Download or read book Salinity Sensitivity of Embryos of the Antarctic Sea Urchin Sterechinus Neumayeri written by Dominique Alexandria Cowart and published by ProQuest. This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The Antarctic sea urchin, Sterechinus neumayeri, develops more slowly than its warm water counterparts, although the pattern of early development is the same as in other sea urchin species. There is available data on the effects of temperature on S. neumayeri embryos, however information about impacts of salinity on their development is not well documented. In this study, two and four parts per thousand decreases in standard salinity were tested to see if the developmental rate of S. neumayeri embryos would be further slowed by hyposmotic stress. During the austral summer of 2005, adult urchins were collected from McMurdo Sound and spawned at McMurdo Station, Antarctica. Immediately after fertilization, individual zygotes were placed in three separate salinity treatments within the wells of a 96-well microtiter plate modified to maintain constant temperatures. The salinity treatments were 34 (n=265), 32 (n=89) and 30 [per thousand] (n=198). Early cleavage stages were observed up until the formation of a morula, approximately 35-38 hours post fertilization (h PF) on average for S. neumayeri at -1.86 °C. For standard development (96 % viable zygotes), 47% of these embryos passed the morula stage within 36 h PF at 34 [per thousand], whereas 4.6% of the embryos in 30 [per thousand] developed to morula by 36 h PF. No embryos in 32 [per thousand] developed to morula stage by this time. This is the first study to investigate the responses of S. neumayeri embryos to a decrease in salinity. Antarctic sea urchins have the ability to alter marine ecosystem structure due to their grazing and movements about the sediment, and if S. neumayeri experiences lowered recruitment numbers due to the influx of freshwater from the melting of ice shelves attributed to climate warming, the benthic environment of Antarctica could be substantially impacted.
Download or read book Temperature and pressure tolerances of embryos and larvae of the Antarctic sea urchin Sterechinus neumayeri Echinodermata written by P.A. Tyler and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biology Ecology and Management of Crown of Thorns Starfish written by Morgan Pratchett and published by MDPI. This book was released on 2018-04-03 with total page 281 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a printed edition of the Special Issue "Biology, Ecology and Management of Crown-of-Thorns Starfish" that was published in Diversity
Download or read book Advances in Marine Biology written by and published by Academic Press. This book was released on 2013-10-28 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 its excellent 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 many 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--over 40 years of outstanding coverage! The series is well known for 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 many topics that will appeal to postgraduates and researchers in marine biology, fisheries science, ecology, zoology, and biological oceanography
Download or read book Observations on the Gametogenic Ecology of the Antarctic Sea Urchin Sterechinus Neumayeri written by Henry Ernst and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Functional Response of the Antarctic Sea Urchin Sterechinus Neumayeri to Environmental Change and Extreme Events in the Context of a Warming Climate written by Rebecca Ida De Leij and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Stressors in the Marine Environment written by Martin Solan and published by Oxford University Press. This book was released on 2016-03-10 with total page 471 pages. Available in PDF, EPUB and Kindle. Book excerpt: A multitude of direct and indirect human influences have significantly altered the environmental conditions, composition, and diversity of marine communities. However, understanding and predicting the combined impacts of single and multiple stressors is particularly challenging because observed ecological feedbacks are underpinned by a number of physiological and behavioural responses that reflect stressor type, severity, and timing. Furthermore, integration between the traditional domains of physiology and ecology tends to be fragmented and focused towards the effects of a specific stressor or set of circumstances. This novel volume summarises the latest research in the physiological and ecological responses of marine species to a comprehensive range of marine stressors, including chemical and noise pollution, ocean acidification, hypoxia, UV radiation, thermal and salinity stress before providing a perspective on future outcomes for some of the most pressing environmental issues facing society today. Stressors in the Marine Environment synthesises the combined expertise of a range of international researchers, providing a truly interdisciplinary and accessible summary of the field. It is essential reading for graduate students as well as professional researchers in environmental physiology, ecology, marine biology, conservation biology, and marine resource management. It will also be of particular relevance and use to the regulatory agencies and authorities tasked with managing the marine environment, including social scientists and environmental economists.
Download or read book Research and Discoveries written by Michael A. Lang and published by . This book was released on 2013 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Physiological Developmental and Behavioral Effects of Marine Pollution written by Judith S Weis and published by Springer Science & Business Media. This book was released on 2013-08-13 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt: Synthesizing decades of work, but up-to-date, this book focuses on organism-level responses to pollutants by marine animals, mainly crustaceans, molluscs, and fishes. Emphasizing effects on physiological processes (feeding/digestion, respiration, osmoregulation), life-cycle (reproduction [including endocrine disruption], embryo development, larval development, developmental processes later in life (growth, regeneration, molting, calcification, cancer), and behaviour, the book also covers bioaccumulation and detoxification of contaminants, and the development of tolerance. The major pollutants covered are metals, organic compounds (oil, pesticides, industrial chemicals), nutrients and hypoxia, contaminants of emerging concern, and ocean acidification. Some attention is also devoted to marine debris and noise pollution.
Download or read book Phagocytosis in vitro and in vivo in the Antarctic sea urchin Sterechinus neumayeri at 0oC written by J.C.S. BORGES and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Toxicological Evaluation of Chemical Interactions written by and published by . This book was released on 1994 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Seasonality of feeding and nutritional status during the austral winter in the Antarctic sea urchin Sterechinus neumayeri written by S. BROCKINGTON and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Health Perspectives written by and published by . This book was released on 1993 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Oceanic Abstracts written by and published by . This book was released on 1996 with total page 826 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Genetic and Molecular Ecotoxicology written by and published by . This book was released on 1994 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Antarctic Bibliography written by and published by . This book was released on 1989 with total page 670 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Reproduction and Development of Marine Invertebrates written by W. Herbert Wilson (Jr.) and published by . This book was released on 1994 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: In Reproduction and Development of Marine Invertebrates a group of internationally recognized researchers assesses the state of current knowledge in the field and identifies future avenues of research. Comprehensive in scope, the book treats all levels of biological organization, from the molecular level to communities of organisms. After a brief historical overview that identifies the conceptual underpinnings of twentieth-century invertebrate zoology and embryology, the book is organized by developmental stages. The authors first present chapters on oogenesis, spermatogenesis, fertilization, and embryonic development. A subsequent section--arranged phylogenetically to encompass annelids, priapulans, molluscs, bryozoans, and echinoderms--covers larval morphology and evolution. The final section treats larval or adult populations and includes new information on the role of hydrodynamics to aid in the understanding of larval dispersal and settlement. Reproduction and Development of Marine Invertebrates is the first book of its kind to be published since 1978. Extensivelyillustrated with more than a hundred line drawings and photos--including sixty high-resolution electron micrographs--it will be of interest to professionals and students in evolutionary biology, invertebrate zoology, developmental biology, and functional morphology.
