Growth, Reproductive Condition, And Digestive Tubule Atrophy Of Pacific Oyster Crassostrea Gigas In Gamakman Bay Off The Southern Coast Of Korea

Spat of Pacific oysters (Crassostrea gigas) were collected from Gamakman Bay, Korea, and raised in a spat hardening facility located in the low intertidal zone of the bay for a "hardening/stunting" period of 10 mo. Seasonal changes in growth, reproductive condition, and digestive tubule at...

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Published in:Journal of Shellfish Research
Main Authors: Kang, DH, Chu, Fu-Lin E., Yang, HS, Lee, CH, Koh, HB, Choi, KS
Format: Text
Language:unknown
Published: W&M ScholarWorks 2010
Subjects:
Online Access:https://scholarworks.wm.edu/vimsarticles/387
https://scholarworks.wm.edu/context/vimsarticles/article/1386/viewcontent/kang2010.pdf
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spelling ftwilliammarycol:oai:scholarworks.wm.edu:vimsarticles-1386 2024-06-23T07:52:15+00:00 Growth, Reproductive Condition, And Digestive Tubule Atrophy Of Pacific Oyster Crassostrea Gigas In Gamakman Bay Off The Southern Coast Of Korea Kang, DH Chu, Fu-Lin E. Yang, HS Lee, CH Koh, HB Choi, KS 2010-01-01T08:00:00Z application/pdf https://scholarworks.wm.edu/vimsarticles/387 doi: 10.2983/035.029.0418 https://scholarworks.wm.edu/context/vimsarticles/article/1386/viewcontent/kang2010.pdf unknown W&M ScholarWorks https://scholarworks.wm.edu/vimsarticles/387 doi: 10.2983/035.029.0418 https://scholarworks.wm.edu/context/vimsarticles/article/1386/viewcontent/kang2010.pdf http://creativecommons.org/licenses/by-nc-sa/3.0/ VIMS Articles Oyster Crassostrea Gigas Hardening Reproduction Digestive Tubule Atrophy Gamakman Bay Korea Aquatic Health Sciences Peer-Reviewed Articles Marine Biology text 2010 ftwilliammarycol https://doi.org/10.2983/035.029.0418 2024-06-05T03:31:54Z Spat of Pacific oysters (Crassostrea gigas) were collected from Gamakman Bay, Korea, and raised in a spat hardening facility located in the low intertidal zone of the bay for a "hardening/stunting" period of 10 mo. Seasonal changes in growth, reproductive condition, and digestive tubule atrophy (DTA) of these "hardened/stunted" oysters were monitored for more than a year after transplanting to a suspended longline system in a grow-out area in the bay. After transplantation, the hardened/stunted oysters showed a logarithmic increase in shell size for the first 4 mo, from June to October, and growth remained stable from late fall to early spring. During the 12 mo of the grow-out, the shell size of the hardened/stunted oysters increased from 15.4-74.2 mm, and tissue weight increased from 0.49-12.85 g. Histological analysis revealed that gametogenesis of hardened/stunted oysters commenced as early as February when water temperature remained at 10 degrees C, and spawning occurred from July to September when water temperature reached 25-27 degrees C. DTA assessed from histological analysis was higher from September to February, when the chlorophyll a level in the bay was lower. These data suggest that seasonal fluctuations in water temperature and food availability in the water column are the 2 main environmental parameters governing reproduction and growth of oyster in Gamakman Bay, and DTA could be a useful biomarker for monitoring the nutritional condition of oysters. Text Crassostrea gigas Pacific oyster W&M ScholarWorks Pacific Journal of Shellfish Research 29 4 839 845
institution Open Polar
collection W&M ScholarWorks
op_collection_id ftwilliammarycol
language unknown
topic Oyster
Crassostrea Gigas
Hardening
Reproduction
Digestive Tubule Atrophy
Gamakman Bay
Korea
Aquatic Health Sciences Peer-Reviewed Articles
Marine Biology
spellingShingle Oyster
Crassostrea Gigas
Hardening
Reproduction
Digestive Tubule Atrophy
Gamakman Bay
Korea
Aquatic Health Sciences Peer-Reviewed Articles
Marine Biology
Kang, DH
Chu, Fu-Lin E.
