AI Article Synopsis
- * Out of 1,043 collected eggs, 76.13% had one yolk, 23.11% had no yolk, and 0.77% had two yolks, with the occurrence of non-yolk and double-yolk eggs being random.
- * After incubating the eggs for approximately 92 days, 72 skates hatched successfully, leading to a balanced gender ratio, which contributes valuable insights for the conservation and management of this species.
Article Abstract
This study provides a novel record of the reproductive behaviour of the Kong skate (Okamejei kenojei) in captivity. These skates were found to mate and deposit eggs at a temperature of 16.5 ± 0.5°C. The results showed that 76.13% of the eggs possessed one yolk, 0.77% of the eggs possessed two yolks and 23.11% of the eggs had no yolk (N = 1043). The deposition of non-yolk and double-yolk eggs was random. A total of 100 eggs were collected. After nearly 92 ± 5 days of incubation, 28 eggs failed to hatch, and 72 skates were successfully hatched with a female-to-male ratio of 1:1 (P > 0.05). The results enrich our knowledge of the reproduction in cartilaginous fishes and can inform management and conservation strategies for this species.
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