Publication Date:
2021-07-14
Description:
The food habits, sex ratio and differences of three freshwater prawns ? Macrobrachium vollenhovenii, M. macrobrachion and M. felicinum from Nun River, Niger Delta were studied. It was found that although the prawns had an omnivorous diet feeding on a wide range of organisms including plants, detritus, insect parts, phytoplankton and zooplankton the food habits indicate a tendency towards a plant-based (herbivorous) diet. The adult prawns exhibit sexual dimorphism with males being larger than females; however the males were fewer in number than the females with mean ratios of 1:2.79, 1:1.58 and 1:9.12 for M. vollenhovenii, M. macrobrachion and M. felicinum. Sexual dimorphism exists in the species and brood-stock are available in the Nun River system of the Niger Delta region.
Description:
Includes:- 3 tables.;12 refs.
Keywords:
Ecology
;
Macrobrachium vollenhovenii
;
Macrobrachium macrobrachium
;
Macrobrachium felicinum
;
Nigeria
;
Nun
;
R.
;
freshwater environment
;
Feeding behaviour
;
Feeding experiments
;
Aquaculture
;
Sexual dimorphism
;
Prawn culture
Repository Name:
AquaDocs
Type:
conference_item
,
TRUE
Format:
application/pdf
Format:
application/pdf
Format:
290-294
