Electrophoretic studies of redfish (Genus sebastes) from Icelandic and Greenland waters
Sebastes spp. from Icelandic and Greenland waters were analysed for biochemical genetic variation by agar gel and starch gel electrophoresis. The main emphasize was put on S. marinus, but the oceanic type S. mentella from the Irminger sea and S. viviparus from coastal Icelandic waters were studied f...
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ftimr:oai:imr.brage.unit.no:11250/105064 2023-05-15T15:51:49+02:00 Electrophoretic studies of redfish (Genus sebastes) from Icelandic and Greenland waters Nedreaas, Kjell Harald Nævdal, Gunnar Johansen, Torild 1992 application/pdf http://hdl.handle.net/11250/105064 eng eng ICES ICES CM Documents;1992/G:36 This report is not to be cited without prior reference to the authors http://hdl.handle.net/11250/105064 6 s. redfish uer stock assessment bestandsberegning sampling prøvetaking VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Resource biology: 921 VDP::Mathematics and natural science: 400::Geosciences: 450::Oceanography: 452 Working paper 1992 ftimr 2021-09-23T20:15:25Z Sebastes spp. from Icelandic and Greenland waters were analysed for biochemical genetic variation by agar gel and starch gel electrophoresis. The main emphasize was put on S. marinus, but the oceanic type S. mentella from the Irminger sea and S. viviparus from coastal Icelandic waters were studied for comparisons. The results were compared to earlier studies on material from East Greenland. Faroe Islands, British sector and off the Norwegian coast (Nedreaas and Nævdal 1991). The S. marinus samples were collected southwest of Iceland, on the southeast coast, north of Iceland and from both sides of Cape Farewell. S. viviparus were collected from five localities south of Iceland. Haemoglobin and three enzymes in liver and muscle tissue were analysed by use of agar gel and starch gel electrophoresis. Isocitrate dehydrogenase (IDH) were analysed because it shows polymorphism in liver tissue; malate dehydrogenase (MDH), malic enzyme (ME) and haemoglobins first of all because they are species specific. The oceanic type S. mentella showed no polymorphism in either of the enzymes and showed an overall picture identical to what has been found in this species in other areas. Idh-genotypes in the samples from Iceland S. marinus showed a similar distribution as found around Faroe Islands and the coast of Norway while the Greenland samples were deviating. Intersample differences were indicated also in S. viviparus. Pattern of MDH was diagnostic for S. viviparus. In all three species were found somewhat unclear variations that will be further studied., The haemoglobin patterns were monomorphic in all three species, and as found before, clearly diagnostic for S. mentella, while considerable variation were noted in the material of S. marinus from Greenland. Report Cape Farewell East Greenland Faroe Islands Greenland Iceland Institute for Marine Research: Brage IMR Faroe Islands Greenland Norway Irminger Sea ENVELOPE(-34.041,-34.041,63.054,63.054) |
institution |
Open Polar |
collection |
Institute for Marine Research: Brage IMR |
op_collection_id |
ftimr |
language |
English |
topic |
redfish uer stock assessment bestandsberegning sampling prøvetaking VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Resource biology: 921 VDP::Mathematics and natural science: 400::Geosciences: 450::Oceanography: 452 |
spellingShingle |
redfish uer stock assessment bestandsberegning sampling prøvetaking VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Resource biology: 921 VDP::Mathematics and natural science: 400::Geosciences: 450::Oceanography: 452 Nedreaas, Kjell Harald Nævdal, Gunnar Johansen, Torild Electrophoretic studies of redfish (Genus sebastes) from Icelandic and Greenland waters |
topic_facet |
redfish uer stock assessment bestandsberegning sampling prøvetaking VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Resource biology: 921 VDP::Mathematics and natural science: 400::Geosciences: 450::Oceanography: 452 |
description |
Sebastes spp. from Icelandic and Greenland waters were analysed for biochemical genetic variation by agar gel and starch gel electrophoresis. The main emphasize was put on S. marinus, but the oceanic type S. mentella from the Irminger sea and S. viviparus from coastal Icelandic waters were studied for comparisons. The results were compared to earlier studies on material from East Greenland. Faroe Islands, British sector and off the Norwegian coast (Nedreaas and Nævdal 1991). The S. marinus samples were collected southwest of Iceland, on the southeast coast, north of Iceland and from both sides of Cape Farewell. S. viviparus were collected from five localities south of Iceland. Haemoglobin and three enzymes in liver and muscle tissue were analysed by use of agar gel and starch gel electrophoresis. Isocitrate dehydrogenase (IDH) were analysed because it shows polymorphism in liver tissue; malate dehydrogenase (MDH), malic enzyme (ME) and haemoglobins first of all because they are species specific. The oceanic type S. mentella showed no polymorphism in either of the enzymes and showed an overall picture identical to what has been found in this species in other areas. Idh-genotypes in the samples from Iceland S. marinus showed a similar distribution as found around Faroe Islands and the coast of Norway while the Greenland samples were deviating. Intersample differences were indicated also in S. viviparus. Pattern of MDH was diagnostic for S. viviparus. In all three species were found somewhat unclear variations that will be further studied., The haemoglobin patterns were monomorphic in all three species, and as found before, clearly diagnostic for S. mentella, while considerable variation were noted in the material of S. marinus from Greenland. |
format |
Report |
author |
Nedreaas, Kjell Harald Nævdal, Gunnar Johansen, Torild |
author_facet |
Nedreaas, Kjell Harald Nævdal, Gunnar Johansen, Torild |
author_sort |
Nedreaas, Kjell Harald |
title |
Electrophoretic studies of redfish (Genus sebastes) from Icelandic and Greenland waters |
title_short |
Electrophoretic studies of redfish (Genus sebastes) from Icelandic and Greenland waters |
title_full |
Electrophoretic studies of redfish (Genus sebastes) from Icelandic and Greenland waters |
title_fullStr |
Electrophoretic studies of redfish (Genus sebastes) from Icelandic and Greenland waters |
title_full_unstemmed |
Electrophoretic studies of redfish (Genus sebastes) from Icelandic and Greenland waters |
title_sort |
electrophoretic studies of redfish (genus sebastes) from icelandic and greenland waters |
publisher |
ICES |
publishDate |
1992 |
url |
http://hdl.handle.net/11250/105064 |
long_lat |
ENVELOPE(-34.041,-34.041,63.054,63.054) |
geographic |
Faroe Islands Greenland Norway Irminger Sea |
geographic_facet |
Faroe Islands Greenland Norway Irminger Sea |
genre |
Cape Farewell East Greenland Faroe Islands Greenland Iceland |
genre_facet |
Cape Farewell East Greenland Faroe Islands Greenland Iceland |
op_source |
6 s. |
op_relation |
ICES CM Documents;1992/G:36 This report is not to be cited without prior reference to the authors http://hdl.handle.net/11250/105064 |
_version_ |
1766387210609754112 |