Abundance, distribution, and feeding aspects of selected zooplankton species in the subartic Pacific ...

• Main Author: Wen, Marc Eric An-Ping
• Format: Text
• Language: English
• Published: University of British Columbia 2009
• Subjects: Subarctic; Copepods
• Online Access: https://dx.doi.org/10.14288/1.0087037; https://doi.library.ubc.ca/10.14288/1.0087037

Changes in the abundance of zooplankton species from the North American west coast to the open northeastern subarctic Pacific are not well documented. This study examines the abundance and distribution of important zooplankton species in the subarctic Pacific from the continental slope region to the open ocean in relation to physical, chemical, and biological parameters. Zooplankton samples were collected to a depth of at least 100 m using a modified SCOR (WP-2) net along the Line P transect (about 49°N, 127°W to 50°N, 145°W), during March and May 1993, and February and May 1994. Despite recent efforts to quantify the grazing pressures imposed on phytoplankton by the predominant copepods species of the subarctic Pacific, there is little detailed information on the diets of the predominant copepod species in this region. A shipboard experiment was conducted at Station P in May 1994, to examine the feeding behaviour of a predominant subarctic copepod species, Neocalanus flemingeri (Miller), grazing on a ...