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Book (stand-alone)On board guide for the identification of pelagic sharks and rays. Western Indian Ocean 2015
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No results found.The present field guide is designed to assist in the identification of pelagic sharks and rays of the Western Indian Ocean that are major, moderate, or minor importance to fisheries. It encompasses the offshore, high seas portion of FAO Fishing Area 51. The Western Indian Ocean pelagic elasmobranch fauna is currently represented by thirty four shark species and seven ray species. This field guide includes full species accounts for all known species, although it is acknowledged that some vagrant species not included here may on occasion be caught. Each species is described, depicted with a colour illustration and photo, and key distinguishing features of similar-looking species occurring in the area are highlighted allowing for easy and accurate identification in the field. This field guide is intended to help fishery workers collecting catch data in the field in the identification of the sharks and rays they are likely to encounter. It is conceived to be updatable, offering the possibi lity to add additional species accounts as new information becomes available. -
Book (series)Identification guide to the mesopelagic fishes of the western Indian Ocean 2023
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No results found.This comprehensive guide encompasses a total of 473 species of mesopelagic fishes (i.e. those fishes residing primarily between 200 and 1 000 m depth during daytime) that are known to occur in the western Indian Ocean. It aids in their accurate identification, offering dichotomous keys to all taxa. Species are treated in detail, with accounts including the scientific name, FAO common name in English (where available), other useful characters, size, a distribution map, and one or more illustrations. Captions and arrows enhance user-friendliness for to both specialists and non-specialists in the field of ichthyology. In the broader context of marine ecology, mesopelagic fishes hold a pivotal role as integral components of the marine food web, serving both as predators and prey for various species. This guide not only enriches our understanding of these fishes but also contributes to our knowledge of the western Indian Ocean's diverse ecosystem. Beyond species identification, it sheds light on the interconnectedness of marine life and underscores the importance of conservation efforts in safeguarding this delicate balance. This guide serves as an invaluable resource for in-depth exploration and research into these remarkable fishes, offering a comprehensive tool for studying their diverse characteristics, behaviours, and ecological significance, essential elements for sustainable management and conservation practices. -
Book (series)Field Identification Guide to the Sharks and Rays of the Red Sea and Gulf of Aden 2004
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No results found.This volume presents a fully illustrated field guide for the identification of the sharks and rays most relevant to the fisheries of the Red Sea and Gulf of Aden. A total of 49 sharks and 45 batoids reliably reported for the region are listed and those common in the fisheries or likely to be found through fishing operations are fully treated (44 sharks and 33 batoids). Included here are the first confirmed reports for the region of Hemigaleus microstoma, Carcharhinus dussumieri, Aetomylaeus vesp ertilio, Himantura fai, Mobula japanica and an undescribed Dasyatis sp. The guide includes a fully illustrated keys to those orders and families that occur in the region. Each species account includes: at least one annotated illustration of the species highlighting its relevant identification characters; basic information on nomenclature, synonyms and possible misidentifications; FAO, common and local names; basic information on size, habitat and biology, importance to fisheries, and distributio n. Colour plates for a large number of the species are included.
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