Stomach Repletion Rhythms of the Caridean Shrimps, Macrobrachium americanum and M. tenellum (Crustacea: Decapoda) in a Caged-Pond System

The stomach repletion rhythms of the caridean shrimp M. americanum and M. tenellum in caged-pond system were studied. A total of 120 caridean shrimp (60 M. americanum and 60 M. tenellum) had their stomach repletion analysis. Samples were taken four-hly over a 24 h cycle. In general it was found that...

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Bibliographic Details
Published in:Pakistan journal of zoology 2017-06, Vol.49 (3), p.973-977
Main Authors: Lopez-Uriostegui, Fermin, Ponce-Palafox, Jesus T, Lango-Reynoso, Fabiola, Castaneda-Chavez, Maria del Refugio, Arenas-Fuentes, Virgilio Eugenio, Vega-Villasante, Fernando
Format: Article
Language:English
Subjects:
Aquaculture
Crustacea
Crustaceans
Decapoda
Diet
Estuaries
Feeds
Fish
Fisheries
Macrobrachium americanum
Macrobrachium tenellum
Observations
Organisms
Palaemonidae
Physiological aspects
Ponds
Shrimps
Stomach
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Summary:The stomach repletion rhythms of the caridean shrimp M. americanum and M. tenellum in caged-pond system were studied. A total of 120 caridean shrimp (60 M. americanum and 60 M. tenellum) had their stomach repletion analysis. Samples were taken four-hly over a 24 h cycle. In general it was found that stomach repletion index showed both species feed 24 h, but forage activity differs in intensity in the two species. In M. tenellum repletion index was greatest during the day and M. americanum in the night.
ISSN:0030-9923
DOI:10.17582/journal.pjz/2017.49.3.973.977