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Bronze Award: Capture-Analyse-Predict (C.A.P): A Novel Method to Predict the Reproductive Output of Livebearing Fishes
Citation
Norazmi, LN and Patil, JG and Purser, GJ, Bronze Award: Capture-Analyse-Predict (C.A.P): A Novel Method to Predict the Reproductive Output of Livebearing Fishes, Research and Innovation Week 2019 Theme: Human Civilisation through Sustainable research and Innovation, Terengganu, Malaysia (2019) [Award]
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Abstract
In most livebearing fish such as mosquitofish and guppy, the gravid spot is an excellent marker
to identify brooding females, however its potential as a biomarker for other reproductive
attributes such as timing of parturition and clutch size previously remain unexplored. The
ability to predict reproductive output in livebearing fish is essential especially in high value
commercial species such as guppies where the price can reach up to RM 1000 per pair
depending on its varieties. Previously, the only method to know the reproductive output of
livebearing fishes are by either killing it or just waiting for it to parturate. This make it difficult
for breeders to manage their livebearing ornamental fish hatchery and plan their marketing
strategy in advance. Through C.A.P, breeders just need to capture the photo of the gravid
spot, analyse its intensity using any free user friendly software available online and insert the
value of the gravid spot intensity, fish size and weight into a specified mathematical formula
that have been developed and tested for its reliability. Breeders can then easily predict the
reproductive output of their broodstock in advance thus easing its hatchery and production
management (amount of broodstock needed to fulfil market demand, tanks, food needed
etc). This novel technique can also be used by aquatic ecology and aquaculture science
researchers doing downstream reproductive investigations on livebearing fish both in the
field and laboratory.
Item Details
| Item Type: | Award |
|---|---|
| Keywords: | gravid spot, reproductive output |
| Research Division: | Agricultural, Veterinary and Food Sciences |
| Research Group: | Fisheries sciences |
| Research Field: | Fish physiology and genetics |
| Objective Division: | Animal Production and Animal Primary Products |
| Objective Group: | Fisheries - wild caught |
| Objective Field: | Fisheries - recreational freshwater |
| UTAS Author: | Norazmi, LN (Dr Lokman Norazmi) |
| UTAS Author: | Patil, JG (Dr Jawahar Patil) |
| UTAS Author: | Purser, GJ (Associate Professor John Purser) |
| ID Code: | 138304 |
| Year Published: | 2019 |
| Funding Support: | Australian Research Council (LP140100428) |
| Deposited By: | Fisheries and Aquaculture |
| Deposited On: | 2020-03-31 |
| Last Modified: | 2020-04-01 |
| Downloads: | 0 |
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