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When do fishes become juveniles?
AvGordon H. Copp,Karol Henselm. fl.
Inbunden, Engelska, 1999
1 626 kr
Skickas inom 10-15 vardagar
Metamorphosis and the transition from larvae or embryos to juveniles in fishes are important in order to answer, for example, questions about: (1) life-history styles and their modifications in evolutionary perspective and within current environmental demands; (2) the development and application of fisheries recruitment models, (3) the use of ontogenetic scales for interspecific comparisons, (4) the identification of ontogenetic shifts in resource use, and (5) the discovery of evolutionary interrelationships of species or genera. This volume is dedicated to recent studies and reviews of existing knowledge on this insufficiently-addressed area of ichthyology. Most of the papers in this volume were presented in Bratislava, Slovakia, at the 1st International Workshop of the Fish Ontogeny Network of Europe (FONE) in September 1997, a meeting sponsored in part by the European Commission. This volume emphasizes an integrated approach to the study of fish ontogeny, which is a process during which one event is related to another and everything is related to everything else, encompassing physiology, morphology, behaviour and niche. Within this comprehensive perspective, the papers in this volume are grouped along four major themes: reflections on early ontogeny and metamorphosis, organism-environment relationships, ontogeny of predator-prey interactions, and behaviour and ontogeny. Among other issues, the papers consider topics such as whether one can identify when fish metamorphosis ends, whether the larva period begins with hatching or with the onset of exogenous feeding, whether fish ontogeny is `saltatory' or `gradual', and whether larvae are eliminated in some fishes with direct development. The keynote paper of this volume reviews the main topics within contemporary paradigms and the final paper concludes that the onset of the juvenile period can be identified in some species, but precision remains problematic, emphasizing the need for further research in this dynamic area of fish biology.
Leopold Kronecker's Werke, Part 4
AvK. Hensel
Inbunden, Engelska, 2010
880 kr
Skickas inom 11-20 vardagar
Part 4: Uber die algebraisch auflosbaren Gleichungen I; Note sur les fonctions semblables des racines d'une equation; Sur quelques fonctions symetriques et sur les nombres de Bernoulli; Uber die algebraisch auflosbaren Gleichungen II; Uber Gleichungen des siebenten Grades; Sur la resolution de l'equation du cinquieme degree; Sur la theorie des substitutions; Mitteilung uber algebraische Arbeiten; Uber Abelsche Gleichungen; Einige entwickelungen aus der Theorie der algebraischen Gleichungen; Uber die symmetrischen Funktionen; Die Composition Abelscher Gleichungen; Die kubischen Abelschen Gleichungen des Bereichs $(\sqrt{-31})$; Zur Theorie der Abelschen Gleichungen; Uber eine Stelle in Jacobi's Aufsatz ""Observatiunculae ad theoriam aequationum pertinentes""; Sur une formule de Gauss; Uber die elliptischen Functionen, fur welche complexe Multiplication stattfindet; Uber die Anzahl der verschiedenen Classen quadratischer Formen von negativer Determinante; Uber eine neue Eigenschaft der quadratischen Formen von negativer Determinante; Uber die complexe Multiplication der elliptischen Functionen; Uber die Auflosung der Pell'schen Gleichung mittels elliptischer Functionen; Uber den Gebrauch der Dirichlet'schen Methoden in der Theorie der quadratischen Formen; Uber quadratische Formen von negativer Determinante; Uber die algebraischen Gleichungen, von denen die Theilung der elliptischen Functionen abhangt; Uber den vierten Gauss'schen Beweis des Reciprocitatsgesetzes fur die quadratischen Reste; Summirung der Gauss'schen Reihen $\sum^{h=n-1}_{h=0}e^{2h^2\pi i/n}$; Uber die Dirichlet'sche Methode der Werthbestimmung der Gauss'schen Reihen; Zur Theorie der elliptischen Functionen; Bemerkungen uber die Multiplication der elliptischen Functionen; Weitere Bemerkungen uber der elliptischen Functionen; Zur Theorie der elliptischen Functionen. (CHEL/224.4.H)
Vorlesungen über Zahlentheorie
Erster Band: Erste bis Dreiunddreissigste Vorlesung
AvL. Kronecker,K. Hensel
E-bok
PDF, Tyska, 2013
696 kr
Läs direkt efter köp
Vorlesungen über Zahlentheorie
Erster Band: Erste bis Dreiunddreissigste Vorlesung
AvL. Kronecker,K. Hensel
Häftad, Tyska, 2011
713 kr
Skickas inom 10-15 vardagar
When do fishes become juveniles?
AvG.H. Copp,Vladimír Kovácm. fl.
Häftad, Engelska, 2010
