Marine Biodiversity and Ecosystem Functioning
EU Network of Excellence

 
Main Menu

· Home
· Contacts
· Data System
· Documents
· Events Calendar
· FAQ
· Forums
· Job M@RKET
· Links
· MarBEF Open Archive
· Network Description
· Outreach
· Photo Gallery
· Quality Assurance
· Register of Resources
· Research Projects
· Rules and Guidelines
· Training
· Weekly News Bulletin
· Wiki
· Worldconference
 

 

Last 3 Job opportunities View latest job opportunities RSS feed


>> Go to Job M@RKET

Last 2 forum posts View MarBEF Forum RSS feed

 Field course on sharks in South Africa (June 2011)
 training opportunity in basic taxonomy

>> Go to forums

 

 
Who's Online

Currently 50 guest(s) online
Currently 0 member(s) online
 

 
Login

Username

Password

 

Register of Resources (RoR)

 People  |  Datasets  |  Literature  |  Institutes  |  Projects 

[ report an error in this record ]basket (0): add | show Printer-friendly version

Distribution and population characteristics of the alien talitrid amphipod Orchestia cavimana in relation to environmental conditions in the Northeastern Baltic Sea
Herkül, K.; Kotta, J.; Kotta, I. (2006). Distribution and population characteristics of the alien talitrid amphipod Orchestia cavimana in relation to environmental conditions in the Northeastern Baltic Sea. Helgol. Mar. Res. 60(2): 121-126
In: Helgoland Marine Research. Springer: Berlin; Heidelberg. ISSN 1438-387X
Peer reviewed article  

Available in  Authors | Dataset 
    VLIZ: Open Repository 100519 [ MOA ]

Keywords

Authors  Top | Dataset 
  • Herkül, K.
  • Kotta, J., more
  • Kotta, I.

Abstract
    The talitrid amphipods were found for the first time in the Northeastern Baltic Sea in 1999. Orchestia cavimana inhabited damp wracks cast up on shore within a 200 m area of Saaremaa Island. In the following year, the species expanded its range to a few kilometres. In 2002, six additional locations of O. cavimana were found in Saaremaa Island and two locations in the Northwestern part of Estonia. Abundances and biomasses were highest in the first year of the invasion. In the following years, the values stabilized on remarkably lower levels. Population characteristics of the species varied significantly between locations. The average biomass and abundance were 9 g dw m−2 and 1975 ind m−2, respectively. Wrack biomass and interaction between wrack biomass and exposure were the best predictors of the abundances and biomasses of O. cavimana. Humidity explained additional variability in biomasses. The size structure of the population of O. cavimana was mostly related to humidity and wrack biomass. The Southern coast of the Baltic Sea may be regarded as the initial donor region for the Estonian populations of O. cavimana. The vector of this invasion is most likely related to the natural dispersal of the drifting algae but human activities as a transport vector can not be excluded. The incredible speed of the invasion of O. cavimana and its high biomasses indicate that the species will very likely extend its distribution along the coast of the Northeastern Baltic Sea in the following years.

Dataset
  • MarBEF Publication Series data, more

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


If any information here appears to be incorrect, please contact us
Back to Register of Resources