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NameGrove, S.J., M.C. Little & P.J. Reay (1986). Tudor Creek Mombasa: the early life-history stages of fish and prawns 1985. Report of Overseas Development Administration Research Project R3888
SourceID6037
Type Publication
NoteUnidentified species were not entered.
AbstractThe project was based at KMFRI headquarters in Mombasa, with Tudor Creek (a fully saline area of mangroves, mud and open water) as the study area. Sampling mainly involved the use of plankton nets and fine-meshed beach seines, in all months from February to November, 1985. Sampling frequencies of hours, days and weeks were also employed in order to cover the diel, circatidal, semilunar and lunar cycles. From the samples, prawn post-larvae, fish eggs and larvae, and juvenile fish and prawns were sorted, identified as far as possible, and counted in order to provide data on their occurrence, distribution and abundance. Records of temperature, and some other abiotic parameters, were also maintained. The fish and prawn fauna of Tudor Creek, is described from the results of the seine-net sampling and is found to include 6 species of panaeid prawn and 135 species (49 families) of teleost fish; additional families were recorded only as larval stages in the plankton. Many of the fish occurred as juveniles, but very few of these were species commercially exploited on nearby reefs and trawling grounds. Differences have been found between the creek mouth and inner creek in terms of both planktonic and juvenile stages, and are associated with a gradient of decreasing depth and dissolved oxygen concentration, and increasing temperature and turbidity from the mouth inwards. One of the most conspicuous trends has been the decrease in fish egg density and diversitty along this gradient, which suggests that while the creek can be regarded as a fish and prawn nursery area, it is not an important spawning ground, at least for pelagic spawners. The existence of the gradient also results in tide-related changes in egg-density which are probably best explained in relation to the tidal incursion of egg-rich coastal water into the creek rather than tidal spawning cycles of adult fish. The latter have not been discounted, however, and may emerge from further analysis of data from individual taxa. No clear indication of general systematic seasonal changes in either the planktonic or juvenile stages were found, but the lowest catch-rates of some species of juveniles occurred during the early part of the SE Monsoon (April - July). Again further analysis of data from individual taxa of both planktonic and juvenile stages, and of the size-frequency data collected, may reveal clearer evidence of seasonal periodicity. The results are discussed in relation to the literature available on similar ecosystems in other tropical area, and in relation to the major problems encountered in carryng out the work. It is concluded that much has still to be learned about the role of mangrove creeks as nursery area, and also that this role is important in the context of future fisheries management and environmental monitoring. With this application in mind, it is recommended that future work should concentrate on the post-settlement juvenile stages rather than on the planktonic stages, and an argument is presented to support this view.
Taxa
(11)
Checked: verified by a taxonomic editorAcreichthys tomentosus (Linnaeus, 1758) (basis of record)
Checked: verified by a taxonomic editorAmblyrhynchotes spinosissimus (Regan, 1908) accepted as Checked: verified by a taxonomic editorTylerius spinosissimus (Regan, 1908) (basis of record)
Checked: verified by a taxonomic editorDraculo maugei (Smith, 1966) (basis of record)
Checked: verified by a taxonomic editorPolynemus plebius Broussonet, 1782 accepted as Checked: verified by a taxonomic editorPolydactylus plebeius (Broussonet, 1782) (basis of record)
Checked: verified by a taxonomic editorSiganus spinus (Linnaeus, 1758) (basis of record)
Checked: verified by a taxonomic editorSparidentex hasta (Valenciennes, 1830) (basis of record)
Checked: verified by a taxonomic editorSphyraena genie Klunzinger, 1870 accepted as Checked: verified by a taxonomic editorSphyraena qenie Klunzinger, 1870 (basis of record)
Unreviewed: has not been verified by a taxonomic editorSpratellomorpha delicatulus (basis of record)
Checked: verified by a taxonomic editorStolephorus heterolobus (Rüppell, 1837) accepted as Checked: verified by a taxonomic editorEncrasicholina heteroloba (Rüppell, 1837) (basis of record)
