Marine Biodiversity and Ecosystem Functioning
EU Network of Excellence

 
Main Menu

· Home
· Contacts
· Data Systems
· Documents
· FAQ
· Links
· MarBEF Open Archive
· Network Description
· Outreach
· Photo Gallery
· Quality Assurance
· Register of Resources
· Research Projects
· Rules and Guidelines
· Training
· Wiki
· Worldconference

 

Register of Resources (RoR)

 People  |  Datasets  |  Literature  |  Institutes  |  Projects 

[ report an error in this record ]basket (1): add | show Print this page

one publication added to basket [203836]
Effect of habitat fragmentation on bivalve larvae recruitment: Study of Pinna nobilis and Pectinidae species larvae
Berkovic, B. (2010). Effect of habitat fragmentation on bivalve larvae recruitment: Study of Pinna nobilis and Pectinidae species larvae. MSc Thesis. Erasmus Mundus Master of Science in Marine Biodiversity and Conservation (EMBC)/Universidade do Algarve: Faro. 66 pp.

Thesis info:

Available in  Author 
Document type: Dissertation

Keywords
    Population functions > Recruitment
    Pectinidae Rafinesque, 1815 [WoRMS]; Pinna nobilis Linnaeus, 1758 [WoRMS]
    Marine/Coastal

Author  Top 
  • Berkovic, B.

Abstract
    Habitat fragmentation is one of the most obvious changes in nature and for that reason this study aimed to find the relation between the habitat fragmentation and the community inhabiting fragmented habitat. As a model habitat, important and endangered Posidonia oceanica meadows were used. These endemic habitats are wide spread throughout the Mediterranean playing important multiple roles as habitat providers, carrying function of ecosystem engineers, nursery areas, primary producers and sediment stabilizers. Effect of fragmentation of the P. oceanica meadows was studied on two groups of bivalve larvae endemic Mediterranean species Pinna nobili and widespread scallops of Pectinidae family. These species were chosen for their different life strategies and movement capabilities. On five sites around the Mallorca Island in Spanish Mediterranean, larval collectors were set to provide artificial surface for larvae settlement. Collectors were submerged during 3 month sampling period between July and September 2009. Data on numbers, species composition and post-settlement presence of larvae on the collectors was collected. At the same time, various environmental and habitat descriptors were collected about the temperature, waves, P. nobilis adult population, P. oceanica meadow characteristics (demography and density) and fragmentation. Fragmentation was described based on the number of gaps, gap area, perimeter and perimeter/area ratio. Highest numbers of larvae were found at Pollença and Magaluf. While there was no observed correlation between the settlement of larvae and any of the monitored parameters in case of Pectinidae, there was correlation in case of settlement of P. nobilis larvae and P. oceanica meadow demographic data. Post-settlement survival of P. nobilis larvae varies little between the study locations (42-61%). In the case of fan shell, survival doesnt correlate with any of the studied parameters, for Pectinidae species larvae post-settlement presence on the collectors was highly correlated with the fragmentation parameters, namely perimeter lengths and perimeter/area ratio. For these parameters are probably best to describe fragmentation in case of this type of study.

All data in the Integrated Marine Information System (IMIS) is subject to the VLIZ privacy policy Top | Author 


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

MarBEF WIKI

Erasmus Mundus Master of Science in Marine Biodiversity and Conservation (EMBC)
Outreach

Science
Responsive Mode Programme (RMP) - Marie Nordstrom, copyright Aspden Rebecca

WoRMS
part of WoRMS logo

ERMS 2.0
Epinephelus marginatus Picture: JG Harmelin

EurOBIS

Geographic System

Datasets

 


Web site hosted and maintained by Flanders Marine Institute (VLIZ) - Contact data-at-marbef.org