Ontogenetic shift in dietary preference and low dietary overlap in rohu (Labeo rohita) and common carp (Cyprinus carpio)in semi-intensive polyculture ponds

In order to investigate ontogenetic changes in diet and diet overlap between rohu (Labeo rohita) and common carp (Cyprinus carpio) in polyculture ponds, food preferences of different size classes of these fishes were quantified. Rohu diet consisted of both phytoplankton and zooplankton, and the...

Full description

Bibliographic Details
Main Authors:	Rahman, Mohammad Mustafizur, Hossain, Md Yeamin, Jo, Qtae, Kim , Su-Kyoung, Ohtomi, Jun, Meyer, Carl G
Format:	Article
Language:	English
Published:	Springer Japan 2009
Subjects:	SH Aquaculture. Fisheries. Angling
Online Access:	http://irep.iium.edu.my/3201/ http://irep.iium.edu.my/3201/ http://irep.iium.edu.my/3201/ http://irep.iium.edu.my/3201/1/Ontogenetic_food_habit_and_low_dietary_overlap.pdf

id	iium-3201
recordtype	eprints
spelling	iium-32012013-02-15T02:46:29Z http://irep.iium.edu.my/3201/ Ontogenetic shift in dietary preference and low dietary overlap in rohu (Labeo rohita) and common carp (Cyprinus carpio)in semi-intensive polyculture ponds Rahman, Mohammad Mustafizur Hossain, Md Yeamin Jo, Qtae Kim , Su-Kyoung Ohtomi, Jun Meyer, Carl G SH Aquaculture. Fisheries. Angling In order to investigate ontogenetic changes in diet and diet overlap between rohu (Labeo rohita) and common carp (Cyprinus carpio) in polyculture ponds, food preferences of different size classes of these fishes were quantified. Rohu diet consisted of both phytoplankton and zooplankton, and there was a distinct ontogenetic shift in the relative importance of these food items. Zooplankton was the dominant food for rohu up to 20.6 cm total length (TL) and then gradually decreased in importance as fish grew. Phytoplankton was initially a minor component of rohu diet but gradually increased in importance and became the dominant food for rohu at 24.2 cm TL. Phytoplankton biovolume in rohu guts was positively correlated with fish size (TL). Chesson’s a indicated that rohu of all sizes preferentially selected Cladocera and avoided Cyanophyceae and Euglenophyceae. Young rohu initially preferred Rotifera and Copepoda but gradually switched to Bacillariophyceae and Chlorophyceae. Common carp diet consisted of phytoplankton, zooplankton,and benthic macroinvertebrates, but was dominated by benthic macroinvertebrates (63–92% of total diet). As common carp grew, the proportion of zooplankton ingested decreased and the proportion of benthic macroinvertebrates increased. Benthic macroinvertebrate biovolume in common carp guts was positively correlated with fish size. Common carp of up to 15.4 cm TL preferentially selected zooplankton, but common carp larger than 18.9 cm TL avoided this food item. Common carp of all sizes avoided phytoplankton. A low dietary overlap was found between rohu and common carp (Schoener overlap index: 0.08–0.35), probably due to ingestion of smaller quantities of zooplankton by the latter. Dietary overlap also decreased with increasing rohu and common carp size because of divergent ontogenetic shifts in dietary preferences of the two species. Springer Japan 2009 Article PeerReviewed application/pdf en http://irep.iium.edu.my/3201/1/Ontogenetic_food_habit_and_low_dietary_overlap.pdf Rahman, Mohammad Mustafizur and Hossain, Md Yeamin and Jo, Qtae and Kim , Su-Kyoung and Ohtomi, Jun and Meyer, Carl G (2009) Ontogenetic shift in dietary preference and low dietary overlap in rohu (Labeo rohita) and common carp (Cyprinus carpio)in semi-intensive polyculture ponds. Ichthyological Research, 56 (1). pp. 28-36. ISSN 1341-8998 (P), 1616-3915 (O) http://link.springer.com/article/10.1007%2Fs10228-008-0062-1# 10.1007/s10228-008-0062-1
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	SH Aquaculture. Fisheries. Angling
