Taiwan

Denis, Vianney; Soto, Derek; Palmas, Stéphane De; Lin, Yu Ting; Benayahu, Yehuda; Huang, Yusheng Michael; Liu, Shao‐Lun; Chen, Jianwen; Chen, Qi; Sturaro, Nicolas; Ho, Margaret S.; Su, Yeng; Dai, Chang‐Feng; Chen, Chaolun Allen

doi:10.1007/978-3-319-92735-0_14

Cited by 19 publications

(22 citation statements)

References 29 publications

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“…This species was previously known from shallow waters from 0 to 10 m deep ( Dai & Horng, 2009a ). Our data corroborate the presence of P. verrucosa in the mesophotic zone of Ludao ( Denis et al, in press ). This finding extends the known bathymetric distribution of this species in Ludao, with the help of molecular taxonomy.…”

Section: Discussionsupporting

confidence: 89%

“…This finding extends the known bathymetric distribution of this species in Ludao, with the help of molecular taxonomy. P. verrucosa is one of the dominant scleractinian corals at the maximum depth surveyed by Denis et al (in press ; 55 m in depth) and in our survey as well (45 m in depth). The relatively important density of P. verrucosa at these depths suggests that this species could occur at greater depths than the ones surveyed.…”

Section: Discussionsupporting

confidence: 67%

“…The genotyping of this species exclusively in the shallow waters could indicate that P. verrucosa and P. meandrina are, at least, difficult to differentiate in the shallow waters of Ludao. Our deepest record of P. meandrina genotype was limited to 15 m and this species was not found in the diversity survey done in Denis et al (in press) . Moreover, the undescribed Pocillopora species genotyped in our survey (H3), recovered from the shallow water (seven meters) confirms the presence of this rare Pocillopora species from Taiwan ( Pinzón et al, 2013 ; Schmidt-Roach et al, 2014 ).…”

Section: Discussionmentioning

confidence: 88%

“…P. verrucosa , P. meandrina , P. damicornis and P. eydouxi have been described as exclusively shallow water species, their distribution ranging from 0 to 15 m depths ( Dai & Horng, 2009a ). However, Denis et al (in press) reported P. verrucosa in Ludao (Green Island) at depths of up to 55 m, where it is one of the dominant scleractinian coral. Locally, P. meandrina and P. verrucosa share close morphologies: P. meandrina is described as similar to P. verrucosa but with shorter, flattened branches and smaller verrucae ( Dai & Horng, 2009b ).…”

Section: Introductionmentioning

confidence: 99%

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Molecular assessment ofPocillopora verrucosa(Scleractinia; Pocilloporidae) distribution along a depth gradient in Ludao, Taiwan

Palmas

Soto

Denis

et al. 2018

PeerJ

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It can be challenging to identify scleractinian corals from the genus Pocillopora Lamarck 1816 in the field because of their large range of inter- and intra-specific morphological variation that co-occur with changes in the physical environment. This task is made more arduous in the context of a depth gradient, where light and water current could greatly affect the morphology of the corallum. Pocillopora verrucosa (Ellis & Solander 1786) in Taiwan was previously reported exclusively from shallow waters (<10 m in depth), but a recent observation of this species in the mesophotic zone (>40 m in depth) questions this bathymetric distribution. We used the mitochondrial open reading frame and the histone 3 molecular markers to investigate the vertical and horizontal spatial distribution of P. verrucosa around Ludao (Green Island), Taiwan. We genotyped 101 P. verrucosa-like colonies collected from four depth zones, ranging from 7 to 45 m, at three sites around the island. Of the 101 colonies sampled, 85 were genotyped as P. verrucosa, 15 as P. meandrina, and one specimen as an undescribed Pocillopora species. P. verrucosa was found at all depths, while P. meandrina and the undescribed Pocillopora specimen were limited to 15 m depth. P. verrucosa has a large bathymetric distribution around Ludao and could benefit from the refuge that the mesophotic zone offers. This study illustrates the difficulty of identifying Pocillopora corals in the field and emphasizes the relevance of molecular taxonomy as an important and complementary tool to traditional taxonomy for clarifying vertical and horizontal species distribution. Our results also illustrate the need in conservation biology to target species genetic diversity rather than just species diversity.

