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Titolo:
Coral bleaching: the winners and the losers
Autore:
Loya, Y; Sakai, K; Yamazato, K; Nakano, Y; Sambali, H; van Woesik, R;
Indirizzi:
Tel Aviv Univ, Dept Zool, IL-69978 Tel Aviv, Israel Tel Aviv Univ Tel Aviv Israel IL-69978 t Zool, IL-69978 Tel Aviv, Israel Univ Ryukyus, Trop Biosphere Res Ctr, Sesoko Stn, Okinawa 9050227, Japan Univ Ryukyus Okinawa Japan 9050227 r, Sesoko Stn, Okinawa 9050227, Japan Res Inst Subtrop, Okinawa 9000029, Japan Res Inst Subtrop Okinawa Japan 9000029 t Subtrop, Okinawa 9000029, Japan Univ Ryukyus, Dept Marine Sci, Okinawa 9030213, Japan Univ Ryukyus Okinawa Japan 9030213 pt Marine Sci, Okinawa 9030213, Japan
Titolo Testata:
ECOLOGY LETTERS
fascicolo: 2, volume: 4, anno: 2001,
pagine: 122 - 131
SICI:
1461-023X(200103)4:2<122:CBTWAT>2.0.ZU;2-B
Fonte:
ISI
Lingua:
ENG
Soggetto:
REEF CORALS; FRENCH-POLYNESIA; MASS-TRANSFER; PHASE-SHIFTS; COMMUNITIES; MORTALITY; TEMPERATURE; RECRUITMENT; POPULATION; PATTERNS;
Keywords:
bleaching; coral; coral reefs; global warming; Okinawa; Japan;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
55
Recensione:
Indirizzi per estratti:
Indirizzo: Loya, Y Tel Aviv Univ, Dept Zool, IL-69978 Tel Aviv, Israel Tel Aviv UnivTel Aviv Israel IL-69978 IL-69978 Tel Aviv, Israel
Citazione:
Y. Loya et al., "Coral bleaching: the winners and the losers", ECOL LETT, 4(2), 2001, pp. 122-131

Abstract

Sea surface temperatures were warmer throughout 1998 at Sesolto Island, Japan, than in the 10 preceding years. Temperatures peaked at 2.8 degreesC: above average, resulting in extensive coral bleaching and subsequent coral mortality. Using random quadrat surveys, we quantitatively documented the coral community structure one year before and one year after the bleaching event. The 1998 bleaching event reduced coral species richness by 61% and reduced coral cover by 85%. Colony morphology affected bleaching vulnerabilityand subsequent coral mortality. Finely branched corals were most susceptible, while massive and encrusting colonies survived. Most heavily impacted mere the branched Acropora and pocilloporid corals, some of which showed local extinction. we suggest two hypotheses whose synergistic effect may partially explain observed mortality patterns (i.e. preferential survival of thick-tissued species, and shape-dependent differences in colon) mass-transferefficiency). A community-structural shift occurred on Okinawan reefs, resulting in an increase in the relative abundance of massive and encrusting coral species.

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Documento generato il 01/04/20 alle ore 20:54:20