Rocky shores of a major southern African Marine Protected Area are almost free from intertidal invertebrate alien species

Koedoe - African Protected Area Conservation and Science


 
 
Field Value
 
Title Rocky shores of a major southern African Marine Protected Area are almost free from intertidal invertebrate alien species
 
Creator Malherbe, Hanlie Samways, Michael
 
Subject Conservation Marine invasive species, Marine Protected Areas, Rocky shores
Description A major threat to marine ecosystems is the establishment and proliferation of invasive alien species. This study addresses gaps in our knowledge regarding marine alien invertebrate species in the Kogelberg Biosphere Reserve (KBR) and adjacent Betty’s Bay Marine Protected Area (MPA) in the Western Cape of South Africa, together a potentially important area for south-coast marine conservation. Understanding the distribution and geographical expansion of these species is critical for conservation planning. A quantitative systematic survey of the intertidal rocky shore region was undertaken. The mytilid Mediterranean mussel, Mytilus galloprovincialis, and the bryozoan Watersipora subtorquata were the only alien species recorded along the coastline, which included the MPA. The abundance of M. galloprovincialis was significantly higher outside the MPA, and the abundance of W. subtorquata was significantly higher inside the MPA. With only two alien species recorded, the Betty’s Bay MPA and its surroundings support relatively few marine alien species with regards to rocky shore invertebrate biodiversity. Conservation implications: It is important that the Betty’s Bay MPA and its adjacent coastline maintain its current status as an area with relatively few marine alien species. The conservation implications on management require routine surveys of this region to detect early introductions of any additional species.
 
Publisher AOSIS Publishing
 
Contributor
Date 2014-05-23
 
Type info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion — Survey
Format text/html application/octet-stream text/xml application/pdf
Identifier 10.4102/koedoe.v56i1.1206
 
Source Koedoe; Vol 56, No 1 (2014); 5 pages 2071-0771 0075-6458
 
Language eng
 
Relation https://koedoe.co.za/index.php/koedoe/article/view/1206/1626 https://koedoe.co.za/index.php/koedoe/article/view/1206/1627 https://koedoe.co.za/index.php/koedoe/article/view/1206/1628 https://koedoe.co.za/index.php/koedoe/article/view/1206/1625
 
Coverage South coast, South Africa — Abundance
Rights Copyright (c) 2014 Hanlie Malherbe, Michael Samways https://creativecommons.org/licenses/by/4.0