spellingShingle	SH Aquaculture. Fisheries. Angling Rahman, Mohammad Mustafizur Hossain, Md Yeamin Jo, Qtae Kim , Su-Kyoung Ohtomi, Jun Meyer, Carl G Ontogenetic shift in dietary preference and low dietary overlap in rohu (Labeo rohita) and common carp (Cyprinus carpio)in semi-intensive polyculture ponds
description	In order to investigate ontogenetic changes in diet and diet overlap between rohu (Labeo rohita) and common carp (Cyprinus carpio) in polyculture ponds, food preferences of different size classes of these fishes were quantified. Rohu diet consisted of both phytoplankton and zooplankton, and there was a distinct ontogenetic shift in the relative importance of these food items. Zooplankton was the dominant food for rohu up to 20.6 cm total length (TL) and then gradually decreased in importance as fish grew. Phytoplankton was initially a minor component of rohu diet but gradually increased in importance and became the dominant food for rohu at 24.2 cm TL. Phytoplankton biovolume in rohu guts was positively correlated with fish size (TL). Chesson’s a indicated that rohu of all sizes preferentially selected Cladocera and avoided Cyanophyceae and Euglenophyceae. Young rohu initially preferred Rotifera and Copepoda but gradually switched to Bacillariophyceae and Chlorophyceae. Common carp diet consisted of phytoplankton, zooplankton,and benthic macroinvertebrates, but was dominated by benthic macroinvertebrates (63–92% of total diet). As common carp grew, the proportion of zooplankton ingested decreased and the proportion of benthic macroinvertebrates increased. Benthic macroinvertebrate biovolume in common carp guts was positively correlated with fish size. Common carp of up to 15.4 cm TL preferentially selected zooplankton, but common carp larger than 18.9 cm TL avoided this food item. Common carp of all sizes avoided phytoplankton. A low dietary overlap was found between rohu and common carp (Schoener overlap index: 0.08–0.35), probably due to ingestion of smaller quantities of zooplankton by the latter. Dietary overlap also decreased with increasing rohu and common carp size because of divergent ontogenetic shifts in dietary preferences of the two species.
format	Article
author	Rahman, Mohammad Mustafizur Hossain, Md Yeamin Jo, Qtae Kim , Su-Kyoung Ohtomi, Jun Meyer, Carl G
author_facet	Rahman, Mohammad Mustafizur Hossain, Md Yeamin Jo, Qtae Kim , Su-Kyoung Ohtomi, Jun Meyer, Carl G
author_sort	Rahman, Mohammad Mustafizur
title	Ontogenetic shift in dietary preference and low dietary overlap in rohu (Labeo rohita) and common carp (Cyprinus carpio)in semi-intensive polyculture ponds
title_short	Ontogenetic shift in dietary preference and low dietary overlap in rohu (Labeo rohita) and common carp (Cyprinus carpio)in semi-intensive polyculture ponds
title_full	Ontogenetic shift in dietary preference and low dietary overlap in rohu (Labeo rohita) and common carp (Cyprinus carpio)in semi-intensive polyculture ponds
title_fullStr	Ontogenetic shift in dietary preference and low dietary overlap in rohu (Labeo rohita) and common carp (Cyprinus carpio)in semi-intensive polyculture ponds
title_full_unstemmed	Ontogenetic shift in dietary preference and low dietary overlap in rohu (Labeo rohita) and common carp (Cyprinus carpio)in semi-intensive polyculture ponds
title_sort	ontogenetic shift in dietary preference and low dietary overlap in rohu (labeo rohita) and common carp (cyprinus carpio)in semi-intensive polyculture ponds
publisher	Springer Japan
publishDate	2009
url	http://irep.iium.edu.my/3201/ http://irep.iium.edu.my/3201/ http://irep.iium.edu.my/3201/ http://irep.iium.edu.my/3201/1/Ontogenetic_food_habit_and_low_dietary_overlap.pdf
first_indexed	2023-09-18T20:10:55Z
last_indexed	2023-09-18T20:10:55Z
_version_	1777407471790325760

Ontogenetic shift in dietary preference and low dietary overlap in rohu (Labeo rohita) and common carp (Cyprinus carpio)in semi-intensive polyculture ponds

Similar Items