete information about this specimen and other sequences.
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Download FASTA File
© Barcode of Life Data Systems
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Statistics of barcoding coverage: Cancer productus
Public Records: 11
Specimens with Barcodes: 13
Species With Barcodes: 1
© Barcode of Life Data Systems
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Wikipedia
Cancer productus
Cancer productus, one of several species known as red rock crabs, is a crab of the genus Cancer found on the western coast of North America.
Contents |
Description
Cancer productus has carapace teeth that are somewhat broad and rounded with teeth between the eyes of nearly equal size and shape. The carapace of C. productus is widest at the posterior-most tooth, up to 20.0 cm wide. The pincers are large with distinctive black tips. This species lacks serrations or projections on the ventral side of the claws. Adults have a brick-red coloration throughout. The coloration of juveniles is diverse, often white, sometimes with red spots, or zebra-striped.[1]
Similar species
Dungeness crab (Metacarcinus magister) has serrations on the dorsal side of the chelipeds and lacks black tips. The graceful rock crab (Metacarcinus gracilis) has a single projection on the dorsal side of the chelipeds and also lacks black tips, and the widest point of carapace is at the second posterior-most tooth. The pygmy rock crab (Glebocarcinus oregonensis) has black-tipped chelipeds, but has large tubercles on the dorsum. G. oregonensis is also much smaller, such that a C. productus of similar size would generally have the striking juvenile coloration.[1]
Range and habitat
C. productus ranges from Kodiak Island, Alaska to Isla San Martine, Baja California. It inhabits mid-intertidal waters to 79 m depth.[2]
Biology
Cancer productus is carnivorous; in Puget Sound it will crush barnacles with its large pincers for consumption. Small living crabs and dead fish are also eaten. Mating in this species occurs when the female is soft-shelled from October to June in Puget Sound. The male can often been seen guarding females until molting during this time.[3] This species is known to be a favorite prey item of Enteroctopus dofleini, the giant Pacific octopus.[4]
Fishery
Although C. productus is harvested by sport fishermen, there is no commercial fishery. It is not as sought after as Dungeness crab due to the considerably lower amount of flesh. However, the flesh has a delicate flavor and slightly sweet taste. The similar Cancer pagurus has a major commercial fishery in western Europe. Both males and females with a carapace exceeding 5 inches (130 mm) may be harvested in Washington, when in season.
References
- ^ a b Eugene N. Kozloff (1987). Marine Invertebrates of the Pacific Northwest. University of Washington Press, Seattle, WA. pp. 511 pp.
- ^ Gregory C. Jensen (1995). Pacific Coast Crabs and Shrimps. Sea Challengers, Monterey, CA. pp. 87 pp.
- ^ R. H. Morris, D. P. Abbot and E. C. Haderlie (1980). Intertidal Invertebrates of California. Stanford University Press, Stanford, CA. pp. 690 pp.
- ^ E. B. Hartwick, L. Tulloch and S. MacDonald (1981). "Feeding and growth of Octopus dofleini". The Veliger 24 (2): 129–138.
Source:
Wikipedia
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