The Experts below are selected from a list of 360 Experts worldwide ranked by ideXlab platform
Hongsheng Yang - One of the best experts on this subject based on the ideXlab platform.
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effect of water temperature on diel feeding locomotion behaviour and Digestive Physiology in the sea cucumber apostichopus japonicus
The Journal of Experimental Biology, 2018Co-Authors: Jiamin Sun, Libin Zhang, Yang Pan, Chenggang Lin, Fang Wang, Hongsheng YangAbstract:ABSTRACT This study used controlled laboratory conditions to directly assess the role of water temperature in controlling diel feeding and locomotion behaviours, and Digestive Physiology, in the sea cucumber Apostichopus japonicus . The results revealed that both the proportion of feeding individuals and ingestion rate were highest at 16°C. Regardless of water temperature, sea cucumbers appeared to be nocturnal and their peak feeding activity occurred at 00:00 h to 04:00 h. Tentacle insertion rate was not significantly correlated with water temperature ( A. japonicus showed more active feeding and moving activities, and higher Digestive enzyme activities, at night than during the day. These results demonstrated that diel feeding and locomotion behaviours, at least in the short term, were not controlled by light or low water temperature ( A. japonicus had the ability to optimize the Digestive function for the coming feeding peak. These findings should provide valuable information for the development of the aquaculture of this species.
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feeding behavior and Digestive Physiology in sea cucumber apostichopus japonicus
Physiology & Behavior, 2015Co-Authors: Jiamin Sun, Libin Zhang, Yang Pan, Chenggang Lin, Fang Wang, Rentao Kan, Hongsheng YangAbstract:The feeding behavior and Digestive Physiology of the sea cucumber, Apostichopus japonicus are not well understood. A better understanding may provide useful information for the development of the aquaculture of this species. In this article the tentacle locomotion, feeding rhythms, ingestion rate (IR), feces production rate (FPR) and Digestive enzyme activities were studied in three size groups (small, medium and large) of sea cucumber under a 12 h light/12 h dark cycle. Frame-by-frame video analysis revealed that all size groups had similar feeding strategies using a grasping motion to pick up sediment particles. The tentacle insertion rates of the large size group were significantly faster than those of the small and medium-sized groups (P< 0.05). Feeding activities investigated by charge coupled device cameras with infrared systems indicated that all size groups of sea cucumber were nocturnal and their feeding peaks occurred at 02:00-04:00. The medium and large-sized groups also had a second feeding peak during the day. Both IR and FPR in all groups were significantly higher at night than those during the daytime (P <0.05). Additionally, the peak activities of Digestive enzymes were 2-4 h earlier than the peak of feeding. Taken together, these results demonstrated that the light/dark cycle was a powerful environment factor that influenced biological rhythms of A. japonicus, which had the ability to optimize the Digestive processes for a forthcoming ingestion. (c) 2014 Elsevier Inc. All rights reserved.
Jiamin Sun - One of the best experts on this subject based on the ideXlab platform.
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effect of water temperature on diel feeding locomotion behaviour and Digestive Physiology in the sea cucumber apostichopus japonicus
The Journal of Experimental Biology, 2018Co-Authors: Jiamin Sun, Libin Zhang, Yang Pan, Chenggang Lin, Fang Wang, Hongsheng YangAbstract:ABSTRACT This study used controlled laboratory conditions to directly assess the role of water temperature in controlling diel feeding and locomotion behaviours, and Digestive Physiology, in the sea cucumber Apostichopus japonicus . The results revealed that both the proportion of feeding individuals and ingestion rate were highest at 16°C. Regardless of water temperature, sea cucumbers appeared to be nocturnal and their peak feeding activity occurred at 00:00 h to 04:00 h. Tentacle insertion rate was not significantly correlated with water temperature ( A. japonicus showed more active feeding and moving activities, and higher Digestive enzyme activities, at night than during the day. These results demonstrated that diel feeding and locomotion behaviours, at least in the short term, were not controlled by light or low water temperature ( A. japonicus had the ability to optimize the Digestive function for the coming feeding peak. These findings should provide valuable information for the development of the aquaculture of this species.