1 626 kr
Skickas inom 10-15 vardagar
Metamorphosis and the transition from larvae or embryos to juveniles in fishes are important in order to answer, for example, questions about: (1) life-history styles and their modifications in evolutionary perspective and within current environmental demands; (2) the development and application of fisheries recruitment models, (3) the use of ontogenetic scales for interspecific comparisons, (4) the identification of ontogenetic shifts in resource use, and (5) the discovery of evolutionary interrelationships of species or genera. This volume is dedicated to recent studies and reviews of existing knowledge on this insufficiently-addressed area of ichthyology. Most of the papers in this volume were presented in Bratislava, Slovakia, at the 1st International Workshop of the Fish Ontogeny Network of Europe (FONE) in September 1997, a meeting sponsored in part by the European Commission. This volume emphasizes an integrated approach to the study of fish ontogeny, which is a process during which one event is related to another and everything is related to everything else, encompassing physiology, morphology, behaviour and niche.Within this comprehensive perspective, the papers in this volume are grouped along four major themes: reflections on early ontogeny and metamorphosis, organism-environment relationships, ontogeny of predator-prey interactions, and behaviour and ontogeny. Among other issues, the papers consider topics such as whether one can identify when fish metamorphosis ends, whether the larva period begins with hatching or with the onset of exogenous feeding, whether fish ontogeny is 'saltatory' or 'gradual', and whether larvae are eliminated in some fishes with direct development. The keynote paper of this volume reviews the main topics within contemporary paradigms and the final paper concludes that the onset of the juvenile period can be identified in some species, but precision remains problematic, emphasizing the need for further research in this dynamic area of fish biology.
Eurasian Huchen, Hucho hucho
Largest Salmon of the World
AvJ. Holcík,K. Henselm. fl.
Inbunden, Engelska, 1988
2 489 kr
Skickas inom 10-15 vardagar
The need to gather available data on the Eurasien huchen - an important salmonid species - has been forced by a plain and, unfortunately, common fact of our times: the numbers and distribution of this biggest of salmonids have begun to decline and its range has begun to shrink. A seminar on the huchen - the European form of the species Hucha hucha - held in Zilina in February 1973 as a result of a suggestion of the Section for the Conservation of Fauna of the Slovak Zoological Society, indicated very clearly the sad situation. Data on the biology of the huchen are regrettably scarce despite several recent papers (Ivaska 1951, Svetina 1962, Prawochenski and Kolder 1968) with the aim of filling this gap. Supposing that without a thorough knowledge it is practically impossible to conserve any plant or animal species, the participants of the seminar concluded that the existing knowledge on the huchen should be compiled in an exhaustive monograph. The first such outline originated in 1977 under the authorship of J. Holcik, K. Hensel and L. Skacel, and was submitted as a research report to some of the central authorities. Even during the compilation of the report it became evident, however, that there is no difference between the huchen and its relative, the taimen. Consequently, we immediately began revising our first report, which took over three years.
Eurasian Huchen, Hucho hucho
Largest Salmon of the World
AvL. Skacel,J. Nieslanikm. fl.
E-bok
PDF, Engelska, 2012
2 833 kr
Läs direkt efter köp
The need to gather available data on the Eurasien huchen - an important salmonid species - has been forced by a plain and, unfortunately, common fact of our times: the numbers and distribution of this biggest of salmonids have begun to decline and its range has begun to shrink. A seminar on the huchen - the European form of the species Hucha hucha - held in Zilina in February 1973 as a result of a suggestion of the Section for the Conservation of Fauna of the Slovak Zoological Society, indicated very clearly the sad situation. Data on the biology of the huchen are regrettably scarce despite several recent papers (Ivaska 1951, Svetina 1962, Prawochenski and Kolder 1968) with the aim of filling this gap. Supposing that without a thorough knowledge it is practically impossible to conserve any plant or animal species, the participants of the seminar concluded that the existing knowledge on the huchen should be compiled in an exhaustive monograph. The first such outline originated in 1977 under the authorship of J. Holcik, K. Hensel and L. Skacel, and was submitted as a research report to some of the central authorities. Even during the compilation of the report it became evident, however, that there is no difference between the huchen and its relative, the taimen. Consequently, we immediately began revising our first report, which took over three years.
