Acropora palmata On Vauxhall Reef (Reef 34)

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More photos are available on the iNaturalist posts.

For 3 specimens – V1, V2 and V5 – I have photos in both 2023 and early2024; V1 exhibited about 75% dieback in the interval, V2 and V5, 100%. Dieback is attributed to one or more extreme warming/coral bleaching events in 2023.

Specimen V1
Lat: 13.179726 Lon: -59.640668
Mar 23, 2015; on iNat in 2015:/19973670
Jan 11, 2023: iNat Observation 199689188
Feb 4, 2024   iNat Observation 199690758

. At left: Estimated Maximum Linear Dimension: 14 cm

More exposed parts of the colony are dead, attributed to coral bleaching in 2023


Specimen V2
Lat: 13.179726 Lon: -59.640668
Jan 11, 2023 iNat Observation 199689414
Feb 4, 2024 iNat Observation 199691175

Jan 11, 2023

Feb 4, 2024 apparent 100% mortality, attributed to coral bleaching in 2023

 

Photo on Jan 11, 2023 showing proximity of specimens V1 and V2.  Specimen v1 in foreground, arrow points to Specimen V2, a few  meters towards shore from V1; V2 about 1/4 size of V1.


Specimen V3

Lat: 13.179479 Lon: -59.64055
Feb 6, 2020
iNat 38391855

Toppled


Specimen V4
Lat: 13.179479 Lon: -59.64055
Mar 3, 2019
iNat 21068780

Lax Linear Dimension: 63 cm


Specimen V5
Lat: 13.179182 Lon: -59.640723
Mar 7, 2019
iNat 21024761

Mar 7, 2019. Max Linear Dimension approx 43 cm. In the Seaward Slope of a fringing reef.

Apr 4, 2023   View iNaturalist Record 199606743

Feb 16, 2024. The colony is entirely dead View iNaturalist Record 199606743


Specimen V6
Lat: 13.179182Lon: -59.640723
Mar 7, 2019
iNat 1024597

Max Linear Dimension in surface view, approx 57 cm


Specimen V7
Lat: 13.179157Lon: -59.640704
Mar 23, 2015
https://www.inaturalist.org/observations/19973671

Scale is 30 cm. Estimated Maximum Linear Dimension: 46 cm