Document Detail


Growth hormone transgenesis does not influence territorial dominance or growth and survival of first-feeding Atlantic salmon Salmo salar in food-limited stream microcosms.
MedLine Citation:
PMID:  21366569     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
This study explored the relative competitive ability and performance of first-feeding growth hormone (GH) transgenic and non-transgenic Atlantic salmon Salmo salar fry under low food conditions. Pair-wise dominance trials indicated a strong competitive advantage for residents of a contested foraging territory. Transgenic and non-transgenic individuals, however, were equally likely to be dominant. Similarly, in stream environments with limited food, the transgene did not influence the growth in mass or survival at high or low fry densities. Fry in low-density treatments, however, performed better than fry in high-density treatments. These results indicate that, under the environment examined, the growth performance of GH-transgenic and non-transgenic S. salar may be similar during first feeding, an intense period of selection in their life history. Similarities in competitive ability and growth performance with wild-type fish suggest that the capacity of transgenic S. salar to establish in natural streams may not be inhibited during early life history.
Authors:
D T R Moreau; I A Fleming; G L Fletcher; J A Brown
Related Documents :
25010189 - Energy drink consumption and impact on caffeine risk.
21144099 - Who is eating where? findings from the socioeconomic status and activity in women (sesa...
17203599 - Coupling of the biochemical composition and calorific content of zooplankters with the ...
18490949 - Polyphasic taxonomy of aspergillus section usti.
18457139 - Food niche overlap among neotropical frugivorous bats in costa rica.
23195209 - On the abundance and distribution of protozoa and their food in a productive freshwater...
3667029 - Use of quantified and frequency indices of vitamin a intake in a case-control study of ...
21452779 - Acrylamide in biological materials and methods of the analytical determination.
19838789 - Local food environments: they're all stocked differently.
Publication Detail:
Type:  Journal Article     Date:  2011-01-26
Journal Detail:
Title:  Journal of fish biology     Volume:  78     ISSN:  1095-8649     ISO Abbreviation:  J. Fish Biol.     Publication Date:  2011 Mar 
Date Detail:
Created Date:  2011-03-03     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0214055     Medline TA:  J Fish Biol     Country:  England    
Other Details:
Languages:  eng     Pagination:  726-40     Citation Subset:  IM    
Copyright Information:
© 2011 The Authors. Journal of Fish Biology © 2011 The Fisheries Society of the British Isles.
Affiliation:
Ocean Sciences Centre, Memorial University of Newfoundland, St. John's, Newfoundland and Labrador, A1C 5S7, Canada.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Spatial association of nest construction by brown trout Salmo trutta.
Next Document:  Reproductive biology of an odacine labrid, Odax pullus.