Mahesh, V and Ambarish, Gop P and Nair, Rekha J (2018) Stomach Content Analysis Techniques in Fishes In: ICAR Sponsored Winter School on Recent Advances in Fishery Biology Techniques for Biodiversity Evaluation and Conservation, 1-21 December 2018, Kochi. [Teaching Resource]
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13-Winter School on Recent Advances in Fishery Biology Techniques for Biodiversity Evaluation and Conservation_2018_Mahesh V.pdf Download (348kB) | Preview |
Abstract
In Ichthyology, fish ecology & fisheries resource management, the information on diet & food habits are valuable in the decision-making process related to natural resources (Kido, 1996). Fish gut content analysis provides an important insight into feeding patterns & quantitative assessment of feeding habits is an important aspect of fisheries management. Fish diet represents an integration of many important ecological components that includes behaviour, condition, habitat use, energy intake & inter & intra-specific interactions, etc. A valid description of fish diets & feeding habits also provides the basis for understanding trophic interactions in aquatic food webs. Conceptually, trophic relations of fishes begin with the food & feeding habits & gut content analysis can be used to evaluate the habitat preferences, prey selection, effects of ontogeny & developing conservation strategies (Chipps & Garvey 2007). A food habit study might be conducted to investigate the most frequently consumed prey or to determine the relative importance of different food types to fish nutrition & to quantify the ingestion rate of individual food types. All such questions demands information on fish diets & requires different approaches in how one collects & analyzes data. In summary, gut content analysis is used in the understanding of many aspects of fish ecology on individual, population & ecosystem levels. It helps us to study & elucidate specific problems of interactions, evolution, speciation, invasions & fishery management nature protection. As a result, stomach content studies could be incorporated into a variety of different research objectives. Consequently, the study of the gut content is not only way to know the diet but also superior source of information on many aspects of fish biology & ecology.
| Item Type: | Teaching Resource |
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| Subjects: | Fishery Biology |
| Divisions: | CMFRI-Kochi > Marine Capture > Demersal Fisheries Division Subject Area > CMFRI > CMFRI-Kochi > Marine Capture > Demersal Fisheries Division CMFRI-Kochi > Marine Capture > Demersal Fisheries Division Subject Area > CMFRI-Kochi > Marine Capture > Demersal Fisheries Division |
| Depositing User: | Arun Surendran |
| Date Deposited: | 04 Jan 2019 06:57 |
| Last Modified: | 15 Feb 2019 04:55 |
| URI: | http://eprints.cmfri.org.in/id/eprint/13315 |
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