Ekman-Birge grab sampler

Figure 5 (a) Ekman-Birge grab sampler for clay or loamy sediments and (b) Smith-Mcintyre grab... 

All sampling locations are given in Table 1 and are illustrated in Figure 1. The sediment samples were taken in 1993/4. Surface sediment samples (Sl-Sll, S13, S14, H1-H4, H6, H9, Tl, T4-T6) were collected with an Ekman-Birge-grab sampler yielding up to 20 cm of the top layer. 

Four sediment samples were taken in 1998 and 1999 from three locations at the Teltow Canal in Berlin, as indicated in Fig. 1. In addition to the surface sediment samples T1 and T3 taken by means of a 4L Ekman-Birge grab sampler a short sediment core T2 was obtained by using a tube coring device. The sediment core was subdivided into an upper part T2a (0-3 cm) and a lower part T2b (3-10 cm), that represents an older accumulation time between 1980 and 1990. 

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