Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/9354
Appears in Collections:Aquaculture Journal Articles
Peer Review Status: Refereed
Title: The effect of metal halide and novel green cathode lights on the stress response, innate immunity, eye structure and feeding activity of Atlantic cod, Gadus morhua L.
Authors: Cowan, Mairi
Davie, Andrew
Migaud, Herve
Contact Email: herve.migaud@stir.ac.uk
Keywords: Gadus morhua L.
artificial light
green cathode
stress
lysozyme
retina
feeding activity
Issue Date: Feb-2011
Publisher: Wiley-Blackwell
Citation: Cowan M, Davie A & Migaud H (2011) The effect of metal halide and novel green cathode lights on the stress response, innate immunity, eye structure and feeding activity of Atlantic cod, Gadus morhua L., Aquaculture Research, 42 (Supplement 1), pp. 115-124.
Abstract: High-intensity constant lighting is routinely used for photoperiod manipulation in the aquaculture industry in order to prevent early maturation. The potential welfare impacts of this technology, however, have not been extensively studied to date, and with the implementation of more efficient narrow bandwidth lighting technologies (cathode, light-emitting diodes), definitions of species-specific sensitivities are becoming essential. The objective of this study was to investigate the impact of traditional metal halide (MH) and novel green cathode lighting on the welfare (stress response, innate immunity, retina structure, feeding activity) and light perception of Atlantic cod. The results indicated that although acute responses to light were observed, there were no clear significant long-term effects of any of the lighting treatments on the stress levels (plasma cortisol, glucose), innate immune function (lysozyme activity), retina structure and population feeding activity (acute decline under all light treatments, most pronounced in fish exposed to higher illumination, but normal feeding activity was resumed within 8 days following light onset). Regarding light perception, interestingly, even when subjected to high-intensity constant lighting (MH mean tank intensity: 16.6 W m-2), cod still demonstrated a day-night rhythm in melatonin release, which suggests perception of the overlying ambient photoperiod.
Type: Journal Article
URI: http://hdl.handle.net/1893/9354
DOI Link: http://dx.doi.org/10.1111/j.1365-2109.2010.02664.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 (Machrihanish)
Aquaculture
Aquaculture

Files in This Item:
File Description SizeFormat 
cowandaviemigaud_AR_2011.pdf584.58 kBAdobe PDFUnder Embargo until 31/12/2999     Request a copy

Note: If any of the files in this item are currently embargoed, you can request a copy directly from the author by clicking the padlock icon above. However, this facility is dependant on the depositor still being contactable at their original email address.

This item is protected by original copyright



Items in the Repository are protected by copyright, with all rights reserved, unless otherwise indicated.

If you believe that any material held in STORRE infringes copyright, please contact library@stir.ac.uk providing details and we will remove the Work from public display in STORRE and investigate your claim.