Biology of Sharks and Their Relatives (Marine Biology) by Jeffrey C. Carrier, John A. Musick, Michael R. Heithaus

By Jeffrey C. Carrier, John A. Musick, Michael R. Heithaus

Winner of selection Magazine’s remarkable educational name award, January 2005!

Sharks and their relations are the topics of super curiosity. The public’s fascination is prompted by means of their roles in video clips and renowned literature, whereas the media races to hide tales of predators endangering helpless people. The alarming risk to shark populations is usually garnering major exposure and resulting in a global bring up in conservation tasks. ultimately, technological advances are impacting each quarter of shark examine and revealing excellent secrets and techniques approximately those mysterious animals. those significant components point out the necessity for a well timed synthesis of the biology of sharks and their family.

Biology of Sharks and Their Relatives brings jointly the newest details at the phylogeny, body structure, habit, and ecology of sharks and their family, the skates, rays, and chimaeras. Written through a “Who’s Who” lineup in North American elasmobranch examine, this single-source assessment of elasmobranch fishes offers cohesive and built-in assurance of key themes and discusses technological advances utilized in sleek shark learn. The textual content establishes relationships one of the sharks and their kin that dominate the Chondrichthyes, describes their capabilities and physiological techniques, and examines concerns appropriate to dealing with depleted and threatened fisheries. all the 19 chapters features a entire overview of the topic with wide updated citations.

This authoritative e-book presents a synopsis of the present knowing of elasmobranch fishes whereas deciding on gaps in our wisdom to stimulate extra examine. Its extensive insurance and inclusive nature make this a big source for marine and conservation biologists, fishery scientists, organic oceanographers, zoologists, ecologists, environmental planners, and scholars.

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Extra resources for Biology of Sharks and Their Relatives (Marine Biology)

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2004 by CRC Press LLC The Origin and Relationships of Early Chondrichthyes 19 As for the early hybodont record, microremains are purported to exist as far back as the Devonian (Lelievre and Derycke, 1998) and the Mesozoic Hybodus originally appeared to provide a possible link to the neoselachians through Heterodontus (reviewed in Maisey, 1982a, 1989). In an attempt to link neoselachians to Paleozoic and Mesozoic hybodonts, Young (1982) proposed Hybodus, Tristychius, and Onychoselache as the sister group to living elasmobranchs.

Oklahoma Geol. Notes 36:175–192. © 2004 by CRC Press LLC 2 Historical Zoogeography of the Selachii John A. Musick, Melanie M. V. 1 Introduction .................................................................................................................................... 1 Zoogeographic Patterns..................................................................................................... 2 Zoogeographic Mechanisms .............................................................................................

5 Cladistical Evaluation of Paleozoic Chondrichthyan Relationships and Comments on the Higher Systematic Groupings of Chondrichthyans Cladistic analyses were performed with Hennig86 (Farris, 1988) and Winclada (Nixon, 1999). 1) consists of 99 characters (50 of which are cranial). Character states are treated non-additively (unordered) and a zero-based hypothetical taxon serves as the outgroup. 6. These are (1) the Paleozoic elasmobranchians (the paleoselachians plus a smaller group with closer ties to the Euselachii), (2) the non-holostylic Euchondrocephali, and (3) the Holocephalimorpha.

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