Integrated Marine Information System (IMIS)
|Comparison of three different extraction methods for Turbellaria|
|Martens, P.M. (1984). Comparison of three different extraction methods for Turbellaria Mar. Ecol. Prog. Ser. 14: 229-234|
|In: Marine Ecology Progress Series. Inter-Research: Oldendorf. ISSN 0171-8630|
|Also published as |
- Martens, P.M. (1984). Comparison of three different extraction methods for Turbellaria, in: (1984). IZWO Coll. Rep. 14(1984). IZWO Collected Reprints, 14: pp. chapter 18 [Subsequent publication], more
Turbellaria [Flatworms] [WoRMS]; Marine
Three different extraction methods for Turbellaria were compared, 2 of which use living material. The first method is based on sea-water ice treatment (Uhlig-method), the second employs decantation of narcotized fauna (MgCl2-method). The third method is the Barnett-method, performed on preserved material. Three series of 12 samples each were analysed quantitatively. Turbellaria were counted and identified to the order level. For the turbellarian population as a whole, the numbers of individuals extracted alive (Uhlig- or MgCl2-method) was less than 50% of the number extracted from the preserved samples (Barnett-method). Differences between Uhlig-method and MgCl2-method were not statistically significant. However, for Acoela and Retronectida, the Uhlig-method was more efficient than both other methods. We conclude that for a reliable quantitative analysis of Turbellaria 2 different extraction methods are required: one should employ extraction of living material (Uhlig-method) and one extraction of fixed material. For qualitative investigations extraction of living material is recommended.