Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/18576
Appears in Collections:Aquaculture Journal Articles
Peer Review Status: Refereed
Title: Ontogenetic changes in location and morphology of chloride cells during early life stages of the Nile tilapia Oreochromis niloticus adapted to fresh and brackish water
Authors: Fridman, Sophie
Bron, James
Rana, Kausik
Contact Email: j.e.bron@stir.ac.uk
Keywords: adaptive mechanisms
development
larvae
mitochondria-rich cells
osmoregulation
salinity
Issue Date: Sep-2011
Publisher: Wiley-Blackwell
Citation: Fridman S, Bron J & Rana K (2011) Ontogenetic changes in location and morphology of chloride cells during early life stages of the Nile tilapia Oreochromis niloticus adapted to fresh and brackish water, Journal of Fish Biology, 79 (3), pp. 597-614.
Abstract: Ontogenetic changes in the location, size, density and morphology of chloride cells in the Nile tilapia Oreochromis niloticus adapted to fresh and brackish water are described using Na+/K+-ATPase immunohistochemistry, light microscopy (LM), scanning electron microscopy (SEM) and confocal scanning laser microscopy (CSLM). The pattern of chloride cell distribution changed during development under both treatments, with chloride cell density decreasing significantly from hatch to 7 days post-hatch, but appearing on the inner opercular area at 3 days post-hatch and increasing significantly thereafter (P < 0·05). Chloride cells were always denser in fresh- than in brackish-water larvae. In both treatments, chloride cells located on the outer operculum and tail showed a marked increase in size with age, but cells located on the abdominal epithelium of the yolk sac and the inner operculum showed a significant decrease in size (P < 0·05). Chloride cells from brackish-water adapted larvae from 1 day post-hatch onwards were always significantly larger (P < 0·05) than those from freshwater-adapted larvae. SEM revealed structural differences in chloride cell apical morphology according to environmental conditions. There appears to be clearly defined temporal staging of the appearance of adaptive mechanisms that confer an ability to cope with varying environmental conditions during early development.
Type: Journal Article
URI: http://hdl.handle.net/1893/18576
DOI Link: http://dx.doi.org/10.1111/j.1095-8649.2011.03043.x
Rights: The publisher does not allow this work to be made publicly available in this Repository. Please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study.
Affiliation: Aquaculture
Aquaculture
Aquaculture

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