SciELO - Scientific Electronic Library Online

 
vol.56 número1Exploring an extensive dataset to establish woody vegetation cover and composition in Kruger National Park for the late 1980sVegetation of the eastern communal conservancies in Namibia: I. Phytosociological descriptions índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Servicios Personalizados

Articulo

Indicadores

Links relacionados

  • En proceso de indezaciónCitado por Google
  • En proceso de indezaciónSimilares en Google

Compartir


Koedoe

versión On-line ISSN 2071-0771

Resumen

MALHERBE, Hanlie  y  SAMWAYS, Michael. Rocky shores of a major southern African Marine Protected Area are almost free from intertidal invertebrate alien species. Koedoe [online]. 2014, vol.56, n.1, pp. 01-05. ISSN 2071-0771.

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.

        · texto en Inglés     · Inglés ( pdf )

 

Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License