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Feeding ecology of deep-water Arabian red shrimp, Aristeus alcocki Ramadan, 1938 (Decapoda: Penaeoidea: Aristeidae) from southwestern India (Arabian Sea)

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Relation https://eprints.cmfri.org.in/14724/
https://www.sciencedirect.com/science/article/pii/S2352485520306289?via%3Dihub
https://doi.org/10.1016/j.rsma.2020.101500
 
Title Feeding ecology of deep-water Arabian red shrimp, Aristeus alcocki
Ramadan, 1938 (Decapoda: Penaeoidea: Aristeidae) from
southwestern India (Arabian Sea)
 
Creator Purushothaman, P
Chakraborty, Rekha D
Kuberan, G
Maheswarudu, G
 
Subject Food and Feeding
Crustacean Fisheries
 
Description The Arabian red shrimp, Aristeus alcocki Ramadan, 1938 constitutes a commercially important decapod
in the southern coast of India with an annual average catch of greater than 2,122 tons. The diet
contents in connection to the sex, maturity, season and size group of this species were investigated
using an aggregate number of 634 samples collected from the south-west coast of India. The diet
components of A. alcocki were deduced to consist of 71 prey categories, which belonged to smaller
crustaceans (e.g. amphipods, decapods, euphausiids), foraminiferans (Rotaliida, and Miliolida), molluscs
(bivalves, gastropods, and cephalopods), polychaetes, and bryozoans. Feeding pattern of the studied
species was examined using Amundsen graphical method, which recognized that A. alcocki exhibited
different degrees of generalization and specialization with various preys. The marginal seasonal
variation related to major prey items could be attributed to the environmental fluctuations of the deep
waters and other biological processes. Considering stomach fullness and food quality, the females of
A. alcocki were found to be the effective predators than males. The parameters, such as population
characteristics, somatic and gonadal development might be attributed to this variation. Notably, the
larger-sized animal have good swimming ability, which could help in an effective selection of prey,
while the smaller individuals depend on the epibenthic organisms for their food. This study comprises
the first report on the feeding biology of A. alcocki in the Arabian Sea.
 
Publisher Elsevier B.V.
 
Date 2020
 
Type Article
PeerReviewed
 
Format text
 
Language en
 
Identifier https://eprints.cmfri.org.in/14724/1/Regional%20Studies%20in%20Marine%20Science_2020_Rekha%20Devi%20Chakraborty.pdf
Purushothaman, P and Chakraborty, Rekha D and Kuberan, G and Maheswarudu, G (2020) Feeding ecology of deep-water Arabian red shrimp, Aristeus alcocki Ramadan, 1938 (Decapoda: Penaeoidea: Aristeidae) from southwestern India (Arabian Sea). Regional Studies in Marine Science, 40. pp. 1-14.