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ORDER Salmoniformes j FAMILY Salmomdae SUB-F AMIL Y Coregonidae Salmoninae Thymallinae GENUS Oncorhynchus Salmo Salvelinus SPECIES Salmo trutta Salmo salar Fig. 1. (Legendre, 1980). The three main genera (Salmo, Oncorhynchus, Salvelinus) known to day appeared more recently (at the start of the Pleistocene) from this common ancestry (Jones, 1959). The separation of the American and Euro-Asiatic continents and the subse quent succession of glaciation ages of the Pleistocene and recent eras has not only resulted in the differentiation of these three genera but also the appearances of numerous lower level taxa (Jones, 1959; Hoar, 1976). However, according to Tchernavin (1939), anadromous behaviour appeared at the start of the Ice Age. However, Balon (1980) considers that this behaviour existed before speciation in the Salmonid family and that the marine types, mainly of the genus Salmo would have formed the origin of the freshwater forms. From this well-argued theory of Balon (1980), Thorpe (1982) deduced that the salmonids were in fact primitive teleosts, probably of marine origin, and that certain species may have progressively lost their anadromous behaviour.
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ORDER Salmoniformes j FAMILY Salmomdae SUB-F AMIL Y Coregonidae Salmoninae Thymallinae GENUS Oncorhynchus Salmo Salvelinus SPECIES Salmo trutta Salmo salar Fig. 1. (Legendre, 1980). The three main genera (Salmo, Oncorhynchus, Salvelinus) known to day appeared more recently (at the start of the Pleistocene) from this common ancestry (Jones, 1959). The separation of the American and Euro-Asiatic continents and the subse quent succession of glaciation ages of the Pleistocene and recent eras has not only resulted in the differentiation of these three genera but also the appearances of numerous lower level taxa (Jones, 1959; Hoar, 1976). However, according to Tchernavin (1939), anadromous behaviour appeared at the start of the Ice Age. However, Balon (1980) considers that this behaviour existed before speciation in the Salmonid family and that the marine types, mainly of the genus Salmo would have formed the origin of the freshwater forms. From this well-argued theory of Balon (1980), Thorpe (1982) deduced that the salmonids were in fact primitive teleosts, probably of marine origin, and that certain species may have progressively lost their anadromous behaviour.
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This book contains a collection of 24 state-of-the-art contributions in the area of Information Systems Engineering. It was compiled as a tribute to Professor Janis Bubenko on the occasion of his retirement from the University of Stockholm in February 2000. The contributions are arranged in three sections: - Information Society, with such subjects as B2B E-Commerce, human imperfection, stream data management and enterprise modeling - Approaches to Information Systems Engineering, discussing data warehouse development, web-enabled methods, reuse, and meta-data - Concepts for Information Systems, on more fundamental notions such as time, abstraction, co-operation, intention and information All the contributors are well-known and highly reputed scholars in the area of Information Systems Engineering from all over the world.
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Information systems engineering : state of the art and research themes.
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Broschiert. Zustand: Gut. XIII, 337 S. : Ill., graph. Darst. Das hier angebotene Buch stammt aus einer teilaufgelösten wissenschaftlichen Bibliothek und trägt die entsprechenden Kennzeichnungen (Rückenschild, Instituts-Stempel.); Schnitt und Einband sind etwas staubschmutzig; der Buchzustand ist ansonsten ordentlich und dem Alter entsprechend gut. Text in ENGLISCHER Sprache! Sprache: Englisch Gewicht in Gramm: 560. Artikel-Nr. 1605801
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Biology and Ecology of the Brown and Sea Trout
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Biology and Ecology of the Brown and Sea Trout
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Taschenbuch. Zustand: Neu. Neuware -ORDER Salmoniformes j FAMILY Salmomdae SUB-F AMIL Y Coregonidae Salmoninae Thymallinae GENUS Oncorhynchus Salmo Salvelinus SPECIES Salmo trutta Salmo salar Fig. 1. (Legendre, 1980). The three main genera (Salmo, Oncorhynchus, Salvelinus) known to day appeared more recently (at the start of the Pleistocene) from this common ancestry (Jones, 1959). The separation of the American and Euro-Asiatic continents and the subse quent succession of glaciation ages of the Pleistocene and recent eras has not only resulted in the differentiation of these three genera but also the appearances of numerous lower level taxa (Jones, 1959; Hoar, 1976). However, according to Tchernavin (1939), anadromous behaviour appeared at the start of the Ice Age. However, Balon (1980) considers that this behaviour existed before speciation in the Salmonid family and that the marine types, mainly of the genus Salmo would have formed the origin of the freshwater forms. From this well-argued theory of Balon (1980), Thorpe (1982) deduced that the salmonids were in fact primitive teleosts, probably of marine origin, and that certain species may have progressively lost their anadromous behaviour.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 300 pp. Englisch. Artikel-Nr. 9781852333171
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Biology and Ecology of the Brown and Sea Trout : State of the Art and Research Themes
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Springer London, Springer London, 2000
ISBN 10: 1852333170
ISBN 13: 9781852333171
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Taschenbuch. Zustand: Neu. Druck auf Anfrage Neuware - Printed after ordering - ORDER Salmoniformes j FAMILY Salmomdae SUB-F AMIL Y Coregonidae Salmoninae Thymallinae GENUS Oncorhynchus Salmo Salvelinus SPECIES Salmo trutta Salmo salar Fig. 1. (Legendre, 1980). The three main genera (Salmo, Oncorhynchus, Salvelinus) known to day appeared more recently (at the start of the Pleistocene) from this common ancestry (Jones, 1959). The separation of the American and Euro-Asiatic continents and the subse quent succession of glaciation ages of the Pleistocene and recent eras has not only resulted in the differentiation of these three genera but also the appearances of numerous lower level taxa (Jones, 1959; Hoar, 1976). However, according to Tchernavin (1939), anadromous behaviour appeared at the start of the Ice Age. However, Balon (1980) considers that this behaviour existed before speciation in the Salmonid family and that the marine types, mainly of the genus Salmo would have formed the origin of the freshwater forms. From this well-argued theory of Balon (1980), Thorpe (1982) deduced that the salmonids were in fact primitive teleosts, probably of marine origin, and that certain species may have progressively lost their anadromous behaviour. Artikel-Nr. 9781852333171
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Biology and Ecology of the Brown and Sea Trout: State Of The Art And Research Themes
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Information Systems Engineering: State of the Art and Research Themes
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