Growth and production of the bivalve <i>Macoma balthica</i> (Linnaeus, 1758) (Cardiida: Tellinidae) in the southeastern Baltic Sea
We studied the growth and production of <i>Macoma balthica</i> in the southeastern part of the Baltic Sea. The maximum shell size of <i>M</i>. <i>balthica</i> was up to 23.5 mm, the maximum age was 13+ years. Linear growth is described by the Bertalanffy equation: for shallow water (9-40 m) and for deep water (41-81 m). The annual production of <i>M</i>. <i>balthica</i> in the shallow-water area (25.35 ± 1.72 kJ/m<sup>2</sup>) was lower than in the deep-water area (71.23 ± 4.48 kJ/m<sup>2</sup>); the <i>Р</i><sub><i></i>s</sub>/<i>B</i> ratio was 0.44 and 0.38, respectively.