Age validation and comparison of growth rates in behaviourally and geographically distinct population of cunner, Tautogolabrus adspersus
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...
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Memorial University of Newfoundland
1995
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Online Access: | https://research.library.mun.ca/6563/ https://research.library.mun.ca/6563/1/WayneBChiasson.pdf https://research.library.mun.ca/6563/3/WayneBChiasson.pdf |
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ftmemorialuniv:oai:research.library.mun.ca:6563 2023-10-01T03:57:33+02:00 Age validation and comparison of growth rates in behaviourally and geographically distinct population of cunner, Tautogolabrus adspersus Chiasson, Wayne B. 1995 application/pdf https://research.library.mun.ca/6563/ https://research.library.mun.ca/6563/1/WayneBChiasson.pdf https://research.library.mun.ca/6563/3/WayneBChiasson.pdf en eng Memorial University of Newfoundland https://research.library.mun.ca/6563/1/WayneBChiasson.pdf https://research.library.mun.ca/6563/3/WayneBChiasson.pdf Chiasson, Wayne B. <https://research.library.mun.ca/view/creator_az/Chiasson=3AWayne_B=2E=3A=3A.html> (1995) Age validation and comparison of growth rates in behaviourally and geographically distinct population of cunner, Tautogolabrus adspersus. Masters thesis, Memorial University of Newfoundland. thesis_license Thesis NonPeerReviewed 1995 ftmemorialuniv 2023-09-03T06:45:57Z 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. Thesis Newfoundland Memorial University of Newfoundland: Research Repository |
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Memorial University of Newfoundland: Research Repository |
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ftmemorialuniv |
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English |
description |
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. |
format |
Thesis |
author |
Chiasson, Wayne B. |
spellingShingle |
Chiasson, Wayne B. Age validation and comparison of growth rates in behaviourally and geographically distinct population of cunner, Tautogolabrus adspersus |
author_facet |
Chiasson, Wayne B. |
author_sort |
Chiasson, Wayne B. |
title |
Age validation and comparison of growth rates in behaviourally and geographically distinct population of cunner, Tautogolabrus adspersus |
title_short |
Age validation and comparison of growth rates in behaviourally and geographically distinct population of cunner, Tautogolabrus adspersus |
title_full |
Age validation and comparison of growth rates in behaviourally and geographically distinct population of cunner, Tautogolabrus adspersus |
title_fullStr |
Age validation and comparison of growth rates in behaviourally and geographically distinct population of cunner, Tautogolabrus adspersus |
title_full_unstemmed |
Age validation and comparison of growth rates in behaviourally and geographically distinct population of cunner, Tautogolabrus adspersus |
title_sort |
age validation and comparison of growth rates in behaviourally and geographically distinct population of cunner, tautogolabrus adspersus |
publisher |
Memorial University of Newfoundland |
publishDate |
1995 |
url |
https://research.library.mun.ca/6563/ https://research.library.mun.ca/6563/1/WayneBChiasson.pdf https://research.library.mun.ca/6563/3/WayneBChiasson.pdf |
genre |
Newfoundland |
genre_facet |
Newfoundland |
op_relation |
https://research.library.mun.ca/6563/1/WayneBChiasson.pdf https://research.library.mun.ca/6563/3/WayneBChiasson.pdf Chiasson, Wayne B. <https://research.library.mun.ca/view/creator_az/Chiasson=3AWayne_B=2E=3A=3A.html> (1995) Age validation and comparison of growth rates in behaviourally and geographically distinct population of cunner, Tautogolabrus adspersus. Masters thesis, Memorial University of Newfoundland. |
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thesis_license |
_version_ |
1778529059965239296 |