Memorial University DAI: Age validation and comparison of growth rates in behaviourally and geographically distinct population of cunner, Tautogolabrus adspersus

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Title	Age validation and comparison of growth rates in behaviourally and geographically distinct population of cunner, Tautogolabrus adspersus
Author	Chiasson, Wayne B., 1968-
Description	Thesis (M.Sc.)--Memorial University of Newfoundland, 1995. Biology
Date	1995
Pagination	109 leaves : ill.
Subject	Tautogolabrus adspersus--Growth
Degree	M.Sc.
Degree Grantor	Memorial University of Newfoundland. Dept. of Biology
Discipline	Biology
Language	Eng
Notes	Bibliography: leaves 104-109.
Abstract	The occurrence of annuli on sagittal otoliths of the cunner, Tautogolabrus adspersus, were validated by injection with oxytetracycline hydrochloride in a field study. Otoliths were then used to compare growth rates of behaviourally and geographically distinct populations. Territorial males exhibited significantly slower growth than non-territorial males from the same pair spawning population. Although group spawning males had similar rates of growth as did males from the pair spawning population, they did exhibit a negative correlation between length at age and gonadosomatic index (GSI), suggesting a tradeoff between gonadal investment and somatic growth. No such relationship existed for males from the pair spawning population. Females from the two populations grew at similar rates and their growth was not correlated with GSI. Newfoundland cunner appear to grow as fast as cunner from farther south where they have a longer growing season and higher temperatures. This suggests that some form of growth compensation occurs in Newfoundland cunner.
Type	Text
Resource Type	Electronic thesis or dissertation
Format	Image/jpeg; Application/pdf
Source	Paper copy kept in the Centre for Newfoundland Studies, Memorial University Libraries
Local Identifier	a1078890
Rights	The author retains copyright ownership and moral rights in this thesis. Neither the thesis nor substantial extracts from it may be printed or otherwise reproduced without the author's permission.
Collection	Electronic Theses and Dissertations
Scanning Status	Completed
PDF File	(6.61 MB) -- http://collections.mun.ca/PDFs/theses/WayneBChiasson.pdf
CONTENTdm file name	29292.cpd