Gökçeada is Turkey’s largest island, and acts as a natural center for the transition points of migrating fish, located at the entrance of Saros Bay, and at a point where the Marmara Sea and the North Aegean waters meet. The banks surrounding Gökçeada, create rich fishing beds. It also hosts Turkey’s only marine park established in 1999. A lack of stock assessments, as well as co-management, has impeded fisheries management capabilities in the region. This document presents a first baseline report on the fisheries of Gökçeada to facilitate its transition to incorporating the principles of an ecosystem approach to fisheries management. This report was prepared as part of the project «Transition to Ecosystem Approach to Fisheries Management and Designing a Management Plan in Gökçeada, Turkey», carried out in cooperation with the Ministry of Agriculture and Forestry and managed by Ege University with the participation of many other stakeholders and financed by the FAO EastMed Project. The first part of the report presents information on the fisheries, and the second section, presents threats to the sustainability of fishing. A review of all existing relevant data was completed in addition to fisher interviews performed in 2020 to properly understand the current state of the fisheries and threats affecting sustainability. The baseline report is the first step towards the preparation of a management plan for fisheries in Gökçeada. The success of this initiative requires the joint willingness and determination of all stakeholders, especially from the official institutions and the fishery cooperative.

FAO has promoted the ecosystem approach to fisheries (EAF) as an appropriate framework for the sustainable development and management of fisheries worldwide. With a view to contribute to the identification of lessons and good practices for EAF implementation, this publication documents nine case studies that attempted to put into practice some of the key principles and tools of the approach in the Mediterranean Sea. The case studies were selected to cover a broad range of contexts including smallscale and industrial fisheries operating at local, national and sub-regional scales. It was not within the scope of the publication to evaluate the level of implementation of the ecosystem approach. A specific tool for monitoring implementation is proposed and exemplified. Case studies were analysed with a view to draw preliminary lessons regarding the enabling factors that facilitated the progress made as well as the challenges faced in the transition towards EAF-based management systems. Attention is drawn to key enabling conditions such as favourable policies, legislation and regulatory frameworks, the existence of regional mechanisms for cooperation, favourable market dynamics and social processes, and the relatively low complexity of the fishery systems analysed. A set of factors emerged that contributed to progress during implementation, such as the clear definition of fishing rights, the enhancement of mechanisms for compliance, scientific monitoring and adaptation of management measures, as well as the explicit consideration of biological and socioeconomic aspects in management actions. Further progress in the transition towards sustainable management systems is hampered by external and internal factors. External factors are related, for instance, to environmental changes, the poor regulation and control of competing sectors, consumer behaviour and the governance environment. Issues such as stakeholder representation, knowledge gaps and the availability of sustainable sources of funding are among common internal factors. The authors also discuss how slow progress in the implementation of management plans can generate discredit with the institutions and add additional challenges for any future initiatives to engage stakeholders in participatory management. The case-based results and lessons of how the ecosystem approach to fisheries was considered, developed and implemented in the fisheries discussed in this publication not only contribute to the documentation of current practices in the Mediterranean but may also guide future attempts to further develop the field.

This publication presents the outcomes and conclusions of the Forum on Fisheries Science in the Mediterranean and the Black Sea (Fish Forum 2024), including abstracts of keynote addresses, contributions and posters. Organized by the General Fisheries Commission for the Mediterranean, this event gathered scientists, fishers, stakeholders, researchers, engineers, academics, practitioners, managers and decision-makers from around the world to share knowledge on the latest developments and trends in fisheries science and discuss existing and emerging challenges as well as research priorities. The outcomes and abstracts are organized according to the three themes of Fish Forum 2024: better science for better advice; healthy seas and sustainable fisheries; and economic and technological innovation for resilient fisheries. The aim of this compilation is to provide insights to support decision-making processes and better advice in the region that will help shape the future of Mediterranean and Black Sea fisheries.

The purpose of this study is to provide a snapshot of recreational fisheries legal frameworks within the Mediterranean with a view to promoting homogeneous and comprehensive recreational fisheries management in the Mediterranean. The study reviews the existing laws and regulations concerning recreational fisheries adopted by Mediterranean countries. It provides first an overview of relevant international initiatives regarding the management of recreational fisheries and a summary of marine recreational fisheries within the Mediterranean basin. The core of the study focuses on a comparative analysis of the main management measures adopted by States, including: (i) access regimes to fisheries resources: (ii) conservation measures: (iii) special recreational fisheries regulations: and (iv) monitoring, control and surveillance of recreational fisheries.

Techniques and theory for processing otoliths from tropical marine fish have developed only recently due to an historic misconception that these organisms could not be aged. Otoliths are the most commonly used structures from which daily, seasonal or annual records of a fish’s environmental history are inferred, and are also used as indicators of migration patterns, home range, spatial distribution, stock structure and life history events. A large proportion of projects undertaken on tropical marine organisms involve removal and processing of calcified structures such as otoliths, statoliths or vertebrae to retrieve biological, biochemical or genetic information. Current techniques and principles have evolved rapidly and are under constant modification and these differ among laboratories, and more particularly among species and within life history stages. Tropical fish otoliths: Information for assessment, management and ecology is a comprehensive description of the current status of knowledge about otoliths in the tropics. This book has contributions from leading experts in the field, encompassing a tropical perspective on daily and annual ageing in fish and invertebrates, microchemistry, interpreting otolith microstructure and using it to back-calculate life history events, and includes a treatise on the significance of validating periodicity in otoliths.

Recent decades have seen significant changes in the biota of the Mediterranean and the Black Sea due to the introduction of non-indigenous species. Reliable scientific data on the dynamics of their distribution and abundance are essential to understand their ecological and economic effects. This review – in addition to providing images and descriptions of relevant species to aid in identification – presents a unique historical and regional perspective on these species’ impacts, based on many years’ worth of research. The Black Sea’s primary invaders come from the Mediterranean. Species like the comb jelly Mnemiopsis leidyi have caused major declines in biodiversity in the region by crippling key segments of the food chain. Similar results have been noted in the Marmara Sea, a crucial water exchange point located between the Aegean Sea and the Black Sea. Infiltration into the Mediterranean comes from both the east and west – with Lessepsian species passing through the Suez Canal and fish and invertebrate species originating from the Atlantic expanding their ranges. As of the publication of this review, over 900 non-indigenous species have been reported in the Mediterranean and almost 300 in the Black Sea, with these numbers expected to rise in the future. Numerous Lessepsian fishes are commercially relevant and have been absorbed into local markets, particularly in the eastern Mediterranean region. While these species are targeted through various fishing techniques, many others are simply discarded due to a lack of value and there are even some, such as lionfishes, pufferfishes and several species of jellyfishes, that present immediate dangers to human health. Stewardship of native species, regional cooperation on the enforcement of legal measures, increased public awareness and the creation of marine protected areas are thus essential to minimize and reduce the impacts of non-indigenous species both in the Mediterranean and the Black Sea.