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Conservation Genetics

, Volume 9, Issue 1, pp 65–71 | Cite as

The tip of the tail: molecular identification of seahorses for sale in apothecary shops and curio stores in California

  • Jon G. Sanders
  • Jennifer E. Cribbs
  • Harris G. Fienberg
  • Greg C. Hulburd
  • Laure S. Katz
  • Stephen R. Palumbi
Research Article

Abstract

Millions of seahorses a year are traded internationally, with many eventually sold at retail shops as curios, as aquarium pets, and especially for use in traditional medicine. The entire genus is now protected by CITES, but conservation measures have been limited in part by difficulties with species identification and incomplete understanding of trade patterns. In this study, we use molecular techniques to make species- and population-level identifications of 56 seahorses sampled from both traditional medicine and curio shops in San Francisco and central California. Seahorses from medicinal sources included unexpectedly large numbers of the eastern Pacific Hippocampus ingens, a species poorly protected by current CITES export recommendations. Curio shops were dominated by H. barbouri, a spiny species that has been reportedly confused in trading records as H. histrix. Specific populations of origin could be inferred for several species through comparison with publicly available phylogeographic data. Our results underscore the strengths and weaknesses of current recommended export regulations, and we suggest that molecular forensics can help in verifying trade documentation and developing more effective conservation measures.

Keywords

Molecular forensics Conservation Seahorses Hippocampus ingens Phylogeography 

Notes

Acknowledgments

We thank Amanda Vincent and Sara Lourie for access to specimens; A. Vincent, S. Lourie and Healy Hamilton for discussion; and two anonymous reviewers for comments. Specimen collection and analysis were initiated by the 2005 Molecular Ecology class at Stanford University, and we thank Tom Oliver, David Garfield, Ashley Maloney, and Luke Hunt for their help. Supported by grants to SRP from the David and Lucile Packard Foundation and the Gordon and Betty Moore Foundation. This work is a contribution of the Partnership for Interdisciplinary Study of the Coastal Oceans.

