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The fish community of East Cape tidal pools and an assessment of the nursery function of this habitat

1985; Taylor & Francis; Volume: 20; Issue: 1 Linguagem: Inglês

10.1080/02541858.1985.11447907

0254-1858

L.E. Beckley,

Marine and fisheries research

AbstractFish occurring in tidal pools in the lower balanoid zone near Port Elizabeth were examined by visual census and rotenone collections. Numerically, Clinidae constituted 28% of the community, Sparidae 23%, Gobiidae 17% and the Cheilodactylidae 12%, while eleven other families contributed to the remaining 20%. The 44 species recorded were classified as either residents (e.g. Clinidae or Gobiidae) or transients. The transient species were chiefly juvenile Sparidae, Cheilodactylidae and Mugllidae although numerous tropical vagrants also occurred in the summer months. Tidal pools, when compared with other coastal habitats, were found to be an important nursery area for some of the transient species, particularly Sparodon durbanensis, Diplodus cervinus hottentotus, Chirodactylus brachydactylus and Chellodactylus fasciatus.Die visgemeenskappe van getypoele naby Port Elizabeth is deur middel van visuele sensusse asook vergiftingsmetodes bestudeer. Clinidae het tot 28% van die gemeenskap bygedra, Sparidae 23%, Gobiidae 17% en Cheilodactylidae 12% terwyl elf ander families tot die oorblywende 20% bygedra het. Vier-en-veertig spesies is gevang en wond as permanente of tydelike inwoners geklassifiseer. Die tydelike spesies is hoofsaaklik klein Sparidae, Cheilodactylidae en Mugilidae alhoewel tropiese swerwers in die somermaande voorkom. Dit is gevind dat getypoele as 'n belangrike kweekgebied vir die tydelike spesies, in besonder Sparodon durbanensis, Diplodus cervinus hottentotus, Chirodactylus brachydactylus en Cheilodactylus fasciatus, dien.