Marine Biology

, Volume 30, Issue 4, pp 343–351 | Cite as

Biotic passage through the Panama Canal, with particular reference to fishes

  • J. E. McCosker
  • C. E. Dawson


The effectiveness of the Gatun Lake fresh-water barrier to fish migration of the Panama Canal was examined, based on literature records and recent collections. Six species have migrated to the Pacific and three to the Atlantic Oceans. New records include: Hypleurochilus aequipinnis, Barbulifer ceuthoecus and Oostethus lineatus of Atlantic origin, and Gnathanodon, speciosus of Pacific origin. The majority of Atlantic migrants are known in the Pacific only from the Miraflores Third Lock, a unique ectogenic meromictic lake attached to the Pacific entrance of the canal. The hydrography and biota (including Atlantic algal and crustacean species previously unknown as canal migrants) of the lake are discussed. It is presumed that certain fish migrants transited the canal by associating with fouling material on the underside of ships. The euryhaline species, H. aequipinnis, Lupinoblennius dispar, Lophogobius cyprinoides and Omobranchus punctatus survived in freshwater (0.0‰S) for periods longer than réquired for ship transit of the canal (ca. 8h). The stenohaline migrant Gobiosoma nudum died after 2 h in freshwater, but survived more than 50 h at 2.5‰S. Plans to increase Panama Canal ship transits through the pumping of seawater into Gatún Lake might remove the biological barrier and allow the migration of euryhaline and stenohaline species. We find those plans unwise, and the potential consequences dangerous.


Migration Potential Consequence Atlantic Ocean Fish Migrant Crustacean Species 
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Literature Cited

