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

McCosker, John E.; Dawson, C. E.

doi:10.1007/bf00390639

Cited by 40 publications

(26 citation statements)

References 19 publications

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“…The fact that these fish were parasitized by A. hastatus also supports the possibility that this parasite species was carried into the Pacific through the Panama Canal by its host, E. brasilianus, native to the Caribbean Sea (see Deckert and Greenfield 1987). Consistent with this hypothesis, it is also possible that E. brasilianus has been in direct contact with other gerreid species such as D. peruvianus (originally dispersed in the Pacific) and G. cinereus (occurring naturally in the Atlantic), which have previously been reported in the Gatun Lake and the Pacific entrance of the Panama Canal (i.e., Miraflores Lake) (see McCosker and Dawson 1975;Panama Canal Authority 2004). Although these gerreid species from the Pacific coast of Panama have not yet been reported as hosts of Aristocleidus species, the occurrence of A. hastatus and A. lamothei on these same host species from the Pacific coast of the state of Guerrero, in Mexico, supports this hypothesis.…”

Section: Discussionsupporting

confidence: 55%

Interoceanic occurrence of species of Aristocleidus Mueller, 1936 (Monogenoidea: Dactylogyridae) parasitizing the gills of gerreid fishes in the Neotropics

2009

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During investigations of fish parasites in the Neotropics (including the state of Veracruz and the Yucatán Peninsula in the Gulf of Mexico, the Chautengo Lagoon on the Pacific coast of the state of Guerrero in Mexico, and Lake Gatun in the Panama Canal), three monogenoidean (Dactylogyridae) species were found parasitizing the gills of gerreids (Gerreidae): Aristocleidus hastatus Mueller, 1936, was recovered from Eugerres plumieri (Cuvier) and Diapterus auratus Ranzani in Veracruz, from D. auratus and Diapterus rhombeus (Cuvier) in Yucatán, from Eugerres brasilianus (Cuvier) in Panama (all new hosts and geographical records), and from D. peruvianus (Cuvier) and Gerres cinereus (Walbaum) in Guerrero; Aristocleidus lamothei Kritsky and Mendoza-Franco, 2008, was recovered from E. plumieri in Veracruz and from D. rhombeus in Yucatan (new hosts and geographical records), and Aristocleidus sp. was recovered from G. cinereus in Guerrero. Results from this study suggest that species of Aristocleidus exhibit wide host specificity within gerreid fishes and that geminate species within this parasite genus may have originated with the formation of the Isthmus of Panama (3.1 to 3.5 ma). Evidence is also presented suggesting the potential role of the Panama Canal as a passageway allowing the interoceanic dispersal of Aristocleidus species across the isthmus.

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Section: Discussionsupporting

confidence: 55%

Interoceanic occurrence of species of Aristocleidus Mueller, 1936 (Monogenoidea: Dactylogyridae) parasitizing the gills of gerreid fishes in the Neotropics

2009

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“…Nine species of euryhaline fish are known to have crossed through the fresh water of the Canal, but only one is known to have established reproductive populations on the other side (McCosker & Dawson 1975, Rubinoff & Rubinoff 1969. Planktonic organisms and larvae of benthic or pelagic ones may be transiting the Isthmus through ballast water of ships (Chesher 1968).…”

Section: Isolation Between Ocean Biotamentioning

confidence: 99%

The Great American Schism: Divergence of Marine Organisms After the Rise of the Central American Isthmus

Lessios

2008

Annu. Rev. Ecol. Evol. Syst.

476

494

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After a 12-million-year (My) process, the Central American Isthmus was completed 2.8 My ago. Its emergence affected current flow, salinity, temperature, and primary productivity of the Pacific and the Atlantic and launched marine organisms of the two oceans into independent evolutionary trajectories. Those that did not go extinct have diverged. As no vicariant event is better dated than the isthmus, molecular divergence between species pairs on its two coasts is of interest. A total of 3 8 regions of DNA have been sequenced in 9 clades of echinoids, 38 of crustaceans, 42 of fishes, and 26 of molluscs with amphi-isthmian subclades. Of these, 34 are likely to have been separated at the final stages of Isthmus completion, 73 split earlier and 8 maintained post-closure genetic contact. Reproductive isolation has developed between several isolates, but is complete in only the sea urchin Diadema. Adaptive divergence can be seen in life history parameters. Lower primary productivity in the Caribbean has led to the evolution of higher levels of maternal provisioning in marine invertebrates. 63

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“…However, although the Southern Lagoon was partially drained into the Pacific approach in February 2006 and in January 2008, we did not recover any crabs in our collecting units at this site. Perhaps this is because the drainage occurred from the bottom layers of the lagoon, which are anoxic and highly sulfurous (McCosker and Dawson 1975;pers. obs.…”

Section: Discussionmentioning

confidence: 99%

Localized invasion of the North American Harris mud crab, Rhithropanopeus harrisii, in the Panama Canal: implications for eradication and spread

et al. 2008

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As the rate of biological invasions continues to increase, a growing number of aquatic introduced species are becoming globally widespread. Despite this ubiquitous phenomenon, rarely do we discover aquatic invaders early enough to allow the possibility of eradication. Recently, the North American Harris mud crab (Rhithropanopeus harrisii) was found in the waters adjacent to the Panama Canal and herein we provide an assessment of the crab's distribution in Panama to evaluate the possibility of eradication. Using salinity tolerance experiments, we also evaluate the potential for further spread of this crab within the Canal. Our results suggest that populations of R. harrisii are currently limited to two manmade lagoons which are adjacent to the Panama Canal. Our experiments suggest that both juvenile and adult R. harrisii can survive in salinities found outside its current range in Panama. Although it is difficult to predict the potential for future spread and impacts in Panama, current management strategies could reduce the probability for spread locally as well as elsewhere in the world given the intensity of shipping in this region. The current containment of this invader suggests that a localized eradication may be possible.

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

Cited by 40 publications

References 19 publications

Interoceanic occurrence of species of Aristocleidus Mueller, 1936 (Monogenoidea: Dactylogyridae) parasitizing the gills of gerreid fishes in the Neotropics

Interoceanic occurrence of species of Aristocleidus Mueller, 1936 (Monogenoidea: Dactylogyridae) parasitizing the gills of gerreid fishes in the Neotropics

The Great American Schism: Divergence of Marine Organisms After the Rise of the Central American Isthmus

Localized invasion of the North American Harris mud crab, Rhithropanopeus harrisii, in the Panama Canal: implications for eradication and spread

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