Skip Navigation


JPR Advance Access originally published online on March 4, 2008
Journal of Plankton Research 2008 30(6):723-734; doi:10.1093/plankt/fbn034
This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow All Versions of this Article:
30/6/723    most recent
fbn034v1
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 (2)
Right arrowRequest Permissions
Google Scholar
Right arrow Articles by Huo, Y.-Z.
Right arrow Articles by Liu, M.-T.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Huo, Y.-Z.
Right arrow Articles by Liu, M.-T.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

© The Author 2008. Published by Oxford University Press. All rights reserved. For permissions, please email: journals.permissions@oxfordjournals.org

Feeding and egg production of the planktonic copepod Calanus sinicus in spring and autumn in the Yellow Sea, China

Yuan-Zi Huo1,2, Shi-Wei Wang1,2, Song Sun1,*, Chao-Lun Li1 and Meng-Tan Liu1,2

1 Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao 266071, China 2 Graduate School, Chinese Academy of Sciences, Beijing 100049, China

* CORRESPONDING AUTHOR: sunsong{at}ms.qdio.ac.cn

Received on January 23, 2008; revised on February 25, 2008; accepted on February 27, 2008


  Abstract

Shipboard incubations were conducted in spring (April) and autumn (October/November) 2006 to measure the feeding and egg production rates (EPR) of Calanus sinicus in the Yellow Sea, China. The ingestion rate (2.08–11.46 and 0.26–3.70 µg C female–1 day–1 in spring and autumn, respectively) was positively correlated with microplankton carbon concentrations. In the northern part of the Yellow Sea, feeding on microplankton easily covers the respiratory and production requirements, whereas in the southern part in spring and in the frontal zone in autumn, C. sinicus must ingest alternative food sources. Low ingestion rates, no egg production and the dominance of the fifth copepodite (CV) stage indicated that C. sinicus was in quiescence inside the Yellow Sea Cold Bottom Water (YSCBW) area in autumn. Calanus sinicus ingested ciliates preferentially over other components of the microplankton. The EPR (0.16–12.6 eggs female–1 day–1 in spring and 11.4 eggs female–1 day–1 at only one station in autumn) increased with ciliate standing stock. Gross growth efficiency (GGE) was 13.4% (3–39%) in spring, which was correlated with the proportion of ciliates in the diet. These results indicate that ciliates have higher nutrient quality than other food items, but the low GGE indicates that the diet of C. sinicus is nutritionally incomplete.

Corresponding editor: Roger Harris


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
E. J. Yang, H.-K. Kang, S. Yoo, and J.-H. Hyun
Contribution of auto- and heterotrophic protozoa to the diet of copepods in the Ulleung Basin, East Sea/Japan Sea
J. Plankton Res., June 1, 2009; 31(6): 647 - 659.
[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.