  1. Almeida, V.: New records of tidepool fishes from Brazil. Papéis Dep. Zool. S Paulo 26, 187–191 (1973)Google Scholar
  2. Anonymous: Resolution 5, Annual meeting of the American Society of Ichthyologists and Herpetologists. Copeia 1973 (4) 838–839 (1973)Google Scholar
  3. Bayer, F.M., G.L. Voss and C.R. Robins: Bioenvironmental and radiological safety feasibility studies — Atlantic-Pacific Interoceanic Canal. Report on the marine fauna and benthic shelf-slope communities of the isthmian region, 311 pp. Miami: University of Miami, Rosenstiel School of Marine and Atmospheric Science 1970Google Scholar
  4. Böhlke, J.E. and C.C.G. Chaplin: Fishes of the Bahamas and adjacent tropical waters 711 pp. Wynnewood, Pa.: Livingston 1968Google Scholar
  5. Bozniak, E.G., N.S. Schanen, B.C. Parker and C.M. Keenan: Limological features of a tropical meromictic lake. Hydrobiologia 34 (3–4), 524–532 (1969)Google Scholar
  6. Breder, C.M., Jr.: The fishes of Barro Colorado, Gatun Lake, Panama. Zoologica, N.Y. 9 (16), 565–572 (1933)Google Scholar
  7. Briggs, J.C.: The East Pacific Barrier and the distribution of shore fishes. Evolution, Lancaster, Pa. 15, 545–554 (1961)Google Scholar
  8. —: The sea-level Panama Canal: potential biological catastrophe. BioSci. 19, 44–47 (1969)Google Scholar
  9. Chesher, R.H.: Transport of marine plankton through the Panama Canal. Limnol. Oceanogr. 13, 387–388 (1968)Google Scholar
  10. Chickering, A.M.: An Atlantic pipefish caught in transit through the Panama Canal. Copeia 1930 (4), 85–86 (1930)Google Scholar
  11. Dawson, C.E.: A Mississippi population of the opossum pipefish, Oostethus lineatus (Syngnathidae). Copeia 1970 (4), 772–773, (1970a)Google Scholar
  12. —: The Caribbean Atlantic blenny Lupinoblennius dispar (Tribe: Blenniini), with observations on a Pacific population. Proc. biol. Soc. Wash. 83, 273–286 (1970b)Google Scholar
  13. —: A redescription of Lophogobius cristulatus Ginsburg (Pisces: Gobiidae) with notes on L. cyprinoides (Pallas). Proc. biol. Soc. Wash. 84, 371–384 (1972)Google Scholar
  14. —: Occurrence of an exotic eleotrid fish in Panamá with discussion of probable origin and mode of introduction. Copeia 1973 (1), 141–144 (1973)Google Scholar
  15. Glynn, P.W.: Observations on the ecology of the Caribbean and Pacific coasts of Panamá. Bull. biol. Soc. Wash. 1972 (2), 13–30 (1972)Google Scholar
  16. Hildebrand, S.F.: The tarpon in the Panama Canal. Scient. Mon., N.Y. 44, 245–246 (1937)Google Scholar
  17. —: The Panama Canal as a passageway for fishes, with lists and remarks on the fishes and invertebrates observed. Zoologica, N.Y. 24 (3), 15–45 (1939)Google Scholar
  18. Hutchinson, G.E.: A treatise on limnology. Vol. 1. Geography, physics, and chemistry, 1015 pp. New York: J. Wiley 1957Google Scholar
  19. Jones, M.L. and C.E. Dawson: Salinity-temperature profiles in the Panama Canal locks. Mar. Biol. 21, 86–90 (1973)Google Scholar
  20. McCosker, J.E.: A new species of Parapercis (Pisces: Mugiloididae) from the Juan Fernández Islands. Copeia 1971 (4), 682–686 (1971)Google Scholar
  21. Menzies, R.J.: Transport of marine life between oceans through the Panama Canal. Nature, Lond. 220 (5169), 802–803 (1968)Google Scholar
  22. Miller, R.R.: Geographical distribution of Central American freshwater fishes. Copeia 1966 (4), 771–810 (1966)Google Scholar
  23. Newman, W.A.: The National Academy of Science Committee on the ecology of the interoceanic canal. Bull. biol. Soc. Wash. 1972 (2), 247–259 (1972)Google Scholar
  24. Randall, J.E.: The West Indian bleniid fishes of the genus Hypleurochilus, with the description of a new species. Proc. biol. Soc. Wash. 79, 57–72 (1966)Google Scholar
  25. Rosenblatt, R.H., J.E. McCosker and I. Rubinoff: Indo-west Pacific fishes from the Gulf of Chiriqui, Panama. Contr. Sci. 234 1–18 (1972)Google Scholar
  26. Rubinoff, I.: Central American sea-level canal: possible biological effects. Science, N.Y. 161, 857–861 (1968)Google Scholar
  27. —: The sea-level canal controversy. Biol. Conserv. 3, 33–36 (1970)CrossRefGoogle Scholar
  28. Rubinoff, R.W. and I. Rubinoff: Interoceanic colonization of a marine goby through the Panama Canal. Nature, Lond. 217 (5127), 476–478 (1968)Google Scholar
  29. ——: Observations on the migration of a marine goby through the Panama Canal. Copeia 1969 (2), 395–397 (1969)Google Scholar
  30. Sheffey, J.P.: When Caribbean and Pacific waters mix. Science, N.Y. 162, p. 1329 (1968)Google Scholar
  31. Springer, V.G.: Resolution on the Panama Canal. Science, N.Y. 182, p. 336 (1973)Google Scholar
  32. Springer, V.G. and M.F. Gomon: Revision of the blenniid fish genus Omobranchus, with descriptions of three new species and notes on other species of the tribe Omobranchini. Smithsonian Contr. Zool. (In press)Google Scholar
  33. Zaret, T.M. and R.T. Paine: Species introduction in a tropical lake. Science N.Y. 182, 449–455 (1973)Google Scholar

Copyright information

© Springer-Verlag 1975

Authors and Affiliations

  • J. E. McCosker
    • 1
  • C. E. Dawson
    • 2
  1. 1.Steinhart AquariumCalifornia Academy of SciencesSan FranciscoUSA
  2. 2.Gulf Coast Research Laboratory MuseumOcean SpringsUSA

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