Species cultured in cages of Japan:

Correct option is A

Correct Answer: (a) Yellowtail
Explanation:
→ Japanese yellowtail (Seriola quinqueradiata) is a major species cultured in sea cages in Japan — cage culture of yellowtail (and other Seriola spp.) is well established for high-value marine aquaculture.
→ Cage systems allow rapid grow-out in coastal waters with feed management.
Information Booster:
→ Cage culture in Japan also includes species like amberjack and salmon in colder regions.
Additional Information (Other Options):
(b–d): Catla and murrel are freshwater species; mullet is cultured but yellowtail is the iconic Japanese cage species.