Download or read book The Mediterranean aeolid nudibranch Cratena peregrina Feeding rates and behaviour written by Kira Izabela Kremer and published by GRIN Verlag. This book was released on 2020-09-14 with total page 51 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bachelor Thesis from the year 2019 in the subject Biology - Behaviour, grade: 1,0, University of Rostock (Biowissenschaften), language: English, abstract: In order to investigate the feeding behaviour and the feeding rate of Cratena peregrina, two different experiments were conducted. Behaviour experiments were performed in a tank and feeding rate experiments in a beaker. A total of 31 individuals was tested, 22 hours each, with full surveillance in during the trials. There are three major research hypotheses investigated in this study: 1) Cratena peregrina is able to locate Eudendrium spec. colonies in its surrounding. 2) Cratena peregrina feeds systematically on the hydroid colonies. 3) The feeding rate correlates with the length of the molluscs. This study was also conducted regarding possible contribution to the biomedical field, concerning the handling and observation of nudibranch specie. Moreover, it hopes to reveal useful information for further studies about the biology and ecology of nudibranchs. For these purposes, two tests were developed: one for evaluating the feeding behaviour of Cratena peregrina and one for determining the feeding rate of the individuals.
Download or read book Nudibranchs of the World written by Helmut Debelius and published by . This book was released on 2007 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Opisthobranchs of the Adriatic Sea written by Jakov Prkić and published by . This book was released on 2018 with total page 463 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the Malacological Society of London written by Malacological Society of London and published by . This book was released on 1903 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Pacific Coast Nudibranchs written by David W. Behrens and published by . This book was released on 1980 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sea Snails written by Joseph Heller and published by Springer. This book was released on 2015-06-16 with total page 355 pages. Available in PDF, EPUB and Kindle. Book excerpt: This richly illustrated book presents the diversity and natural history of sea snail groups. By integrating aspects of morphology, ecology, evolution and behaviour, it describes how each group copes with problems of defence, locomotion, nutrition, reproduction and embryonic development. First come general characteristics of the Mollusca, to which snails belong; and next, characteristics by which snails (Gastropoda) differ from other molluscs. Then a broad, panoramic view of all major sea snail groups, from the primitive to the more advanced, is presented, including both the more abundant and some remote ones of special interest. In detailing primitive sea snails, first limpets (Patellogastropoda) are described, followed by brush snails (Vetigastropoda: top-shells, turbans and allies) and nerites (Neritimorpha), a small group with remarkably high variation in shell colour and in habitats. In looking at advanced-snails (Caenogastropoda), it details the herbivorous grazers and filter-feeders and the many voracious predators, some which use venomous darts. The book also covers sea slugs (Opisthobranchia), which have shifted from mechanical to chemical defence; some are herbivores, some use their food to harness solar energy, others are predators that gain stinging cells and poisonous compounds from their food. In addition, readers will learn about aspects of sea snails in human culture, including use as sacred artefacts and objects of magic and money, as a source of the royal and sacred dyes of purple and blue and as holy ceremonial trumpets. The text, in which scientific terms are accompanied by parallel common ones, is accompanied by over 200 illustrations (mostly in colour). This comprehensive, insightful portrait of sea snails will appeal to marine biologists, zoology lecturers and students, biology teachers, field-school instructors, nature reserve wardens, amateur naturalists, as well as to lecturers and learners of human culture.
Download or read book Ecology and Conservation of Tropical Marine Faunal Communities written by K. Venkataraman and published by Springer Science & Business Media. This book was released on 2013-09-12 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides insights into various aspects of marine faunal communities in India, which are extremely diverse due to the geomorphologic and climatic variations along the Indian coasts. Consisting of 30 chapters by experts in their respective fields, it is divided into two parts: · Part I: Tropical Marine Faunal Communities · Part II: Ecology and Conservation Part I highlights the diversity and distribution of Foraminifera; sponges associated with seagrass; Polychaeta; Opisthobranchia; oysters; copepods; horseshoe and brachyuran crabs; echinoderms; ascidians; fishes; fish parasites; and sea mammals. Topics of Part II include the status and environmental parameters of benthos; the status of coral reefs; the invasion of snowflake coral; the recovery of bleached corals; the socioeconomics and management of dugong; marine biodiversity conservation and management in India; the assessment of the marine fauna of the Indian Wildlife Protection Act; and marine biodiversity protected areas in India. This book will serve as a valuable reference work for marine scientists, as well as for environmental managers and policy makers.
Download or read book Nudibranch Behavior written by David W. Behrens and published by . This book was released on 2005 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nudibranchs are among the most beautiful creatures on the reef, with colors and shapes that dazzle and delight. Unlike fish that may disappear before our eyes in a flash, the showy nudibranchs glides slowly along the substrate, allowing us the time to savor this extraordinary sight. With their shell-less unprotected, bodies how do they survive in seas filled with hungry mouths? How do these sightless creatures navigate the reefs to find food and mates? What and how do they eat? How do they reproduce? What special relationships have they developed with other reef inhabitants? These and many more questions are answered in this informative and lavishly illustrated book. You will never look at a nudibranch the same way again.
