Growth and post-harvest quality of selected Pacific oysters (Crassostrea gigas) cultured in Kachemak Bay, Alaska, and Puget Sound, Washington, in October of 2009 and June of 2010
Thesis (M.S.) University of Alaska Fairbanks, 2012 The primary objective of this project was to evaluate the growth, biochemical and fatty acid composition, physical and shell characteristics, and basic reproductive development of families of Pacific oysters (Crassostrea gigas) from the USDA-funded...
Main Author: | |
---|---|
Other Authors: | , , , |
Format: | Thesis |
Language: | English |
Published: |
2012
|
Subjects: | |
Online Access: | http://hdl.handle.net/11122/8466 |
id |
ftunivalaska:oai:scholarworks.alaska.edu:11122/8466 |
---|---|
record_format |
openpolar |
spelling |
ftunivalaska:oai:scholarworks.alaska.edu:11122/8466 2023-05-15T15:58:22+02:00 Growth and post-harvest quality of selected Pacific oysters (Crassostrea gigas) cultured in Kachemak Bay, Alaska, and Puget Sound, Washington, in October of 2009 and June of 2010 Thomas, Stuart Rendell Oliveira, Alexandra RaLonde, Ray Eckert, Ginny Langdon, Chris 2012-05 http://hdl.handle.net/11122/8466 en_US eng http://hdl.handle.net/11122/8466 Program in Fisheries Division Pacific oyster Alaska Kachemak Bay Growth Quality Washington (State) Puget Sound Thesis ms 2012 ftunivalaska 2023-02-23T21:37:04Z Thesis (M.S.) University of Alaska Fairbanks, 2012 The primary objective of this project was to evaluate the growth, biochemical and fatty acid composition, physical and shell characteristics, and basic reproductive development of families of Pacific oysters (Crassostrea gigas) from the USDA-funded Molluscan Broodstock Program (MBP) planted in suspended culture in Kachemak Bay (KB), Alaska, and at an intertidal site in Thorndyke Bay (TB), Puget Sound, Washington. The MBP selects oysters to improve yields, growth, and survival, but little is known about the effects of selective breeding on other biological characteristics of selected oysters. Shell and meat characteristics of oysters from each of the seven highest-yielding MBP families were compared with those from non-selected control families at each site, which were sampled in October of 2009 and in June of 2010. Biometric and growth data, proximate compositions, fatty acid compositions, and basic degree of reproductive development were measured and compared by family, site, and sampling time. Selection improved yield, growth, and survival in MBP Cohort 20 oysters over three years of growout at KB. Colder water temperatures at KB relative to TB inhibited reproductive development, altering the biochemical composition of oysters within sites and between sampling times. Oysters grown at KB were slower growing and smaller when compared to TB, but higher in glycogen, Omega-3, and Omega-6 fatty acids (particularly docosahexaenoic acid: 22:6 Omega 3). Different latitudes and culture types were contributing factors for observed differences in growth, physiology, and composition, resulting in characteristically unique oysters from either site. Thesis Crassostrea gigas Kachemak Pacific oyster Alaska University of Alaska: ScholarWorks@UA Fairbanks Pacific |
institution |
Open Polar |
collection |
University of Alaska: ScholarWorks@UA |
op_collection_id |
ftunivalaska |
language |
English |
topic |
Pacific oyster Alaska Kachemak Bay Growth Quality Washington (State) Puget Sound |
spellingShingle |
Pacific oyster Alaska Kachemak Bay Growth Quality Washington (State) Puget Sound Thomas, Stuart Rendell Growth and post-harvest quality of selected Pacific oysters (Crassostrea gigas) cultured in Kachemak Bay, Alaska, and Puget Sound, Washington, in October of 2009 and June of 2010 |
topic_facet |
Pacific oyster Alaska Kachemak Bay Growth Quality Washington (State) Puget Sound |
description |
Thesis (M.S.) University of Alaska Fairbanks, 2012 The primary objective of this project was to evaluate the growth, biochemical and fatty acid composition, physical and shell characteristics, and basic reproductive development of families of Pacific oysters (Crassostrea gigas) from the USDA-funded Molluscan Broodstock Program (MBP) planted in suspended culture in Kachemak Bay (KB), Alaska, and at an intertidal site in Thorndyke Bay (TB), Puget Sound, Washington. The MBP selects oysters to improve yields, growth, and survival, but little is known about the effects of selective breeding on other biological characteristics of selected oysters. Shell and meat characteristics of oysters from each of the seven highest-yielding MBP families were compared with those from non-selected control families at each site, which were sampled in October of 2009 and in June of 2010. Biometric and growth data, proximate compositions, fatty acid compositions, and basic degree of reproductive development were measured and compared by family, site, and sampling time. Selection improved yield, growth, and survival in MBP Cohort 20 oysters over three years of growout at KB. Colder water temperatures at KB relative to TB inhibited reproductive development, altering the biochemical composition of oysters within sites and between sampling times. Oysters grown at KB were slower growing and smaller when compared to TB, but higher in glycogen, Omega-3, and Omega-6 fatty acids (particularly docosahexaenoic acid: 22:6 Omega 3). Different latitudes and culture types were contributing factors for observed differences in growth, physiology, and composition, resulting in characteristically unique oysters from either site. |
author2 |
Oliveira, Alexandra RaLonde, Ray Eckert, Ginny Langdon, Chris |
format |
Thesis |
author |
Thomas, Stuart Rendell |
author_facet |
Thomas, Stuart Rendell |
author_sort |
Thomas, Stuart Rendell |
title |
Growth and post-harvest quality of selected Pacific oysters (Crassostrea gigas) cultured in Kachemak Bay, Alaska, and Puget Sound, Washington, in October of 2009 and June of 2010 |
title_short |
Growth and post-harvest quality of selected Pacific oysters (Crassostrea gigas) cultured in Kachemak Bay, Alaska, and Puget Sound, Washington, in October of 2009 and June of 2010 |
title_full |
Growth and post-harvest quality of selected Pacific oysters (Crassostrea gigas) cultured in Kachemak Bay, Alaska, and Puget Sound, Washington, in October of 2009 and June of 2010 |
title_fullStr |
Growth and post-harvest quality of selected Pacific oysters (Crassostrea gigas) cultured in Kachemak Bay, Alaska, and Puget Sound, Washington, in October of 2009 and June of 2010 |
title_full_unstemmed |
Growth and post-harvest quality of selected Pacific oysters (Crassostrea gigas) cultured in Kachemak Bay, Alaska, and Puget Sound, Washington, in October of 2009 and June of 2010 |
title_sort |
growth and post-harvest quality of selected pacific oysters (crassostrea gigas) cultured in kachemak bay, alaska, and puget sound, washington, in october of 2009 and june of 2010 |
publishDate |
2012 |
url |
http://hdl.handle.net/11122/8466 |
geographic |
Fairbanks Pacific |
geographic_facet |
Fairbanks Pacific |
genre |
Crassostrea gigas Kachemak Pacific oyster Alaska |
genre_facet |
Crassostrea gigas Kachemak Pacific oyster Alaska |
op_relation |
http://hdl.handle.net/11122/8466 Program in Fisheries Division |
_version_ |
1766394098930941952 |