Acoelomate And Pseudocoelomate Metazoans
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Acoelomate And Pseudocoelomate Metazoans
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Author : Arthur C. Giese
language : en
Publisher: Elsevier
Release Date : 2013-09-17
Acoelomate And Pseudocoelomate Metazoans written by Arthur C. Giese and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-09-17 with Science categories.
Reproduction of Marine Invertebrates, Volume I: Acoelomate and Pseudocoelomate Metazoans is a collection of papers that deals with the evolution of reproductive mechanisms and behavior in marine invertebrates. This collection starts with terminologies and basic events in marine invertebrate reproduction, including the method of estimating sexual reproductive activity, as well as the timing and patterns involved. The book notes that temperatures, salinities, or food availability should be favorable when the young are produced and when they are developing. One paper shows that the reproductive rhythm is dynamic and in some species is latitude-dependent. Other papers discuss the reproductive cycles of different marine invertebrates such as the Porifera, Cnidaria, Nemertinea, and Nematoda. These papers include topics on asexual reproduction, regeneration, sexual reproduction, and development, and then explain in detail the development of certain invertebrates from their kinorhynchs state (embryonic), to the molting stages, juvenile stages, then to adulthood. This book can be useful for marine biologists, marine ecologists, and students involved in marine biological and physical sciences.
Reproduction Of Marine Invertebrates
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Author : Arthur Charles Giese
language : en
Publisher:
Release Date : 1974
Reproduction Of Marine Invertebrates written by Arthur Charles Giese and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1974 with Invertebrates categories.
Reproduction Of Marine Invertebrates Acoelomate And Pseudocoelomate Metazoans
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Author : Arthur Charles Giese
language : en
Publisher:
Release Date : 1974
Reproduction Of Marine Invertebrates Acoelomate And Pseudocoelomate Metazoans written by Arthur Charles Giese and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1974 with Science categories.
Fertilization In Protozoa And Metazoan Animals
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Author : Juan J. Tarin
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Fertilization In Protozoa And Metazoan Animals written by Juan J. Tarin and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
Reproduction is the origination of new organisms from pre-existing ones. Among more than 35 separated forms of reproduction including several types of gamogony, parthenogenesis, agamogenesis, fission and division, and plas motomy, the bisexual mode of reproduction via fertilization provides genetic variability that allows species to adapt quickly to competitive and constantly changing environments. Several excellent reviews and books have been written in the past to analyse the mechanisms of fertilization in different eukaryotic species. During the last few years, however, renewed attention has been paid to examining the process of oocyte fertilization at the cellular/molecular level not only within a single species/group but also through different phylogenetic lineages. As a result of this effort, knowledge of the molecular pathways used by oocytes and spermatozoa at fertilization has increased, but still many ques tions remain to be answered. Being aware of the necessity of providing an inte grated view of the process of fertilization, this book has been entirely devoted to reviewing the process of oocyte fertilization at the cellular/molecular level in two different and separated groups of eukaryotic organisms: protozoa and metazoan animals. The book is organized into six sections dealing with oocyte fertilization in protozoa, invertebrates, teleost fishes, amphibians, birds and mammals. These sections are followed by a summary/concluding chapter that provides a com parative overview of the process of fertilization in these groups of eukaryotes.
Invertebrate Embryology And Reproduction
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Author : Fatma El-Bawab
language : en
Publisher: Academic Press
Release Date : 2020-01-18
Invertebrate Embryology And Reproduction written by Fatma El-Bawab and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-01-18 with Science categories.
Invertebrate Embryology and Reproduction deals with the practical and theoretical objectives of the descriptive embryology of invertebrates, along with discussions on reproduction in these groups of animals. It explains several morphological and anatomical expressions in the field and covers the embryology of invertebrate animals, starting from the Protozoa, to the Echinodermata, the Protochordate and Tunicates. These groups include economically important aquatic invertebrates, such as crustaceans, as well as medically important invertebrates and economic arthropods. Each chapter is preceded by the taxonomy of the discussed phylum and/or the species to enable the reader to locate the systematic position. Covers phylum definition, general characteristics, classification, reproduction, agametic reproduction, gametic reproduction, spawning, fertilization, development and embryogenesis Includes recent findings in the area, along with detailed figures and photos that illustrate important concepts Brings together difficult-to-obtain research data from the field, not only in Egyptian libraries, but globally, and previously only found through specialized references not widely available Clarifies descriptions with striking photos and electron microscopical studies of different species
Taxonomic Atlas Of The Benthic Fauna Of The Santa Maria Basin And Western Santa Barbara Channel Introduction Benthic Ecology Oceanography Platyhelminthes And Nemertea
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Author : Andrew L. Lissner
language : en
Publisher:
Release Date : 1993
Taxonomic Atlas Of The Benthic Fauna Of The Santa Maria Basin And Western Santa Barbara Channel Introduction Benthic Ecology Oceanography Platyhelminthes And Nemertea written by Andrew L. Lissner and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with Benthos categories.
