silt-loving coral

Dr.R. Jayabaskaran jaybas at
Tue Jan 14 20:12:05 EST 2003

In reply to the message of Dr. Bert W. Hoeksema

The climate of Gulf of Kachchh, India is dry and has low rainfall, high
salinity, temperature and tidal amplitude.
The average annual rainfall is about 400mm.
Tidal amplitude varies from 3.0 to 6.0 meter.
Surface salinities vary from 35.2 to 39.4 ppt.
The water temperature exceeds 35 degree centigrade in extreme summer and
drops below 15 in extreme winter.
Hence, Low salinity may not be the key factor in determining the
occurrence of Pseudosiderastrea tayami Yabe and Sugiyama, 1935

Kind regards,
R. Jeyabaskaran

Dr. R. Jeyabaskaran
Research Associate
Biological Oceanography Division
National Institute of Oceanography
Goa 403 004, India
Phone: 91(0)832 2456700,2456701 Ext No-4252
Fax  : 91(0)832 2456703
e-mail:jaybas at
       jeybas at
       jeybas1 at


On Mon, 13 Jan 2003, Hoeksema, B.W. wrote:

 In reply to the message of Dr.R. Jayabaskaran:

 In Indonesia, relatively dense populations of Pseudosiderastrea tayami Yabe
and Sugiyama, 1935
 may co-occur with abundant Oulastrea crispata (Lamarck, 1816) corals.
 This this is likely the case on reefs near river outlets with much
 siltation (e.g. in Jakarta Bay, off Jakarta, and in the Makassar Strait
 off Makassar). However, there are also reefs with freshwater inflow (e.g.
 at Tulamben, Bali) where both species can be found in very clear water.
 Siltation may not be the key-factor determining the occurrence of these
 species, but low salinity.

 Best regards,

 Bert Hoeksema

 Dear All,

         Recently I surveyed the coral reefs of Gulf of Kachchh, India.
 During my survey I observed that the coral Pseudosiderastrea tayami Yabe
 and Sugiyama, 1935 was commonly distributed in shallow areas near
 mangroves where the silting rate was very high. I would like to know "
 Which coral species in the world has high survival rate in muddy
 Kind regards,
 R. Jeyabaskaran

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