Skip to main content

Free Content Position and monitoring of anti-trawling reefs in the Cape of Trafalgar (Gulf of Cadiz, SW Spain)

Download Article:
 Download
(PDF 202.435546875 kb)
 

Abstract:

Illegal trawling was perceived in protected areas of the Gulf of Cadiz (southwest of Spain). A method of studying the nature of the seabed and identifying the paths taken by the illegal trawl ships is hereby described. So, the shape and minimum number of indispensable barriers necessary to guarantee an inoperative status for these illegal trawling vessel are defined. A new type of artificial reef is presented which is both more efficient and cost effective in terms of its construction and installation. This model has been under experimentation in the area of Cape Trafalgar, where 610 units, grouped in 11 barriers were deployed. Side-scan sonar has been used over 1.5 yrs to test the status of these barriers after their implementation. The final results of this experiment indicate that, after the first 6 mo, all illegal trawling activity had disappeared. Although the displacement of some reefs was established, these movements were not enough to reopen new trawling paths. Nevertheless, in spite of these good results, the damage to the benthic diversity is not yet resolved.

Document Type: Research Article

Publication date: 2000-09-01

More about this publication?
  • The Bulletin of Marine Science is dedicated to the dissemination of high quality research from the world's oceans. All aspects of marine science are treated by the Bulletin of Marine Science, including papers in marine biology, biological oceanography, fisheries, marine affairs, applied marine physics, marine geology and geophysics, marine and atmospheric chemistry, and meteorology and physical oceanography.
  • Editorial Board
  • Information for Authors
  • Subscribe to this Title
  • Terms & Conditions
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free ContentFree content
  • Partial Free ContentPartial Free content
  • New ContentNew content
  • Open Access ContentOpen access content
  • Partial Open Access ContentPartial Open access content
  • Subscribed ContentSubscribed content
  • Partial Subscribed ContentPartial Subscribed content
  • Free Trial ContentFree trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect 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