Skip to content
Research Article Open access CC BY 4.0

An Empirical Analysis on the Breeding and Feeding Behaviour of Estuarine Rice Fish Oryzias melastigma (McClelland, 1839)

Tushar Chakraborty, Asim Kumar Giri, Joydeep Das

Asian Journal of Fisheries and Aquatic Research · pp. 1–12 · Published 1 Jan 2025

10.9734/ajfar/2025/v27i1860

Abstract

The breeding and growth characteristics of Oryzias melastigma were investigated under controlled laboratory conditions to assess its suitability for aquaculture. The species exhibited a short-generation time of 2 to 3 months that thriving in artificial-seawater at 28°C with a 14-hour light/10-hour dark-cycle. Sexual-dimorphism became apparent after one-month; with males developing a prominent anal-fin, aiding sex identification for experimental-populations. Feeding-experiments revealed that Oryzias melastigma, preferentially consumed early instar mosquito-larvae, showing high feeding-efficiency, particularly on smaller-prey. Additionally, the species demonstrated increased reproductive-success when supplemented with Ulothrix, suggesting its effectiveness as a feed to enhance egg-production and hatchling-survival. The sensitivity of eggs and larvae to pollutants like ammonia and CO2 indicates the species' potential as a bio-indicator for water-quality. Statistical analysis of reproductive-output indicated that a mature-female, could produce over 1.5 million eggs annually; contributing to aquaculture-systems as a food-source for carnivorous-species. This potential-biomass, when applied to fish farming, could significantly enhance the production of species like Lates calcarifer. The study highlights breeding and feeding behaviour of estuarine rice fish, Oryzias melastigma.

Oryzias melastigma estuarine rice fish Indian medaka breeding and feeding behaviour

References (6)

  1. 1 The value of estuarine and coastal ecosystem services [DOI]
  2. 2 Effects of waterborne cadmium on thyroid hormone levels and related gene expression in Chinese rare minnow larvae [DOI]
  3. 3 Dietary CdSe/ZnS quantum dot exposure in estuarine fish: Bioavailability, oxidative stress responses, reproduction, and maternal transfer [DOI]
  4. 4 Feeding habits and seasonal trophic guilds structuring fish community in the bay mouth region of a tropical estuarine habitat [DOI]
  5. 5 Acute and Chronic Effects of Crude Oil Water-Accommodated Fractions on the Early Life Stages of Marine Medaka (Oryzias melastigma, McClelland, 1839) [DOI]
  6. 6 An annotated Bibliography on the breeding habits and development of fishes of the Indian region

Cited by 0

No indexed citations yet.

Article metrics

Real usage data collected on this platform.

25

Page views

0

PDF downloads

0

Outbound clicks

0

Citations

Views over time

Views by country

Approximate, from request IP at view time — not citizenship or institution. Countries with fewer than 5 views are grouped as "Other".

Traffic sources

Referring site, by host.

Views and downloads exclude known bots/crawlers. Citations combines this platform's own DOI-resolved index with each external source's own reported total — see Cited by above for individually listed citing works. Last refreshed 0 seconds ago.