Research Article

Comparison of reproductive performance of Black Sea salmon broodstock (Salmo labrax PALLAS, 1814) reaching first sexual maturity at different ages

Volume: 40 Number: 3 September 15, 2023
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Comparison of reproductive performance of Black Sea salmon broodstock (Salmo labrax PALLAS, 1814) reaching first sexual maturity at different ages

Abstract

The aim of this study was to determine the individual first maturation age diversity in hatchery-originated F6 generation of Black Sea salmon (Salmo labrax) broodstock created by applying for a selective breeding program. Research was carried out in freshwater ponds and marine net cage systems between 2018-2021. In the study, 136, 87 and 3 individuals from the broodstocks that reached the first sexual maturity at the age of 22, 34 and 46 months were used, respectively. Total egg production, relative egg production, egg diameter and fertilization rates were determined at the first stripping of broodstock that reached sexual maturity at different ages. The first gonadal development controls and stripping studies were carried out in the period of 2018-2019 for 22 months old broodstock, 2019-2020 for 34 months old and 2020-2021 for 46 months old. Total fecundity of 22, 34 and 46 months old broodstocks that were stripped, were calculated at 1108.98±40.73, 3869.02±138.43 and 5899.52±1143.78 egg/kg broodstock, relative fecundity was 3024.87±87.52, 2291.90±89.52 and 1816.00±284.51 egg/kg broodstock, egg diameters were 4.40±0.01, 5.07±0.02 and 5.35±0.09 mm and fertilization rates were determined as 92.21±0.87%, 95.69±1.65% and 89.83±2.77%, respectively. The condition factor values of the rootstocks were determined as 1.05±0.02 (22 months old), 1.09±0.01 (34 months old) and 1.08±0.03 (46 months old). In the broodstock, individuals with a first maturation age of 22 months have predominantly red spots with a white halo around the perimeter, silvery coloration with black spots at 34 months of age, and silvery coloration with black spots at 46 months of age were detected. While enterprises that reared Black Sea salmon in freshwater and have restaurants prefer the red-spotted river ecotype for production, enterprises that produce in marine net cages prefer the black-spotted-silver-colored marine ecotype, whose body coloration is similar to Atlantic salmon.

Keywords

Supporting Institution

TAGEM

References

  1. Barach, G.P. (1962). Chernomorskaya kumzha (losos’-forel’) (The Black Sea trout (Salmon-Trout)), Tbilisi: Izd. Akad. Nauk GruzSSR
  2. Behnke, R.J. (1968). A new subgenus and species of trout Salmo (Platysalmo) platycephalus, from south-central Turkey with comments on the classification of the subfamily Salmoninae. Mitteilungen aus dem Hamburgischen Museum und Institut, 66, 1–15.
  3. Bromage, N., Hardiman, P., Jones, J., Springate, J., & Bye, V. (1990). Fecundity, egg size and total egg volume differences in 12 stocks of rainbow trout, Oncorhynchus mykiss Richardson. Aquaculture Research, 21(3), 269-284. https://doi.org/10.1111/j.1365-2109.1990.tb00465.x
  4. Bromage, N., Jones, J., Randall, C., Thrush, M., Davies, B., Springate, J., Duston, J., & Barker, G. (1992). Broodstock management, fecundity, egg quality and the timing of egg production in the rainbow trout (Oncorhynchus mykiss). Aquaculture, 100(1-3), 141-166. https://doi.org/10.1016/0044-8486(92)90355-O
  5. Çakmak, E., Aksungur, N., Firidin, Ş., Akbulut, B., Başçınar, N.S., Çavdar, Y., Kurtoğlu, İ.Z., Ergün, H., Savaş, H., Üstündağ, E., Alkan, A., Aksungur, M., Zengin, B., Serdar, S., Fidan, D., Özkan, B., Erteken, A. (2011). Bringing Black Sea trout (Salmo trutta labrax Pallas, 1811) to the private sector. Project final report. (TAGEM/HAYSÜD/2006/09/03/02). Trabzon-2011/2, 157 pp. (in Turkish)
  6. Çakmak, E., Firidin, Ş., Düzgüneş, Z. D., & Parlak, R. (2019). The age-dependent reproductive performance of 4th generation Black Sea Trout (Salmo labrax Pallas, 1814) Females. Turkish Journal of Fisheries and Aquatic Sciences, 19(6), 496-502. https://doi.org/10.4194/1303-2712-v19_6_05
  7. Çakmak, E., Firidin, Ş., Aksungur, N., Çavdar, Y., Kurtoğlu, İ., Aksungur, M., Özel, O.T, Çankırılıgil, E. C., Düzgüneş, Z., & Batır, E. (2022). Improving the Reproductive Yield of Black Sea Salmon (Salmo labrax PALLAS, 1814) with a Selective Breeding Program. Aquatic Sciences and Engineering, 37(3), 161-168. https://doi.org/10.26650/ASE20221079847
  8. Dorofeeva, E.A. (2002). The Genus Thymallus. Atlas of Freshwater Fish of Russia, 163-169.

Details

Primary Language

English

Subjects

Pisciculture

Journal Section

Research Article

Early Pub Date

September 3, 2023

Publication Date

September 15, 2023

Submission Date

February 3, 2023

Acceptance Date

June 21, 2023

Published in Issue

Year 1970 Volume: 40 Number: 3

APA
Özel, O. T., Çakmak, E., Çankırılıgil, E. C., Düzgüneş, Z. D., Çimagil, R., & Batır, E. (2023). Comparison of reproductive performance of Black Sea salmon broodstock (Salmo labrax PALLAS, 1814) reaching first sexual maturity at different ages. Ege Journal of Fisheries and Aquatic Sciences, 40(3), 166-173. https://doi.org/10.12714/egejfas.40.3.02