All known and relevant data and features to enable an identification of sharks of the genus Carcharhinus (BLAINVILLE 1816) are summarised and visualised in this book. The introduced species are difficult to separate for somebody who is not experienced in identifying sharks. An identification key is given to determine and to differentiate the species. For each species an extended list of characters is given including coloured figures to show the lateral and ventral view, a detailed view of nostril and teeth, and in some cases of juveniles and special characters. Further, data on body size and…mehr
All known and relevant data and features to enable an identification of sharks of the genus Carcharhinus (BLAINVILLE 1816) are summarised and visualised in this book. The introduced species are difficult to separate for somebody who is not experienced in identifying sharks. An identification key is given to determine and to differentiate the species. For each species an extended list of characters is given including coloured figures to show the lateral and ventral view, a detailed view of nostril and teeth, and in some cases of juveniles and special characters. Further, data on body size and appearance, colouration, tooth formula and shape, numbers of vertebrae, on other internal and external characters, the geographical distribution, preferred habitat and food spectrum are presented. In addition, biological and reproductional data are included, e. g. number of young per litter, size at birth, size at sexual maturity, as well as behaviour and migrational patterns. Most of the previous works about Carcharhinus listed and discussed a maximum of 30 species. In contrast, this field guide describes 33 species, six species with special notes of the authors. Further, a possible subdivision of the spinner shark, C. brevipinna, in an Atlantic and Pacific subspecies is briefly discussed. An almost unknown species, C. acarenatus, formerly considered a synonym of C. brachyurus, is introduced. A very rare species, C. leiodon, which was hitherto recorded only once by GARRICK (1985), is included and controversially discussed. Another species in dispute, Carcharhinus sp. A, mentioned by COMPAGNO et al. (2005) as new member of the genus, is comprised and discussed.
Dr. Matthias VOIGT studied marine biology at the University of Rostock (2000-2004) where he examined the impact of climate change on growth of Antarctic invertebrates. After receiving his PhD from the University of Karlsruhe, Department of Technical Biology, where he studied the biotechnological cultivation of Mediterranean sponges under artificial culture conditions, he moved 2010 to the University of Konstanz, where he works in the Department of Biology, Human & Environmental Toxicology Group. During many dives he made several experiences with sharks in the field, and was fascinated by these majestic creatures. Since 2001 he is member of the German Elasmobranch Society (D.E.G.), and he tries to impart his experience, knowledge and fascination of sharks to public for a better understanding and increasing protection of this group of animals. Dietmar WEBER has graduated a professional training as Technician for Biology i. e. Ecology (1988) and is employee at the Research Institute for Forest Ecology and Forestry of Rhineland-Palatinate in Trippstadt (since 1989). Since his early childhood he showed a strong interest in nature and animals as well, with the main focus in fish. His passion is detailed and lifelike portraying of animals which he has improved to perfection in the last forty years. At the moment his dedication is focused on sharks, skates and rays, and he is member of the German Elasmobranch Society since 1999. He delivered many coloured plates and figures for several article publications, books, homepages and calendars.
Inhaltsangabe
From the contents: Foreword 6 Preface 7 Acknowledgments 8 Introduction 9 Aims of this book 9 Evolution of sharks fossil records 9 Taxonomic classification of sharks 10 Short introduction to general biology and anatomy of sharks (genus Carcharhinus) 10 Morphology 10 Senses 12 Teeth 12 Buoyancy and breathing 12 Reproduction 12 Distribution and behaviour 12 Sexual dimorphism 13 Preparation of this book 13 Materials and Methods 13 Key to species 13 Systematic arrangement 13 Generic synonyms 14 Examination of specimens 14 Species characterisations 14 Coloured figures of species 15 Species synonyms 15 Diagnostic features 15 Dental formula and tooth morphology 16 Colouration 17 Size 17 Misidentifications 17 Geographical Distribution 17 Habitat preference 18 General biological issues 18 Reproductive Biology 18 Food spectrum 18 Red list status 18 Tables and Graphs 18 Detailed photographs of dentition 18 Measurements 19 Technical terms 23 Key to genera and species 31 Key to genera 31 Key to species of the genus Carcharhinus 32 Species characterisations 35 Carcharhinus acarenatus 35 Carcharhinus acronotus 37 Carcharhinus albimarginatus 39 Carcharhinus altimus 41 Carcharhinus amblyrhynchoides 43 Carcharhinus amblyrhynchos 45 Carcharhinus amboinensis 47 Carcharhinus borneensis 49 Carcharhinus brachyurus 51 Carcharhinus brevipinna 53 Carcharhinus cautus 56 Carcharhinus dussumieri 58 Carcharhinus falciformis 60 Carcharhinus fitzroyensis 62 Carcharhinus galapagensis 64 Carcharhinus hemiodon 66 Carcharhinus isodon 68 Carcharhinus leiodon 70 Carcharhinus leucas 72 Carcharhinus limbatus 75 Carcharhinus longimanus 77 Carcharhinus macloti 80 Carcharhinus melanopterus 82 Carcharhinus obscurus 84 Carcharhinus perezii 87 Carcharhinus plumbeus 89 Carcharhinus porosus 91 Carcharhinus sealei 93 Carcharhinus signatus 95 Carcharhinus sorrah 97 Carcharhinus tilstoni 99 Carcharhinus wheeleri 101 Species in question 103 Carcharhinus sp. A. 103 Tables 104 Graphs 113 Detailed photographs of dentition 121 Abbreviations 138 Bibliography 139 Index of Scientific and Vernacular Names 148