Yang, HS
Lee, CH
Koh, HB
Choi, KS
Growth, Reproductive Condition, And Digestive Tubule Atrophy Of Pacific Oyster Crassostrea Gigas In Gamakman Bay Off The Southern Coast Of Korea
topic_facet Oyster
Crassostrea Gigas
Hardening
Reproduction
Digestive Tubule Atrophy
Gamakman Bay
Korea
Aquatic Health Sciences Peer-Reviewed Articles
Marine Biology
description Spat of Pacific oysters (Crassostrea gigas) were collected from Gamakman Bay, Korea, and raised in a spat hardening facility located in the low intertidal zone of the bay for a "hardening/stunting" period of 10 mo. Seasonal changes in growth, reproductive condition, and digestive tubule atrophy (DTA) of these "hardened/stunted" oysters were monitored for more than a year after transplanting to a suspended longline system in a grow-out area in the bay. After transplantation, the hardened/stunted oysters showed a logarithmic increase in shell size for the first 4 mo, from June to October, and growth remained stable from late fall to early spring. During the 12 mo of the grow-out, the shell size of the hardened/stunted oysters increased from 15.4-74.2 mm, and tissue weight increased from 0.49-12.85 g. Histological analysis revealed that gametogenesis of hardened/stunted oysters commenced as early as February when water temperature remained at 10 degrees C, and spawning occurred from July to September when water temperature reached 25-27 degrees C. DTA assessed from histological analysis was higher from September to February, when the chlorophyll a level in the bay was lower. These data suggest that seasonal fluctuations in water temperature and food availability in the water column are the 2 main environmental parameters governing reproduction and growth of oyster in Gamakman Bay, and DTA could be a useful biomarker for monitoring the nutritional condition of oysters.
format Text
author Kang, DH
Chu, Fu-Lin E.
Yang, HS
Lee, CH
Koh, HB
Choi, KS
author_facet Kang, DH
Chu, Fu-Lin E.
Yang, HS
Lee, CH
Koh, HB
Choi, KS
author_sort Kang, DH
title Growth, Reproductive Condition, And Digestive Tubule Atrophy Of Pacific Oyster Crassostrea Gigas In Gamakman Bay Off The Southern Coast Of Korea
title_short Growth, Reproductive Condition, And Digestive Tubule Atrophy Of Pacific Oyster Crassostrea Gigas In Gamakman Bay Off The Southern Coast Of Korea
title_full Growth, Reproductive Condition, And Digestive Tubule Atrophy Of Pacific Oyster Crassostrea Gigas In Gamakman Bay Off The Southern Coast Of Korea
title_fullStr Growth, Reproductive Condition, And Digestive Tubule Atrophy Of Pacific Oyster Crassostrea Gigas In Gamakman Bay Off The Southern Coast Of Korea
title_full_unstemmed Growth, Reproductive Condition, And Digestive Tubule Atrophy Of Pacific Oyster Crassostrea Gigas In Gamakman Bay Off The Southern Coast Of Korea
title_sort growth, reproductive condition, and digestive tubule atrophy of pacific oyster crassostrea gigas in gamakman bay off the southern coast of korea
publisher W&M ScholarWorks
publishDate 2010
url https://scholarworks.wm.edu/vimsarticles/387
https://scholarworks.wm.edu/context/vimsarticles/article/1386/viewcontent/kang2010.pdf
geographic Pacific
geographic_facet Pacific
genre Crassostrea gigas
Pacific oyster
genre_facet Crassostrea gigas
Pacific oyster
op_source VIMS Articles
op_relation https://scholarworks.wm.edu/vimsarticles/387
doi: 10.2983/035.029.0418
https://scholarworks.wm.edu/context/vimsarticles/article/1386/viewcontent/kang2010.pdf
op_rights http://creativecommons.org/licenses/by-nc-sa/3.0/
op_doi https://doi.org/10.2983/035.029.0418
container_title Journal of Shellfish Research
container_volume 29
container_issue 4
container_start_page 839
op_container_end_page 845
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