Pelagic larval duration of two diadromous species of Kuhliidae (Teleostei: Percoidei) from Indo-Pacific insular systems

Feutry, Pierre, Valade, Pierre, Ovenden, Jennifer R., Lopez, Pascal Jean and Keith, Philippe (2012) Pelagic larval duration of two diadromous species of Kuhliidae (Teleostei: Percoidei) from Indo-Pacific insular systems. Marine and Freshwater Research, 63 5: 397-402. doi:10.1071/MF11243


Author Feutry, Pierre
Valade, Pierre
Ovenden, Jennifer R.
Lopez, Pascal Jean
Keith, Philippe
Title Pelagic larval duration of two diadromous species of Kuhliidae (Teleostei: Percoidei) from Indo-Pacific insular systems
Journal name Marine and Freshwater Research   Check publisher's open access policy
ISSN 1323-1650
1448-6059
Publication date 2012-01
Year available 2012
Sub-type Article (original research)
DOI 10.1071/MF11243
Volume 63
Issue 5
Start page 397
End page 402
Total pages 6
Place of publication Collingwood, VIC, Australia
Publisher C S I R O
Collection year 2013
Language eng
Abstract Diadromous fish species in the family Kuhliidae are able to colonise freshwater systems in Indo-Pacific islands, but their life cycle and the mechanisms involved in the colonisation of such ecosystems are poorly documented. After validating the daily rate of increment deposition in otoliths of Kuhlia rupestris, we estimated the pelagic larval duration (PLD) of K. rupestris, widely distributed in the Indo-Pacific area, and K. sauvagii, endemic to the Indian Ocean. Median PLD of K. rupestris was significantly longer than that of K. sauvagii (40.6±6.9 and 32.3±3.4 days ( s.d.), respectively), implying that the PLD is probably one factor controlling the extent of distribution range in Kuhlia. Within K. rupestris, individuals from New Caledonia had longer PLDs than those from Ŕunion Island (44.3±6.7 and 37.3±4.7 days (±s.d.) respectively). Further research on larval migration is needed to determine whether this was due to different environmental conditions or is population-specific. Interestingly, the PLD of these Kuhlia species is shorter than the PLD of other tropical diadromous fishes. These results improve our understanding of the dispersal strategies of freshwater fauna, to colonise and persist in tropical islands.
Keyword Diadromy
Endemism
Fish
Larval dispersion
Otolith increment counts
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ
Additional Notes Published online: 4 May 2012.

Document type: Journal Article
Sub-type: Article (original research)
Collections: Non HERDC
School of Biological Sciences Publications
 
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