Home > Authors and editors

Mohamed Nejmeddine Bradai

Institut National des Sciences et Technologies de la Mer Tunisia

Mohamed Nejmeddine Bradai is a Professor of Higher Education at the National Institute of Marine Science and Technologies and head of the Marine Biodiversity Laboratory in Tunisia. He obtained an engineering degree in marine living resource exploitation as well as a master’s degree, Ph.D., and a state doctorate degree (thesis on eco-biology and distribution of fish in the Mediterranean Sea and a thesis on marine turtles). He is a member of the Shark Specialist Group of the International Union for Conservation of Nature (IUCN) and former coordinator of the subcommittee 'Marine Environment and Ecosystems” of the Scientific Advisory Committee (SAC) of the General Fisheries Commission for the Mediterranean of the Food and Agriculture Organization (GFCM-FAO). He contributes to the Mediterranean Large Elasmobranchs Monitoring (MEDLEM) database. As a consultant on elasmobranchs of the United Nations Environment Programme’s Regional Activity Centre for Specially Protected Areas (SPA/RAC), Dr. Bradai elaborated the Action Plan for the Conservation of Cartilaginous Fishes in the Mediterranean Sea (2020) and the National Action Plan for the Conservation of Cartilaginous Fishes (chondrichthyans) in the Mediterranean Coasts of Egypt (2021). Dr. Bradai is an author of many international articles and communications dealing with sea turtles. He is also a National GFCM focal point in the Medbycatch project, National focal point of the National Stranding Network, Former coordinator of the monitoring of the Kuriat nesting site, Former coordinator of the sea turtle rescue center (Monastir – Tunisia), Member of the IUCN Turtle Specialist Group, founding member of NASTNet (North Africa Sea Turtle Net) and former coordinator of the Sub Committee “Marine Environment and Ecosystems” of the GFCM-FAO (2006-2010).

1books edited

2chapters authored

Latest work with IntechOpen by Mohamed Nejmeddine Bradai

This book presents information on the biology, ecology, taxonomy, and fisheries of sharks. The analysis of data shows that cartilaginous species, including sharks, rays, and chimeras, are by far the most endangered group of marine fish. Sharks are particularly vulnerable to exploitation because of their K-selected life-history strategy. Overfishing, wide use of non-selective fishing practices and habitat degradation are leading to dramatic declines of these species in most marine areas. In general, sharks are not targeted but are caught incidentally. In many fisheries, they are, however, often landed and marketed. Therefore, this book provides recommendations for protecting and managing sharks’ stocks. A better understanding of the composition of incidental and targeted catches of sharks by commercial fisheries and biological and ecological parameters are fundamentally important for the conservation of these populations.

Sharks

Sharks

Edited by Mohamed Nejmeddine Bradai

Chapters authored

Sharks’ Status in the Mediterranean Sea Urgent Awareness is Needed

By Mohamed Nejmeddine Bradai, Samira Enajjar and Bechir Saidi

Cartilaginous fishes are a very ancient group; Sharks have lived on Earth for about 500 million years, since long before the dinosaurs. They have been able to survive and overcome five mass extinctions since their appearance. They play in fact a key role in maintaining the balance of marine ecosystems. More than 97% of the shark population has disappeared in the last two centuries. Currently, a high percentage is threatened, many are data-deficient. Many menaces face sharks, but fishing pressure seems to be most critical. This chapter focuses on the current status of cartilaginous fishes and progress on conservation measures and actions taken mainly through regional plans.

Part of the book: Sharks

Elasmobranchs in Tunisia: Status, Ecology, and Biology

By Samira Enajjar, Bechir Saidi and Mohamed Nejmeddine Bradai

The authors have compiled published information on taxonomy, distribution, status, statistics, fisheries, bycatch, biologic, and ecologic parameters mainly on food and feeding habits and reproductive biology of elasmobranchs along the Tunisian coasts. This bibliographic analysis shows that cartilaginous species, including sharks and rays are by far the most endangered group of marine fish, with 63 species, about 53% of all are critically endangered, endangered, or vulnerable. Overfishing, fishing practices, and habitat degradation are leading to dramatic declines of these species. Biologic parameters concern a few species primarily in the Gulf of Gabes. Therefore, recommendations to fill gaps in order to protect and manage elasmobranchs stocks are proposed in this chapter.

Part of the book: Sharks

Related collaborators

Asiedu Berchie

University of Energy and Natural Resources , Ghana

Bechir Saidi

University of Kairouan , Tunisia

Samira Enajjar

Institut National des Sciences et Technologies de la Mer , Tunisia

Samuel K. K. Amponsah

University of Energy and Natural Resources , Ghana

Sondes Marouani

Rachel Ackah

University of Energy and Natural Resources , Ghana

William Dzisenu Amekor

University of Energy and Natural Resources , Ghana

Andrews Apraku

University of Energy and Natural Resources , Ghana

Sami Karaa

National Institute of Marine Science and Technology, Tunisia

Othman Jarboui

National Institute of Marine Science and Technology, Tunisia