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Sur la présence en Méditerranée de Garveia franciscana (Torrey 1902) (Cnidaria, Hydroida) = Occurrence of Garveia franciscana in the Mediterranean Sea
Morri, C. (1982). Sur la présence en Méditerranée de Garveia franciscana (Torrey 1902) (Cnidaria, Hydroida) = Occurrence of Garveia franciscana in the Mediterranean Sea. Cah. Biol. Mar. 23(4): 381-391
In: Cahiers de Biologie Marine. Station Biologique de Roscoff: Roscoff. ISSN 0007-9723, more
Peer reviewed article

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Keywords
    Marine; Brackish water

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  • Morri, C.

Abstract
    Garveia franciscana (Torrey) has been found to be common in two coastal lagoons in the Northern Adriatic, Italy, in salinities between 20 and 30 per mil. G. franciscana is a cosmopolitan tropical to temperate brackish species living in meso-polyhaline shallow waters. It requires some water movement and high concentrations of organic matter in the bottom sediments. Its presence in the Northern Adriatic can be interpreted as an example of so-called "sub-atlanticism" of the Northern Adriatic, or simply as an accidental introduction by ships. A critical comparison with the other Mediterranean species of the genus, G. grisea (Motz-Kossowska, 1905), is provided; and the morphology and ecology of both the species are considered.

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