||Chromosomes of the Marine Worm 'Nephtys incisa' (Annelida: Polychaeta).
Pesch, G. G. ;
Mueller, C. ;
Pesch, C. E. ;
||Science Applications International Corp., Narragansett, RI.;Environmental Research Lab., Narragansett, RI.
||EPA-68-03-3529; EPA/600/J-88/450 ; ERLN-890
Marine biology ;
Size determination ;
Environmental impacts ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
The chromosome complement for the marine worm, Nephtysincisa is described for the first time. The karyotype consists of 19 pairs: four pairs have median centromeres; three pairs have submedian centromeres; and twelve pairs have subterminal centromeres. The chromosomes are relatively large, ranging in size from 4 to 11 micrometers. The large size permits application of special techniques such as sister chromatid exchange. The usefulness of the application is demonstrated with a case study that evaluates environmental impacts of contaminated dredge material.