Differentiation between "marinus" and "mentella" types of redfish by electrophoresis of haemoglobins
Haemoglobins of 225 specimens of redfish from the Barents Sea and 357 specimens from Icelandic waters were analysed by electrophoresis to search for genetic differences between the morphologian marinus and mentella types. Two main haemoglobin patterns were commonly found, one characteristic for redf...
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[Fiskeridirektoratets havforskningsinstitutt]
1978
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ftimr:oai:imr.brage.unit.no:11250/114450 2023-05-15T15:38:36+02:00 Differentiation between "marinus" and "mentella" types of redfish by electrophoresis of haemoglobins Nævdal, Gunnar 1978 432901 bytes application/pdf http://hdl.handle.net/11250/114450 eng eng [Fiskeridirektoratets havforskningsinstitutt] Fiskeridirektoratets skrifter, Serie Havundersøkelser vol 16 no 10 http://hdl.handle.net/11250/114450 s. 359-368 Research report 1978 ftimr 2021-09-23T20:15:02Z Haemoglobins of 225 specimens of redfish from the Barents Sea and 357 specimens from Icelandic waters were analysed by electrophoresis to search for genetic differences between the morphologian marinus and mentella types. Two main haemoglobin patterns were commonly found, one characteristic for redfish of the mentella type and one characteristic for the marinus type. Specimens of Sebastes viviparus showed the marinus haemoglobin pattern. Morphological "intermediates" showed the marinus pattern in the Barents Sea while some specimens, which showed the mentella hemoglobin patterns, but could not be separated morphologically from the marinus type, were recorded in the Icelandic-Faeroe Ridge area. Four specimens showed a haemoglobin pattern which indicated hybridization between individuals with different haemoglobin pattern. The results indicate that Sebastes mentella Travin is a species distinct form Sebastes marinus (L), possibly with occasional interbreeding. However, for final conclusion about the species of redfish in the North Atlantic samples have to be collected from the total range of the redfish's distribution. Report Barents Sea North Atlantic Sebastes marinus Sebastes mentella Institute for Marine Research: Brage IMR Barents Sea |
institution |
Open Polar |
collection |
Institute for Marine Research: Brage IMR |
op_collection_id |
ftimr |
language |
English |
description |
Haemoglobins of 225 specimens of redfish from the Barents Sea and 357 specimens from Icelandic waters were analysed by electrophoresis to search for genetic differences between the morphologian marinus and mentella types. Two main haemoglobin patterns were commonly found, one characteristic for redfish of the mentella type and one characteristic for the marinus type. Specimens of Sebastes viviparus showed the marinus haemoglobin pattern. Morphological "intermediates" showed the marinus pattern in the Barents Sea while some specimens, which showed the mentella hemoglobin patterns, but could not be separated morphologically from the marinus type, were recorded in the Icelandic-Faeroe Ridge area. Four specimens showed a haemoglobin pattern which indicated hybridization between individuals with different haemoglobin pattern. The results indicate that Sebastes mentella Travin is a species distinct form Sebastes marinus (L), possibly with occasional interbreeding. However, for final conclusion about the species of redfish in the North Atlantic samples have to be collected from the total range of the redfish's distribution. |
format |
Report |
author |
Nævdal, Gunnar |
spellingShingle |
Nævdal, Gunnar Differentiation between "marinus" and "mentella" types of redfish by electrophoresis of haemoglobins |
author_facet |
Nævdal, Gunnar |
author_sort |
Nævdal, Gunnar |
title |
Differentiation between "marinus" and "mentella" types of redfish by electrophoresis of haemoglobins |
title_short |
Differentiation between "marinus" and "mentella" types of redfish by electrophoresis of haemoglobins |
title_full |
Differentiation between "marinus" and "mentella" types of redfish by electrophoresis of haemoglobins |
title_fullStr |
Differentiation between "marinus" and "mentella" types of redfish by electrophoresis of haemoglobins |
title_full_unstemmed |
Differentiation between "marinus" and "mentella" types of redfish by electrophoresis of haemoglobins |
title_sort |
differentiation between "marinus" and "mentella" types of redfish by electrophoresis of haemoglobins |
publisher |
[Fiskeridirektoratets havforskningsinstitutt] |
publishDate |
1978 |
url |
http://hdl.handle.net/11250/114450 |
geographic |
Barents Sea |
geographic_facet |
Barents Sea |
genre |
Barents Sea North Atlantic Sebastes marinus Sebastes mentella |
genre_facet |
Barents Sea North Atlantic Sebastes marinus Sebastes mentella |
op_source |
s. 359-368 |
op_relation |
Fiskeridirektoratets skrifter, Serie Havundersøkelser vol 16 no 10 http://hdl.handle.net/11250/114450 |
_version_ |
1766369711269871616 |