Skip Navigation


JPR Advance Access originally published online on April 18, 2005
Journal of Plankton Research 2005 27(5):415-426; doi:10.1093/plankt/fbi015
This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow All Versions of this Article:
27/5/415    most recent
fbi015v1
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in ISI Web of Science
Right arrow Alert me to new issues of the journal
Right arrow Add to My Personal Archive
Right arrow Download to citation manager
Right arrow Search for citing articles in:
ISI Web of Science (1)
Right arrowRequest Permissions
Google Scholar
Right arrow Articles by Napp, J. M.
Right arrow Articles by Clarke, C.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Napp, J. M.
Right arrow Articles by Clarke, C.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

Journal of Plankton Research Vol. 27 No. 5

Distribution and species-specific egg production of Pseudocalanus in the Gulf of Alaska

Jeffrey M. Napp1,*, Russell R. Hopcroft2, Christine T. Baier1 and Cheryl Clarke2

1 NOAA/Alaska Fisheries Science Center, 7600 Sand Point Way NE, Seattle, WA 98115–0070, USA and 2 Institute of Marine Science, University of Alaska, Fairbanks, Fairbanks, AK 99775–7220, USA

* Corresponding Author: jeff.napp{at}noaa.gov

Received September 29, 2004; accepted in principle November 8, 2004; accepted for publication March 24, 2005; published online April 18, 2005

Pseudocalanus species are important contributors to the secondary production of the northern hemisphere mid- to high-latitude oceans. In the coastal Gulf of Alaska, Pseudocalanus are present year round and are represented by three species. In 2001, Pseudocalanus mimus was the dominant Pseudocalanus species on the shelf during spring and summer, comprising 30–100% of the total, while Pseudocalanus newmani dominated in Prince William Sound (10–90%). Pseudocalanus minutus were only abundant in Prince William Sound during early spring. Egg production (by number and volume) was a function of female prosome length and decreased from spring to summer; however, significant variability was attributable to regional influences that were independent of size. For the same sized female, P. newmani produced more eggs per clutch than P. mimus. Pseudocalanus mimus, however, tended to have a larger mean egg size than P. newmani. Consequently, clutch volumes of the two species were indistinguishable. Pseudocalanus egg production rates (EPRs) (eggs female–1 day–1) were lower in July and August (ca. 2–4) than April and May (ca. 1–9), but total egg production by the population (eggs day–1) was nearly equivalent for the two time periods due to higher female concentrations in summer.


Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us    What's this?


This article has been cited by other articles:


Home page
 J PLANKTON RESHome page
H. Liu and R. R. Hopcroft
Growth and development of Pseudocalanus spp. in the northern Gulf of Alaska
J. Plankton Res., August 1, 2008; 30(8): 923 - 935.
[Abstract] [Full Text] [PDF]

Home page
 J PLANKTON RESHome page
J. Renz, D. Mengedoht, and H.-J. Hirche
Reproduction, growth and secondary production of Pseudocalanus elongatus Boeck (Copepoda, Calanoida) in the southern North Sea
J. Plankton Res., May 1, 2008; 30(5): 511 - 528.
[Abstract] [Full Text] [PDF]


Disclaimer: Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. All efforts have been made to ensure accuracy, but the Publisher will not be held responsible for any remaining inaccuracies. If you require any further clarification, please contact our Customer Services Department.