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http://krishi.icar.gov.in/jspui/handle/123456789/16042| Title: | Food and feeding ecology of the non-native Nile tilapia, Oreochromis niloticus (Linnaeus, 1758) in the river Yamuna, India |
| Other Titles: | Not Available |
| Authors: | Alam A. Chadha NK. Joshi KD. Chakraborty SK. Banerjee Sawant P. Kumar T. Srivastava K. Das SCS. Sharma A.P. |
| ICAR Data Use Licennce: | http://krishi.icar.gov.in/PDF/ICAR_Data_Use_Licence.pdf |
| Author's Affiliated institute: | ICAR::Central Inland Fisheries Research Institute ICAR::Central Institute of Fisheries Education ICAR::Research Complex for Eastern Region |
| Published/ Complete Date: | 2014-04 |
| Project Code: | Not Available |
| Keywords: | Invasive, Nile Telapia, Gastrosomatic Index, Condition factor, Food, Yamuna |
| Publisher: | Springer |
| Citation: | Alam A., Chadha NK., Joshi KD., Chakraborty SK., Banerjee Sawant P., Kumar T., Srivastava K., Das SCS., and Sharma A.P. (2014). Food and feeding ecology of the non-native Nile tilapia, Oreochromis niloticus (Linnaeus, 1758) in the river Yamuna, India. Proc. Natl. Acad. Sci., India Sect. B Biol. Sci. DOI 10.1007/s40011-014-0338-3. |
| Series/Report no.: | Not Available; |
| Abstract/Description: | Nile tilapia Oreochromis niloticus is the dominant invasive species of the river Yamuna. Gut analysis showed that the major of the food items ingested consisted of Chlorophyceae, Myxophyceae, Bacillariophyceae and detritus. Among the diatoms - Synedra spp. (80.75%), Melsira spp. (73.5%), Cyclotella spp. (73%), the green algae - Ankistrodesmus spp. (71.00%), Coelastrum spp. (61.5%), Scenedesmus app. (71.00%), Tribonema spp. (49.75%) and Pediastrum spp. (58.5%) and among the blue algae, Oscillatoria spp. (70.5%), Anacystis spp. (61.5%) and Phormidium spp. (46.5%) showed high frequency of occurrence. The Gastrosomatic Index in males and females ranged from 0.23 to 0.93 and 0.25 to 1.1 respectively with no significant difference between males and females through the year (t test, p>0.05). In addition to this, higher percentage of males and females showing low feeding intensity during all the months except in January indicated the species to be the poor feeder. However, the condition factor >1 suggested the species to be in good condition throughout the year in both males and females. Dominancy of detritus and pollution indicator genera Synedra spp., Anacyctis spp., Ankistrodesmus spp., Melosira spp., Nitzchia spp., Oscillatoria spp., Phormidium spp. and Scenedesmus spp., suggested Nile tilapia to be the cleaner of the polluted river Yamuna. |
| Description: | Not Available |
| ISSN: | Not Available |
| Type(s) of content: | Research Paper |
| Sponsors: | Not Available |
| Language: | English |
| Name of Journal: | Natl. Acad. Sci., India Sect. B Biol. Sci. |
| Volume No.: | 85(1) |
| Page Number: | Not Available |
| Name of the Division/Regional Station: | Not Available |
| Source, DOI or any other URL: | DOI 10.1007/s40011-014-0338-3 |
| URI: | http://krishi.icar.gov.in/jspui/handle/123456789/16042 |
| Appears in Collections: | FS-CIFRI-Publication |
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