Type of Publication: | Journal article |
URI (citable link): | http://nbn-resolving.de/urn:nbn:de:bsz:352-opus-38683 |
Author: | Eckmann, Reiner |
Year of publication: | 2003 |
Published in: | Fisheries Management and Ecology ; 10 (2003), 4. - pp. 233-239. - ISSN 0969-997X. - eISSN 1365-2400 |
DOI (citable link): | https://dx.doi.org/10.1046/j.1365-2400.2003.00345.x |
Summary: |
Alizarin red S from 200 to 5000 mg L-1 was used to mark the otoliths of whitefish embryos Coregonus lavaretus (L.) from 5 days after fertilization until shortly before hatching, to develop a method for evaluating the effect of stocking whitefish. Mark quality depended on developmental stage at the time of immersion. The best results were obtained when the otolith primordia had formed and had started aggregating to form the innermost part of the nucleus. This was verified by in vitro staining of otoliths where the primordia were more in-
tensely stained than the remaining part of the nucleus. The volume ratio eggs:ARS solution, which was 1:10 in all but two treatments, must be observed when comparing fluorochrome concentrations, as mark quality decreased at higher ratios of 1:5 and 1:2. An average mortality rate of 35% in the most successful treatments was considered tolerable for a mass-marking programme being used under commercial hatchery conditions. This method for marking otoliths of whitefish embryos with ARS during egg incubation is recommended for all those cases where marking of larvae is not possible. |
Subject (DDC): | 570 Biosciences, Biology |
Keywords: | alizarin, Coregonus, otolith marking, otolith primordia, whitefish |
Link to License: | Attribution-NonCommercial-NoDerivs 2.0 Generic |
Bibliography of Konstanz: | Yes |
ECKMANN, Reiner, 2003. Alizarin marking of whitefish, Coregonus lavaretus otoliths during egg incubation. In: Fisheries Management and Ecology. 10(4), pp. 233-239. ISSN 0969-997X. eISSN 1365-2400. Available under: doi: 10.1046/j.1365-2400.2003.00345.x
@article{Eckmann2003Aliza-8753, title={Alizarin marking of whitefish, Coregonus lavaretus otoliths during egg incubation}, year={2003}, doi={10.1046/j.1365-2400.2003.00345.x}, number={4}, volume={10}, issn={0969-997X}, journal={Fisheries Management and Ecology}, pages={233--239}, author={Eckmann, Reiner} }
Alizarin_marking_of_whitefish.pdf | 447 |