Seasonal dynamics of stomach contents, trophic level, length-weight relationship and condition factor of Mystus bleekeri (Day, 1877)
The Asian catfish Mystus bleekeri is a popular food fish along with favored as an ornamental fish in Bangladesh. Till now detailed report on stomach contents, trophic level, length-weight relationship and condition factor of this fish species in the agro-climatic context of Bangladesh is lacking...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Penerbit Universiti Kebangsaan Malaysia
2021
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| Online Access: | http://journalarticle.ukm.my/17165/ http://journalarticle.ukm.my/17165/1/3.pdf |
| _version_ | 1848814243476930560 |
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| author | Mazumder, Sabuj Kanti Kunda, Mrityunjoy Iqbal, Mohammed Mahbub Basak, Lipi Rani Simon Kumar Das, |
| author_facet | Mazumder, Sabuj Kanti Kunda, Mrityunjoy Iqbal, Mohammed Mahbub Basak, Lipi Rani Simon Kumar Das, |
| author_sort | Mazumder, Sabuj Kanti |
| building | UKM Institutional Repository |
| collection | Online Access |
| description | The Asian catfish Mystus bleekeri is a popular food fish along with favored as an ornamental fish in Bangladesh.
Till now detailed report on stomach contents, trophic level, length-weight relationship and condition factor of this fish
species in the agro-climatic context of Bangladesh is lacking. Hence, the aims of this study were to describe the stomach
content, trophic level, length-weight relationship (LWR) and condition factors of Mystus bleekeri collected from Dekhar
Haor, Sylhet, Bangladesh from July 2017 to June 2018. A total of 600 specimens ranging from 6.9-24.6 cm total length
(TL) and 5.7-72.4 g body weight (BW) was analyzed in this study. Stomach content analysis showed that the fish fed
mostly on Mollusca with a frequency of occurrence (fo
: 25.36%) and worms (fo
: 21.68%), followed by plant matters (fo
:
3.32%), Cladocerana (fo
: 1.18%), Copepoda (fo
: 0.95%), and Teleostei (fo
: 0.36%). The estimated mean trophic level
(TROPH) ranged from 2.35±0.13 in December to 3.02±0.23 in August, indicating that they are opportunistic feeder.
The LWR analysis showed negative allometric growth (b<3) throughout the year. The values of the exponent b in the
LWR (W=aLb
) vary between 1.474 and 2.490. The mean K value was significantly higher in October indicating the
heavier weight and better condition of the fish (P<0.05). The data obtained from this study would be useful to introduce
sustainable management of Mystus bleekeri not only in Dekhar Haor but also in other inland waters of Bangladesh. |
| first_indexed | 2025-11-15T00:30:59Z |
| format | Article |
| id | oai:generic.eprints.org:17165 |
| institution | Universiti Kebangasaan Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T00:30:59Z |
| publishDate | 2021 |
| publisher | Penerbit Universiti Kebangsaan Malaysia |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | oai:generic.eprints.org:171652021-07-26T02:31:10Z http://journalarticle.ukm.my/17165/ Seasonal dynamics of stomach contents, trophic level, length-weight relationship and condition factor of Mystus bleekeri (Day, 1877) Mazumder, Sabuj Kanti Kunda, Mrityunjoy Iqbal, Mohammed Mahbub Basak, Lipi Rani Simon Kumar Das, The Asian catfish Mystus bleekeri is a popular food fish along with favored as an ornamental fish in Bangladesh. Till now detailed report on stomach contents, trophic level, length-weight relationship and condition factor of this fish species in the agro-climatic context of Bangladesh is lacking. Hence, the aims of this study were to describe the stomach content, trophic level, length-weight relationship (LWR) and condition factors of Mystus bleekeri collected from Dekhar Haor, Sylhet, Bangladesh from July 2017 to June 2018. A total of 600 specimens ranging from 6.9-24.6 cm total length (TL) and 5.7-72.4 g body weight (BW) was analyzed in this study. Stomach content analysis showed that the fish fed mostly on Mollusca with a frequency of occurrence (fo : 25.36%) and worms (fo : 21.68%), followed by plant matters (fo : 3.32%), Cladocerana (fo : 1.18%), Copepoda (fo : 0.95%), and Teleostei (fo : 0.36%). The estimated mean trophic level (TROPH) ranged from 2.35±0.13 in December to 3.02±0.23 in August, indicating that they are opportunistic feeder. The LWR analysis showed negative allometric growth (b<3) throughout the year. The values of the exponent b in the LWR (W=aLb ) vary between 1.474 and 2.490. The mean K value was significantly higher in October indicating the heavier weight and better condition of the fish (P<0.05). The data obtained from this study would be useful to introduce sustainable management of Mystus bleekeri not only in Dekhar Haor but also in other inland waters of Bangladesh. Penerbit Universiti Kebangsaan Malaysia 2021-04 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/17165/1/3.pdf Mazumder, Sabuj Kanti and Kunda, Mrityunjoy and Iqbal, Mohammed Mahbub and Basak, Lipi Rani and Simon Kumar Das, (2021) Seasonal dynamics of stomach contents, trophic level, length-weight relationship and condition factor of Mystus bleekeri (Day, 1877). Sains Malaysiana, 50 (4). pp. 907-918. ISSN 0126-6039 https://www.ukm.my/jsm/malay_journals/jilid50bil4_2021/KandunganJilid50Bil4_2021.html |
| spellingShingle | Mazumder, Sabuj Kanti Kunda, Mrityunjoy Iqbal, Mohammed Mahbub Basak, Lipi Rani Simon Kumar Das, Seasonal dynamics of stomach contents, trophic level, length-weight relationship and condition factor of Mystus bleekeri (Day, 1877) |
| title | Seasonal dynamics of stomach contents, trophic level, length-weight relationship and condition factor of Mystus bleekeri (Day, 1877) |
| title_full | Seasonal dynamics of stomach contents, trophic level, length-weight relationship and condition factor of Mystus bleekeri (Day, 1877) |
| title_fullStr | Seasonal dynamics of stomach contents, trophic level, length-weight relationship and condition factor of Mystus bleekeri (Day, 1877) |
| title_full_unstemmed | Seasonal dynamics of stomach contents, trophic level, length-weight relationship and condition factor of Mystus bleekeri (Day, 1877) |
| title_short | Seasonal dynamics of stomach contents, trophic level, length-weight relationship and condition factor of Mystus bleekeri (Day, 1877) |
| title_sort | seasonal dynamics of stomach contents, trophic level, length-weight relationship and condition factor of mystus bleekeri (day, 1877) |
| url | http://journalarticle.ukm.my/17165/ http://journalarticle.ukm.my/17165/ http://journalarticle.ukm.my/17165/1/3.pdf |