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Coppejans, E., T. Beeckman & De Wit (1992). The seagrass and associated Vegetation of Gazi Bay (Kenya).
6361
10.1007/978-94-017-3288-8_7 [view]
Coppejans, E.; Beeckman, H.; De wit, M.
1992
The seagrass and associated macroalgal vegetation of Gazi Bay (Kenya)
The Ecology of Mangrove and Related Ecosystems
59-75
Publication
The seagrasses and macroalgal vegetation of Gazi Bay ( at approximately 50 km south of Mombasa) have been studied by means of 88 releves along 7 transects. Correlation between the distribution of the seagrasses and some abiotic factors (particle size fractions, chemical composition of the substrate) is not well marked. Nevertheless a general zonation and succesion of seagrasses could be established: 1, a transition zone between the mangal and the seagrass beds is covered by Boodleopsis pusilla; 2, the pioneer association Halophila ovalis+Halodule wrightii forms low sandy bumps at the upper limit of the seagrass beds, but also occurs in the whole midlittoral sandlayers have recently been accumulated; 3, the climax vegetation of the intertidal zone seems to be Thalassia hemprichii which sometimes is associated with Cymodocea rotundata and C. serrulata, certainly in deeper ppols and close to low water mark; Halimedia opuntia, Gracilaria salicornia are also frequent in this vegetation type; 4, from low water at neap tide downwards patches of monospecific Enthalus acoroides vegetation can also occur. 5, from mean low water down approximately-1 m mixed meadows of Thalassia, C. serrulata, C. rotundata and Halodule uninervis are well developed, the seaweeds Halimedia macroloba and Avrainvillea obscura are also typical for this zone; locally patches of Syringodium isoetifolium grow on small bumps and Halophila stipulacea grows as a pioneer on bare sand; 6, from- 1m downwards the whole lagoon is covered by homogeneous, monospecific Thalassodendron ciliatum meadows, locally replaced by E. acoroides .
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Kenya for Acanthophora spicifera (M.Vahl) Børgesen, 1910 
Kenya for Amphiroa fragilissima (Linnaeus) J.V.Lamouroux, 1816 
Kenya for Amphiroa rigida J.V.Lamouroux, 1816 
Kenya for Avrainvillea obscura (C.Agardh) J.Agardh, 1887 
Kenya for Boodleopsis pusilla (F.S.Collins) W.R.Taylor, A.B.Joly & Bernatowicz, 1953 
Kenya for Bryopsis hypnoides J.V.Lamouroux, 1809 
Kenya for Caulerpa sertularioides (S.G.Gmelin) M.A.Howe, 1905 
Kenya for Ceramium strictum (Kützing) Rabenhorst, 1847 
Kenya for Chaetomorpha crassa (C.Agardh) Kützing, 1845 
Kenya for Cladophora patentiramea (Montagne) Kützing, 1849 
Kenya for Cymodocea serrulata (R.Brown) Ascherson & Magnus 
Kenya for Enhalus acoroides (Linnaeus f.) Royle, 1839 
Kenya for Enteromorpha clathrata (Roth) Greville, 1830 
Kenya for Enteromorpha flexuosa (Wulfen) J.Agardh, 1883 
Kenya for Enteromorpha kylinii Bliding, 1948 
Kenya for Enteromorpha ramulosa (Smith) Carmichael, 1833 
Kenya for Gracilaria corticata (J.Agardh) J.Agardh, 1852 
Kenya for Gracilaria salicornia (C.Agardh) E.Y.Dawson, 1954 
Kenya for Gracilaria verrucosa (Hudson) Papenfuss, 1950 
Kenya for Halimeda opuntia (Linnaeus) J.V.Lamouroux, 1816 
Kenya for Halodule uninervis (Forsskål) Ascherson, 1882 
Kenya for Halodule wrightii Ascherson, 1868 
Kenya for Halophila minor (Zollinger) den Hartog, 1957 
Kenya for Halophila ovalis (R.Brown) J.D.Hooker, 1858 
Kenya for Halophila stipulacea (Forsskål) Ascherson, 1867 
Kenya for Hypnea cornuta (Kützing) J.Agardh, 1851 
Kenya for Hypnea hamulosa (Esper) J.V.Lamouroux, 1813 
Kenya for Hypnea nidifica J.Agardh, 1852 
Kenya for Hypnea valentiae (Turner) Montagne, 1841 
Kenya for Laurencia papillosa (C.Agardh) Greville, 1830 
Kenya for Nereodictyon imitans Gerloff, 1960 
Kenya for Padina boryana Thivy, 1966 
Kenya for Rosenvingea orientalis (J.Agardh) Børgesen, 1914 
Kenya for Sphacelaria rigidula Kützing, 1843 
Kenya for Sphacelaria tribuloides Meneghini, 1840 
Kenya for Syringodium isoetifolium (Ascherson) Dandy, 1939 
Kenya for Thalassia hemprichii (Ehrenberg) Ascherson, 1871 
Kenya for Thalassodendron ciliatum (Forsskål) den Hartog, 1970 
Kenya for Udotea orientalis A.Gepp & E.S.Gepp, 1911 
Kenya for Ulva lactuca Linnaeus, 1753 
Kenya for Ulva reticulata Forsskål, 1775 
Kenya for Zostera (Zosterella) capensis Setchell