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Section: Discussionsupporting

confidence: 89%

Section: Discussionsupporting

confidence: 67%

Section: Discussionmentioning

confidence: 88%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Molecular assessment ofPocillopora verrucosa(Scleractinia; Pocilloporidae) distribution along a depth gradient in Ludao, Taiwan

Palmas

Soto

Denis

et al. 2018

PeerJ

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“…Ocean bathymetry data were obtained from the Ocean Data Bank of the Ministry of Science and Technology, Taiwan ( http://www.odb.ntu.edu.tw/). The habitats of the coral communities shown in the brown shadows were adapted and modified from Denis et al (2019).…”

Section: Introductionmentioning

confidence: 99%

Tide‐Induced Periodic Sea Surface Temperature Drops in the Coral Reef Area of Nanwan Bay, Southern Taiwan

et al. 2020

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Tidal current-induced cyclonic eddies cause cold-water upwelling and periodic sea surface temperature (SST) drops around the coral reef area in Nanwan Bay, which is located at the southern tip of Taiwan. This study used Himawari-8 satellite data and tide gauge and coastal ocean dynamics application radar (CODAR) data to analyze the characteristics of the SST drops and cyclonic eddy propagation and used an oceanic general circulation model (OGCM) to simulate the tidal current flowing process. According to the CODAR data analysis, the mixed primary semidiurnal tide had an average current velocity of 0.3-0.4 m s −1 throughout the bay, and the average life cycle of a cyclonic eddy is 6.6 hr, with a propagation speed of 0.35 m s −1 . The SST drop during the spring tide period was greater than that during the neap tide period, and the SST dropped in both summer and winter. The average daily SST drop in the summer reached 2°C with a maximum observed value of 4.7°C, and the SST drop rate was 0.3-0.5°C hr −1 . The annual mean chlorophyll-a concentration was 0.25 mg m −3 . This study explored the special properties of the Nanwan Bay coral reef area from the perspective of ocean physics to allow ecologists to facilitate the implementation of long-term conservation and monitoring programs.Plain Language Summary In recent years, the increased global sea temperatures have caused severe coral bleaching; however, Nanwan Bay has suffered a comparatively smaller impact. To understand why, we analyzed satellite and radar data. We found that Nanwan Bay experienced an almost daily sea surface temperature (SST) drop during the summer and that this periodic variation was caused by a cyclonic eddy upwelling cold water to the surface. In the summer, the SST drop was 2°C on average and dropped at a rate of 0.3-0.5°C hr −1 . The observational record indicated that the water cooled as much as 4.7°C in 1 day. These eddies were caused by the unique topography in this area of the bay; they survived an average of 6.6 hr and moved at a rate of 0.35 m s −1 . The formed eddies disappeared in the bay or flowed southward out of the bay. With this study, we hope to help marine ecologists understand the Nanwan Bay environment from a geophysical perspective so that they have sufficient background knowledge when investigating coral biology and coral reef ecology in the future.

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A molecular census of early‐life stage scleractinian corals in shallow and mesophotic zones

Soto

Palmas

et al. 2021

Ecology and Evolution

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The decline of coral reefs has fueled interest in determining whether mesophotic reefs can shield against disturbances and help replenish deteriorated shallower reefs. In this study, we characterized spatial (horizontal and vertical) and seasonal patterns of diversity in coral recruits from Dabaisha and Guiwan reefs at Ludao, Taiwan. Concrete blocks supporting terra‐cotta tiles were placed at shallow (15m) and mesophotic (40m) depths, during 2016–2018. Half of the tiles were retrieved and replaced biannually over three 6‐month surveys (short‐term); the remainder retrieved at the end of the 18‐month (long‐term) survey. 451 recruits were located using fluorescent censusing and identified by DNA barcoding. Barcoding the mitochondrial cytochrome oxidase I (COI) gene resulted in 17 molecular operational taxonomic units (MOTUs). To obtain taxonomic resolution to the generic level, Pocillopora were phylotyped using the mitochondrial open reading frame (ORF), resolving eight MOTUs. Acropora, Isopora, and Montipora recruits were identified by the nuclear PaxC intron, yielding ten MOTUs. Overall, 35 MOTUs were generated and were comprised primarily of Pocillopora and, in fewer numbers, Acropora, Isopora, Pavona, Montipora, Stylophora, among others. 40% of MOTUs recruited solely within mesophotic reefs while 20% were shared by both depth zones. MOTUs recruiting across a broad depth distribution appear consistent with the hypothesis of mesophotic reefs acting as a refuge for shallow‐water coral reefs. In contrast, Acropora and Isopora MOTUs were structured across depth zones representing an exception to this hypothesis. This research provides an imperative assessment of coral recruitment in understudied mesophotic reefs and imparts insight into the refuge hypothesis.

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Taiwan

Cited by 19 publications

References 29 publications

Molecular assessment ofPocillopora verrucosa(Scleractinia; Pocilloporidae) distribution along a depth gradient in Ludao, Taiwan

Molecular assessment ofPocillopora verrucosa(Scleractinia; Pocilloporidae) distribution along a depth gradient in Ludao, Taiwan

Tide‐Induced Periodic Sea Surface Temperature Drops in the Coral Reef Area of Nanwan Bay, Southern Taiwan

A molecular census of early‐life stage scleractinian corals in shallow and mesophotic zones

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