Abstract
Distribution and abundance of Tisbe species were studied throughout a period of 3 years at 3 stations in the Lagoon of Venice (Italy). At 2 other stations samples were taken occasionally, as also at the Lido station (open sea). Twelve species may be considered as common inhabitants of the lagoon, and 3 species appear to be occasional transients, compared to the 9 species found at the Lido. A comparison of the physical data shows that the stations were similar in temperature and salinity, but differed primarily in pH values, sediment characteristics, algal substratum and faunal benthic community. The fact that remarkable differences in species composition and distribution of Tisbe could be observed between the various parts of the lagoon and the lagoon and the open sea, indicates that temperature and salinity are not so important for species diversity as are biotic factors. A particularly strong difference existed between samples taken at the bottom and from pilings, which constitute a very special biotope for the benthic communities in the lagoon and seem to be a preferred habitat for T. lagunaris and T. cucumariae. The data suggest that there is a certain interaction between T. holothuriae and the other species. Whenever T. holothuriae was abundant, the other species were rare, but T. clodiensis, T. dobzhanskii (Stations 1 and 2) and Tisbe sp. (Station 3) attained high relative abundance whenever T. holothuriae decreased considerably in number. T. holothuriae represents certainly the hardiest species of the lagoon, displaying a great ability to cope with stress conditions, even those present in the interior lagoon where strong fluctuations in salinity, temperature, pH and oxygen prevail.
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Literature Cited
Battaglia, B.: Il polimorfismo adattativo e fattori della selezione nel copepode Tisbe reticulata Bocquet. Archo Oceanogr. Limnol. 11, 19–69 (1959)
Battaglia, B.: Advances and problems of ecological genetics in marine animals. Genetics today, In: Proc. int. Congr. Genet. (10, The Hague) 2, 451–463 (1964)
— Cultivation of marine copepods for genetic and evolutionary research. Helgoländer wiss. Meeresunters. 20, 385–392 (1970)
— e G. D'Avella: Differenziamento di caratteri geno-geografici nel copepode Tisbe furcata (Baird). La tolleranza alle variazioni di salinità. Boll. Zool. 31, 1233–1241 (1964)
— e G. Fava: Prime osservazioni sulla genetica di popolazioni naturali e sperimentali di Tisbe clodiensis n. sp. (Copepoda Harpacticoida). Riv. Biol. 61, 1–19 (1968)
— e G. Finco: Fattori biotici e selezione naturale in copepodi del genere Tisbe. Atti Ist. veneto Sci. 127, 363–370 (1969)
— and I. Lazzaretto: Effect of temperature on the selective value of genotypes of the copepod Tisbe reticulata. Nature, Lond. 215, 999–1001 (1967)
Brian, A.: Le biocenosi dei pali nella Laguna veneta. Atti. Soc. Sci. Lett. Genova 3 (fasc. 2), 121–142 (1938)
Comaschi, A.: Studio sulla biomassa zooplanctonica nella laguna di Venezia. II. Giugno 1961–Giugno 1962. Atti Ist. veneto Sci. 130, 117–146 (1972)
— and D. Voltolina: Hydrological data from the surface waters of the lagoon of Venice. Atti Ist. Veneto Sci. 131, 35–58 (1973)
D'Ancona, U., A. Faganelli, F. Ranzoli e V. Marchesoni: Il trofismo della Laguna Veneta e la vivificazione marina. Archo Oceanogr. Limnol. 9, 11–280 (1954)
Fava, G.: Etudes sur la compétition interspécifique dans le genre Tisbe (Copepoda Harpacticoida) Proc. 5th Eur. mar. Biol. Symp., 348 pp. Ed. by B. Battglia. Padova: Piccin 1972
Franco, P.: Condizioni fisiche e chimiche delle acque lagunari nel portocanale di Malamocco. I. Giugno 1960–Giugno 1961. Archo Oceanogr. Limnol. 12, 225–255 (1962)
— Condizioni fisiche e chimiche delle acque lagunari nel porto-canale di Malamocco. II. Giugno 1961–Giungo 1962. Archo Oceanogr. Limnol. 13, 155–186 (1964)
Kunz, H. und G. Kunz: Ökologische Untersuchungen an Strandgewässern Südwestafrikas. Namib Meer 4, 41–64 (1973)
Marcus, A. und F.D. Por: Die Copepoden der polyhalinen Lagunen Sinoe (Schwarzes Meer-Rumänische Künsten). Trav. Mus. Hist. nat. Gr. Antipa 7, 105–126 (1961)
Parise, A. e I. Lazzaretto: Misure di popolazione sul Copepoda Tisbe furcata (Baird) (Harpacticoida). Atti Memorie Accad. patavina 79, 1–11 (1966)
Rigo, L.: Ricerche sistematico-ecologiche sui cirripedi della Laguna Veneta. Archo Oceanogr. Limnol. 2, 15–46 (1942)
Vatova, A.: Le zoocenosi della laguna veneta. Thalassia 3 (10), 1–28 (1940)
— Gli echinodermi della Laguna Veneta. Nova Thalassia 1, 1–13 (1950)
Volkmann-Rocco, B.: Etude de quatre espèces jumelles du groupe Tisbe reticulata Bocquet (Copepoda, Harpacticoida). Archs Zool. exp. gén 114, 317–348 (1973)
Voltolina, D.: Fioritura di fitoplancton nella laguna veneta. Archo Oceanogr. Limnol. 16, 275–279 (1970)
— A phytoplankton bloom in the lagoon of Venice. Archo Oceanogr. Limnol. 18, 1–18 (1973)
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Communicated by B. Battaglia, Padua
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Fava, G., Volkmann, B. Tisbe (Copepoda: Harpacticoida) species from the Lagoon of Venice. I. Seasonal fluctuations and ecology. Marine Biology 30, 151–165 (1975). https://doi.org/10.1007/BF00391589
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DOI: https://doi.org/10.1007/BF00391589