References

  1. Baker CS, Palumbi SR (1994) Which whales are hunted? A molecular genetic approach to monitoring whaling. Science 265(5178):1538–153PubMedCrossRefGoogle Scholar
  2. Baker CS, Cipriano F, Palumbi SR (1996) Molecular genetic identification of whale and dolphin products from commercial markets in Korea and Japan. Mol Ecol 5(5):671–685Google Scholar
  3. Baum JK, Vincent ACJ (2005) Magnitude and inferred impacts of the seahorse trade in Latin America. Environ Conservat 32:305–319CrossRefGoogle Scholar
  4. Baum JK, Meeuwig JJ, Vincent ACJ (2003) Bycatch of lined seahorses (Hippocampus erectus) in a Gulf of Mexico shrimp trawl fishery. Fish Bull 101(4):721–731Google Scholar
  5. Casey SP, Hall HJ, Stanley HF, Vincent ACJ (2004) The origin and evolution of seahorses (genus Hippocampus): a phylogenetic study using the cytochrome b gene of mitochondrial DNA. Mol Phylogenet Evol 30:261–272PubMedCrossRefGoogle Scholar
  6. CITES (1973) Convention on International Trade in Endangered Species of Wild Fauna and Flora. http://www.cites.org/eng/disc/text.shtml. Cited 7 August 2006
  7. CITES (2002a) Amendments to Appendices I and II of the Convention adopted by the Conference of the Parties at its 12th meeting, Santiago, Chile, 3 to 15 November 2002. http://www.cites.org/eng/cop/12/Adopted_Amendments.pdf. Cited 7 August 2006
  8. CITES (2002b) Consideration of proposals for amendment of Appendices I and II. http://www.cites.org/eng/cop/12/prop/E12-P37.pdf. Cited 7 August 2006
  9. CITES (2004) Notification to the parties-Trade in seahorses-Implementation of decision 12.54. http://www.cites.org/eng/notif/2004/033.pdf. Cited 7 August 2006
  10. Curtis JMR, Vincent ACJ (2006) Life history of an unusual marine fish: survival, growth and movement patterns of Hippocampus guttulatus Cuvier 1829. J Fish Biol 68:707–733CrossRefGoogle Scholar
  11. Foster SJ, Vincent ACJ (2005) Enhancing sustainability of the international trade in seahorses with a single minimum size limit. Conserv Biol 19:1044–1050CrossRefGoogle Scholar
  12. Foster SJ, Vincent ACJ (2004) Life history and ecology of seahorses: Implications for conservation and management. J Fish Biol 65:1–61CrossRefGoogle Scholar
  13. Giles BG, Truong SK, Hoang DH, Vincent ACJ (2006) The catch and trade of seahorses in Vietnam. Biodivers Conserv 15(8):2497–2513 CrossRefGoogle Scholar
  14. Grey M, Blais A, Vincent ACJ (2005) Magnitude and trends of marine fish curio imports to the USA. Oryx 39(4):1–8CrossRefGoogle Scholar
  15. IUCN (World Conservation Union) (2006) 2006 IUCN red list of threatened species. http://www.redlist.org. Cited June 8 2006
  16. Lourie SA, Vincent ACJ (2004a) A marine fish follows Wallace’s line: the phylogeography of the three-spot seahorse (Hippocampus trimaculatus, Syngnathidae, Teleostei) in Southeast Asia. J Biogeography 31:1975–1985CrossRefGoogle Scholar
  17. Lourie SA, Vincent ACJ (2004b) Using biogeography to set priorities in marine conservation. Conserv Biol 18:1004–1020CrossRefGoogle Scholar
  18. Lourie SA, Green DM, Vincent ACJ (2005) Dispersal, habitat differences, and comparative phylogeography of Southeast Asian seahorses (Syngnathidae: Hippocampus). Mol Ecol 14:1073–1094PubMedCrossRefGoogle Scholar
  19. Lourie SA, Foster SJ, Cooper EWT, Vincent ACJ. (2004) A guide to the identification of seahorses-Project Seahorse and TRAFFIC North America. Boston University and the World Wildlife Fund, Washington D.CGoogle Scholar
  20. Lourie SA, Pritchard JC, Casey SP, Truong SK, Hall HJ, Vincent ACJ (1999) The taxonomy of Vietnam’s exploited seahorses (family Syngnathidae). Biol J Linn Soc 66:231–25CrossRefGoogle Scholar
  21. Martin-Smith KM, Samoilys MA, Meeuwig JJ, Vincent ACJ (2004) Collaborative development of management options for an artisanal fishery for seahorses in the Central Philippines. Ocean Coast Manage 47:165–193CrossRefGoogle Scholar
  22. McMillan WO, Palumbi SR (1997) Rapid rate of control-region evolution in Pacific butterflyfishes (Chaetodontidae). J Mol Evol 45(5):473–484PubMedCrossRefGoogle Scholar
  23. Meeuwig J, Samoilys MA, Erediano J, Hall H (2003) Fishers’ perceptions on the seahorse fishery in Central Philippines: interactive approaches and an evaluation of results. In: Haggan N, Brignall C,Wood L (eds) Putting fishers’ knowledge to work FCRR, pp 208Google Scholar
  24. Perante NC, Pajaro MG, Meeuwig JJ, Vincent ACJ (2002) Biology of a seahorse species, Hippocampus comes in the Central Philippines. J Fish Biol 60:821–837CrossRefGoogle Scholar
  25. Schneider S,Roessli D, Excoffier L (2000) Arlequin: a software for population genetics data analysis. Ver 2.000. Genetics and Biometry Lab, Dept. of Anthropology, University of GenevaGoogle Scholar
  26. Teske PR, Cherry MI, Matthee CA (2003) Population genetics of the endangered Knysna seahorse, Hippocampus capensis. Mol Ecol 12:1703–1715PubMedCrossRefGoogle Scholar
  27. Teske PR, Cherry MI, Matthee CA (2004) The evolutionary history of seahorses (Syngnathidae: Hippocampus): molecular data suggest a West Pacific origin and two invasions of the Atlantic Ocean. Mol Phylogenet Evol 30:275–286CrossRefGoogle Scholar
  28. UNEP-WCMC (2006) CITES Trade Database. http://www.unep-wcmc.org/citestrade/. Cited 27 July 2006
  29. Vincent ACJ (1996) The international trade in seahorses. TRAFFIC International, CambridgeGoogle Scholar

Copyright information

© Springer Science+Business Media, Inc. 2007

Authors and Affiliations

  • Jon G. Sanders
    • 1
  • Jennifer E. Cribbs
    • 2
  • Harris G. Fienberg
    • 3
  • Greg C. Hulburd
    • 3
  • Laure S. Katz
    • 1
  • Stephen R. Palumbi
    • 3
  1. 1.School of Earth SciencesStanford UniversityStanfordUSA
  2. 2.Department of PsychologyStanford UniversityStanfordUSA
  3. 3.Department of Biological Sciences and Hopkins Marine StationStanford UniversityPacific GroveUSA

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