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Trophic adaption of Red Sea fishes to the eastern Mediterranean environment - Review and new data
Golani, D. (1993). Trophic adaption of Red Sea fishes to the eastern Mediterranean environment - Review and new data. Isr. J. Zool. 39: 391-402
In: Israel Journal of Zoology. Laser Pages Publishing: Jerusalem. ISSN 0021-2210, more
Peer reviewed article  

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Keyword
    Marine

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  • Golani, D.

Abstract
    The trophic adaptation of Red Sea fishes that colonized the Mediterranean via the Suez Canal (Lessepsian migrants) is reviewed. All species studied retained, as expected, their basic feeding habits. Some alterations were found in diet composition and prey size, compared with those of the populations in the source area. Insufficient knowledge of the abundance of most prey organisms in the Mediterranean makes it difficult to determine to what extent trophic adaptation is achieved by selection of preferred food. In the three families studied (Mullidae, Sphyraenidae, and Synodontidae), feeding habits play a negligible role in niche segregation between Lessepsian fishes and closely-related indigenous species in the Mediterranean; depth distribution is the main means of niche partitioning between these two groups of species. The division of Lessepsian fishes according to their feeding habits was compared to that of the source ichthyofauna in the Red Sea and of the recipient ichthyofauna in the eastern Mediterranean. The high proportion of planktivore colonizers may be attributed to their high mobility, mostly in large schools.

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