The variability in abundance of eugregarines living in the Antarctic krill

The variability in abundance of eugregarines associated with the Antarctic krill Euphausia superba was studied using samples collected from the vicinity of the Antarctic Peninsula. Body length, maturity stage and moult stage with respect to variation in eugregarines infection in krill were examined....

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Bibliographic Details
Main Authors: Kunio T. Takahashi, So Kawaguchi, Masaki Kobayashi, Tatsuki Toda
Format: Report
Language:English
Published: Faculty of Engineering, Soka University/Australian Antarctic Division/Faculty of Engineering, Soka University/Faculty of Engineering, Soka University 2004
Subjects:
eugregarine
parasite
Antarctic krill
body length
ANCOVA
Antarctic
Antarctic Peninsula
The Antarctic
Antarc*
Antarctic Krill
Euphausia superba
Polar bioscience
Online Access:https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=6206
http://id.nii.ac.jp/1291/00006206/
https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=6206&item_no=1&attribute_id=18&file_no=1
Description
Summary:The variability in abundance of eugregarines associated with the Antarctic krill Euphausia superba was studied using samples collected from the vicinity of the Antarctic Peninsula. Body length, maturity stage and moult stage with respect to variation in eugregarines infection in krill were examined. Body length was significantly correlated with abundance of eugregarines. The interaction between moult stage and maturity stage was statistically analyzed by ANCOVA with body length as the covariate. The analysis of moult stage did not show a significant effect on abundance of eugregarines while the interaction between maturity stage and body length showed significance. Larger krill have more eugregarines than smaller krill at the same maturity stage. Body length appears to be the most important factor determining the abundance of eugregarines.

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