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The biota of reef-flats and limestone cliffs near Jeddah, Saudi Arabia
Hughes, R.N. (1977). The biota of reef-flats and limestone cliffs near Jeddah, Saudi Arabia. J. Nat. Hist. 11(1): 77-96
In: Journal of Natural History. Taylor & Francis: London. ISSN 0022-2933; e-ISSN 1464-5262, more
Peer reviewed article  

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Keywords
    Aquatic sciences > Marine sciences > Ecology > Marine ecology
    Behaviour > Migrations
    Biota
    Composition > Community composition
    Mortality causes
    Motion > Tidal motion > Tides
    Reefs > Biogenic deposits > Coral reefs
    Spawning seasons
    Wave effects
    Gastropoda [WoRMS]; Sargassum C.Agardh, 1820 [WoRMS]
    ISW, Saudi Arabia [Marine Regions]
    Marine/Coastal

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  • Hughes, R.N., more

Abstract
    The Jeddah reef-flat is subject to marked seasonal changes. Mortalities of reef fish and invertebrates may occur during winter. High summer temps and salinity, coinciding with low seas, cause migrations of certain gastropods towards the breaker zone. Sargassum sp grows densely in the breaker zone from late spring to late November. Thereafter heavy seas tear up the fronds which contribute to the inshore detritus. Many invertebrates commence breeding in early spring. A comparison of the faunas of limestone cliffs from Jeddah, Port Sudan, the extreme north and south of the Red Sea, and Aldabra Atoll suggests that the Jeddah fauna is impoverished by the limitation of suitable intertidal surface imposed by the lack of tides and by the moderate exposure to wave action.

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