Structure and dynamics of a high-latitude scleractinian coral community in Amakusa, southwestern Japan

Yoko Nozawa, Mutsunori Tokeshi, Satoshi Nojima

研究成果: ジャーナルへの寄稿記事

26 引用 (Scopus)

抄録

This study examined structure and dynamics of a high-latitude scleractinian coral community in Amakusa, southwestern Japan (32° N). All visible colonies (>∼5 mm in diameter) in an area of 100 m2 were monitored for 2 yr (2001 to 2003). A total of 54 species belonging to 30 genera in 13 families were identified from 2471 colonies that covered 28.3 % of the area in 2001. The majority of these were spawners with only 4 brooding species being identified or inferred. Faviidae was the most specious family (21 spp.), being dominant in terms of both colony number (49.8 %) and cover (55.4 %). In spawning genera, frequency distributions of colony sizes were characterized by a larger median size, wide size range and a tendency toward negative skewness, whereas in brooding genera, highest frequencies were in small size classes with a tendency toward positive skewness. Annual recruitment, dominated by Acropora and 3 brooding genera, was relatively constant (122 to 132 recruits) but always lower than annual mortality (death/dislodgement, 187 to 288 colonies), resulting in a rapid reduction in colony number (9%) in the 2 yr study period. Acropora and brooding genera accounted for 79 % of the community turnover (mortality and recruitment) while many genera showed little or no change. Pocillopora showed the largest increase (+36 colonies) and Acropora the largest decrease (-127 colonies). During the study period, 57 colonies of middle to large size were lost (i.e. no skeleton remained) due to severe wave action caused by rough weather or typhoons, while colonies that died from other causes (418 colonies) were mostly of small sizes. Consequently, though deaths accounted for 88 % of colony losses, lost colonies (i.e. those not counted as 'dead') accounted for 75 % of coral cover reduction. This occasional loss of large colonies by severe wave action is likely to be a significant factor inhibiting the development of scleractinian communities and reef accretion, especially at high latitudes where these processes are considered to be slow.

元の言語英語
ページ(範囲)151-160
ページ数10
ジャーナルMarine Ecology Progress Series
358
DOI
出版物ステータス出版済み - 4 21 2008

Fingerprint

Acropora
coral
Japan
typhoons
death
skeleton
corals
reefs
weather
spawning
wave action
skewness
Scleractinia
mortality
range size

All Science Journal Classification (ASJC) codes

  • Ecology, Evolution, Behavior and Systematics
  • Aquatic Science
  • Ecology

これを引用

Structure and dynamics of a high-latitude scleractinian coral community in Amakusa, southwestern Japan. / Nozawa, Yoko; Tokeshi, Mutsunori; Nojima, Satoshi.

:: Marine Ecology Progress Series, 巻 358, 21.04.2008, p. 151-160.

研究成果: ジャーナルへの寄稿記事

@article{d704913c044d44f79473eff5807729b8,
title = "Structure and dynamics of a high-latitude scleractinian coral community in Amakusa, southwestern Japan",
abstract = "This study examined structure and dynamics of a high-latitude scleractinian coral community in Amakusa, southwestern Japan (32° N). All visible colonies (>∼5 mm in diameter) in an area of 100 m2 were monitored for 2 yr (2001 to 2003). A total of 54 species belonging to 30 genera in 13 families were identified from 2471 colonies that covered 28.3 {\%} of the area in 2001. The majority of these were spawners with only 4 brooding species being identified or inferred. Faviidae was the most specious family (21 spp.), being dominant in terms of both colony number (49.8 {\%}) and cover (55.4 {\%}). In spawning genera, frequency distributions of colony sizes were characterized by a larger median size, wide size range and a tendency toward negative skewness, whereas in brooding genera, highest frequencies were in small size classes with a tendency toward positive skewness. Annual recruitment, dominated by Acropora and 3 brooding genera, was relatively constant (122 to 132 recruits) but always lower than annual mortality (death/dislodgement, 187 to 288 colonies), resulting in a rapid reduction in colony number (9{\%}) in the 2 yr study period. Acropora and brooding genera accounted for 79 {\%} of the community turnover (mortality and recruitment) while many genera showed little or no change. Pocillopora showed the largest increase (+36 colonies) and Acropora the largest decrease (-127 colonies). During the study period, 57 colonies of middle to large size were lost (i.e. no skeleton remained) due to severe wave action caused by rough weather or typhoons, while colonies that died from other causes (418 colonies) were mostly of small sizes. Consequently, though deaths accounted for 88 {\%} of colony losses, lost colonies (i.e. those not counted as 'dead') accounted for 75 {\%} of coral cover reduction. This occasional loss of large colonies by severe wave action is likely to be a significant factor inhibiting the development of scleractinian communities and reef accretion, especially at high latitudes where these processes are considered to be slow.",
author = "Yoko Nozawa and Mutsunori Tokeshi and Satoshi Nojima",
year = "2008",
month = "4",
day = "21",
doi = "10.3354/meps07342",
language = "English",
volume = "358",
pages = "151--160",
journal = "Marine Ecology - Progress Series",
issn = "0171-8630",
publisher = "Inter-Research",

