Journal of Coastal Conservation

, Volume 21, Issue 2, pp 311–316 | Cite as

Anchoring damages to benthic organisms in a subtropical scuba dive hotspot

  • Vinicius J. GiglioEmail author
  • Maria L. F. Ternes
  • Thiago C. Mendes
  • Cesar A. M. M. Cordeiro
  • Carlos E. L. Ferreira


The physical damages to benthic organisms caused by boat anchorages were assessed in the Arraial do Cabo Marine Extractive Reserve (ACMER), Brazil. It is one of the most visited scuba diving sites along the southwestern Atlantic. Through underwater visual observations, we analyzed if benthic organisms were damaged by anchors and/or anchor cabling at two dive sites. A total of 112 anchorages were sampled. Damages to benthic organisms were observed 139 times, mainly affecting epilithic algal matrix, the zoanthid Palythoa caribaeorum, and the fire coral Millepora alcicornis. Damages caused by anchor cables were significantly higher than those caused by anchors at one site. A significant difference between benthic organisms damaged was observed only for P. caribaeorum, caused by the anchor’s cable. We present evidence that, at current visitation levels, anchors are a relevant stressor to benthic organisms at dive sites in ACMER.


Subtropical reefs Scuba diving management Recreational diving Tourism management Marine protected area 



We thank the diving operators association - Associação das Operadoras de Mergulho de Arraial do Cabo and the Arraial do Cabo marine extractive reserve - ICMBio (through Viviane Lasmar and Rafaela Farias) for research permits and support. C. Garland for English editing. The first author was supported by the Brazilian Ministry of Science and Technology (CNPq). TCM was supported by FAPERJ (postdoc grant # E-26/202.858/2016). CELF was supported by grants from CNPq and FAPERJ.


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Copyright information

© Springer Science+Business Media Dordrecht 2017

Authors and Affiliations

  • Vinicius J. Giglio
    • 1
    • 2
    Email author
  • Maria L. F. Ternes
    • 3
  • Thiago C. Mendes
    • 2
    • 4
  • Cesar A. M. M. Cordeiro
    • 2
  • Carlos E. L. Ferreira
    • 2
  1. 1.Programa de Pós-Graduação em EcologiaUniversidade Federal do Rio de JaneiroRio de JaneiroBrazil
  2. 2.Reef Systems Ecology and Conservation LabUniversidade Federal FluminenseNiteróiBrazil
  3. 3.Programa de Pós-Graduação em ZoologiaUniversidade Estadual de Santa CruzIlhéusBrazil
  4. 4.Departamento de EcologiaUniversidade Federal do Rio de JaneiroRio de JaneiroBrazil

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