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When do fishes become juveniles?
  • Language: en
  • Pages: 282

When do fishes become juveniles?

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...

Parental Care: Evolution, Mechanisms, And Adaptive Significance
  • Language: en
  • Pages: 715

Parental Care: Evolution, Mechanisms, And Adaptive Significance

Advances in the Study of Behavior presents its first thematic volume, focusing on the physiological and behavioral mechanisms underlying parental care. The book discusses parental care both within and across taxa, with coverage of invertebrates and early vertebrates, fishes, amphibia, reptiles, mammals, birds, and nonhuman primates. A running theme throughout the chapters shows that parental care is anchored to the ecology, reproductive physiology, and embryonic development of a species. Coverage also includes mechanisms of parental care, including analysis of the stimuli that parents respond to and how parental care is initiated, maintained, and terminated. Individual differences within species are also explored, examining stable differences in maternal style, how they arise, and the consequences for both mother and infant.

Environmental biology of European cyprinids
  • Language: en
  • Pages: 233

Environmental biology of European cyprinids

None

Biology of the Arctic Charr
  • Language: en
  • Pages: 573

Biology of the Arctic Charr

Proceedings of the International Symposium on Arctic charr held in Winnipeg, 4-8 May 1981, on the campus of the University of Manitoba.

Alternative Life-History Styles of Animals
  • Language: en
  • Pages: 621

Alternative Life-History Styles of Animals

None

The Skull, Volume 1
  • Language: en
  • Pages: 602

The Skull, Volume 1

In this authoritative three-volume reference work, leading researchers bring together current work to provide a comprehensive analysis of the comparative morphology, development, evolution, and functional biology of the skull.

Ecomorphology of fishes
  • Language: en
  • Pages: 300

Ecomorphology of fishes

Ecomorphology is the comparative study of the influence of morphology on ecological relationships and the evolutionary impact of ecological factors on morphology in different life intervals, populations, species, communities, and evolutionary lineages. The book reviews early attempts at qualitative descriptions of ecomorphological patterns in fishes, especially those of the Russian school. More recent, quantitative studies are emphasised, including multivariate approaches to ecomorphological analysis, the selection of functionally important ecological and morphological variables to analyze, an experimental approach using performance tests to examine specific hypotheses derived from functiona...

The Eurasian Huchen, Hucho hucho
  • Language: en
  • Pages: 285

The Eurasian Huchen, Hucho hucho

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 fillin...

Alternative life-history styles of fishes
  • Language: en
  • Pages: 326

Alternative life-history styles of fishes

None

The Physiology of Developing Fish: Viviparity and Posthatching Juveniles
  • Language: en
  • Pages: 436

The Physiology of Developing Fish: Viviparity and Posthatching Juveniles

FROM THE PREFACE: Dramatic changes occur in the physiology of most animals during their development. Among the vertebrates, birds are entirely oviparous, live for variable periods in a cleidoic egg, and show fundamental alterations in excretion, nutrition, and respiration at the time of hatching. In contrast, the eutherian mammals are all viviparous, depend on the maternal circulation and a specialized placenta to provide food, exchange gases, and discharge wastes. The physiology of both mother and fetus is highly specialized during gestation and changes fundamentally at the time of birth. Fishes exemplify both the oviparous and the viviparous modes of development, with some examples that are intermediate between the two. In these two volumes, selected reviews of many, but not all, aspects of development are presented. The chapters in Part A relate to the physiology of eggs and larvae; those in Part B concern viviparity and the physiology of posthatching juvenile fishes.