Habitat associations of juvenile American lobster in three nearshore areas of Newfoundland

This project was completed by the Productive Capacity group (Coastal and Freshwater Ecology Section) in the Newfoundland and Labrador Science Branch of Fisheries and Oceans Canada (DFO).

American lobster (Homarus americanus) is a commercially important decapod crustacean species along the east coast of North America, ranging from the Labrador coast south to Cape Hatteras. Juvenile lobster 65% were juveniles, in contrast to Placentia Bay where lobster densities of all size groups were low (mean 0.01 m-2) and no juvenile lobsters were observed at all. Where observed all juvenile lobster were significantly associated with shallow (82.5 mm CL) which we observed at depths 6 to 17 m. Our sites were dominated by varying mixes of cobble and pebble (77%); rock/bedrock (12%) and mud/sand/small pebble (11%) substrates interspersed with overlying kelp (32%) and eelgrass (11%) vegetation. We observed no significant associations with substrate or vegetation.

This record contains the geographic locations of the 7 Placentia Bay sites surveyed, and information on the timing and type of data collected at each site, which was one component supported by Coastal Environmental Baseline Program of a larger collaborative project.

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Last Updated October 22, 2024, 15:56 (UTC)
Created October 1, 2024, 07:37 (UTC)
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Biota, Environment, Geoscientific Information, Oceans
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2024-01-01
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Fisheries and Oceans Canada | Pêches et Océans Canada
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Government of Canada; Fisheries and Oceans Canada; Science Branch, DFO.NLCAFE-ECEDTNL.MPO@dfo-mpo.gc.ca
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Robert.Gregory@dfo-mpo.gc.ca
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https://open.canada.ca/data/en/dataset/3c2e8fc3-9582-4cbe-976d-db1c4d22b7fb
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