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Rocky shores correspond to a very particular habitat in Brazil, which is concentrated in the Southeastern and Southern coasts. There are different types of substrata and seascapes that cause a high environmental heterogeneity responsible to host a high species biodiversity and a range of ecosystem services. Primary and secondary production, as well as structuring organisms and processes, differs from temperate areas.

The Brazilian coral reefs form structures significantly different from the well-known reef models, as follows: they have a growth form of mushroom-shaped coral pinnacles called'chapeirões'; they are built by a low diversity coral fauna rich in endemic species, with most of them relic forms dating back to the Miocene; and the nearshore bank reefs are surrounded by siliciclastic sediments. The reefs are distributed into four major sectors along the Brazilian coast: the northern, the northeastern, and the eastern regions, and the oceanic islands, but certain isolated coral species can be found in warmer waters in the embayment of the southern region. There are different types of bank reefs, fringing reefs, isolated'chapeirões'and an atoll present along the Brazilian coast. Corals, milleporids, and coralline algae build the rigid frame of the reefs. The areas in which the major coral reefs occur correspond to regions in which nearby urban centers are experiencing accelerated growth, and tourism development is rapidly increasing. The major human effects on the reef ecosystem are mostly associated with the increased sedimentation due to the removal of the Atlantic rainforest and the disposal of industrial and urban effluents. Fishing resources are seriously declining due to pollution and overfishing, and this reduction impacts artisanal fishers, who are impoverished and face food security risks. The effects of warming oceanic waters that have been affecting several reef areas with high-intensity coral bleaching did not show until the 2010 event, episodes of coral mass mortality in Brazilian reefs. However, since 2016, bleaching has increased, as has the mortality of milleporids. There are opportunities to develop purposeful biotechnologies that can support coral reef restoration and conservation. Reciprocally, preserved coral reef ecosystems containing peculiar genetic resources allow biotechnological opportunities to provide products and processes for economically and ecologically prosperous societies.

This book provides a compilation of basic information on the topic of the Patagonian Shelfbreak front, but integrally reanalyzes this under modern paradigms. The book provides a synthesis of the ecosystem characteristics, encompassing physical and chemical oceanography, plankton, nekton and benthos communities, fisheries and conservation issues. It provides hypothesis to guide future research, and recommendations for policymakers and stakeholders. Fronts play key roles in marine ecosystems, and shelfbreak fronts are ubiquitous elsewhere in the world ocean, broadening the interest of our proposal. The Patagonian shelfbreak front is a hot spot of marine life, with several associated fisheries and intensive use by marine birds and mammals. This book will contribute to fill the information gap of the Southwestern Atlantic, a region where there is a growing interest in terms of conservation and management actions. Its primary audience are researchers and postgraduate students, being also relevant for conservation scientists and resource managers.

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.