Development of sensory organs and changes of behaviour in larvae Amur catfish, Silurus asotus
The development of morphology, sensory organs, and behavioural changes in larvae of Amur catfish (Silurus asotus) were described from 0 h after hatching (hAH) to 20 days after hatching (dAH) reared at 26.7 ± 1.3 °C under controlled conditions. The newly hatched larvae (4.71 ± 0.87 mm) had eyes that...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-04-01
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| Series: | Aquaculture Reports |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2352513422000540 |
| _version_ | 1818356197910118400 |
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| author | Siti Umey Syahirah Mat Nawang Fui Fui Ching Shigeharu Senoo |
| author_facet | Siti Umey Syahirah Mat Nawang Fui Fui Ching Shigeharu Senoo |
| author_sort | Siti Umey Syahirah Mat Nawang |
| collection | DOAJ |
| description | The development of morphology, sensory organs, and behavioural changes in larvae of Amur catfish (Silurus asotus) were described from 0 h after hatching (hAH) to 20 days after hatching (dAH) reared at 26.7 ± 1.3 °C under controlled conditions. The newly hatched larvae (4.71 ± 0.87 mm) had eyes that were only outlined and unpigmented, no taste buds, and free neuromasts with a demersal swimming mode associated with negative phototaxis and immediate rheotaxis responses. At 12 hAH (5.57 ± 0.25 mm), larvae had pigmented eyes, exhibited initial vertical and horizontal swimming behaviour, and switched to positive phototaxis and positive immediate rheotaxis responses. At 30 hAH (7.01 ± 0.41 mm), larvae with well-developed sensory organs began feeding for the first time, and cannibalistic behaviour was noted for the first time at this stage. At 5 dAH (12.12 ± 0.68 mm), larvae had enlarged taste buds and free neuromasts associated with active swimming behaviour. At 12 dAH (20.22 ± 0.09 mm), the Amur catfish entered the juvenile stage, and at 20 dAH (34.10 ± 0.89 mm), a pair of mandibular barbels degenerated and the fish preferred to remain on the substrate. This study concludes that the development of Amur catfish larval morphology, sensory organs, and behaviour are interrelated and progressively developed as larvae age. |
| first_indexed | 2024-12-13T19:53:24Z |
| format | Article |
| id | doaj.art-5f4373e81fd3436085d89b20b5c359d7 |
| institution | Directory Open Access Journal |
| issn | 2352-5134 |
| language | English |
| last_indexed | 2024-12-13T19:53:24Z |
| publishDate | 2022-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Aquaculture Reports |
| spelling | doaj.art-5f4373e81fd3436085d89b20b5c359d72022-12-21T23:33:22ZengElsevierAquaculture Reports2352-51342022-04-0123101058Development of sensory organs and changes of behaviour in larvae Amur catfish, Silurus asotusSiti Umey Syahirah Mat Nawang0Fui Fui Ching1Shigeharu Senoo2Borneo Marine Research Institute, Universiti Malaysia Sabah, Jalan UMS, 88400 Kota Kinabalu, Sabah, MalaysiaBorneo Marine Research Institute, Universiti Malaysia Sabah, Jalan UMS, 88400 Kota Kinabalu, Sabah, Malaysia; Corresponding author.UMS-Kindai Aquaculture Development Centre, Kindai University, Shirahama, Wakayama 649–2211, JapanThe development of morphology, sensory organs, and behavioural changes in larvae of Amur catfish (Silurus asotus) were described from 0 h after hatching (hAH) to 20 days after hatching (dAH) reared at 26.7 ± 1.3 °C under controlled conditions. The newly hatched larvae (4.71 ± 0.87 mm) had eyes that were only outlined and unpigmented, no taste buds, and free neuromasts with a demersal swimming mode associated with negative phototaxis and immediate rheotaxis responses. At 12 hAH (5.57 ± 0.25 mm), larvae had pigmented eyes, exhibited initial vertical and horizontal swimming behaviour, and switched to positive phototaxis and positive immediate rheotaxis responses. At 30 hAH (7.01 ± 0.41 mm), larvae with well-developed sensory organs began feeding for the first time, and cannibalistic behaviour was noted for the first time at this stage. At 5 dAH (12.12 ± 0.68 mm), larvae had enlarged taste buds and free neuromasts associated with active swimming behaviour. At 12 dAH (20.22 ± 0.09 mm), the Amur catfish entered the juvenile stage, and at 20 dAH (34.10 ± 0.89 mm), a pair of mandibular barbels degenerated and the fish preferred to remain on the substrate. This study concludes that the development of Amur catfish larval morphology, sensory organs, and behaviour are interrelated and progressively developed as larvae age.http://www.sciencedirect.com/science/article/pii/S2352513422000540Sensory organ developmentBehaviourAmur catfishLarval stages |
| spellingShingle | Siti Umey Syahirah Mat Nawang Fui Fui Ching Shigeharu Senoo Development of sensory organs and changes of behaviour in larvae Amur catfish, Silurus asotus Aquaculture Reports Sensory organ development Behaviour Amur catfish Larval stages |
| title | Development of sensory organs and changes of behaviour in larvae Amur catfish, Silurus asotus |
| title_full | Development of sensory organs and changes of behaviour in larvae Amur catfish, Silurus asotus |
| title_fullStr | Development of sensory organs and changes of behaviour in larvae Amur catfish, Silurus asotus |
| title_full_unstemmed | Development of sensory organs and changes of behaviour in larvae Amur catfish, Silurus asotus |
| title_short | Development of sensory organs and changes of behaviour in larvae Amur catfish, Silurus asotus |
| title_sort | development of sensory organs and changes of behaviour in larvae amur catfish silurus asotus |
| topic | Sensory organ development Behaviour Amur catfish Larval stages |
| url | http://www.sciencedirect.com/science/article/pii/S2352513422000540 |
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