The Distribution of Animals in the Eastern North Pacific and its Relationship to Physical and Chemical Conditions
- 1 February 1962
- journal article
- research article
- Published by Canadian Science Publishing in Journal of the Fisheries Research Board of Canada
- Vol. 19 (2), 271-314
- https://doi.org/10.1139/f62-014
Abstract
Sampling with the Isaacs-Kidd midwater trawl yields good quantities of large and easily-identified animals that can be used as "indicator organisms" to identify water masses in the northeastern Pacific Ocean. Particularly useful are the myctophid fishes Lampanyctus leucopsarus, Diaphus theta, Tarletonbeania crenularis, Electrona arctica, E. crockeri, Ceratoscopelus townsendi and Lampanyctus ritteri, the pteropods Limacina helicina, Cavolinia globulosa and Euclio pyramidata, and the heteropod genus Atlanta. In going from Subarctic water to warmer Intermediate water in the open ocean, numbers of animals declined and the species changed markedly. By the time quantities or Central or Tropical water are encountered, catches were about 1/100 of those in Subarctic water. Inshore catches off southern British Columbia and Washington in 1958 were only about 1/10 as great as in comparable hauls in 1957[long dash]a difference which coincides with a greater instrusion of Intermediate water in 1958.This publication has 7 references indexed in Scilit:
- An Anomalous Increase of Temperature in the Ocean off the Pacific Coast of Canada through 1957 and 1958Journal of the Fisheries Research Board of Canada, 1960
- Some Oceanographic Features of the Northeast Pacific Ocean during August 1955Journal of the Fisheries Research Board of Canada, 1959
- Observations on a scattering layer at the thermoclineDeep Sea Research (1953), 1958
- On Conditions for the Vernal Blooming of PhytoplanktonICES Journal of Marine Science, 1953
- EYES OF DEEP-SEA CRUSTACEANSThe Biological Bulletin, 1938
- DIURNAL MIGRATION OF PLANKTON IN THE GULF OF MAINE AND ITS CORRELATION WITH CHANGES IN SUBMARINE IRRADIATIONThe Biological Bulletin, 1933
- THE VERTICAL DISTRIBUTION OF PLANKTON IN THE SEABiological Reviews, 1927