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black sea red data book - Department of Biology

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<strong>Biology</strong>. Reproduction: April-May. Eggs under shells or stones. Sexually mature<br />

after one year. Food: green algae, crustaceans, polychaetes, insects.<br />

Population trends. Declining.<br />

Threats. Industrial pollution.<br />

Conservation measures taken. Lake Shabla has been decla<strong>red</strong> a reserve.<br />

Conservation measures proposed. Decrease contamination.<br />

References<br />

Gheorgiev, J., 1966. Composition d'espèces et caractéristique des Gobiides (Pisces)<br />

en Bulgarie. Proc. Res. Inst. Fish. Oceanogr. Varna 7: 159-228.<br />

Miller, P., 1986. Fishes <strong>of</strong> the North-eastern Atlantic and the Mediterranean 3: p.<br />

1078.<br />

Compiled by Y. Sivkov & K. Prodanov.<br />

332

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