. Atoll research bulletin. Coral reefs and islands; Marine biology; Marine sciences. Figure 3. Rivulus marmoratus, male. Figure 2. Rivulus marmoratus, hermaphrodite A lower percentage of male fish (2%) has been described in populations from Utila, Bay Islands, Honduras and a limited outcrossed, heterozygous population (-2%) has resulted here (Taylor et al., 2001). It is further intriguing to note that the Utila population (135 km distant from Twin Cays) appears to operate under a completely different genetic system with minimal outcrossing. Thus, the male "issue" continues to be one
. Atoll research bulletin. Coral reefs and islands; Marine biology; Marine sciences. Figure 3. Rivulus marmoratus, male. Figure 2. Rivulus marmoratus, hermaphrodite A lower percentage of male fish (2%) has been described in populations from Utila, Bay Islands, Honduras and a limited outcrossed, heterozygous population (-2%) has resulted here (Taylor et al., 2001). It is further intriguing to note that the Utila population (135 km distant from Twin Cays) appears to operate under a completely different genetic system with minimal outcrossing. Thus, the male "issue" continues to be one of the great unanswered questions in R. marmoratus research. It may be that although outcrossing is intermittent and infrequent in all populations it appears to have persisted in the Belize Cays for over a. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Smithsonian Institution. Press; National Research Council (U. S. ). Pacific Science Board; Smithsonian Institution; National Museum of Natural History (U. S. ); United States. Bureau of Sport Fisheries and Wildlife. Washington, D. C. : [Smithsonian Press]
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