Diet breadth of fish communities in Vamanapuram river, Kerala, South India

An understanding of the feeding habits of fish species in natural environment gives clues for selecting the species for aquaculture. It helps in formulating artificial feeds for culturing species under artificial conditions for small scale or large scale aquaculture. The main objective...

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Autores principales:	S. David Kingston, Koos Vijverber, P. Natarajan, Tigist Ashagre Amare
Formato:	article
Lenguaje:	EN
Publicado:	Hawassa University 2021
Materias:	feeding habit; vamanapuram river; fishes Veterinary medicine SF600-1100 Science Q
Acceso en línea:	https://doaj.org/article/d5faeb2628dd46f58d4a9a61aadf6428
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spelling	oai:doaj.org-article:d5faeb2628dd46f58d4a9a61aadf64282021-12-02T17:46:23ZDiet breadth of fish communities in Vamanapuram river, Kerala, South India2789-360X2789-3618https://doaj.org/article/d5faeb2628dd46f58d4a9a61aadf64282021-07-01T00:00:00Zhttps://journals.hu.edu.et/hu-journals/index.php/eajbcs/article/view/85/64https://doaj.org/toc/2789-360Xhttps://doaj.org/toc/2789-3618An understanding of the feeding habits of fish species in natural environment gives clues for selecting the species for aquaculture. It helps in formulating artificial feeds for culturing species under artificial conditions for small scale or large scale aquaculture. The main objective of the present study was to find the food preferences of fish species in different ecological niches such as low land streams, riverine and estuary. Stomachs were cut, food items removed and stored in 4% formalin. Diet breadth was calculated as per the standard methods widely recommended. The diet breadth calculated for the fish assemblages in Vamanapuram River showed that Puntius amphibius has the highest breadth of 6.64. The surface feeding fishes had low diet breadth which ranged from 1.13-1.83. Their main food has been observed to be terrestrial insects. The generalists like Rasbora daniconius and Puntius filamentosus have diet breadth of 3.27 and 4.15, respectively. Whereas fish species found in estuarine habitats showed diet breadth range from 1.00 to 2.82. The fishes present in the upper regions of the river habitat were observed to have low diet breadth than lowland streams. In general, high diet breadth values were observed during February to May. The breadth of Barilius bakeri showed minor variations among the three seasons (1.00 to 1.20). Based on the diet breadth, the majority of the fishes in Vamanapuram River generalistsS. David KingstonKoos VijverberP. NatarajanTigist Ashagre AmareHawassa Universityarticlefeeding habit; vamanapuram river; fishesVeterinary medicineSF600-1100ScienceQENEast African Journal of Biophysical and Computational Sciences, Vol 2, Iss 1, Pp 27-33 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	feeding habit; vamanapuram river; fishes Veterinary medicine SF600-1100 Science Q
spellingShingle	feeding habit; vamanapuram river; fishes Veterinary medicine SF600-1100 Science Q S. David Kingston Koos Vijverber P. Natarajan Tigist Ashagre Amare Diet breadth of fish communities in Vamanapuram river, Kerala, South India
description	An understanding of the feeding habits of fish species in natural environment gives clues for selecting the species for aquaculture. It helps in formulating artificial feeds for culturing species under artificial conditions for small scale or large scale aquaculture. The main objective of the present study was to find the food preferences of fish species in different ecological niches such as low land streams, riverine and estuary. Stomachs were cut, food items removed and stored in 4% formalin. Diet breadth was calculated as per the standard methods widely recommended. The diet breadth calculated for the fish assemblages in Vamanapuram River showed that Puntius amphibius has the highest breadth of 6.64. The surface feeding fishes had low diet breadth which ranged from 1.13-1.83. Their main food has been observed to be terrestrial insects. The generalists like Rasbora daniconius and Puntius filamentosus have diet breadth of 3.27 and 4.15, respectively. Whereas fish species found in estuarine habitats showed diet breadth range from 1.00 to 2.82. The fishes present in the upper regions of the river habitat were observed to have low diet breadth than lowland streams. In general, high diet breadth values were observed during February to May. The breadth of Barilius bakeri showed minor variations among the three seasons (1.00 to 1.20). Based on the diet breadth, the majority of the fishes in Vamanapuram River generalists
format	article
author	S. David Kingston Koos Vijverber P. Natarajan Tigist Ashagre Amare
author_facet	S. David Kingston Koos Vijverber P. Natarajan Tigist Ashagre Amare
author_sort	S. David Kingston
title	Diet breadth of fish communities in Vamanapuram river, Kerala, South India
title_short	Diet breadth of fish communities in Vamanapuram river, Kerala, South India
title_full	Diet breadth of fish communities in Vamanapuram river, Kerala, South India
title_fullStr	Diet breadth of fish communities in Vamanapuram river, Kerala, South India
title_full_unstemmed	Diet breadth of fish communities in Vamanapuram river, Kerala, South India
title_sort	diet breadth of fish communities in vamanapuram river, kerala, south india
publisher	Hawassa University
publishDate	2021
url	https://doaj.org/article/d5faeb2628dd46f58d4a9a61aadf6428
work_keys_str_mv	AT sdavidkingston dietbreadthoffishcommunitiesinvamanapuramriverkeralasouthindia AT koosvijverber dietbreadthoffishcommunitiesinvamanapuramriverkeralasouthindia AT pnatarajan dietbreadthoffishcommunitiesinvamanapuramriverkeralasouthindia AT tigistashagreamare dietbreadthoffishcommunitiesinvamanapuramriverkeralasouthindia
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Diet breadth of fish communities in Vamanapuram river, Kerala, South India

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