Author: Theodor Mortensen
Publisher:
ISBN:
Category : Echinodermata
Languages : en
Pages : 340

Get Book Here

Book Description

Author: Herbert Clifton Chadwick
Publisher:
ISBN:
Category : Echinodermata
Languages : en
Pages : 64

Get Book Here

Book Description

Author: Theodor Mortensen
Publisher:
ISBN:
Category : Echinodermata
Languages : en
Pages : 340

Get Book Here

Book Description

Author: Theodor Mortensen
Publisher:
ISBN:
Category : Echinodermata
Languages : en
Pages : 80

Get Book Here

Book Description

Author: Michel Jangoux
Publisher: CRC Press
ISBN: 9789061916468
Category : Science
Languages : en
Pages : 312

Get Book Here

Book Description

Author: Brian K. Hall
Publisher: Gulf Professional Publishing
ISBN: 9780127309354
Category : Nature
Languages : en
Pages : 466

Get Book Here

Book Description
A classic problem in evolutionary biology is the origin of larvae - how and why did they occur? Indeed, it has often been suggested that many entirely unique body plans first originated as retained larvae of ancestral organisms. But what of the larvae themselves? What developmental and evolutionary forces shape and constrain them? These questions and others are dealt with by this international team of leading zoologists and developmental biologists. Intended to contribute to a continuing dialectic, this book presents diverse opinions as well as manifold conclusions. Certain to challenge and intrique, The Origin and Evolution of Larval Forms should be a part of the library of every evolutionary and developmental biologist interested in larvae and their significance.

Author: G. Czihak
Publisher: Springer Science & Business Media
ISBN: 3642659640
Category : Science
Languages : en
Pages : 719

Get Book Here

Book Description
Sea urchin eggs are objects of wonder for the student who sees them for the first time under the microscope. The formation of the fertil ization membrane after insemination, the beauty of mitotic cleavage, the elegant swimming of embryos, remain an esthetic pleasure even for the eyes of seasoned investigators. But sea urchin eggs have other, more practical, advantages: they lend themselves to surgical operation without difficulty and they heal perfectly; they can be obtained in very large amounts and represent thus an extremely favorable material for biochemists and molecular embryologists. It is not surprising that, in view of these exceptional advantages, sea urchin eggs have attracted the interest of innumerable biologists since O. HERTWIG discovered the fusion of the pronuclei (amphimixy), in Paracentrotus lividus, almost a century ago. The purpose of the present book is to present, in a complete and orderly fashion, the enormous amount of information which has been gathered, in the course of a hun dred years of sea urchin embryology. JOSEPH NEEDHAM, in 1930, was still able to present all that was known, at that time, on the biochemistry of all possible species of developing eggs and embryos in his famous "Chemical Embryology" (Cambridge University Press) . It would no longer be possible for one man to write a modern version of what was a "Bible" for the young embryologists of forty years ago.

Author: Jean-Pierre Feral
Publisher: CRC Press
ISBN: 9789058095282
Category : Science
Languages : en
Pages : 356

Get Book Here

Book Description
The Echinodermata is a phylum of marine invertebrates with a fossil record reaching back to the Precambrian. Major elements of the benthic macrofauna, they play a significant role in the dynamics of the ecosystems and are choice biological models in the life sciences, from ecology to genomics. This title offers 50 papers presented at the sixth European Conferences on Echinoderms (ECE), covering population biology, biodiversity, anatomy and functional morphology, physiology and behavior, biological cycles, and resource potential. This book reflects the great diversity of its contributors, offering an opportunity to cover a broad range of important questions in a single, authoritative reference.

Author: Megumi F. Strathmann
Publisher: University of Washington Press
ISBN: 0295743247
Category : Science
Languages : en
Pages : 682

Get Book Here

Book Description
This reference work is designed to provide background information on an array of northeastern Pacific marine invertebrate species so that they can be more easily included in comparative studies of morphology, cell biology, reproduction, embryology, larval biology, and ecology. It is meant to serve biologists who are new to the field as well as experienced investigators who may not be familiar with the invertebrate fauna of the northern Pacific Coast. The species discussed in this volume are mostly from the cold temperate waters of the San Juan Archipelago, near Puget SOund and the Strait of Georgia, but the information and methods given will be useful in laboratories from Alaska to central California and applicable to some extend in other coastal or inland facilities. An introductory chapter discusses basic prodcedures for collecting and maintaining mature specimens, for initiating spawning, and for culturing embryos and larvae in the laboratory. Subsequent chapters summarize reproduction and development in thirty different invertebrate groups and provided ercent references through which additional information can be traced, cite monographs or keys needed to identify species, and give methods useful for studying an array of selected species. Available information on habitat, diet, reproductive mode, egg size, developmental pattern, developmental times, larval type, and conditions for settlement and metamorphosis is reported for over 450 species.

Author:
Publisher: Academic Press
ISBN: 0128170735
Category : Science
Languages : en
Pages : 552

Get Book Here

Book Description
Echinoderms, Volume 151, the latest release in the Methods in Cell Biology series, highlights advances in the field, with this update presenting chapters on Echinoderm Genome Databases, analysis of gene regulatory networks, using ATAC-seq and RNA-seq to increase resolution in GRN connectivity, multiplex cis-regulatory analysis, experimental approaches GRN/signal pathways, BACs, analysis of chromatin accessibility using ATAC-seq, analysis of sea urchin proteins /Click IT, CRISPR/Cas9-mediated genome editing in sea urchins, super-resolution and in toto imaging of echinoderm embryos, and methods for analysis of intracellular ion signals in sperm, eggs and embryos. - Presents clear, concise protocols provided by experts who have established the echinoderms as a model systems - Highlights new advances in the field, with this update presenting interesting chapters on echinoderms