Managing Rapana in the Black Sea: Stakeholder workshops on both sides

2014-01-01
Janssen, Ron
Knudsen, Stale
Todorova, Valentina
Hoşgör, Hatice Ayşe
Rapana venosa is a non-indigenous invasive predator on bivalves in the Black Sea. A Rapana fishery has developed in the Black Sea since the 1980s, primarily in Turkey and Bulgaria. The Rapana fishery provides a complex management problem with three groups of objectives: 1. Good economic status; 2. Good environmental status and 3. Cost of implementation. To address the various conflicting objectives of this management problem an ecosystem approach was taken to analyze the problem. Stakeholder workshops were set up in Varna (Bulgaria) and Samsun (Turkey) to discuss and evaluate management alternatives based on environmental (MSFD), economic and implementation objectives. Workshops were attended by fishers, factory owners, nature conservation NGOs, biologists and government representatives. In these workshops multi-criteria analysis was used to communicate information on trade-offs between objectives to generate feedback from the stakeholders. This proved useful as a means to retrieve information from the stakeholders and to identify areas of consensus and conflict. Although the process differed substantially between the Bulgarian and Turkish case studies both workshops showed limited conflict between environmental status and socio-economic status. Analysis showed that the real-trade-off was between these two objectives and the cost of implementation both in terms of monetary expense as in terms of resistance from stakeholders.
OCEAN & COASTAL MANAGEMENT

Suggestions

Spatial variation of larval ascaridoid nematode (Nematoda: Chromadorea: Ascaridoidea) infections in the Black Sea anchovy (Engraulis encrasicolus)
Akkuş, Gizem; Gücü, Ali Cemal (2021-01-01)
This study evaluates the Black Sea anchovy population infected by parasitic Ascaridoid Nematode larva in the Southern Black Sea. It assesses the larva's effect on fish body condition, energy stored in the body, and anchovy growth. For this, anchovies sampled on July 10-31, 2018, from 30 different stations were examined, and 11.8% of the 825 anchovies were found infected. The observed infection rate was higher on the western side of the study area, suggesting that this rate may be used as a biomarker for the...
Behavioral changes observed in Black Sea anchovy and its possible causes
Akkuş, Gizem; Gücü, Ali Cemal (2018-12-10)
The Black Sea anchovy (Engraulis encrasicolus ponticus) is a migratory species spawning and overwintering at two opposite ends of the Black Sea. It has been reported that the species may display significant alteration in their migration routes and in their spawning grounds. That, in turn, affects the stock and the fishery on this species noticeably. This study focuses on these alterations by comparing the age, length and egg-size distributions of the anchovies sampled within the Turkish Exclusive Economic Z...
Recent status and fate of the north-eastern Mediterranean monk seal populations.
KURT, MERVE; Ok, Meltem; Gücü, Ali Cemal (2019-12-09)
The endangered Mediterranean monk seal (Monachus monachus) is represented by approximately 350-450 individuals in Eastern Mediterranean waters in the form of small, fragmented and isolated groups. The North-eastern Mediterranean coast of Turkey being the host to one of the last continuously breeding populations, has vital importance for the survival of the species. Small populations inhabiting this region have been studied extensively for the last 25 years. The recent surveys showed that fragmented populati...
MODELING THE IMPACT OF CLIMATE VARIABILITY ON ANCHOVY OVERWINTERING MIGRATION IN THE BLACK SEA
Güraslan, Ceren; Fach Salihoğlu, Bettina; Department of Oceanography (2016-10-21)
Black Sea anchovy (Engraulis encrasicolus ponticus) undertake extensive (~1000km long) overwintering migration in autumn from northern spawning grounds to the overwintering areas located at the south-eastern coasts of the Black Sea. When arriving at the Anatolian coast, they support important fisheries in Turkey. Black Sea anchovy is known to experience stock variability quite frequently including stock collapses, which are believed to be closely linked with environmental conditions. Therefore, it is of imp...
Identification of demographic structure and population viability analysis of Gazella subgutturosa in Şanliurfa
Çobanoğlu, Aziz Emre; Kence, Meral; Department of Biology (2010)
Goitered gazelle (Gazella subgutturosa) is an Asian antelope species and it is classified as Vulnerable by IUCN. They have an economic, esthetic and cultural value; therefore, they had been hunted and domesticated for a long time. Additional human disturbance over years nearly led goitered gazelle populations in Turkey to extinction. Today in Turkey, only natural population of goitered gazelle lives in Şanlurfa. In this theses, demographic structure and population parameters of natural population goitered g...
Citation Formats
R. Janssen, S. Knudsen, V. Todorova, and H. A. Hoşgör, “Managing Rapana in the Black Sea: Stakeholder workshops on both sides,” OCEAN & COASTAL MANAGEMENT, pp. 75–87, 2014, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/43298.