[Coral-List] September Spawn Barbados

[Angelique Brathwaite]

Hi,

Spawning observations for Barbados.

September 8th & 9th - no spawning

September 10th

1) Region (Island): Barbados
2) Site (Reef): Batts Rock (West Coast)
3) Spawning date: Sept 10, 2009
4) Tide: high tide at 11:57 pm, low tide at 7:08 pm
5) Species: Montastrea annularis 
6) Sunset time: 6:23pm
7) Time gamete bundle setting was observed: 8:50 pm
8) Time spawning was observed : 9:05 pm started, and ended around 9:45 pm
9) Approximate percentage of population that spawned and approximate 
percentage of individual colonies that spawned :  Approximately  50-60% of polyps on any given colony spawned and around 10% of  the colonies observed spawned

September 11th

1) Region (Island)   Barbados   
2) Site (Reef)   Batts Rock (West coast)   
3) Spawning date   11 September, 2009 - exactly one week after September full moon. 
4) Tide    High tide at 8:01 pm   
5) Species    Montastrea annularis
 6) Sunset time   6:02 pm   
7) Time gamete bundle setting was observed    8:30 pm
   8) Time spawning was observed (detailed information such as the range 
of spawning times and when the majority of corals spawned is appreciated)     Release of first egg bundles at 9:00pm, spawning continued in other colonies until 9:30 pm
 9) Approximate percentage of population that spawned and approximate 
percentage of individual colonies that spawned   Very difficult to estimates, but a round 80% polyps on a spawning colony released egg bundles and perhaps 60% of colonies were spawning.   

September 11th - no spawning 

Angelique Brathwaite
Marine Biologist
Coastal Zone Management Unit
Bay St. St. Michael
BB11156

Phone: (246) 228 5950/51/52 ext 231 
Fax: (246)228 5956
e-mail: abrathwaite at coastal.gov.bb
skype: seaeggz