IND UCTION OF SPAW NING IN THE TR OPICAL WALKING CATFISH (C la rias b atr ac hus) BY CONTROLLI NG WATER L EVEL AND T EMPERAT URE
This experiment was carried out t o confirm the rol e of water level and w ater temperature i n indu cing t he s pawning o f tr opical walking catfi sh . Ma ture mal es an d females reared un de r 23 - 2 5 °C, were paired and in duced to spa wn by cont rolling w ater level and w ater te...
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| Format: | Article |
| Language: | English |
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SEAMEO, BIOTROP
2001-01-01
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| Series: | Biotropia: The Southeast Asian Journal of Tropical Biology |
| Subjects: | |
| Online Access: | http://journal.biotrop.org/index.php/biotropia/article/view/165/135 |
| _version_ | 1811276447931695104 |
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| author | M. ZAIRIN JR. K. AiDA K. FURUKAWA |
| author_facet | M. ZAIRIN JR. K. AiDA K. FURUKAWA |
| author_sort | M. ZAIRIN JR. |
| collection | DOAJ |
| description | This experiment was carried out t o confirm the rol e of water level and w ater temperature i n indu cing t he s pawning o f tr opical walking catfi sh . Ma ture mal es an d females reared un de r 23 - 2 5 °C, were paired and in duced to spa wn by cont rolling w ater level and w ater temperature. Decr easi ng water level and returni ng it to its original level r esulted i n a low spawni ng r ate (l es s t han 6. 7 %) at 23 °C . Decreasing water level with simultaneous increase in water temperature, followed by returning the respective levels to their originals gave high spa wning rates ( 41.7 — 50 %); whereas the s ame treatment but without a ny water temperature decrea sed when t he wate r le vel was return ed t o t he initial level, gave a lo w spawning rate (16 .7 %). In creasin g water level only, fail ed to ind uce spa wning . A high spawning rate was obtained also when changes in water level were ca rried out under high t emperature of 28 °C. No fish spawned in the ab sence of the environmental stimulation. From the results, i t is confirmed that water le vel and t emperature play important r oles i n i nducin g spaw ning of tropical walki ng catfish. Changes i n water t emperature probably increas e the sensitivity of fish to th e change in water level. Prolo nged exposure to high water tem perature c ould also improve the sensitivity of fish. |
| first_indexed | 2024-04-12T23:56:36Z |
| format | Article |
| id | doaj.art-302bbca103d84f0295809c6e2e0e5c81 |
| institution | Directory Open Access Journal |
| issn | 0215-6334 1907-770X |
| language | English |
| last_indexed | 2024-04-12T23:56:36Z |
| publishDate | 2001-01-01 |
| publisher | SEAMEO, BIOTROP |
| record_format | Article |
| series | Biotropia: The Southeast Asian Journal of Tropical Biology |
| spelling | doaj.art-302bbca103d84f0295809c6e2e0e5c812022-12-22T03:11:28ZengSEAMEO, BIOTROPBiotropia: The Southeast Asian Journal of Tropical Biology0215-63341907-770X2001-01-01161827IND UCTION OF SPAW NING IN THE TR OPICAL WALKING CATFISH (C la rias b atr ac hus) BY CONTROLLI NG WATER L EVEL AND T EMPERAT UREM. ZAIRIN JR.K. AiDAK. FURUKAWAThis experiment was carried out t o confirm the rol e of water level and w ater temperature i n indu cing t he s pawning o f tr opical walking catfi sh . Ma ture mal es an d females reared un de r 23 - 2 5 °C, were paired and in duced to spa wn by cont rolling w ater level and w ater temperature. Decr easi ng water level and returni ng it to its original level r esulted i n a low spawni ng r ate (l es s t han 6. 7 %) at 23 °C . Decreasing water level with simultaneous increase in water temperature, followed by returning the respective levels to their originals gave high spa wning rates ( 41.7 — 50 %); whereas the s ame treatment but without a ny water temperature decrea sed when t he wate r le vel was return ed t o t he initial level, gave a lo w spawning rate (16 .7 %). In creasin g water level only, fail ed to ind uce spa wning . A high spawning rate was obtained also when changes in water level were ca rried out under high t emperature of 28 °C. No fish spawned in the ab sence of the environmental stimulation. From the results, i t is confirmed that water le vel and t emperature play important r oles i n i nducin g spaw ning of tropical walki ng catfish. Changes i n water t emperature probably increas e the sensitivity of fish to th e change in water level. Prolo nged exposure to high water tem perature c ould also improve the sensitivity of fish.http://journal.biotrop.org/index.php/biotropia/article/view/165/135Walking catfish / spawni ng / water level / water temperature |
| spellingShingle | M. ZAIRIN JR. K. AiDA K. FURUKAWA IND UCTION OF SPAW NING IN THE TR OPICAL WALKING CATFISH (C la rias b atr ac hus) BY CONTROLLI NG WATER L EVEL AND T EMPERAT URE Biotropia: The Southeast Asian Journal of Tropical Biology Walking catfish / spawni ng / water level / water temperature |
| title | IND UCTION OF SPAW NING IN THE TR OPICAL WALKING CATFISH (C la rias b atr ac hus) BY CONTROLLI NG WATER L EVEL AND T EMPERAT URE |
| title_full | IND UCTION OF SPAW NING IN THE TR OPICAL WALKING CATFISH (C la rias b atr ac hus) BY CONTROLLI NG WATER L EVEL AND T EMPERAT URE |
| title_fullStr | IND UCTION OF SPAW NING IN THE TR OPICAL WALKING CATFISH (C la rias b atr ac hus) BY CONTROLLI NG WATER L EVEL AND T EMPERAT URE |
| title_full_unstemmed | IND UCTION OF SPAW NING IN THE TR OPICAL WALKING CATFISH (C la rias b atr ac hus) BY CONTROLLI NG WATER L EVEL AND T EMPERAT URE |
| title_short | IND UCTION OF SPAW NING IN THE TR OPICAL WALKING CATFISH (C la rias b atr ac hus) BY CONTROLLI NG WATER L EVEL AND T EMPERAT URE |
| title_sort | ind uction of spaw ning in the tr opical walking catfish c la rias b atr ac hus by controlli ng water l evel and t emperat ure |
| topic | Walking catfish / spawni ng / water level / water temperature |
| url | http://journal.biotrop.org/index.php/biotropia/article/view/165/135 |
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