Influence of Salt Front Position on the Occurrence of Uncommon Marine Fishes in the Hudson River Estuary

Six species of marine fishes, the Atlantic cutlassfish Trichiurus lepturus; planehead filefish, Monacanthus hispidus; guaguanche, Sphyraena guachancho; pigfish, Orthopristis chrysoptera; freckled blenny, Hypsoblennius ionthas; and short bigeye, Pristigenys alta, were observed for the first time in t...

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Bibliographic Details
Published in:Estuaries 1992-06, Vol.15 (2), p.251-254
Main Authors: Geoghegan, Paul, Mattson, Mark T., Reichle, James J., Keppel, Roger G.
Format: Article
Language:English
Subjects:
Agnatha. Pisces
Animal and plant ecology
Animal, plant and microbial ecology
Animals
Ballast water
Biological and medical sciences
Brackish
Cutlasses
Demecology
Estuaries
Fresh water
Freshwater fishes
Fundamental and applied biological sciences. Psychology
Game fishes
Hypsoblennius ionthas
Marine fishes
Marine organisms
Monacanthus hispidus
Orthopristis chrysoptera
Pisces
Pristigenys alta
River water
Sphyraena guachancho
Summer
Trichiurus lepturus
Vertebrata
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Summary:Six species of marine fishes, the Atlantic cutlassfish Trichiurus lepturus; planehead filefish, Monacanthus hispidus; guaguanche, Sphyraena guachancho; pigfish, Orthopristis chrysoptera; freckled blenny, Hypsoblennius ionthas; and short bigeye, Pristigenys alta, were observed for the first time in the Hudson River estuary in 1985. Their occurrence was associated with low freshwater runoff and the resulting upstream penetration of the salt front to historic levels. These conditions may have facilitated the dispersal of marine fishes from coastal areas into the lower Hudson River estuary.
ISSN:0160-8347
1559-2758
DOI:10.2307/1352700