Part of the regional summaries: Taiwan (mainland + offshore islands) and Taiwan

This regional pin covers the Kenting/Nanwan coast behind Anderson's SHVTS thermal-physiology work, comparing Seriatopora hystrix at cold-upwelling Houbihu against non-upwelling Houwan, with more than fifty logged dives from 2008-2011 including coral-spawning observations and work in a power-plant thermal outlet. The first three of its thirteen attached photographs show a robust Acropora thicket, a densely covered but turbid slope, and a plating/encrusting wall with feather stars; no coral-cover figure of its own has been derived for this site. Nearby surveys: 22% (Reef Check Houbihu, 2025, mean of 4 surveys, 1.52 km; the most recent year) and 15% (XL Catlin Seaview Survey transect 42011, 3 May 2018, 0.71 km; the headline, from the nearest survey station).
這個區域標記涵蓋了墾丁/南灣(Kenting/Nanwan)海岸,也就是 Anderson 進行 SHVTS 熱生理研究的地點,比較冷水湧升的後壁湖(Houbihu)與無湧升的後灣(Houwan)的細枝鹿角珊瑚(Seriatopora hystrix),2008-2011 年間記錄了五十多次潛水,包括珊瑚產卵觀察以及在發電廠溫排水口的工作。所附十三張照片中的前三張顯示粗壯的軸孔珊瑚(Acropora)叢、覆蓋茂密但水質混濁的斜坡,以及一面有羽星的板狀/殼狀珊瑚壁;此站尚未推算出自己的珊瑚覆蓋率數據。附近調查:22%(Reef Check 後壁湖,2025 年,4 次調查的平均,1.52 km;即最近一年)以及 15%(XL Catlin Seaview Survey 穿越線 42011,2018 年 5 月 3 日,0.71 km;為主要數據,取自最近的調查站)。
本摘要由 AI 翻譯;以英文版本為準。
22 independent survey stations shown with the program’s logo — click one to see how far it is from this site.
4 of the 13 photographs on this page are shown beside the text that discusses them under "Site description" below.
This is a regional marker covering the Kenting/Nanwan coast at Taiwan's southern tip — the reef system behind Anderson's SHVTS work, which compared Seriatopora hystrix thermal physiology at the cold-upwelling site Houbihu against non-upwelling Houwan up the coast (see coralreefdiagnostics.com/shvts). Visibility in two of the three described frames is plainly limited, consistent with the logs' repeated complaints of murk.
The first shows a robust tan branching Acropora thicket with white branch tips standing at the edge of a pale silt-sand plain, with a school of fifty-plus green chromis hovering over the sand margin, one black-and-white humbug damselfish, and a few darker damsels below — a coral patch abutting soft sediment, exactly the mosaic the logs describe (e.g., Image 1).
The second is a natural-light, green-cast wide view of a densely covered slope: stacked scalloped foliose and plating colonies, a large maze-patterned brain coral above them, bushy fine-branching colonies along the right ridge, encrusting growth throughout, and a striped bream-like fish — high living cover in visibly turbid, greenish water (e.g., Image 2).
The third looks along a steep, near-vertical face falling into blue: plating and encrusting colonies the whole way down, small massive heads, shadowed crevices, and several large feather stars on the near wall, matching a 2008 log entry that reads simply "murky, many crinoids" (e.g., Image 3).
Image 6, filed by Anderson as 'bleaching', shows a large massive coral white over most of its upper surface with pigmented patches below, which is partial bleaching; the photograph is undated within the 2008-2010 dives.
No disease, predation or man-made object is resolvable in the frames described, and the green-blue color cast makes finer pigment calls unsafe.
Tkachenko et al. (2007) and Dang et al. (2020) surveyed this site (Nanwan). Within 5 km, 22 independent stations recorded station-year means of 2.3–49% hard coral cover between 2003 and 2025; the nearest, XL Catlin Seaview Survey at transect 42011, 0.66 km away, read 15–18% between 2016 and 2018.
Anderson's own 2008-2011 University of Hawaii, UCSB, and dive-computer logs carry more than fifty dives here, from 3.7 to 33.5 m: repeated Seriatopora, Pocillopora damicornis, and Stylophora pistillata collections, settlement-tile and underwater-platform work, a coral-spawning night dive, water and sediment transects, a dive on a Greek wreck, and dives in the power-plant thermal outlet at roughly 30°C and near a sewage outfall where coral was overgrown by algae.
