AGRDEU - Fachdatenbank für Aquatische Genetische Ressourcen: Detailed information On farm

General stock information

Common name
Tench
Scientific name
Tinca tinca (Linnaeus, 1758)
Recording year
2006
Federal state
Niedersachsen
Reference
Aquatische genetische Ressourcen - Laichfischbestände von Wirtschaftsfischarten in Deutschland

Husbandry parameters

Genetic parameters

Used molecular genetic methods
Mikrosatellitenanalyse
Tissue sample accession number
NDS 9 B_1-20
Number of individuals analyzed by microsatellites
20
Maximum number alleles per Microsatellite
9
Mean number of alleles
3.3
Allelic richness
3.27
Mean number of private allels
0.2
Expected degree of heterozygosity according to HWG (H_E)
0.368
Observed heterozygosity (H_O)
0.39
Inbreeding coefficient (F_IS)
-0.06
Minimal genetic divergence (F_ST min)
0.0056
Maximum genetic divergence (F_ST) to other populations of the same species
0.0641
Mean genetic divergence (F_ST) to other populations of the same species
0.042
Morphometric analyses
Erfassung verschiedener morphometrischer Merkmale
Average total length in mm
127.6
Average mass in g
56.51
Average Corpulence Factor
2.72
Standard length in percent of total length
84.27
Head length in percent of total length
24.07
Body height in percent of the total length
27.54
Body height min in percent of total length
13.53
Predorsal distance in percent of total length
43.05

Strain parameters

Age of strain
> 60 years
Strain management
closed breeding scheme
Number of male spawning fish
100
Number of female spawning fish
250
Number of males used for breeding
10
Number of females used for breeding
5
Effective population size
< 20
Main use direction
production of fish for human consumption
Main breeding objective
rearing and fattening performance
Selection intensity
high (below 10 %)
Average utilization period of spawning fish
long (over 5 years)
Spawning season
normal
Management forecast over the next 10 years
Maintenance of the breeding strain

Other

Detailed information On farm