Identification Guide to the Deep-Sea Cartilaginous Fishes of the Indian Ocean
Identification Guide to the deep-sea cartilaginous fishes of the Southeastern Atlantic Ocean
This guide was prepared under the “FAO Deep–sea Fisheries Programme” thanks to a generous funding from the Government
of Norway (Support to the implementation of the International Guidelines on the Management of Deep-Sea Fisheries in the High Seas project) for the purpose of assisting states, institutions, the fishing industry and RFMO/As in the implementation of
FAO International Guidelines for the Management of Deep-sea Fisheries in the High Seas. It was developed in close collaboration with the FishFinder Programme of the Marine and Inland Fisheries Branch, Fisheries Department, Food and Agriculture Organization of the United Nations (FAO).
The present guide covers the deep–sea Southeastern Atlantic Ocean and that portion of Southwestern Indian Ocean from
18°42’E to 30°00’E (FAO Fishing Area 47). It includes a selection of cartilaginous fish species of major, moderate and minor
importance to fisheries as well as those of doubtful or potential use to fisheries. It also covers those little known species that may be of research, educational, and ecological importance.
In this region, the deep–sea chondrichthyan fauna is currently represented by 50 shark, 20 batoid and 8 chimaera species. This guide includes full species accounts for 37 shark, 9 batoid and 4 chimaera species selected as being the more difficult to identify and/or commonly caught. Each species is described, depicted with a colour illustration and photo, and key distinguishing features of similar–looking species occurring in the same area are highlighted allowing for easy and accurate identification in the field. Keys to the shark and batoid orders and families, together with keys to chimaera and skate genera are also provided.
This guide is intended to help fishery workers collecting catch data in the field in the identification of the cartilaginous
fish species they might encounter. It is conceived to be updatable, offering the possibility to add new species accounts as new species are described.