If you are experiencing problems downloading PDF or HTML fulltext, our helpdesk recommend clearing your browser cache and trying again. If you need help in clearing your cache, please click here . Still need help? Email help@ingentaconnect.com

Too short to spawn? Implications of small body size and swimming distance on successful migration and maturation of the European eel Anguilla anguilla

$48.00 plus tax (Refund Policy)

Download / Buy Article:

Abstract:

Individual net fat reserves after migration and reproductive investments were calculated for migrating female silver eels Anguilla anguilla (n = 387) collected in the outlet region of the Baltic Sea during the autumn run. It is estimated that 20·4% of the A. anguilla had completely exhausted all initial fat reserves and that 45·0% of A. anguilla were within 90% of complete energy depletion after migration and reproduction. This study concludes that a combination of body size and distance (6900 km) to the spawning area in the Sargasso Sea explains the results. An increase in the costs of migration due to heavy infection with Anguillicoloides crassus was also evaluated in an additional scenario with results showing that 26·4% of the A. anguilla had completely depleted all fat reserves. It is hypothesized that a large proportion of female silver A. anguilla from the Baltic Sea catchment area will have inadequate or suboptimal reserves for successful migration and reproduction.

Keywords: Anguillicoloides crassus; cost of transport; fat content; reproduction; spawning

Document Type: Regular Paper

DOI: http://dx.doi.org/10.1111/j.1095-8649.2011.02920.x

Affiliations: 1: Department of Systems Ecology, Stockholm University, Stockholm, Sweden 2: Swedish Board of Fisheries, Institute of Freshwater Research, SE-178 93 Drottningholm, Sweden

Publication date: April 1, 2011

Related content

Tools

Favourites

Share Content

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
ingentaconnect 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