Marine Biology, Journal Year: 2024, Volume and Issue: 172(2)
Published: Dec. 27, 2024
Language: Английский
Marine Environmental Research, Journal Year: 2024, Volume and Issue: 196, P. 106419 - 106419
Published: Feb. 22, 2024
Language: Английский
Citations
5
Marine Environmental Research, Journal Year: 2025, Volume and Issue: 208, P. 107132 - 107132
Published: April 6, 2025
Understanding species' susceptibility to environmental stressors is crucial for conservation planning, but such data are unavailable many subtropical corals. We therefore conducted 1-month laboratory experiments determine the heat stress of eight species from areas by exposing them 32 °C (treatment) or 25 (control). Four (Dipsastraea rotumana, Echinophyllia aspera, Pavona decussata, and Platygyra carnosa) survived whole experiment, although bleaching occurred after one two weeks exposure. The exposure caused total mortality in other four species: on day 2 Acropora solitaryensis, 7 digitifera, 9 pruinosa, 17 Montipora peltiformis. These results suggest that repeated heatwaves may cause changes coral communities causing disproportionally high heat-sensitive species. Coral tested this study, collected reefs previously thought be refuges under global warming, demonstrated greater than their tropical counterparts. This raises concerns about persistence as sea surface temperatures continue rise.
Language: Английский
Citations
0
Global Change Biology, Journal Year: 2024, Volume and Issue: 30(8)
Published: Aug. 1, 2024
Abstract Marine heatwaves (MHWs), increasing in duration and intensity because of climate change, are now a major threat to marine life can have lasting effects on the structure function ecosystems. However, responses taxa ecosystems MHWs be highly variable, making predicting interpreting biological outcomes challenge. Here, we review how MHWs, from individuals ecosystems, mediated by fine‐scale spatial variability coastal environment (hereafter, local gradients). Viewing observed through lens ecological theory, present simple framework three ‘resilience processes’ (RPs) which gradients influence MHWs. Local (1) amount stress directly experienced individuals, (2) facilitate adaptation acclimatization populations, (3) shape community composition then influences We synthesize known examples that affected benthic foundation species including kelp forests, coral reefs, seagrass meadows link these varying RPs. series case studies various illustrate differential impacts both temperature other co‐occurring drivers. In many cases, had large effect sizes with several causing 10‐fold difference or more (e.g., survival, coverage). This highlights need for high‐resolution environmental data accurately predict manage consequences context ongoing change. While current tools may capture some already, advocate enhanced monitoring finer scale integration heterogeneity into models. will essential developing effective conservation strategies mitigating future biodiversity loss.
Language: Английский
Citations
2
Marine Environmental Research, Journal Year: 2023, Volume and Issue: 193, P. 106218 - 106218
Published: Oct. 5, 2023
Language: Английский
Citations
6
Global Change Biology, Journal Year: 2024, Volume and Issue: 30(4)
Published: April 1, 2024
Both human populations and marine biodiversity are concentrated along coastlines, with growing conservation interest in how these ecosystems can survive intense anthropogenic impacts. Tropical urban centres provide valuable research opportunities because megacities often adjacent to mega-diverse coral reef systems. The Pearl River Delta is a prime exemplar, as it encompasses one of the most densely populated impacted regions world located just northwest Coral Triangle. However, spatial taxonomic complexity this biodiversity, which small, cryptic habitat poorly known, make comparative analyses challenging. We deployed standardized settlement structures at seven sites differing intensity impacts used COI metabarcoding characterize benthic focus on metazoans. found total 7184 OTUs, an average 665 OTUs per sampling unit; numbers exceed those observed many previous studies using comparable methods, despite location our study urbanized environment. Beta diversity was also high, 52% site. As expected, we that close point sources pollution had substantially lower (44% less) relative bathed less polluted oceanic waters. contributed animal region, 25% all occurring only within sites. Further analysis Arthropoda, Annelida Mollusca showed phylogenetic clustering site common, suggesting environmental filtering reduced subset lineages present pattern pronounced for Arthropoda. water quality gradients surrounding PRD highlight unique role situ understanding complex urbanization pressures biodiversity.
Language: Английский
Citations
1
Journal of Oceanology and Limnology, Journal Year: 2024, Volume and Issue: 42(4), P. 1037 - 1047
Published: April 30, 2024
Language: Английский
Citations
1
Environmental Pollution, Journal Year: 2024, Volume and Issue: 358, P. 124515 - 124515
Published: July 10, 2024
Language: Английский
Citations
1
Coral Reefs, Journal Year: 2024, Volume and Issue: 43(5), P. 1235 - 1247
Published: July 26, 2024
Abstract A mass coral bleaching event occurred in the summer of 2022 subtropical Hong Kong, driven by two marine heatwaves (MHWs) with high intensities 1.56 and 0.86 °C above a mean climate condition, both MHWs 7 days short gap 4 during strong La Niña year. transect survey was conducted at nine study sites three regions, which revealed widespread bleached cover ranging from 2.4 to 70.3%. In situ environmental data presence thermocline halocline. Local conditions, including depth wave exposure, significantly influenced response. Shallow-water (2–4 m) corals were primarily affected, particularly sheltered moderately that exhibited higher levels (42.97 ± 15.4% 44.93 29.4%, respectively) compared exposed (31.8 5.2%). Bleaching deep waters (4–6 minimal, only few colonies Goniopora exhibiting (1.7 1.5%). Heat stress resistance differed between genera. Recovery rate for four common genera is low Acropora tumida . Additionally, minor hypoxia found cause mortality non-coral benthos site (Sharp Island). These findings highlight alarming impact extreme on communities underscore importance monitoring bleaching.
Language: Английский
Citations
1
Atmosphere, Journal Year: 2023, Volume and Issue: 14(12), P. 1738 - 1738
Published: Nov. 25, 2023
Marine heatwaves (MHWs) are changing global ecosystems and bearing profound socio-economic impacts, yet our understanding of the spatial features, temporal evolution characteristics, regional differences in China’s marginal seas remains insufficient. In this study, spatio-temporal variation characteristics frequency, mean intensity, maximum cumulative duration total days MHWs systematically analyzed based on daily sea surface temperature data from Operational Sea Surface Temperature Ice Analysis (OSTIA) for period 1983–2020. The results show following: annual frequency coastal is 1.4–4.6 counts per year increases gradually north to south. intensity are, respectively, ranges 0.3–2.9 °C, 0.4–3.7 °C 3.9–41.7 days, all which a significant decreasing trend respective 8.7–19.7 18.9–69.1 days. clear increasing trend, with linear 1.03 counts, 3.57 1.98 17.58 decade. means have no obvious upward exceptions Bohai Yellow Seas. Finally, were divided into four categories moderate, strong, severe extreme, showing that moderate ones account more than 70% heatwave events, while extreme ones, about 25%, 2% 0.02%.
Language: Английский
Citations
3
Marine Pollution Bulletin, Journal Year: 2024, Volume and Issue: 209, P. 117116 - 117116
Published: Oct. 16, 2024
Language: Английский
Citations
0