Skip to main content

Regional and interannual variations in spawning activity of Pacific saury Cololabis saira during northward migration in spring in the north-western Pacific

Buy Article:

$51.00 plus tax (Refund Policy)

Abstract:

Regional and interannual variations in spawning activity of Pacific saury Cololabis saira during the northward migration in spring were investigated for 1995–1997 in the north-western Pacific. Only females with a large body size (≥270–290 mm knob length) appeared to spawn. Almost all females in this cohort were actively spawning in a region of sea surface temperature (TSS) >18° C, the proportion of active spawners appeared positively related to TSS in a region of 13° C < TSS≤ 18° C, and no females were spawning in the region of TSS≤13° C. Although this relationship between spawning activity and TSS was common in all years, the distribution of females in the large-size cohort among the regions varied interannually. Consequently, the proportion of active spawners among adult females showed considerable interannual variations.

Keywords: Cololabis saira; Pacific saury; distribution; interannual variations; sea surface temperature; spawning activity

Document Type: Regular Paper

DOI: http://dx.doi.org/10.1111/j.1095-8649.2006.01159.x

Publication date: September 1, 2006

bsc/jfb/2006/00000069/00000003/art00016
dcterms_title,dcterms_description,pub_keyword
6
5
20
40
5

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more