Checked: verified by a taxonomic editorStolephorus waitei Jordan & Seale, 1926 (basis of record)
Checked: verified by a taxonomic editorSyngnathus cyanospilus Bleeker, 1854 accepted as Checked: verified by a taxonomic editorHippichthys cyanospilos (Bleeker, 1854) (basis of record)
Distributions
(108)
Kenya for Checked: verified by a taxonomic editorAbudefduf saxatilis (Linnaeus, 1758)
Kenya for Checked: verified by a taxonomic editorAbudefduf sexfasciatus (Lacepède, 1801)
Kenya for Checked: verified by a taxonomic editorAcentrogobius cauerensis (Bleeker, 1853)
Kenya for Checked: verified by a taxonomic editorAcreichthys tomentosus (Linnaeus, 1758)
Kenya for Checked: verified by a taxonomic editorAeoliscus punctulatus (Bianconi, 1854)
Kenya for Checked: verified by a taxonomic editorAgrioposphyraena barracuda (Walbaum, 1792)
Kenya for Checked: verified by a taxonomic editorAlbula vulpes (Linnaeus, 1758)
Kenya for Checked: verified by a taxonomic editorAlectis ciliaris (Bloch, 1787)
Kenya for Checked: verified by a taxonomic editorAmblygobius albimaculatus (Rüppell, 1830)
Kenya for Checked: verified by a taxonomic editorAmblyrhynchotes honckenii (Bloch, 1785)
Kenya for Checked: verified by a taxonomic editorAmblyrhynchotes spinosissimus (Regan, 1908)
Kenya for Checked: verified by a taxonomic editorAtherinomorus duodecimalis (Valenciennes, 1835)
Kenya for Checked: verified by a taxonomic editorAtherinomorus lacunosus (Forster, 1801)
Kenya for Checked: verified by a taxonomic editorBothus myriaster (Temminck & Schlegel, 1846)
Kenya for Checked: verified by a taxonomic editorBothus pantherinus (Rüppell, 1830)
Kenya for Checked: verified by a taxonomic editorCanthigaster valentini (Bleeker, 1853)
Kenya for Checked: verified by a taxonomic editorCaranx ignobilis (Forsskål, 1775)
Kenya for Checked: verified by a taxonomic editorCheilio inermis (Forsskål, 1775)
Kenya for Checked: verified by a taxonomic editorCociella crocodila (Tilesius, 1814)
Kenya for Checked: verified by a taxonomic editorCrenidens crenidens (Forsskål, 1775)
Kenya for Checked: verified by a taxonomic editorCtenogobius nebulosus (Forsskål, 1775)
Kenya for Checked: verified by a taxonomic editorCymolutes lecluse (Quoy & Gaimard, 1824)
Kenya for Checked: verified by a taxonomic editorCynoglossus bilineatus (Lacepède, 1802)
Kenya for Checked: verified by a taxonomic editorCynoglossus lachneri Menon, 1977
Kenya for Checked: verified by a taxonomic editorCynoglossus zanzibarensis Norman, 1939
Kenya for Checked: verified by a taxonomic editorDactyloptena orientalis (Cuvier, 1829)
Kenya for Checked: verified by a taxonomic editorDiagramma pictum (Thunberg, 1792)
Kenya for Checked: verified by a taxonomic editorDraculo maugei (Smith, 1966)
Kenya for Checked: verified by a taxonomic editorFistularia commersonii Rüppell, 1838
Kenya for Checked: verified by a taxonomic editorFistularia petimba Lacepède, 1803
Kenya for Checked: verified by a taxonomic editorGerres acinaces Bleeker, 1854
Kenya for Checked: verified by a taxonomic editorGerres filamentosus Cuvier, 1829
Kenya for Checked: verified by a taxonomic editorGerres oyena (Forsskål, 1775)
Kenya for Checked: verified by a taxonomic editorHemiramphus far (Forsskål, 1775)
Kenya for Checked: verified by a taxonomic editorHerklotsichthys quadrimaculatus (Rüppell, 1837)
Kenya for Checked: verified by a taxonomic editorHistrio histrio (Linnaeus, 1758)
Kenya for Checked: verified by a taxonomic editorKyphosus bigibbus Lacepède, 1801
Kenya for Checked: verified by a taxonomic editorLactoria cornuta (Linnaeus, 1758)
Kenya for Checked: verified by a taxonomic editorLeiognathus berbis (Valenciennes, 1835)
Kenya for Checked: verified by a taxonomic editorLeiognathus equulus (Forsskål, 1775)
Kenya for Checked: verified by a taxonomic editorLeiognathus fasciatus (Lacepède, 1803)
Kenya for Checked: verified by a taxonomic editorLeptoscarus vaigiensis (Quoy & Gaimard, 1824)
Kenya for Checked: verified by a taxonomic editorLethrinus harak (Forsskål, 1775)
Kenya for Checked: verified by a taxonomic editorLethrinus lentjan (Lacepède, 1802)
Kenya for Checked: verified by a taxonomic editorLethrinus variegatus Valenciennes, 1830
Kenya for Checked: verified by a taxonomic editorLobotes surinamensis (Bloch, 1790)
Kenya for Checked: verified by a taxonomic editorMetapenaeus monoceros (Fabricius, 1798)
Kenya for Checked: verified by a taxonomic editorMugil cephalus Linnaeus, 1758
Kenya for Checked: verified by a taxonomic editorMulloidichthys flavolineatus (Lacepède, 1801)