Evolution Of Sexual Reproduction In Marine Invertebrates
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Author : Andrew (Andrey N.) Ostrovsky
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-12-16
Evolution Of Sexual Reproduction In Marine Invertebrates written by Andrew (Andrey N.) Ostrovsky and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-12-16 with Science categories.
Three major aspects that distinguish this book are that (1) it contains the most detailed analysis of the sexual reproduction (oogenesis, fertilization and embryonic incubation) in a particular phylum of the aquatic invertebrates (Bryozoa) ever made; this analysis is based on an exhaustive review of the literature on that topic published over the last 260 years, as well as extensive original histological, anatomical and morphological data obtained during studies of both extant and extinct species; (2) this broad analysis has made it possible to reconstruct the major patterns, stages and trends in the evolution of sexual reproduction in various bryozoan clades, showing numerous examples of parallelisms during transitions from broadcasting to embryonic incubation, from planktotrophic to non-feeding larvae and from lecithotrophy to placentation; corresponding shifts in oogenesis, fertilization and embryonic development are discussed in detail; and (3) the key evolutionary novelties acquired by Bryozoa are compared with similar innovations that have evolved in other groups of marine invertebrates, showing the general trends in the evolution of their sexual reproduction. Ecological background of these innovations is considered too. Altogether these aspects make the monograph an “Encyclopedia of bryozoan sexual reproduction,” offering an integral picture of the evolution of this complex phenomenon.
Reproduction And Development In Minor Phyla
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Author : T. J. Pandian
language : en
Publisher: CRC Press
Release Date : 2021-05-14
Reproduction And Development In Minor Phyla written by T. J. Pandian and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-05-14 with Science categories.
The 26 recognized minor phyla comprise aberrant clades, as most of them terminate as blind offshoots. Untied from the discussion on their phylogenesis of minor phyla, this book is largely devoted, for the first time, to aspects of reproduction and development in minor phyletics. The minor phyla are not as speciose (1,795 species/phylum) as the major phyla (157,066 species/phylum) are. The accumulation of deleterious genes causes inbreeding depression among progenies arising from parthenogenesis, clonal multiplication and selfing hermaphrodites. The reason for the limited species diversity in minor phyla is traced to (i) eutelism in 65.7% of minor phyletics and (ii) existence of 21.6% clonals, (iii) 6.4% parthenogens and (iv) 1.2% selfing hermaphroditism. Gonochorism obligately requires motility to search for a mate. The combination of low motility and gonochorism from Placozoa to hemocoelomatic minor phyla has limited diversity to
Oceanography And Marine Biology
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Author : Harold Barnes
language : en
Publisher: CRC Press
Release Date : 1999-01-01
Oceanography And Marine Biology written by Harold Barnes and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999-01-01 with Science categories.
A good quality annual review series that provides an important service to the sciences for both the general and the specialist reader. Oceanography and Marine Biology has succeeded in producing one admirably for more than 35 years. The quality of the paper, the printing and the presentation is excellent.--Times Higher Education Supplement
Advances In Marine Biology
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Author : Michael P. Lesser
language : en
Publisher: Academic Press
Release Date : 2013-01-17
Advances In Marine Biology written by Michael P. Lesser and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-01-17 with Science categories.
Advances in Marine Biology has been providing in-depth and up-to-date reviews on all aspects of marine biology since 1963 -- over 40 years of outstanding coverage! The series is well known for both its excellence of reviews and editing. Now edited by Michael Lesser (University of New Hampshire, USA), with an internationally renowned Editorial Board, the serial publishes in-depth and up-to-date content on a wide range of topics that will appeal to postgraduates and researchers in marine biology, fisheries science, ecology, zoology, and biological oceanography. Advances in Marine Biology has been providing in-depth and up-to-date reviews on all aspects of marine biology since 1963