. Atoll research bulletin. Coral reefs and islands; Marine biology; Marine sciences. 185 Halophila stipulacea (Forsskal) Ascherson Location and sampling sites. Southeastern coast of St. Joseph atoll, Seychelles, 37 m depth, 3 March 1989, one plant (Fig. 7), collected by M. and D. Littler; African atoll, South Island, southeastern coast, 31 m depth, 28 February 1989, one plant, collected by N. I. Selin. H. stipulacea is widely known in the Indian Ocean. The species has never been mentioned for the African and St. Joseph atolls in the Seychelles (Fig. 2) in the literature (Bandeira and Gell, 200
. Atoll research bulletin. Coral reefs and islands; Marine biology; Marine sciences. 185 Halophila stipulacea (Forsskal) Ascherson Location and sampling sites. Southeastern coast of St. Joseph atoll, Seychelles, 37 m depth, 3 March 1989, one plant (Fig. 7), collected by M. and D. Littler; African atoll, South Island, southeastern coast, 31 m depth, 28 February 1989, one plant, collected by N. I. Selin. H. stipulacea is widely known in the Indian Ocean. The species has never been mentioned for the African and St. Joseph atolls in the Seychelles (Fig. 2) in the literature (Bandeira and Gell, 2003; Seagrasses of the Indian Ocean, CD, SIDCA) until recently and are places new for this species. There, at depths from 3 to 17 m,//. stipulacea grows together with solitary plants of Th. ciliatum, Halimeda spp. and other algae (Kalugina-Gutnik et al., 1992). H. stipulacea grows at depths varying from 0 to 70 m, mostly from 0 to 18 m (den Hartog, 1970; Phillips and Menez, 1988; Mangroves and seagrasses of the Indian Ocean, CD, SIDCA). Duarte (1991) wrote that the lowest depth of//. stipulacea is 50 m. However, in the Gulf of Elat, the Red Sea, plants of H. stipulacea were found growing at 50 to 70 m deep (Lipkin, 1977; Hulings, 1979; Lipkin et al., 2003). The growth of this species at depths of 31 to 37 m along the Seychelles is new ecological data for//, stipulacea from the Indian Ocean (Kalugina-Gutnik et al. 1992).. Figure 7. Herbarium specimen of Halophila stipulacea (Forsskal) Ascherson,southeastern coast of St. Joseph atoll, Seychelles, 37 m depth. Enhalus acoroides (L.) Royle Location and sampling sites. Saya de Malha Bank, Mascarene subwater ridge, 20 m depth, 25 July 1981, six plants (Fig. 8), collected by E. Z. Gabrielian. In the Indian Ocean, this species is sparsely found (den Hartog, 1970). About a century ago, E. acoroides was registered at Mahe and Praslin islands, Seychelles (den Hartog, 1970). More recent publications (Kalugina-Gutnik et al., 1992; Bandeira and
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