LEAF DIMENSIONS OF TRANSPLANTS OF THALASSIA-TESTUDINUM IN A MEXICAN CARIBBEAN REEF LAGOON

Thalassia testudinum Banks ex Konig in a Mexican Caribbean reef lagoon showed considerable differences in leaf length and width between thre e sampling stations. A reciprocal transplantation experiment between t hese stations was completed in July 1991. After one and a half years o f observation, no significant differences in leaf length were recorded among the transplants from different origins. Although differences in leaf width diminished between the transplants from different origins, leaf width showed less plasticity than leaf length, and at one statio n, significant small differences were still evident after 2 years.