}

TY - JOUR

T1 - Structure and dynamics of a high-latitude scleractinian coral community in Amakusa, southwestern Japan

AU - Nozawa, Yoko

AU - Tokeshi, Mutsunori

AU - Nojima, Satoshi

PY - 2008/4/21

Y1 - 2008/4/21

N2 - This study examined structure and dynamics of a high-latitude scleractinian coral community in Amakusa, southwestern Japan (32° N). All visible colonies (>∼5 mm in diameter) in an area of 100 m2 were monitored for 2 yr (2001 to 2003). A total of 54 species belonging to 30 genera in 13 families were identified from 2471 colonies that covered 28.3 % of the area in 2001. The majority of these were spawners with only 4 brooding species being identified or inferred. Faviidae was the most specious family (21 spp.), being dominant in terms of both colony number (49.8 %) and cover (55.4 %). In spawning genera, frequency distributions of colony sizes were characterized by a larger median size, wide size range and a tendency toward negative skewness, whereas in brooding genera, highest frequencies were in small size classes with a tendency toward positive skewness. Annual recruitment, dominated by Acropora and 3 brooding genera, was relatively constant (122 to 132 recruits) but always lower than annual mortality (death/dislodgement, 187 to 288 colonies), resulting in a rapid reduction in colony number (9%) in the 2 yr study period. Acropora and brooding genera accounted for 79 % of the community turnover (mortality and recruitment) while many genera showed little or no change. Pocillopora showed the largest increase (+36 colonies) and Acropora the largest decrease (-127 colonies). During the study period, 57 colonies of middle to large size were lost (i.e. no skeleton remained) due to severe wave action caused by rough weather or typhoons, while colonies that died from other causes (418 colonies) were mostly of small sizes. Consequently, though deaths accounted for 88 % of colony losses, lost colonies (i.e. those not counted as 'dead') accounted for 75 % of coral cover reduction. This occasional loss of large colonies by severe wave action is likely to be a significant factor inhibiting the development of scleractinian communities and reef accretion, especially at high latitudes where these processes are considered to be slow.

AB - This study examined structure and dynamics of a high-latitude scleractinian coral community in Amakusa, southwestern Japan (32° N). All visible colonies (>∼5 mm in diameter) in an area of 100 m2 were monitored for 2 yr (2001 to 2003). A total of 54 species belonging to 30 genera in 13 families were identified from 2471 colonies that covered 28.3 % of the area in 2001. The majority of these were spawners with only 4 brooding species being identified or inferred. Faviidae was the most specious family (21 spp.), being dominant in terms of both colony number (49.8 %) and cover (55.4 %). In spawning genera, frequency distributions of colony sizes were characterized by a larger median size, wide size range and a tendency toward negative skewness, whereas in brooding genera, highest frequencies were in small size classes with a tendency toward positive skewness. Annual recruitment, dominated by Acropora and 3 brooding genera, was relatively constant (122 to 132 recruits) but always lower than annual mortality (death/dislodgement, 187 to 288 colonies), resulting in a rapid reduction in colony number (9%) in the 2 yr study period. Acropora and brooding genera accounted for 79 % of the community turnover (mortality and recruitment) while many genera showed little or no change. Pocillopora showed the largest increase (+36 colonies) and Acropora the largest decrease (-127 colonies). During the study period, 57 colonies of middle to large size were lost (i.e. no skeleton remained) due to severe wave action caused by rough weather or typhoons, while colonies that died from other causes (418 colonies) were mostly of small sizes. Consequently, though deaths accounted for 88 % of colony losses, lost colonies (i.e. those not counted as 'dead') accounted for 75 % of coral cover reduction. This occasional loss of large colonies by severe wave action is likely to be a significant factor inhibiting the development of scleractinian communities and reef accretion, especially at high latitudes where these processes are considered to be slow.

UR - http://www.scopus.com/inward/record.url?scp=44249121066&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=44249121066&partnerID=8YFLogxK

U2 - 10.3354/meps07342

DO - 10.3354/meps07342

M3 - Article

AN - SCOPUS:44249121066

VL - 358

SP - 151

EP - 160

JO - Marine Ecology - Progress Series

JF - Marine Ecology - Progress Series

SN - 0171-8630

ER -