File:American malacological bulletin (1987) (17536039663).jpg

Title: American malacological bulletin
Identifier: americanmal4519861987amer (find matches)
Year: 1983 (1980s)
Authors: American Malacological Union
Subjects: Mollusks; Mollusks
Publisher: (Hattiesburg, Miss. ?) : (American Malacological Union)
Contributing Library: Smithsonian Libraries
Digitizing Sponsor: Biodiversity Heritage Library

View Book Page: Book Viewer
About This Book: Catalog Entry
View All Images: All Images From Book
Click here to view book online to see this illustration in context in a browseable online version of this book.

Text Appearing Before Image:
Fig. 8. Mangrove Fringe, Lake Surprise, Key Largo, Florida (Epimangle, Tidal Canal, Mangrove Channel Floor and Delta): 1 = Caulerpa verticillata: Elysia subornata; 2 = Cladophoropsis sp.: Ercolania funerea; 3 = Halimeda incrassata: Elysia tuca; 4 = Avrainvillea nigricans: Costasiella ocellifera; 5 = Udotea conglutinata: Elysia patina; 6 = Caulerpa paspaloides: Oxynoe azuropunctata, Elysia subornata, Ascobulla ulla; 7 = filamentous Rhodophyta: Hermaea cruciata.
Text Appearing After Image:
Fig. 9. Mangrove Channel Floor, Twin Cays Main Channel, Belize: 1 = Halimeda incrassata: Elysia tuca; 2 = Thalassia testudinum: Elysia serca; 3 = Penicillus capitatus Lamarck: not colonized. soft, flocculent, and highly organic. The water is rich in dissolved organic matter draining from shallow mangrove areas in the interior of the island, and reaches high temperatures (34°C in June 1985) if tides ebb in late after- noon. As in the main channel, algae of the channel floor are sparsely colonized, except at ridges at the mouth of the chan- nel, or in patches of algae located at channel junctions. CHANNEL EPIMANGLE (EPM): Buttress-roots of Rhizophora mangle L. extend along the banks of mangrove channels, at times to a depth of > 1 m. These buttresses sup- port dense growths of Caulerpa just below the surface, par- ticularly where partially shaded by the Rhizophora canopy (Fig. 10). Algae here are isolated from most silt of the chan- nel floor, and support a diverse and moderately dense com- munity of ascoglossans. Optimal conditions appear to occur in narrow, deep channels with high flow and complete shading, as in Hidden Creek and Grouper Garden Channel, Twin Cays. This habitat is poorly represented in most of the Florida Keys, where mangroves are often more fringing growths in shallow water and there is a poor development of epimanglic algae.

Note About Images