The Action Plan for Australian Sharks 2020 is the first action plan for Australia's chondrichthyan fishes (sharks, rays, and chimaeras). This book presents the IUCN Red List status of all 329 species occurring in Australian waters including Subantarctic ad Antarctic waters. The majority of the fauna is secure, although roughly one in eight species is threatened with extinction. The Action Plan presents specific actions required to address knowledge gaps, and outlines conservation actions for each species. This book is a call to action to secure all of Australia's sharks, rays, and chimaeras.

As aquatic predators since the Cretaceous period, Elasmobranchs (sharks, skates, rays) and chimaeras, represent one of the oldest vertebrate groups, with very little morphological or physiological adaptations. Though they are remarkably ancient and praised as God-like creatures in some parts of the world, they are among the most feared in the public eye as a consequence of their negative portrayal throughout history. Unfortunately, as it is the case with many aquatic species, in recent years climate change and anthropogenic pressures such as food competition, pollution, and habitat degradation have significantly threatened their populations. On top of this, having low fecundity, late sexual maturation and slow growth rates as well as their opportunistic feeding behavior make them vulnerable to commercial fisheries even though, in most cases, they are not the target species. As a result, nowadays many species are endangered, some data-deficient or nearly extinct with the need for urgent knowledge for conservation actions. Producing science-based information on elasmobranchs and chimaeras is crucial for population sustainability, conservation and management actions. In this Research Topic, we invite author contributions on elasmobranchs and chimaeras biology and ecology (e.g., reproduction biology, feeding ecology, age and growth), distribution, migration and many other aspects to bring together this imperative knowledge to provide a base for conservation and management actions, locally or regionally.

Biology of Sharks and Their Relatives is an award-winning and groundbreaking exploration of the fundamental elements of the taxonomy, systematics, physiology, and ecology of sharks, skates, rays, and chimera. This edition presents current research as well as traditional models, to provide future researchers with solid historical foundations in shark research as well as presenting current trends from which to develop new frontiers in their own work. Traditional areas of study such as age and growth, reproduction, taxonomy and systematics, sensory biology, and ecology are updated with contemporary research that incorporates emerging techniques including molecular genetics, exploratory techniques in artificial insemination, and the rapidly expanding fields of satellite tracking, remote sensing, accelerometry, and imaging. With two new editors and 90 contributors from the US, UK, South Africa, Portugal, France, Canada, New Zealand, Australia, India, Palau, United Arab Emirates, Micronesia, Sweden, Argentina, Indonesia, Cameroon, and the Netherlands, this third edition is the most global and comprehensive yet. It adds six new chapters representing extensive studies of health, stress, disease and pathology, and social structure, and continues to explore elasmobranch ecological roles and interactions with their habitats. The book concludes with a comprehensive review of conservation policies, management, and strategies, as well as consideration of the potential effects of impending climate change. Presenting cohesive and integrated coverage of key topics and discussing technological advances used in modern shark research, this revised edition offers a well-rounded picture for students and researchers.

The most comprehensive reference guide to the world's sharks—now fully revised and updated Sharks of the World is the essential illustrated guide for anyone interested in these magnificent creatures. Now fully revised and updated, it covers 536 of the world's shark species and is packed with colour illustrations, colour photos and informative diagrams. This comprehensive, easy-to-use reference guide incorporates the latest taxonomic revisions of many shark families, featuring many species that were only described in recent years. It also includes a completely revised and expanded introduction and updated line drawings throughout. Covers 536 shark species from around the world Features updated species accounts, illustrations and maps Gives an illustrated overview of shark biology, ecology and conservation Includes fin identification guides Provides a colour distribution map for every species

The ocean is under increasing threat from the expansion of human activities. The combined impacts of these threats as well as the potential impacts of climate change and ocean acidification have placed thousands of species at risk of extinction, and have impaired the structure, function, productivity and resilience of marine ecosystems. Currently, some parts of the world's oceans are significantly impacted, yet are without any form of effective management. Only a small proportion of the oceans are within protected area systems. Globally, measures are being taken to increase protection and sustainable management, but application is uncoordinated and not always effective. In order to support effective policy action by countries and competent international and regional organizations, it is critical to build a sound understanding of the most ecologically and biologically important ocean areas that support healthy marine ecosystems so that the necessary steps to ensure the long-term function and resilience of these systems can be taken.