Fontaine, M. (1954). The planktonic copepods (Calanoida, Cyclopoida, Monstrilloida) of Ungava Bay, with special reference to the biology of Pseudocalanus minutus and Calanus finmarchicus. M.Sc. Thesis, McGill University, Montréal, Québec, Canada. 214 pp.

450125

Fontaine, M.

1954

214 pp.

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Collections of planktonic copepods of Ungava Bay and central Hudson Strait were made during late June, July and August of 1947, 1949 and 1950. The fo1lowing twentytwo species have been identified: Calanus finmarchicus, Q.4yperboreus, C.helgolandicus, Pseudoca1anus minutus , Microcalanus pygmaeus, Gaidius tenuispinus, Aetideopsis rostrata, Pareuchaeta norvegica, P.glacialis, Eurytemora americana, Metridia longa,P1euromamma robusta, Heterorhabdus norvegicus, Acartia longiremis, A.bifilosa, Oithona similis, Oncaea borealis, Cyc10pina gracilis, C,Schneideri, Monstrilla dubia, M.helgolandica and M,canadensis. The latter five species have not previously been recorded from the western North Atlantic. Males of Cyclopina Schneideri are described for the first time. The two most abundant species, Calanus finmarchicus and Pseudocalanus minutus have one generation a year. A small part of the popùlation of Pseudocalanus minutus breeds a second time in the autumn. The next most common species, Acartia longiremis and Oithona similis, probably breed and spawn in July. The population dynamics of all the speeies are discussed•

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