Thirteen photographs are attached to this site, from Anderson's website and a general Nanwan picture collection rather than a dive-by-dive set; only the first three are described in words.
| Agency / program | Year(s) | Stations / distance | Link |
|---|---|---|---|
| Meng et al. (Kenting monitoring, unpublished) | 2003–2006 | 3 stations, 2.28–2.34 km | Records ↓ |
| Reef Check | 2016–2025 | 2 stations, 1.52–3.98 km | Records ↓ |
| Ribas-Deulofeu et al. (2016) | 2011 | 7 stations, 1.11–4.27 km | Records ↓ |
| Tkachenko and Soong (2010) | 2007 | 3 stations, 1.11–3.49 km | Records ↓ |
| XL Catlin Seaview Survey | 2016–2018 | 7 stations, 0.66–4.09 km | Records ↓ |
Within 5 km, 22 independent survey stations recorded hard coral cover in 67 records between 2003 and 2025. Of the 10 stations surveyed in more than one year, 5 were scored by divers or by people annotating photographs: 3 declined (by 1.5–17 points) and 2 increased (by 2.0–4.0 points) between their first and latest surveys. The other 5 were scored by automated image analysis: 5 changed by 7 points or less, inside the 7-point method-noise floor (inconclusive). The longest record, Hejie (Reef Check, 3.98 km away), went from 43% in 2016 (mean of 2 surveys) to 26% in 2025 (mean of 4 surveys). Since 2021, station-year means average 24% (range 18–31%; n = 4 station-years from 16 records).
Collected by other programs using different methods (Reef Check uses point-intercept transects; the XL Catlin Seaview Survey uses photo-transects with automated image annotation), so these are context for the figures above, not a like-for-like comparison. Where a station was surveyed more than once, the cell shows either the range of its values or, as a single value, the mean of surveys made in one year. Station names are not dive-site names.
| Agency | Site / location | Date | Hard coral cover (%) | Distance | Link |
|---|---|---|---|---|---|
| Meng et al. (Kenting monitoring, unpublished) | Nuclear power plant outlet, right (出水口右) | 2003–2006 | 7.2–12% (range of yearly means; 4 surveys; 12 transects) | 2.28 km | — |
| Meng et al. (Kenting monitoring, unpublished) | Nuclear power plant outlet, left (出水口左) | 2003–2006 | 6.6–12% (range of yearly means; 4 surveys; 12 transects) | 2.28 km | — |
| Meng et al. (Kenting monitoring, unpublished) | Tiaoshi (跳石) | 2003–2006 | 29–38% (range of yearly means; 4 surveys; 12 transects) | 2.34 km | — |
| Tkachenko and Soong (2010) | Hobihu No-Take area | 2007 | 27% (2 records) | 1.11 km | — |
| Tkachenko and Soong (2010) | Tiaoshi | 2007 | 40% (2 records) | 2.34 km | — |
| Tkachenko and Soong (2010) | Outlet | 2007 | 30% (2 records) | 3.49 km | — |
| Ribas-Deulofeu et al. (2016) | Houbihu | 2011 | 48% | 1.11 km | doi:10.1371/journal.pone.0160601 |
| Ribas-Deulofeu et al. (2016) | Outlet | 2011 | 45% | 2.22 km | doi:10.1371/journal.pone.0160601 |
| Ribas-Deulofeu et al. (2016) | Tioashih | 2011 | 10% | 2.34 km | doi:10.1371/journal.pone.0160601 |
| Ribas-Deulofeu et al. (2016) | Leidashih | 2011 | 28% | 2.45 km | doi:10.1371/journal.pone.0160601 |
| Ribas-Deulofeu et al. (2016) | Tanzihwan | 2011 | 14% | 3.09 km | doi:10.1371/journal.pone.0160601 |
| Ribas-Deulofeu et al. (2016) | Hongchai | 2011 | 2.3% | 3.81 km | doi:10.1371/journal.pone.0160601 |
| Ribas-Deulofeu et al. (2016) | Dingbaisha | 2011 | 4.8% | 4.27 km | doi:10.1371/journal.pone.0160601 |
| XL Catlin Seaview Survey | transect 42011 | 2016–2018 | 15–18% (2 surveys) | 0.66 km | doi:10.14264/uql.2019.930 |
| XL Catlin Seaview Survey | transect 42012 | 2016–2018 | 5.1–9.9% (2 surveys) | 1.23 km | doi:10.14264/uql.2019.930 |
| XL Catlin Seaview Survey | transect 42017 | 2016–2018 | 9.6–14% (2 surveys) | 1.89 km | doi:10.14264/uql.2019.930 |
| XL Catlin Seaview Survey | transect 42016 | 2016 | 19% | 2.08 km | doi:10.14264/uql.2019.930 |
| XL Catlin Seaview Survey | transect 42013 | 2016–2018 | 13–16% (2 surveys) | 2.10 km | doi:10.14264/uql.2019.930 |
| XL Catlin Seaview Survey | transect 42015 | 2016 | 11% | 2.24 km | doi:10.14264/uql.2019.930 |
| Reef Check | Hejie | 2016–2025 | 26–49% (range of yearly means; 22 surveys) | 3.98 km | — |
| XL Catlin Seaview Survey | transect 42014 | 2016–2018 | 21–25% (2 surveys) | 4.09 km | doi:10.14264/uql.2019.930 |
| Reef Check | Houbihu | 2024–2025 | 18–22% (range of yearly means; 8 surveys) | 1.52 km | — |
All images from Coral Reef Diagnostics. Data on this page are from Coral Reef Diagnostics (the dive record) and the organizations named in the data sources above; Coral Reef Diagnostics has no coral cover estimate of its own at this site.
© Coral Reef Diagnostics.