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http://dx.doi.org/10.5657/KFAS.2020.0043

Maturation and Spawning of the Red Seabream Pagrus major in the South Sea of Korea  

Jin, Suyeon (Department of Seafood & Aquaculture Science/Institute of Marine Industry/Marine Bio-Education & Research Center, College of Marine Science, Gyeongsang National University)
Im, Yang Jae (Fisheries Resources Research Center, National Institute of Fisheries Science)
Choi, Jung Hwa (Fisheries Resources Research Center, National Institute of Fisheries Science)
Jeong, Jae Mook (Fisheries Resources Research Center, National Institute of Fisheries Science)
Nam, Ki Mun (Pukyong Marine Life Research Institute)
Kim, Do-Gyun (Department of Seafood & Aquaculture Science/Institute of Marine Industry/Marine Bio-Education & Research Center, College of Marine Science, Gyeongsang National University)
Choi, Yu Jeong (Department of Seafood & Aquaculture Science/Institute of Marine Industry/Marine Bio-Education & Research Center, College of Marine Science, Gyeongsang National University)
Baeck, Gun Wook (Department of Seafood & Aquaculture Science/Institute of Marine Industry/Marine Bio-Education & Research Center, College of Marine Science, Gyeongsang National University)
Publication Information
Korean Journal of Fisheries and Aquatic Sciences / v.53, no.1, 2020 , pp. 43-49 More about this Journal
Abstract
The maturation and spawning of red seabream Pagrus major were investigated using 1,014 samples collected monthly from January to December of 2018, in the South Sea of Korea. Based on monthly changes in maturity stage and gonadosomatic index, the spawning period was estimated to be between April and August, with peak spawning occuring from May to June. Fecundity varied between 228,996 and 4,544,948 eggs. The relationship between fecundity (F) and fork length (FL) in this species can be expressed by the equation F=0.4869FL3.9452 (R2=0.7448). Using a logistic function, the percentage of sexually mature females was estimated to be over 50% for fish with a FL of 35.3 cm.
Keywords
Red seabream; Pagrus major; Spawning period; Maturation; Spawning;
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