General information |
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| Merluccius merluccius (Linnaeus, 1758) | ||
| Common name | European hake, Saqqaya | |
| Synonyms |
- |
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| IUCN Red List status (2014) | Not Reported |
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| Habitat | Saltwater |
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| Systematics |
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Actinopterygii; Neopterygii; Teleostei; Neoteleostei; Acanthomorphata; Zeiogadaria; Gadariae; Gadiformes; Gadoidei; Merlucciidae. |
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| Geographical distribution | Israel; Egypt; Syria; Lebanon; Turkey; Algeria; Libya; Morocco; Mauritania; UK; Germany; France; Spain; Portugal; Italy; Greece; Bulgaria; Georgia; Norway; Sweden; Denmark; Iceland; Ireland; Belgium; Netherlands; Albania; Bosnia and Herzegovina; Croatia; Cyprus; Gibraltar; Isle of Man; Malta; Monaco; Montenegro; Slovenia; Tunisia |
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| Occurrence | Native: Israel, Egypt, Syria, Lebanon, Turkey, Algeria, Libya, Morocco, Mauritania, UK, Germany, France, Spain, Portugal, Italy, Greece, Bulgaria, Georgia, Norway, Sweden, Denmark, Iceland, Ireland, Belgium, Netherlands, Albania, Bosnia and Herzegovina, Croatia, Cyprus, Gibraltar, Isle of Man, Malta, Monaco, Montenegro, Slovenia, Tunisia |
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| Importance | ||
| Remarks | No karyotype differences detected among males and females neither from larvae and adults nor from individuals collected at different places. |
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Karyological information |
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| Geographical area of study | Instituto Español de OceanografÃa in Vigo (NW Spain) and Outer part of RÃas de Vigo and Pontevedra (NW Spain). | |
| Source of chromosomes | Larvae and whole branchial arches. |
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| Number of specimens with sex | 40 [20 larvae; 20 adults (10 males; 10 females)]. |
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| Diploid chromosome number | 42 |
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| Karyotype formula | 6m/sm+36st/t |
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| Fundamental arm number | Not reported. |
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| Chromosome length | Not reported. |
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| Sex chromosome | Not present. |
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| Chromosome staining/banding/FISH | This species showed a single 45S rDNA cluster at an intercalary location on the long arm of subtelocentric chromosome pair 12; 5S rDNA probe localized at intercalary position of long arm of telocentric chromosome pair 4. U2 snRNA gene signals appeared at subcentromeric region on long arm of chromosome 13 and U1 snRNA gene cluster were scattered throughout most chromosome pairs. Telomeric sequences appear exclusively at both ends of every single chromosome. |
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| Reference(s) |
GarcÃa-Souto D, Troncoso T, Pérez M, Pasantes JJ (2015). Molecular cytogenetic analysis of the European Hake Merluccius merluccius (Merlucciidae, Gadiformes): U1 and U2 snRNA gene clusters map to the same location. PLoS ONE 10(12): e0146150. doi:10.1371/journal.pone.0146150. |
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