Characterizing trophic interactions of a catfish dominated tropical reservoir ecosystem to assess the effects of management practices.
Not Available The trophic interactions and energy flows of a tropical reservoir was carried out to assess the effect of stocking carps as a management strategy on the food web of the reservoir ecosystem using mass balance modelling. The model structured around 13 ecological groups which included the...
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2014
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ftindiancar:oai:krishi.icar.gov.in:123456789/16346 2023-05-15T15:33:34+02:00 Characterizing trophic interactions of a catfish dominated tropical reservoir ecosystem to assess the effects of management practices. Not Available Panikkar P. Khan M.F. Desai V.R. Shrivastava N.P. and Sharma A.P. 2014-04-25 http://krishi.icar.gov.in/jspui/handle/123456789/16346 English eng Springer Science+Business Media Not Available; Panikkar P., Khan M.F., Desai V.R., Shrivastava N.P., and Sharma A.P. 2014. Characterizing trophic interactions of a catfish dominated tropical reservoir ecosystem to assess the effects of management practices. Environmental Biology of Fishes, 98 (1):237–247 DOI:10.1007/s10641-014-0255-6. Not Available http://krishi.icar.gov.in/jspui/handle/123456789/16346 Energy flow Modelling Ecotrophic efficiency Finns cycling index Reservoir ecosystem Research Paper 2014 ftindiancar https://doi.org/10.1007/s10641-014-0255-6 2022-03-19T18:22:41Z Not Available The trophic interactions and energy flows of a tropical reservoir was carried out to assess the effect of stocking carps as a management strategy on the food web of the reservoir ecosystem using mass balance modelling. The model structured around 13 ecological groups which included the most dominant catfishes Mystus spp. The trophic level of the reservoir varied between 3.63 and 1.0, with the largest values corresponding to aquatic birds, and the carnivorous fishes (other catfishes, Mystus spp and snake-heads) acting as top predators upon system resources at lower trophic levels. The ecotrophic efficiency was highest for the planktivorous fishes (major carps, minor carps and minnows) whereas low values were recorded for the most dominant fish group, the catfishes. The mixed trophic impact routine shows that the, Mystus spp. have a strong negative impact on minor carps and minnows but the other catfishes (Wallago attu and Ompok bimaculatus) have a slight positive impact on the major carps (the stocked fishes). The snakeheads (Channa marulius and Channa punctatus) exert negative impact on their preferred prey, major carps. The reservoir has a detritus based food chain, where almost all the biomass is concentrated in the first two trophic levels (the producers level and the herbivore/detritivore level), with rather low transfer efficiencies. The primary production/biomass ratio was 80.33. Finns Cycling Index was estimated at 1.99 % of the total system throughput. All the attributes of ecosystem maturity and stability explicitly indicate that the ecosystem is in developmental phase Not Available Report Attu KRISHI Publication and Data Inventory Repository (Knowledge based Resources Information Systems Hub for Innovations in Agriculture - Indian Council of Agricultural Research, ICAR) Minnows ENVELOPE(-65.359,-65.359,-66.027,-66.027) Environmental Biology of Fishes 98 1 237 247 |
institution |
Open Polar |
collection |
KRISHI Publication and Data Inventory Repository (Knowledge based Resources Information Systems Hub for Innovations in Agriculture - Indian Council of Agricultural Research, ICAR) |
op_collection_id |
ftindiancar |
language |
English |
topic |
Energy flow Modelling Ecotrophic efficiency Finns cycling index Reservoir ecosystem |
spellingShingle |
Energy flow Modelling Ecotrophic efficiency Finns cycling index Reservoir ecosystem Panikkar P. Khan M.F. Desai V.R. Shrivastava N.P. and Sharma A.P. Characterizing trophic interactions of a catfish dominated tropical reservoir ecosystem to assess the effects of management practices. |
topic_facet |
Energy flow Modelling Ecotrophic efficiency Finns cycling index Reservoir ecosystem |
description |
Not Available The trophic interactions and energy flows of a tropical reservoir was carried out to assess the effect of stocking carps as a management strategy on the food web of the reservoir ecosystem using mass balance modelling. The model structured around 13 ecological groups which included the most dominant catfishes Mystus spp. The trophic level of the reservoir varied between 3.63 and 1.0, with the largest values corresponding to aquatic birds, and the carnivorous fishes (other catfishes, Mystus spp and snake-heads) acting as top predators upon system resources at lower trophic levels. The ecotrophic efficiency was highest for the planktivorous fishes (major carps, minor carps and minnows) whereas low values were recorded for the most dominant fish group, the catfishes. The mixed trophic impact routine shows that the, Mystus spp. have a strong negative impact on minor carps and minnows but the other catfishes (Wallago attu and Ompok bimaculatus) have a slight positive impact on the major carps (the stocked fishes). The snakeheads (Channa marulius and Channa punctatus) exert negative impact on their preferred prey, major carps. The reservoir has a detritus based food chain, where almost all the biomass is concentrated in the first two trophic levels (the producers level and the herbivore/detritivore level), with rather low transfer efficiencies. The primary production/biomass ratio was 80.33. Finns Cycling Index was estimated at 1.99 % of the total system throughput. All the attributes of ecosystem maturity and stability explicitly indicate that the ecosystem is in developmental phase Not Available |
format |
Report |
author |
Panikkar P. Khan M.F. Desai V.R. Shrivastava N.P. and Sharma A.P. |
author_facet |
Panikkar P. Khan M.F. Desai V.R. Shrivastava N.P. and Sharma A.P. |
author_sort |
Panikkar P. |
title |
Characterizing trophic interactions of a catfish dominated tropical reservoir ecosystem to assess the effects of management practices. |
title_short |
Characterizing trophic interactions of a catfish dominated tropical reservoir ecosystem to assess the effects of management practices. |
title_full |
Characterizing trophic interactions of a catfish dominated tropical reservoir ecosystem to assess the effects of management practices. |
title_fullStr |
Characterizing trophic interactions of a catfish dominated tropical reservoir ecosystem to assess the effects of management practices. |
title_full_unstemmed |
Characterizing trophic interactions of a catfish dominated tropical reservoir ecosystem to assess the effects of management practices. |
title_sort |
characterizing trophic interactions of a catfish dominated tropical reservoir ecosystem to assess the effects of management practices. |
publisher |
Springer Science+Business Media |
publishDate |
2014 |
url |
http://krishi.icar.gov.in/jspui/handle/123456789/16346 |
long_lat |
ENVELOPE(-65.359,-65.359,-66.027,-66.027) |
geographic |
Minnows |
geographic_facet |
Minnows |
genre |
Attu |
genre_facet |
Attu |
op_relation |
Not Available; Panikkar P., Khan M.F., Desai V.R., Shrivastava N.P., and Sharma A.P. 2014. Characterizing trophic interactions of a catfish dominated tropical reservoir ecosystem to assess the effects of management practices. Environmental Biology of Fishes, 98 (1):237–247 DOI:10.1007/s10641-014-0255-6. Not Available http://krishi.icar.gov.in/jspui/handle/123456789/16346 |
op_doi |
https://doi.org/10.1007/s10641-014-0255-6 |
container_title |
Environmental Biology of Fishes |
container_volume |
98 |
container_issue |
1 |
container_start_page |
237 |
op_container_end_page |
247 |
_version_ |
1766364100750737408 |