Atlantic Rock Crab, unlike American Lobster, Is Important to Ecosystem Functioning in Northumberland Strait

Autor:	John Mark Hanson, Michel Comeau, Amélie Rondeau
Rok vydání:	2014
Předmět:	Homarus biology Crangon Pelagic zone American lobster Aquatic Science biology.organism_classification Fishery Myoxocephalus scorpius Demersal fish Geography Cancer irroratus Sculpin Ecology Evolution Behavior and Systematics
Zdroj:	Transactions of the American Fisheries Society. 143:1266-1279
ISSN:	1548-8659 0002-8487
DOI:	10.1080/00028487.2014.931300
Popis:	To compare the roles of American lobster Homarus americanus and Atlantic rock crab Cancer irroratus in the food web processes of a coastal ecosystem, distribution, abundance, stomach contents, diet overlap, and occurrence in stomachs of predators were described for the two species collected during July–August trawl surveys in Northumberland Strait, southern Gulf of St. Lawrence. Atlantic rock crab was more widely distributed, was more numerous on mud and muddy sand substrates, and occurred in deeper water than American lobster. Atlantic rock crab was the principal prey of American lobster while American lobster was almost never eaten by Atlantic rock crab. American lobster (benthic and pelagic stages) was a trace item in all fish and decapod stomachs examined except in those of the Shorthorn Sculpin Myoxocephalus scorpius and other American lobsters. In contrast, Atlantic rock crab larvae commonly occurred in stomachs of many pelagic fishes while small (
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e9b51aac422984f34d9b9b3c908d4887 https://doi.org/10.1080/00028487.2014.931300 Zobrazit plný text záznamu Plný text