Abstract:
Differences in the early stages of embryological development confirm the validity of the closely related salp species Ihlea racovitzai and Ihlea magalhanica. In the latter 8-12 oocytes and thus 8-12 follicles and uterine sacs are observed in the ovary; however most of them undergo a progressive degradation and only two embryos complete their development. In Ihlea racovitzai two embryos also develop but from the very beginning only the two successful follicles are found. © 1994 Springer-Verlag.
Referencias:
- Apstein, C., Die Thaliaceen der Plankton-Expedition (1894) B. Verteilung der Salpen.-Ergebn Plankt Exp, 2, pp. 1-68
- Bary, B.M., Notes on Ecology, Distribution and Systematics of Pelagic Tunicata from New Zealand (1960) Pacif Sci, 14 (2), pp. 101-121
- Berrill, N.J., Budding and development in Salpa (1950) Journal of Morphology, 87, pp. 553-606
- Braconnot, J.C., Etude du cycle annuel des salpes et dolioles en rade de Villefranche sur Mer (1963) ICES Journal of Marine Science, 28 (1), pp. 21-36
- Braconnot, J.C., Contribution à l'étude des stades successifs dans le cycle des Tuniciers pélagiques Salpides en Méditerranée (1973) Bull Inst Oceanogr Monaco, 71 (1424), pp. 2-27
- Brien, P., Embranchement des Tuniciers. Morphologie et reproduction. IV Les Thaliaces (1948) Traité de Zoologie, pp. 757-866. , P.P., Grasse, Masson, Paris
- Caldwell, M.C., The distribution of pelagic Tunicates, family Salpidae, in Antarctic and subantarctic waters (1966) Bull Southern California Acad Sci, 65 (1), pp. 1-16
- Esnal, G.B., Daponte, M.C., Stolon Development and some aspects of musculature in the characterization of Ihlea racovitzai (van Beneden, 1913) and Ihlea magalhanica (Apstein, 1894) (Tunicata, Thaliacea) (1990) Polar Biol, 10, pp. 265-268
- Esnal, G.B., Daponte, M.C., Casareto, B.E., Castro, R.J., Iasis zonaria (Pallas, 1774) (Tunicata, Thaliacea) de las costas argentinas (1987) Reproducción y distribución. Physis (Buenos Aires) Secc A, 45, pp. 69-77
- Fagetti, E., Salpas colectadas frente a las Costas Central y Norte de Chile (1959) Revista de Biología Marina, 9 (1-3), pp. 201-228
- Foxton, P., On Ihlea magalhanica (Apstein) (Tunicata, Salpidae) and Ihlea racovitzai (van Beneden) (1971) Discovery Rep, 35, pp. 179-198
- Godeaux, J.E.A., Urochordata-Thaliacea (1990) Reproductive Biology of invertebrates. Vol IV, Part B, pp. 453-469. , K.G.G., Adiyodi, Rita G., Adiyodi, Oxford & IBH Publ. Co., New Delhi
- Heron, A.C., Population Ecology of a Colonizing Species: The Pelagic Tunicate Thalia democratica. I. Individual Growth Rate and Generation Time (1972) Oecologia, 10, pp. 269-293
- Korotneff, A., Zur Embryologie von Salpa cordiformes-zonaria und musculosa-punctata (1896) Mitt Zool Stat Neapel, 12 (2), pp. 331-352
- Stadel, O., (1958) Die Salpen. From Deutsche antarktische Expedition 1938/9, pp. 199-207. , Geogr Kartogr Anstalt Mundus, Hamburg
- Sutton, M.F., The sexual development of Salpa fusiformis (Cuvier). Part I (1960) J Embryol Exp Morph, 8, pp. 268-290
- Thompson, H., (1948) Pelagic Tunicates of Australia, pp. 1-196. , Commonwealth Council for Scientific and Industrial Research, Melbourne
- Tregouboff, G., Rose, M., (1957) Manuel de planctonologie méditerranéenne, , Centre National de la Recherche Scientifique, Paris
- Yount, J.L., The taxonomy of the Salpidae (Tunicata) of the central Pacific Ocean (1954) Pacif Sci, 8 (3), pp. 276-330
Citas:
---------- APA ----------
Daponte, M.C. & Esnal, G.B.
(1994)
. Differences in embryological development in two closely related species: Ihlea racovitzai and Ihlea magalhanica (Tunicata, Thaliacea). Polar Biology, 14(7), 455-458.
http://dx.doi.org/10.1007/BF00239048---------- CHICAGO ----------
Daponte, M.C., Esnal, G.B.
"Differences in embryological development in two closely related species: Ihlea racovitzai and Ihlea magalhanica (Tunicata, Thaliacea)"
. Polar Biology 14, no. 7
(1994) : 455-458.
http://dx.doi.org/10.1007/BF00239048---------- MLA ----------
Daponte, M.C., Esnal, G.B.
"Differences in embryological development in two closely related species: Ihlea racovitzai and Ihlea magalhanica (Tunicata, Thaliacea)"
. Polar Biology, vol. 14, no. 7, 1994, pp. 455-458.
http://dx.doi.org/10.1007/BF00239048---------- VANCOUVER ----------
Daponte, M.C., Esnal, G.B. Differences in embryological development in two closely related species: Ihlea racovitzai and Ihlea magalhanica (Tunicata, Thaliacea). Polar Biol. 1994;14(7):455-458.
http://dx.doi.org/10.1007/BF00239048