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black sea red data book - Department of Biology

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<strong>Biology</strong>. A typical contourobiont inhabiting almost exclusively the sandy bottom<br />

mediolittoral (pseudolitoral). Its prefer<strong>red</strong> habitat is coarse sand, free <strong>of</strong> mud. It<br />

burrows headfirst into the sand and forms a channel for respiratory currents.<br />

Population trends. A sharp decline in numbers since the 1980s. A <strong>red</strong>uction <strong>of</strong> 70-<br />

80% over the last 10 years.<br />

Threats. Pollution <strong>of</strong> the mediolittoral stripe, changes in the granulometric<br />

composition <strong>of</strong> the sand, silting and trampling in recreational areas.<br />

Conservation measures taken. None so far.<br />

Conservation measures proposed. Include species in Black Sea Red Data Book.<br />

References<br />

Bacescu M., G. I. Muller & M.-T. Gomoiu, 1971. Ecol. mar. 4: 1-259.<br />

Bacescu M., M.-T. Gomoiu & E. Dumitrescu,1968. Quelques considerations sur la<br />

dynamique des organismes de la zone mediolittorale sableuse en Mer Noire. Rapp.<br />

Comm. int. MerMedit. 10: 117-119.<br />

Gomoiu M-T., 1969. Some aspects <strong>of</strong> the Black Sea benthos. Hidrobiología 10: 256-<br />

277.<br />

Marinov, T., 1977. Mnogochetinesty chervy (Polychaeta). Fauna na Bulgaria (Fauna<br />

<strong>of</strong> Bulgaria) 6: 258 pp. (in Bulgarian).<br />

Mokievsky, O., 1949. Fauna rykhlikh gruntov litoraly zapadnykh beregov Kryma<br />

(Fauna <strong>of</strong> s<strong>of</strong>t bottoms in the western Crimean littoral). Tr. Inst. Okeanolog. 4:124-<br />

159 (in Russian).<br />

Vinogradov, K. A. & G. V. Losovskaya, 1968. Klass mnogoshetinkovye chervi -<br />

Polychaeta (Polychaeta worms in the Black Sea). In: Op<strong>red</strong>elitel fauny Chemogo i<br />

Azovskogo morey (A key to Black Sea and Sea <strong>of</strong> Azov fauna). Kiev, Naukova<br />

Dumka 1: 251-359 (in Russian).<br />

Compiled by C. Dumitrache & Y. P. Zaitsev.<br />

296

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