Mouth development of Malaysian river catfish, Mystus nemurus (C&V) larvae
Ontogenetic morphological development for the mouth of Malaysian river cat fish Mystus nemerus larvae from hatching to 21 days post-hatch (dph) was studied to facilitate and determine suitable food and food particle size for the growing larvae. The eggs began to hatch 2 days after fertilization (da...
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| Format: | Article |
| Language: | English |
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Marsland Press
2012
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| Online Access: | http://psasir.upm.edu.my/id/eprint/23832/ http://psasir.upm.edu.my/id/eprint/23832/1/Mouth%20development%20of%20Malaysian%20river%20catfish%2C%20Mystus%20nemurus%20%28C%26V%29%20larvae.pdf |
| _version_ | 1848844868480139264 |
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| author | El Hag, Ghada Ahmed Kamarudin, Mohd Salleh Saad, Che Roos Daud, Siti Khalijah |
| author_facet | El Hag, Ghada Ahmed Kamarudin, Mohd Salleh Saad, Che Roos Daud, Siti Khalijah |
| author_sort | El Hag, Ghada Ahmed |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Ontogenetic morphological development for the mouth of Malaysian river cat fish Mystus nemerus larvae from hatching to 21 days post-hatch (dph) was studied to facilitate and determine suitable food and food particle size for the growing larvae. The eggs began to hatch 2 days after fertilization (daf) and most of the larve hatched within 2-4 daf. The larval mouth opened at the end of the 1 dph and the commencement of external feeding began on 4 dph following the jaw movement. The barbels appeared on the upper jaw and lower jaw on 3 dph.Tow small barbels appeared around the olfactory pits by 5 dph. Free neuomasts were observed below the lower jaw on 7 dph and around the olfactory pits, eyes,and upper jaw operculum by 9 dph. Linear relationships between mouth size (at 45˚and 90˚ opening) and total length of fish were established. |
| first_indexed | 2025-11-15T08:37:46Z |
| format | Article |
| id | upm-23832 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T08:37:46Z |
| publishDate | 2012 |
| publisher | Marsland Press |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-238322017-09-25T14:01:57Z http://psasir.upm.edu.my/id/eprint/23832/ Mouth development of Malaysian river catfish, Mystus nemurus (C&V) larvae El Hag, Ghada Ahmed Kamarudin, Mohd Salleh Saad, Che Roos Daud, Siti Khalijah Ontogenetic morphological development for the mouth of Malaysian river cat fish Mystus nemerus larvae from hatching to 21 days post-hatch (dph) was studied to facilitate and determine suitable food and food particle size for the growing larvae. The eggs began to hatch 2 days after fertilization (daf) and most of the larve hatched within 2-4 daf. The larval mouth opened at the end of the 1 dph and the commencement of external feeding began on 4 dph following the jaw movement. The barbels appeared on the upper jaw and lower jaw on 3 dph.Tow small barbels appeared around the olfactory pits by 5 dph. Free neuomasts were observed below the lower jaw on 7 dph and around the olfactory pits, eyes,and upper jaw operculum by 9 dph. Linear relationships between mouth size (at 45˚and 90˚ opening) and total length of fish were established. Marsland Press 2012 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/23832/1/Mouth%20development%20of%20Malaysian%20river%20catfish%2C%20Mystus%20nemurus%20%28C%26V%29%20larvae.pdf El Hag, Ghada Ahmed and Kamarudin, Mohd Salleh and Saad, Che Roos and Daud, Siti Khalijah (2012) Mouth development of Malaysian river catfish, Mystus nemurus (C&V) larvae. Journal of American Science, 8 (1). pp. 271-276. ISSN 1545-1003; ESSN: 2375-7264 http://www.jofamericanscience.org/journals/am-sci/am0801/ 10.7537/marsjas080112.40 |
| spellingShingle | El Hag, Ghada Ahmed Kamarudin, Mohd Salleh Saad, Che Roos Daud, Siti Khalijah Mouth development of Malaysian river catfish, Mystus nemurus (C&V) larvae |
| title | Mouth development of Malaysian river catfish, Mystus nemurus (C&V) larvae |
| title_full | Mouth development of Malaysian river catfish, Mystus nemurus (C&V) larvae |
| title_fullStr | Mouth development of Malaysian river catfish, Mystus nemurus (C&V) larvae |
| title_full_unstemmed | Mouth development of Malaysian river catfish, Mystus nemurus (C&V) larvae |
| title_short | Mouth development of Malaysian river catfish, Mystus nemurus (C&V) larvae |
| title_sort | mouth development of malaysian river catfish, mystus nemurus (c&v) larvae |
| url | http://psasir.upm.edu.my/id/eprint/23832/ http://psasir.upm.edu.my/id/eprint/23832/ http://psasir.upm.edu.my/id/eprint/23832/ http://psasir.upm.edu.my/id/eprint/23832/1/Mouth%20development%20of%20Malaysian%20river%20catfish%2C%20Mystus%20nemurus%20%28C%26V%29%20larvae.pdf |