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- Title
Male-Female Interactions for the Expression of Phenotypic Traits and Behavioral Performance of the Male Giant Freshwater Prawn (Macrobrachium rosenbergii).
- Authors
Alkhamis, Yousef Ahmed; Mohona, Tania Sultana; Mathew, Roshmon Thomas; Chisty, Md. Ayaz Hasan; Rahman, Md. Moshiur; Noby, Md. Mahmudun; Rahman, Sheikh Mustafizur
- Abstract
The present study explored the effects of male-female interactions on the behavior and phenotypic expression of giant freshwater prawn Macrobrachium rosenbergii. Juvenile male (1) and female (1) prawns were randomly assigned into three treatments having different M and sex ratios and stocking densities such as T1 - only (1, 3 and 5); T2 - single 1: multiple (1:1, 1:3 and 1:5) and T3 - multiple 1 single (1:1, 3:1 and 5:1). Results showed that males in 1: 1 occupied significantly more territory (P<0.05) than 1, while, males in 5 treatment showed significant territory occupation (P<0.05) than males in 1: 3, 1: 5 and 5: 1. In female choice trials, males kept without females (1, 3 and 5) were chosen by the test females significantly (P<0.05) rather than males reared with females in different ratios. The phenotypic analysis revealed that males in 1:1, 1: 3 and 5: 1 treatments were significantly larger (P<0.05) than males in 3 treatment. The analysis also showed that males in the 5 treatment had significantly longer 2nd chelate-leg (P<0.05) than males in the 3: 1 treatment. This study would provide some baseline data for this carnivorous crustacean, which can be successfully cultured by maintaining the sex ratio.
- Subjects
SHRIMPS; MACROBRACHIUM rosenbergii; FEMALES; FRESH water; PHENOTYPES; MALES; SEX ratio
- Publication
Egyptian Journal of Aquatic Biology & Fisheries, 2023, Vol 27, Issue 3, p295
- ISSN
1110-6131
- Publication type
Article
- DOI
10.21608/ejabf.2023.301136