Occurrence of marine resident tropical eel Anguilla bicolor bicolor in Indonesia

In order to understand the migratory history and habitat use of the tropical anguillid eels Anguilla celebesensis , A. marmorata , and A . bicolor bicolor , the otolith strontium (Sr) and calcium (Ca) concentrations were examined for eels collected in Indonesian waters. In A. bicolor bicolor collect...

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Bibliographic Details
Published in:Marine biology 2010-05, Vol.157 (5), p.1075-1081
Main Authors: Chino, N., Arai, T.
Format: Article
Language:English
Subjects:
Agnatha. Pisces
Anguilla bicolor bicolor
Anguilla celebesensis
Animal and plant ecology
Animal, plant and microbial ecology
Behavior
Biological and medical sciences
Biological research
Biology, Experimental
Biomedical and Life Sciences
Coastal zone
Eels
Fish migration
Fresh water
Freshwater
Freshwater & Marine Ecology
Freshwater lakes
Fundamental and applied biological sciences. Psychology
Habitat utilization
Habitats
Lagoons
Life history
Life Sciences
Marine
Marine & Freshwater Sciences
Marine biology
Microbiology
Mitochondrial DNA
Natural history
Oceanography
Original Paper
Sea water ecosystems
Strontium
Synecology
Varieties
Vertebrates: general zoology, morphology, phylogeny, systematics, cytogenetics, geographical distribution
Zoology
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Summary:In order to understand the migratory history and habitat use of the tropical anguillid eels Anguilla celebesensis , A. marmorata , and A . bicolor bicolor , the otolith strontium (Sr) and calcium (Ca) concentrations were examined for eels collected in Indonesian waters. In A. bicolor bicolor collected in a lagoon, the change in Sr:Ca ratios outside the high Sr:Ca core generally indicated two patterns of habitat residence: (1) constant living in either brackish or sea waters with no freshwater life (25%) and (2) habitat shifts from fresh water to brackish or sea waters (75%). No A. bicolor bicolor had a general life history as a freshwater resident. A. celebesensis and A. marmorata from the uppermost freshwater lake showed freshwater life history patterns. The wide range of otolith Sr:Ca ratios in A. bicolor bicolor indicated that the habitat use of this tropical eel was facultative among fresh, brackish, and marine waters during the growth phase after recruitment to coastal areas similar to that for temperate eels. Thus, the migration of anguillid eels into fresh water is clearly not an obligatory.
ISSN:0025-3162
1432-1793
DOI:10.1007/s00227-009-1388-6