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A population study of the shrimp Crangon allmanni in the German Bight
Blahudka, S.; Türkay, M. (2002). A population study of the shrimp Crangon allmanni in the German Bight. Helgol. Mar. Res. 56(3): 190-197. http://dx.doi.org/10.1007/s10152-002-0110-6
In: Helgoland Marine Research. Springer: Berlin; Heidelberg. ISSN 1438-387X; e-ISSN 1438-3888, more
Peer reviewed article  
Available in  Authors 
Keywords
    Crangon allmanni Kinahan, 1860 [WoRMS]
    ANE, Germany, German Bight [Marine Regions]
    Marine/Coastal
Author keywords
    Crangon allmanni; German Bight; population structure; reproduction
Authors  Top 
  • Blahudka, S.
  • Türkay, M., more
Abstract
    The only reproducing population of Crangon allmanni within the German Bight is in the Helgoland Trench (HTR), a depression of more than 50 m depth south of Helgoland. In coastal and shallower offshore waters the shrimp is much rarer and is recorded in higher numbers only in early spring when the water is still cold. The life cycle of the HTR population lasts for about 1.5 years maximum. Recruitment takes place in summer, and these recruits form the reproducing population of the next year. The shrimps are sensitive to environmental stress and are therefore good indicators of environmental changes.
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