Ayvalık Karadiken

Ayvalık Karadiken (Paracentrotus lividus), a purple-to-black colored delicacy endemic to the Ayvalık district, was granted geographical indication protection on 4 January 2024. This study examines the definition, physical-chemical properties, production process, and regional value of this delicacy. According to the geographical indication certificate, Ayvalık Karadiken was officially registered on 4 January 2024 by the Ayvalık Municipality and protected as a “Mahreç Mark” unique to Balıkesir Province.

Bio-pomological Characteristics

The Ayvalık Karadiken is characterized by a purple-to-black shell, a spiny structure, and an average diameter of approximately 5 cm. The gonad portion, which constitutes about 10% of the specimen, contains high levels of protein (≥9%) and dry matter (≥15%).

Production and Processing Methods

• Collected by diving during the winter season (December–March) from rocky substrates at depths of up to 80 meters from the coast. Female specimens are preferred due to their easily separable gonads, which resemble small stones. Careful cutting is performed to extract the internal gonad.
• Served as a meze either plain or with olive oil and lemon juice.
• Packaged in hygienic glass containers and distributed through the cold chain.

Geographical and Socio-economic Context

The uniqueness of Ayvalık Karadiken to Ayvalık is emphasized in relation to its production process and historical consumption culture, which contribute significantly to the regional economy. Academic research on geographical indications within Balıkesir Province identifies Ayvalık Karadiken as a product representing the local richness of the Ayvalık district.

Ayvalık Karadiken is nutritionally valuable due to its high protein and dry matter content. It holds a traditional place in regional gastronomy through the meze culture. The geographical indication registration is expected to enhance its quality, recognition, and economic value. Ecological criteria such as sustainability, hygiene, and prevention of overharvesting are actively upheld.