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black sea red data book - Department of Biology

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Synonyms: None<br />

Branchinectella media Schmankewitsch, 1873<br />

Common names: Russ: Brankhinektella s<strong>red</strong>nyaya; Ukr: Brankhinektella se<strong>red</strong>nyaya<br />

Taxonomic description. One <strong>of</strong> two species <strong>of</strong> this genus <strong>of</strong> fairy shrimp, shaped<br />

more or less like an Artemia, in the fauna <strong>of</strong> Eurasia.<br />

IUCN Status<br />

World level:<br />

Black Sea Regional level: EN<br />

Subregion level: EN (Ukrainian sector)<br />

Distribution. The species range includes South Europe, Northern Kazakhstan, North<br />

Africa (Marocco, Algeria). Discove<strong>red</strong> in the north-west Black Sea basin in saline<br />

waters <strong>of</strong> the Kinburn peninsula and adjacent areas <strong>of</strong> the Kherson and Mikolaiv<br />

districts (Golaya Pristan, Ochakov).<br />

Habitat type, Critical habitats, Limiting factors. Saline water-bodies (salinity 1.5-<br />

4.0 ppt), drying-out lakes in saline swamps.<br />

<strong>Biology</strong>. A halobiont; a filtering organism which feeds on phytoplankton, detritus,<br />

organic matter and bacteria. Active at water temperatures <strong>of</strong> 4-24 °C for 35-55 days<br />

(from late March to late May). Produces resting eggs, in 3-6 broods <strong>of</strong> 12-120 eggs<br />

each. Length <strong>of</strong> the different life cycle periods: nauplial 10-14, prereproductive -12-<br />

17, reproductive - 26-34 days.<br />

Order ANOSTRACA<br />

Family CHIROCEPHALIDAE<br />

144

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