Eurasian Huchen, Hucho hucho
Largest Salmon of the World
AvJ. Holcík,K. Henselm. fl.
Häftad, Engelska, 2011
2 165 kr
Skickas inom 10-15 vardagar
The need to gather available data on the Eurasien huchen - an important salmonid species - has been forced by a plain and, unfortunately, common fact of our times: the numbers and distribution of this biggest of salmonids have begun to decline and its range has begun to shrink. A seminar on the huchen - the European form of the species Hucha hucha - held in Zilina in February 1973 as a result of a suggestion of the Section for the Conservation of Fauna of the Slovak Zoological Society, indicated very clearly the sad situation. Data on the biology of the huchen are regrettably scarce despite several recent papers (Ivaska 1951, Svetina 1962, Prawochenski and Kolder 1968) with the aim of filling this gap. Supposing that without a thorough knowledge it is practically impossible to conserve any plant or animal species, the participants of the seminar concluded that the existing knowledge on the huchen should be compiled in an exhaustive monograph. The first such outline originated in 1977 under the authorship of J. Holcik, K. Hensel and L. Skacel, and was submitted as a research report to some of the central authorities. Even during the compilation of the report it became evident, however, that there is no difference between the huchen and its relative, the taimen. Consequently, we immediately began revising our first report, which took over three years.
When do fishes become juveniles?
AvK. Hensel,Vladimir Kovacm. fl.
E-bok
PDF, Engelska, 2013
2 044 kr
Läs direkt efter köp
Metamorphosis and the transition from larvae or embryos to juveniles in fishes are important in order to answer, for example, questions about: (1) life-history styles and their modifications in evolutionary perspective and within current environmental demands; (2) the development and application of fisheries recruitment models, (3) the use of ontogenetic scales for interspecific comparisons, (4) the identification of ontogenetic shifts in resource use, and (5) the discovery of evolutionary interrelationships of species or genera. This volume is dedicated to recent studies and reviews of existing knowledge on this insufficiently-addressed area of ichthyology. Most of the papers in this volume were presented in Bratislava, Slovakia, at the 1st International Workshop of the Fish Ontogeny Network of Europe (FONE) in September 1997, a meeting sponsored in part by the European Commission. This volume emphasizes an integrated approach to the study of fish ontogeny, which is a process during which one event is related to another and everything is related to everything else, encompassing physiology, morphology, behaviour and niche. Within this comprehensive perspective, the papers in this volume are grouped along four major themes: reflections on early ontogeny and metamorphosis, organism-environment relationships, ontogeny of predator-prey interactions, and behaviour and ontogeny. Among other issues, the papers consider topics such as whether one can identify when fish metamorphosis ends, whether the larva period begins with hatching or with the onset of exogenous feeding, whether fish ontogeny is `saltatory'' or `gradual'', and whether larvae are eliminated in some fishes with direct development. The keynote paper of this volume reviews the main topics within contemporary paradigms and the final paper concludes that the onset of the juvenile period can be identified in some species, but precision remains problematic, emphasizing the need for further research in this dynamic area of fish biology.

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K. Hensel – författare

When do fishes become juveniles?

Leopold Kronecker's Werke, Part 4

Vorlesungen über Zahlentheorie

Vorlesungen über Zahlentheorie

When do fishes become juveniles?

Eurasian Huchen, Hucho hucho

Eurasian Huchen, Hucho hucho

Eurasian Huchen, Hucho hucho

When do fishes become juveniles?

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