IMIS | Flanders Marine Institute
 

Flanders Marine Institute

Platform for marine research

IMIS

Publications | Institutes | Persons | Datasets | Projects | Maps
[ report an error in this record ]basket (0): add | show Printer-friendly version

The distribution of life cycle stages of two deep-water pleuronectids, Dover sole (Microstomus pacificus) and rex sole (Glyptocephalus zachirus), at the northern extent of their range in the Gulf of Alaska
Abookire, A.A.; Bailey, K.M. (2007). The distribution of life cycle stages of two deep-water pleuronectids, Dover sole (Microstomus pacificus) and rex sole (Glyptocephalus zachirus), at the northern extent of their range in the Gulf of Alaska, in: Yamashita, Y. et al. (Ed.) Proceedings of the Sixth International Symposium on Flatfish Ecology, Part 1, held at Maizuru, Kyoto, Japan from 20-25 October 2005. Journal of Sea Research, 57(Spec. Issue 2-3): pp. 198-208. dx.doi.org/10.1016/j.seares.2006.08.004
In: Yamashita, Y.; Nash, R.D.M.; van der Veer, H.W. (Ed.) (2007). Proceedings of the Sixth International Symposium on Flatfish Ecology, Part 1, held at Maizuru, Kyoto, Japan from 20-25 October 2005. Journal of Sea Research, 57(Spec. Issue 2-3). Elsevier: Amsterdam. IV, 89-235 pp., more
In: Journal of Sea Research. Elsevier/Netherlands Institute for Sea Research: Amsterdam; Den Burg. ISSN 1385-1101, more
Peer reviewed article  

Also published as
  • Abookire, A.A.; Bailey, K.M. (2007). The distribution of life cycle stages of two deep-water pleuronectids, Dover sole (Microstomus pacificus) and rex sole (Glyptocephalus zachirus), at the northern extent of their range in the Gulf of Alaska. J. Sea Res. 57(Spec. Issue 2-3): 198-208, more

Available in  Authors 
    VLIZ: Proceedings [118463]

Keywords
    Deep-sea fisheries; Developmental stages; Fishery surveys; Life cycle; Long-term records; Spawning; Glyptocephalus zachirus Lockington, 1879 [WoRMS]; Microstomus pacificus (Lockington, 1879) [WoRMS]; INE, USA, Alaska, Alaska Gulf [Marine Regions]; Marine

Authors  Top 
  • Abookire, A.A.
  • Bailey, K.M.

Abstract
    Dover sole (Microstomus pacificus) and rex sole (Glyptocephalus zachirus) are both commercially valuable, long-lived pleuronectids that are distributed widely throughout the North Pacific. While their ecology and life cycle have been described for southern stocks, few investigations have focused on these species at higher latitudes. We synthesized historical research survey data among critical developmental stages to determine the distribution of life cycle stages for both species in the northern Gulf of Alaska (GOA). Bottom trawl survey data from 1953 to 2004 (25 519 trawls) were used to characterize adult distribution during the non-spawning and spawning seasons, ichthyoplankton data from 1972 to 2003 (10 776 tows) were used to determine the spatial and vertical distribution of eggs and larvae, and small-meshed shrimp trawl survey data from 1972 to 2004 (6536 trawls) were used to characterize areas utilized by immature stages. During the non-spawning season, adult Dover sole and rex sole were widely distributed from the inner shelf to outer slope. While both species concentrated on the continental slope to spawn, Dover sole spawning areas were more geographically specific than rex sole. Although spawned in deep water, eggs of both species were found in surface waters near spawning areas. Dover sole larvae did not appear to have an organized migration from offshore spawning grounds toward coastal nursery areas, and our data indicated facultative settling to their juvenile habitat in winter. Rex sole larvae progressively moved cross-shelf toward shore as they grew from April to September, and larvae presumably settled in coastal nursery areas in the autumn. In contrast with studies in the southern end of their range, we found no evidence in the GOA that Dover or rex sole have pelagic larval stages longer than nine months; however, more sampling for large larvae is needed in winter offshore of the continental shelf as well as sampling for newly settled larvae over the shelf to verify an abbreviated pelagic larval stage for both species at the northern end of their range.

All data in IMIS is subject to the VLIZ privacy policy Top | Authors