Studies on the reproductive biology of the Donkey's ear abalone, Haliotis asinina Linné
MetadataShow full item record
Cited times in Scopus
The sex ratio, initial size at sexual maturity, spawning period, time interval between successive spawnings and fecundity of the Donkey's ear abalone, Haliotis asinina were studied. The sex ratio of wild abalone (>60 mm shell length) collected from Panagatan Cays, Antique, Philippines was approximately 1:1. Sexual maturity was first attained at a size of 35.0 mm and 35.9 mm for hatchery-reared male and female abalone, respectively, and 40.6 mm for wild-caught male and female specimens. Based on calculated gonad bulk indices and histological observations, wild-caught abalone appeared capable of spawning during most months of the study period except June for males and May–June for females, during which most specimens collected were at a resting stage. This abalone species is a serial spawner with an asynchronous spawning behavior. Hatchery-reared abalone have short time intervals between successive spawnings of 13–15 days. Ripe females measuring 58.1–69 mm in shell length may release about 150,000 to 600,000 eggs per spawning.
Suggested CitationCapinpin Jr., E. C., Encena II, V. C., & Bayona, N. C. (1998). Studies on the reproductive biology of the Donkey's ear abalone, Haliotis asinina Linné.
- AQD 
Showing items related by title, author, creator and subject.
Gallardo, Wenresti G.; Salayo, Nerissa D. (Aquaculture Department, Southeast Asian Fisheries Development Center, 2003)There are about 100 species of abalone in the world, but only 20 are of high commercial importance. In the Philippines, the abalone species are Haliotis asinina, H. varia, H. ovina and H.glabra, but it is the former which ...
Castaños, Milagros T. (Aquaculture Department, Southeast Asian Fisheries Development Center, 1997)Details are given of the results of research conducted at the SEAFDEC Aquaculture Department on abalone (Haliotis asinina). The following areas are covered: reproductive biology; induced spawning; raising abalone in the ...