Tintinnids of Chesterfield Inlet, Northwest Territories

Tintinnids were numerically dominant in plankton samples collected from Chesterfield Inlet, Northwest Territories, in September 1978. Thirteen species were identified, 11 of which are new records for the Hudson Bay area. Tintinnopsis fimbriata and T. angusta were the most numerous tintinnids in the...

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Bibliographic Details
Published in:Canadian Journal of Zoology
Main Authors: Rogers, G. F., Roff, J. C., Lynn, D. H.
Format: Article in Journal/Newspaper
Language:English
Published: Canadian Science Publishing 1981
Subjects:
Animal Science and Zoology
Ecology, Evolution, Behavior and Systematics
Northwest Territories
Hudson Bay
Hudson
Chesterfield Inlet
Online Access:http://dx.doi.org/10.1139/z81-315
http://www.nrcresearchpress.com/doi/pdf/10.1139/z81-315
Description
Summary:Tintinnids were numerically dominant in plankton samples collected from Chesterfield Inlet, Northwest Territories, in September 1978. Thirteen species were identified, 11 of which are new records for the Hudson Bay area. Tintinnopsis fimbriata and T. angusta were the most numerous tintinnids in the upper estuary at salinities below 24‰; their cell numbers were significantly positively correlated to temperature. Parafavella denticulata was the most abundant species in marine waters but it penetrated the estuary to salinities as low as 4‰. Cell numbers and volumes of P. denticulata were significantly positively correlated to salinity and negatively to chlorophyll; this species appeared to act as an almost conservative indicator of marine influence in this estuary. The distributions of the two Tintinnopsis species were not so readily explained, but maximum numbers of T. fimbriata and T. angusta corresponded to a phytoplankton maximum at station 29 in the middle estuary.

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