Indonesia - Komodo NP: Batu Bolong
Part of the regional summary: Indonesia - Komodo
2009-08-18
More info
East Nusa Tenggara (NOAA CRW virtual station)An exposed pinnacle in Komodo's Lintah Strait, dived twice in August 2009 and logged by Anderson as a wall dive in perfect conditions. No photographs or coral-cover figure of its own exist for this site; no survey station lies within 2 km; the nearest Reef Check station, Siaba Besar (Sector 1), 3.36 km away, averaged 51% hard coral across its two 2020 surveys.
Puncak karang terbuka di Selat Lintah, Komodo, diselami dua kali pada Agustus 2009 dan dicatat Anderson sebagai penyelaman dinding dalam kondisi sempurna. Tidak ada foto atau angka tutupan karang sendiri untuk lokasi ini; tidak ada stasiun survei dalam radius 2 km; stasiun Reef Check terdekat, Siaba Besar (Sektor 1), yang berjarak 3.36 km, rata-rata mencatat 51% karang keras pada dua survei tahun 2020.
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mean; range 27.9–28.1°C
Seven independent survey stations shown with the program’s logo — click one to see how far it is from this site.
Nine other CRD dive sites with their own pages within 5 km shown in orange — click a marker to open its page.
Site description
Setting
Batu Bolong is the exposed pinnacle in the Lintah Strait, in the central sector of Komodo National Park. Context: Komodo NP sits where Indian and Pacific Ocean water meet, and the strong tidal flow through these straits is a park-wide feature, not something measured on these dives.
Coral cover
- No coral-cover value of its own exists here.
Stressors
Heat stress: five-year mean annual maximum of 6.3 degree-heating weeks (2021–2025, NOAA Coral Reef Watch East Nusa Tenggara virtual station).
Comparisons with other data
Seven records fall within 5 km (2016-2020), ranging from 8.8% to 59%, so none of them can stand in for this site's own cover.
Dive record
It was dived twice on the August 2009 trip: 15 August 2009, entry 13:00, maximum depth 22.9 m, 65 minutes; and 18 August 2009, entry 10:30, maximum depth 25.0 m, 62 minutes, when the log records diving "the north part first" in "perfect conditions". The 2009 log describes a wall dive comparable to Bunaken.
Other notes
No photographs are attached to this site, so those log entries are the whole record of the dives.
Dive history
| Date | Time in | Max depth (m) | Bottom time (min) |
|---|---|---|---|
| 2009-08-15 | 13:00 | 22.9 | 65 |
| 2009-08-18 | 10:30 | 25.0 | 62 |
Independent surveys nearby
| Agency / program | Year(s) | Stations / distance | Link |
|---|---|---|---|
| Reef Check | 2020 | 5 stations, 3.36–3.68 km | Records ↓ |
| WWF-US / WWF-Indonesia | 2016 | 2 stations, 3.35–4.13 km | Records ↓ |
Within 5 km, 7 independent survey stations recorded hard coral cover in 11 surveys between 2016 and 2020. The most recent nearby survey is from 2020, so these values predate recent heat stress.
Collected by other programs using different methods (Reef Check uses point-intercept transects), 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 |
|---|---|---|---|---|---|
| WWF-US / WWF-Indonesia | TNK08 | 2016 | 59% | 3.35 km | Amkieltiela, Abdillah T, Amkieltiela A, Andradi-Brown D, Lazuardi E. 2016. Komodo MPA. MERMAID |
| WWF-US / WWF-Indonesia | TNK06 | 2016 | 40% | 4.13 km | Amkieltiela, Abdillah T, Amkieltiela A, Andradi-Brown D, Lazuardi E. 2016. Komodo MPA. MERMAID |
| Reef Check | Siaba Besar (Sector 1) | 2020 | 51% (2 surveys) | 3.36 km | — |
| Reef Check | Siaba Besar (Sector 2) | 2020 | 47% (2 surveys) | 3.36 km | — |
| Reef Check | Pengah Kecil (Sector 1) SW Side | 2020 | 48% (2 surveys) | 3.44 km | — |
| Reef Check | Mawan (Sector 1) | 2020 | 10% (2 surveys) | 3.68 km | — |
| Reef Check | Mawan (Sector 2) | 2020 | 8.8% | 3.68 km | — |
Data & links
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.