Kenya for Checked: verified by a taxonomic editorNovaculichthys macrolepidotus (Bloch, 1791)
Kenya for Checked: verified by a taxonomic editorOstracion cubicus Linnaeus, 1758
Kenya for Checked: verified by a taxonomic editorPapilloculiceps longiceps (Cuvier, 1829)
Kenya for Checked: verified by a taxonomic editorParacitharus macrolepis (Gilchrist, 1904)
Kenya for Checked: verified by a taxonomic editorParaplagusia bilineata (Bloch, 1787)
Kenya for Checked: verified by a taxonomic editorParascorpaena mossambica (Peters, 1855)
Kenya for Checked: verified by a taxonomic editorParupeneus forsskali (Fourmanoir & Guézé, 1976)
Kenya for Checked: verified by a taxonomic editorParupeneus indicus (Shaw, 1803)
Kenya for Checked: verified by a taxonomic editorParupeneus macronema (Lacepède, 1801)
Kenya for Checked: verified by a taxonomic editorPenaeus indicus H. Milne Edwards, 1837
Kenya for Checked: verified by a taxonomic editorPenaeus latisulcatus Kishinouye, 1896
Kenya for Checked: verified by a taxonomic editorPenaeus monodon Fabricius, 1798
Kenya for Checked: verified by a taxonomic editorPenaeus semisulcatus De Haan, 1844 [in De Haan, 1833-1850]
Kenya for Checked: verified by a taxonomic editorPlatax pinnatus (Linnaeus, 1758)
Kenya for Checked: verified by a taxonomic editorPlatycephalus indicus (Linnaeus, 1758)
Kenya for Checked: verified by a taxonomic editorPlotosus lineatus (Thunberg, 1787)
Kenya for Checked: verified by a taxonomic editorPolynemus plebius Broussonet, 1782
Kenya for Checked: verified by a taxonomic editorPolynemus sexfilis Valenciennes, 1831
Kenya for Checked: verified by a taxonomic editorPomacentrus tripunctatus Cuvier, 1830
Kenya for Checked: verified by a taxonomic editorPomadasys argenteus (Forsskål, 1775)
Kenya for Checked: verified by a taxonomic editorPomadasys commersonnii (Lacepède, 1801)
Kenya for Checked: verified by a taxonomic editorPseudorhombus elevatus Ogilby, 1912
Kenya for Checked: verified by a taxonomic editorPterois mombasae (Smith, 1957)
Kenya for Checked: verified by a taxonomic editorSaurida gracilis (Quoy & Gaimard, 1824)
Kenya for Checked: verified by a taxonomic editorSaurida nebulosa Valenciennes, 1850
Kenya for Checked: verified by a taxonomic editorScolopsis Cuvier, 1814
Kenya for Checked: verified by a taxonomic editorScomberoides lysan (Forsskål, 1775)
Kenya for Checked: verified by a taxonomic editorScomberoides tol (Cuvier, 1832)
Kenya for Checked: verified by a taxonomic editorSiganus argenteus (Quoy & Gaimard, 1825)
Kenya for Checked: verified by a taxonomic editorSiganus canaliculatus (Park, 1797)
Kenya for Checked: verified by a taxonomic editorSiganus spinus (Linnaeus, 1758)
Kenya for Checked: verified by a taxonomic editorSiganus sutor (Valenciennes, 1835)
Kenya for Checked: verified by a taxonomic editorSillago sihama (Forsskål, 1775)
Kenya for Checked: verified by a taxonomic editorSparidentex hasta (Valenciennes, 1830)
Kenya for Checked: verified by a taxonomic editorSphyraena barracuda (Walbaum, 1792)
Kenya for Checked: verified by a taxonomic editorSphyraena genie Klunzinger, 1870
Kenya for Checked: verified by a taxonomic editorSphyraena jello Cuvier, 1829
Kenya for Checked: verified by a taxonomic editorSpratellomorpha bianalis (Bertin, 1940)
Kenya for Unreviewed: has not been verified by a taxonomic editorSpratellomorpha delicatulus
Kenya for Checked: verified by a taxonomic editorStolephorus commersonii Lacepède, 1803
Kenya for Checked: verified by a taxonomic editorStolephorus heterolobus (Rüppell, 1837)
Kenya for Checked: verified by a taxonomic editorStolephorus indicus (van Hasselt, 1823)
Kenya for Checked: verified by a taxonomic editorStolephorus insularis Hardenberg, 1933
Kenya for Checked: verified by a taxonomic editorStolephorus waitei Jordan & Seale, 1926
Kenya for Checked: verified by a taxonomic editorSyngnathoides biaculeatus (Bloch, 1785)
Kenya for Checked: verified by a taxonomic editorSyngnathus cyanospilus Bleeker, 1854
Kenya for Checked: verified by a taxonomic editorSyngnathus spicifer Rüppell, 1838
Kenya for Checked: verified by a taxonomic editorSynodus variegatus (Lacepède, 1803)
Kenya for Checked: verified by a taxonomic editorTerapon jarbua (Forsskål, 1775)
Kenya for Checked: verified by a taxonomic editorTerapon puta Cuvier, 1829
Kenya for Checked: verified by a taxonomic editorTerapon theraps Cuvier, 1829

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2013-01-12 18:30:12Z  created  db_admin
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