The surface currents affecting Jamaica were studied using drifting envelopes which were released in batches of 50 at 10 nautical mile intervals along transects in the Cayman and Caribbean Seas. Returns of these drifters suggest that the waters surrounding Jamaica originate from two
sources, the eastern Caribbean and the Bahamian region. There is evidence of a predominant inflow of surface water into the Cayman and Caribbean Seas through the Windward and Jamaica Passages. This finding is discussed in conjunction with the suggestion that the origin of Jamaican reef fish
stocks may be supplemented by recruitment of larvae from up-current fish stocks. A discussion of the origin and probable effects of surface drifting pollutants is also included.
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