Proceedings of the Ninth International Polychaete Conference
Author : N. J. Maciolek
Publisher :
Page : 600 pages
File Size : 30,32 MB
Release : 2009
Category : Polychaeta
ISBN : 9781869773748
Author : N. J. Maciolek
Publisher :
Page : 600 pages
File Size : 30,32 MB
Release : 2009
Category : Polychaeta
ISBN : 9781869773748
Author : N. J. Maciolek
Publisher : Magnolia Press
Page : 581 pages
File Size : 28,61 MB
Release : 2009
Category : Polychaeta
ISBN : 186977373X
Author :
Publisher :
Page : 214 pages
File Size : 19,30 MB
Release : 2007
Category : Polychaeta
ISBN :
Author : International Polychaete Conference 10, 2011, Lecce
Publisher :
Page : 358 pages
File Size : 46,79 MB
Release : 2011
Category :
ISBN :
Author :
Publisher :
Page : pages
File Size : 38,17 MB
Release : 1984
Category :
ISBN :
Author : Günter Purschke
Publisher : Walter de Gruyter GmbH & Co KG
Page : 1241 pages
File Size : 43,86 MB
Release : 2019-03-18
Category : Science
ISBN : 3110381788
This book is the first in a series of 4 volumes in the Handbook of Zoology series about morphology, anatomy, reproduction, development, ecology, phylogeny and systematics of Annelida. This first volume covers members of the so-called basal radiation and the first part of Sedentaria. It is supplemented by chapters on the history of annelid research, their fossil record, and an introduction to the phylogeny of annelids and their position in the tree of life. In the latter chapter the history of their systematic is reviewed giving an almost complete picture of systematic-scientific progress especially in the past years which changed our view on annelid phylogeny dramatically. The most basal annelids, lately united as Palaeoannelida, represent two families of aberrant polychaetes formerly often suggested to be highly derived which now give us a fresh look on how the ancestral annelid may have looked like. These lack certain key characters such as nuchal organs and possess rather simple nervous systems which now likely represent primitive character states. In this basal radiation the first taxon of apparently unsegmented and achaetigerous animals is positioned, the Sipuncula. Most likely another group of platyhelminth-like and unsegmented and even chaeta-lees annelids, Lobatocerebridae falls into this basal radiation. The section of Sedentaria starts with Orbiniida, a taxon characterized by elongated, thread-like worms which do not have anterior appendages like palps and comprises several families representing members of the Meiofauna. These minute worms often inhabiting the interstitial spaces in marine sands are suggested to have evolved by progenesis. The second higher taxon is represented by Cirratuliformia comprising nine families of typical sedentary polychaetes each of which showing a remarkable variation of the annelid body plan. Members of this taxon usually exhibit many annelid characters but certain also lack the most typical prostomial appendages, the palps.
Author : Daniel H. Shain
Publisher : John Wiley & Sons
Page : 384 pages
File Size : 38,30 MB
Release : 2009-04-22
Category : Science
ISBN : 0470455195
Annelids offer a diversity of experimentally accessible features making them a rich experimental subject across the biological sciences, including evolutionary development, neurosciences and stem cell research. This volume introduces the Annelids and their utility in evolutionary developmental biology, neurobiology, and environmental/ecological studies, including extreme environments. The book demonstrates the variety of fields in which Annelids are already proving to be a useful experimental system. Describing the utility of Annelids as a research model, this book is an invaluable resource for all researchers in the field.
Author : International Polychaete Conference (6, 1998, Curitiba)
Publisher :
Page : 675 pages
File Size : 49,82 MB
Release : 2000
Category : Polychaeta
ISBN :
Author :
Publisher :
Page : pages
File Size : 12,85 MB
Release : 1991
Category :
ISBN :
Author : Jeffrey G. Richards
Publisher : Academic Press
Page : 549 pages
File Size : 31,63 MB
Release : 2009-03-10
Category : Science
ISBN : 0080877990
Periods of environmental hypoxia (Low Oxygen Availability) are extremely common in aquatic systems due to both natural causes such as diurnal oscillations in algal respiration, seasonal flooding, stratification, under ice cover in lakes, and isolation of densely vegetated water bodies, as well as more recent anthropogenic causes (e.g. eutrophication). In view of this, it is perhaps not surprising that among all vertebrates, fish boast the largest number of hypoxia tolerant species; hypoxia has clearly played an important role in shaping the evolution of many unique adaptive strategies. These unique adaptive strategies either allow fish to maintain function at low oxygen levels, thus extending hypoxia tolerance limits, or permit them to defend against the metabolic consequences of oxygen levels that fall below a threshold where metabolic functions cannot be maintained. The aim of this volume is two-fold. First, this book will review and synthesize the adaptive behavioural, morphological, physiological, biochemical, and molecular strategies used by fish to survive hypoxia exposure and place them within an environmental and ecological context. Second, through the development of a synthesis chapter this book will serve as the cornerstone for directing future research into the effects of hypoxia exposures on fish physiology and biochemistry. The only single volume available to provide an in-depth discussion of the adaptations and responses of fish to environmental hypoxia Reviews and synthesizes the adaptive behavioural, morphological, physiological, biochemical, and molecular strategies used by fish to survive hypoxia exposure Includes discussion of the evolutionary and ecological consequences of hypoxia exposure in fish