Download or read book A Literature Review on the Poor Knights Islands Marine Reserve written by Carina Sim-Smith and published by . This book was released on 2009 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mediterranean and Atlantic Invertebrate Guide written by Peter Wirtz and published by . This book was released on 2003 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Citizens of the Sea written by Nancy Knowlton and published by National Geographic Books. This book was released on 2010 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this refreshing, reader-friendly, and colorfully illustrated book about the ocean, renowned marine scientist Knowlton presents an overview of the hundreds of species that have been discovered in the past decade.
Download or read book A Field Guide to the Nudibranchs of the British Isles written by Bernard E. Picton and published by Immel Publishing. This book was released on 1994 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Entomology written by Cedric Gillott and published by Springer Science & Business Media. This book was released on 2005-12-27 with total page 835 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gillott’s thorough yet clear writing style continues to keep Entomology near the top of the class as a text for senior undergraduates, and for graduate students and professionals seeking an introduction to specific entomological topics. The author’s long-held belief that an introductory entomology course should present a balanced treatment of the subject is reflected in the continued arrangement of the book in four sections: Evolution and Diversity, Anatomy and Physiology, Reproduction and Development, and Ecology. For the third edition, all chapters have been updated. This includes not only the addition of new information and concepts but also the reduction or exclusion of material no longer considered "mainstream", so as to keep the book at a reasonable size. Based on exciting discoveries made during the previous decade, the topics of insect evolutionary relationships, semiochemicals, gas exchange, immune responses (including those of parasites and parasitoids), flight, and the management of pests have received particular attention in the preparation of the third edition. Overall, more than 30 new or significantly revised figures have been incorporated.
Download or read book American Journal of Conchology written by and published by . This book was released on 1865 with total page 526 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Jellyfish Blooms written by Kylie A. Pitt and published by Springer Science & Business Media. This book was released on 2013-11-04 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: Jellyfish are one of the most conspicuous animals in our oceans and are renowned for their propensity to form spectacular blooms. The unique features of the biology and ecology of jellyfish that enable them to bloom also make them successful invasive species and, in a few places around the world, jellyfish have become problematic. As man increasingly populates the world’s coastlines, interactions between humans and jellyfish are rising, often to the detriment of coastal-based industries such as tourism, fishing and power generation. However we must not lose sight of the fact that jellyfish have been forming blooms in the oceans for at least 500 million years, and are an essential component of normal, healthy ocean ecosystems. Here many of the world’s leading jellyfish experts explore the science behind jellyfish blooms. We examine the unique features of jellyfish biology and ecology that cause populations to ‘bloom and bust’, and, using case studies, we show why jellyfish are important to coastal and ocean ecosystem function. We outline strategies coastal managers can use to mitigate the effects of blooms on coastal industries thereby enabling humans to coexist with these fascinating creatures. Finally we highlight how jellyfish benefit society; providing us with food and one of the most biomedically-important compounds discovered in the 20th century.
Download or read book A Functional Biology of Scyphozoa written by M.N. Arai and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: Scyphozoa have attracted the attention of many types of people. Naturalists watch their graceful locomotion. Fishermen may dread the swarms which can prevent fishing or eat larval fish. Bathers retreat from the water if they are stung. People from some Asiatic countries eat the medusae. Comparative physiologists examine them as possibly simple models for the functioning of various systems. This book integrates data from those and other investigations into a functional biology of scyphozoa. It will emphasize the wide range of adaptive responses possible in these morphologically relatively simple animals. The book will concentrate on the research of the last 35 years, partly because there has been a rapid expansion of knowledge during that period, and partly because much of the previous work was summarized by books published between 1961 and 1970. Bibliographies of papers on scyphozoa were included in Mayer (1910) and Kramp (1961). Taxonomic diagnoses are also included in those monographs, as well as in a monograph on the scyphomedusae of the USSR published by Naumov (Naumov, 1961). Most impor tantly, a genenttion of scyphozoan workers has used as its 'bible' the monograph by F.S.Russell (1970) The Medusae of the British Isles. In spite of its restrictive title, his book reviews most of the information on the biology of scyphozoa up to that date.
Download or read book Oceanography and Marine Biology written by R. N. Gibson and published by CRC Press. This book was released on 2006-06-13 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt: With increasing interest in the field and its relevance in global environmental issues, Oceanography and Marine Biology: An Annual Review provides authoritative reviews that summarize results of recent research in basic areas of marine research, exploring topics of special and topical importance while adding to new areas as they arise. This volume, part of a series that regards the all marine sciences as a complete unit, features contributions from experts involved in biological, chemical, geological, and physical aspects of marine science. Including a full color insert and an extensive reference list, the text is an essential reference for researchers and students in all fields of marine science.
