Biology and hatchery rearing of the silver therapon Leiopotherapon plumbeus

Aya, Frolan; Garcia, Luis Maria

dc.contributor.author	Aya, Frolan
dc.contributor.author	Garcia, Luis Maria
dc.date.accessioned	2020-07-03T06:44:07Z
dc.date.available	2020-07-03T06:44:07Z
dc.date.issued	2020-07
dc.identifier.citation	Aya, F. A., & Garcia, L. M. B. (2020). Biology and hatchery rearing of the silver therapon Leiopotherapon plumbeus. Tigbauan, Iloilo, Philippines: Aquaculture Department, Southeast Asian Fisheries Development Center.	en
dc.identifier.issn	0115-5369
dc.identifier.uri	http://hdl.handle.net/10862/5898
dc.description	Known for its tasty flesh, silver therapon, locally known as ayungin, has been regarded to be one of the most valuable edible native freshwater species in the Philippines. Demands for this fish species remain high which caused the wild stock supply to decline. According to the Philippine Statistics Authority, catch for this fish has deteriorated from 4,765 metric tons in 2002 to only 1,408 metric tons in 2018. Due to this growing concern, a hatchery technique was devised by an AQD scientist to aid the deteriorating population of the species in the Philippine waters. This protocol, just like other technologies developed by SEAFDEC/AQD, will be for free and open to fish farmers interested to venture into ayungin culture. This new system of growing ayungin larvae in captivity was granted a patent by the Intellectual Property Office of the Philippines (IPOPHIL) in 2019, published in Volume 22, Number 124 of the office’s official gazette. This manual contains the patented technique which will provide current knowledge on the biology, breeding, and seed production of ayungin. It aims to serve as a useful reference for students, aquaculturists, researchers, government fishery agency personnel who are interested in the breeding and culture of the native fish species. Refinements on the technology for seed production and rearing of this specific species are still being continued. SEAFDEC/AQD is aiming to conduct more research in the development of nursery and grow-out technology. The Department is also gearing towards developing techniques for bigger culture systems which will be fit for commercial production. This is to help stakeholders and the industry boosts the economy through the production of this endemic species.	en
dc.format.extent	[ii], 32 pages : color illustrations.	en
dc.language.iso	en	en
dc.publisher	Aquaculture Department, Southeast Asian Fisheries Development Center	en
dc.relation.ispartofseries	Aquaculture extension manual; No. 67
dc.subject	Philippines	en
dc.subject.lcsh	Freshwater fishes--Breeding	en
dc.subject.lcsh	Freshwater fishes--Growth	en
dc.subject.lcsh	Freshwater fishes--Feeding and feeds	en
dc.subject.lcsh	Freshwater fishes--Reproduction	en
dc.subject.lcsh	Fish culture	en
dc.subject.lcsh	Handbooks and manuals	en
dc.subject.other	ayungin
dc.title	Biology and hatchery rearing of the silver therapon Leiopotherapon plumbeus	en
dc.type	Book	en
dc.subject.asfa	biology	en
dc.subject.asfa	distribution records	en
dc.subject.asfa	growth	en
dc.subject.asfa	size	en
dc.subject.asfa	diet	en
dc.subject.asfa	feeding	en
dc.subject.asfa	nutritional requirements	en
dc.subject.asfa	reproduction	en
dc.subject.asfa	breeding stock	en
dc.subject.asfa	breeding	en
dc.subject.asfa	selection	en
dc.subject.asfa	hormones	en
dc.subject.asfa	larval stage	en
dc.subject.asfa	rearing techniques	en
dc.subject.asfa	fish hatcheries	en
dc.subject.asfa	incubation period	en
dc.subject.asfa	culture tanks	en
dc.subject.asfa	economic analysis	en
dc.subject.asfa	cost benefit analysis	en
dc.subject.asfa	fish culture	en
dc.subject.asfa	freshwater aquaculture	en
dc.subject.asfa	aquaculture	en
dc.subject.asfa	aquaculture development	en
dc.subject.asfa	aquaculture techniques	en
dc.subject.scientificName	Leiopotherapon plumbeus	en
local.subject	Silver perch	en
local.subject	Silver therapon	en
local.subject	Ayungin	tgl