The Darwin Elasmobranch Biodiversity Conservation and Management project in Sabah held a three-day international seminar that included a one-day workshop in order to highlight freshwater and coastal elasmobranch conservation issues in the region and worldwide, to disseminate the result of the project to other Malaysian states and countries, and to raise awareness of the importance of considering aspects of elasmobranch biodiversity in the context of nature conservation, commercial fisheries management, and for subsistence fishing communities. These proceedings contain numerous peer-reviewed papers originally presented at the seminar, which cover a wide range of topics, with particular reference to species from freshwater and estuarine habitats. The workshop served to develop recommendations concerning the future prospects of elasmobranch fisheries, biodiversity, conservation and management. This paper records those conclusions, which highlight the importance of elasmobranchs as top marine predators and keystone species, noting that permanent damage to shark and ray populations are likely to have serious and unexpected negative consequences for commercial and subsistence yields of other important fish stocks.

Since the award-winning first volume, The Biology of Sharks and Their Relatives, published in 2004, the field has witnessed tremendous developments in research, rapid advances in technology, and the emergence of new investigators beginning to explore issues of biodiversity, distribution, physiology, and ecology in ways that eluded more traditional

Elasmobranch - describes a group of fish without a hard bony skeleton, including sharks, skates, and rays.

Sharks in Mexico: Research and Conservation, Volume 83 in the Advances in Marine Biology series, provides in-depth and up-to-date reviews on all aspects of marine biology that will appeal to postgraduates and researchers in marine biology, fisheries science, ecology, zoology and biological oceanography. New chapters cover The Sharks of Pacific Mexico and their Conservation - Why Should we Care?, Biodiversity and Conservation of Sharks in Pacific Mexico, Shark Ecology, The Role of the Apex Predator and Current Conservation Status, Review of Current Genetic Analyses for Sharks of Pacific Mexico and Conservation Implications, and much more. Reviews articles on the latest advances in marine biology Authored by leading figures in their respective fields of study Presents material that is widely used by managers, students and academic professionals in the marine sciences

Northeast Pacific Shark Biology, Research and Conservation, Part A, Volume 77 highlights the biological attributes of, and the conservation efforts targeted at, populations of vulnerable sharks in the Northeastern Pacific Ocean bordering the west coast of the United States, one of the most economically and ecologically important oceanic regions in the world. Updates in this new volume include chapters on Biodiversity, Conservation and Life History of Northeastern Pacific Chondrichthyans, a Review of current genetic analyses of Northeast Pacific sharks and conservation implications, and a section on the Trophodynamics and ecological impacts of eastern North Pacific sharks. - Brings together subject experts on all aspects of shark biology, ecology, fishery management and conservation - Summarizes current knowledge - Focuses scientific attention on key issues embedded in the concept of shark conservation, both from a species and an ecosystem perspective

This report describes the population biology and fishery management of elasmobranchs at regional, national and sub-regional levels - in Atlantic Europe, the United States, the Caribbean, Guatemala, South Africa, Uruguay, the Falkland Islands, the Seychelles, two states in India, the Maldives, Malaysia, Australia, New Zealand, Japan, Fiji and Ecuador. Regional accounts are given of management of Galeorhinus galeus, deepwater sharks and elasmobranch considerations of a tuna commission. NGO elasmobranch activities are described and an analysis of the quality of the relevant data in the FAO Nominal Catches and Landings Data Base. The topics of the resource, fishery and associated species, current status of fisheries and harvesting processes are described together with the evolution of the catch, fleet, fishing effort, commerce, fishery markets and revenues from the fishery. Comments on the economics of the fishery and nature of the workforce are also given. In relation to fisheries administration, management objectives and national fisheries policies are described and the manner of the planning process. Where applicable, the objectives setting process, relevant stakeholders and the handling of management negotiations are noted. The nature of gear restrictions and their effectiveness together with vessel regulations and where they exist, on catch, closed seasons, effort limitations, etc., are described Where management planning occurs, the provision of resource management advice together with a description of the departments involved and management activities are described. Several papers review stock assessment activities plus descriptions and analyses of the biological advice review process with comments on the sustainability of the resource. National accounts describe the relevant law and enforcement processes. The report consists of two parts.

This important and exciting title represents the first authoritative volume focussed on pelagic (open ocean) sharks as a group. Virtually every pelagic shark expert in the world has contributed to this landmark publication which includes the latest data and knowledge on pelagic shark biology, fisheries, management, and conservation. Pelagic sharks face unprecedented levels of exploitation in all the world's oceans through both direct fisheries and by-catch, and effective management for these species is contingent upon solid science and data, which this book brings together for the first time. All those involved in shark biology will need to have a copy of this book.

Major world fisheries for elasmobranchs are described in regard to their importance, recent trends, problems for assessment and management, conservation and the outlook for their sustainability. The analysis considers trends and outlooks in FAO's statistical areas, individual accounts of fisheries by the major elasmobranch fishing nations and the high seas fisheries that have significant by catches of elasmobranchs. Information on species, gears, patterns of exploitation, research and management of elasmobranchs is summarized for each of these countries. The general problems in appraising and managing elasmobranch fisheries and the need for conservation are discussed and possible solutions for some of these problems are proposed.