Cephalorhynchus heavisidii is listed as “data deficient” on the IUCN Red List of Threatened Species. CITES (the Convention on International Trade in Endangered Species of Wild Fauna and Flora) lists Cephalorhynchus heavisidii under Appendix II, meaning that though this species is not necessarily threatened with extinction, its trade must be regulated so that its survival is not jeopardized. Cephalorhynchus heavisidii is vulnerable to harpoons and guns used by humans hunting close to shore, where about 100 are killed annually. Also, entanglement in fishing gear poses a significant threat. In 1983, 67 were caught in nets off Namibia, and 57 off of South Africa. Although overfishing of their primary prey may pose a threat to their survival, little evidence exists to support this claim. As an inshore species, C. heavisidii is susceptible to pollution and boat traffic, and low levels of DDT have been found in some individuals. This species is currently protected from commercial hunting and fishing throughout its geographic range. It is also protected by a 322 km Exclusive Fishery Zone (EFZ) off the coast of South Africa and a 20 km EFZ off the coast of Namibia.
CITES: appendix ii
IUCN Red List of Threatened Species: data deficient
- Reeves, R., E. Crespo, S. Dans, T. Jefferson, L. Karczmarski, K. Laidre, G. O'Corry-Crowe, S. Pedraza, L. Rojas-Braho, E. Secchi, E. Slooten, B. Smith, J. Wang, K. Zhou. 2008. "Cephalorhynchus heavisidii" (On-line). IUCN Red List. Accessed March 14, 2011 at http://www.iucnredlist.org/apps/redlist/details/4161/0.
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