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feeding behavior and Digestive Physiology in sea cucumber apostichopus japonicus
Physiology & Behavior, 2015Co-Authors: Jiamin Sun, Libin Zhang, Yang Pan, Chenggang Lin, Fang Wang, Rentao Kan, Hongsheng YangAbstract:The feeding behavior and Digestive Physiology of the sea cucumber, Apostichopus japonicus are not well understood. A better understanding may provide useful information for the development of the aquaculture of this species. In this article the tentacle locomotion, feeding rhythms, ingestion rate (IR), feces production rate (FPR) and Digestive enzyme activities were studied in three size groups (small, medium and large) of sea cucumber under a 12 h light/12 h dark cycle. Frame-by-frame video analysis revealed that all size groups had similar feeding strategies using a grasping motion to pick up sediment particles. The tentacle insertion rates of the large size group were significantly faster than those of the small and medium-sized groups (P< 0.05). Feeding activities investigated by charge coupled device cameras with infrared systems indicated that all size groups of sea cucumber were nocturnal and their feeding peaks occurred at 02:00-04:00. The medium and large-sized groups also had a second feeding peak during the day. Both IR and FPR in all groups were significantly higher at night than those during the daytime (P <0.05). Additionally, the peak activities of Digestive enzymes were 2-4 h earlier than the peak of feeding. Taken together, these results demonstrated that the light/dark cycle was a powerful environment factor that influenced biological rhythms of A. japonicus, which had the ability to optimize the Digestive processes for a forthcoming ingestion. (c) 2014 Elsevier Inc. All rights reserved.
Libin Zhang - One of the best experts on this subject based on the ideXlab platform.
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effect of water temperature on diel feeding locomotion behaviour and Digestive Physiology in the sea cucumber apostichopus japonicus
The Journal of Experimental Biology, 2018Co-Authors: Jiamin Sun, Libin Zhang, Yang Pan, Chenggang Lin, Fang Wang, Hongsheng YangAbstract:ABSTRACT This study used controlled laboratory conditions to directly assess the role of water temperature in controlling diel feeding and locomotion behaviours, and Digestive Physiology, in the sea cucumber Apostichopus japonicus . The results revealed that both the proportion of feeding individuals and ingestion rate were highest at 16°C. Regardless of water temperature, sea cucumbers appeared to be nocturnal and their peak feeding activity occurred at 00:00 h to 04:00 h. Tentacle insertion rate was not significantly correlated with water temperature ( A. japonicus showed more active feeding and moving activities, and higher Digestive enzyme activities, at night than during the day. These results demonstrated that diel feeding and locomotion behaviours, at least in the short term, were not controlled by light or low water temperature ( A. japonicus had the ability to optimize the Digestive function for the coming feeding peak. These findings should provide valuable information for the development of the aquaculture of this species.
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feeding behavior and Digestive Physiology in sea cucumber apostichopus japonicus
Physiology & Behavior, 2015Co-Authors: Jiamin Sun, Libin Zhang, Yang Pan, Chenggang Lin, Fang Wang, Rentao Kan, Hongsheng YangAbstract:The feeding behavior and Digestive Physiology of the sea cucumber, Apostichopus japonicus are not well understood. A better understanding may provide useful information for the development of the aquaculture of this species. In this article the tentacle locomotion, feeding rhythms, ingestion rate (IR), feces production rate (FPR) and Digestive enzyme activities were studied in three size groups (small, medium and large) of sea cucumber under a 12 h light/12 h dark cycle. Frame-by-frame video analysis revealed that all size groups had similar feeding strategies using a grasping motion to pick up sediment particles. The tentacle insertion rates of the large size group were significantly faster than those of the small and medium-sized groups (P< 0.05). Feeding activities investigated by charge coupled device cameras with infrared systems indicated that all size groups of sea cucumber were nocturnal and their feeding peaks occurred at 02:00-04:00. The medium and large-sized groups also had a second feeding peak during the day. Both IR and FPR in all groups were significantly higher at night than those during the daytime (P <0.05). Additionally, the peak activities of Digestive enzymes were 2-4 h earlier than the peak of feeding. Taken together, these results demonstrated that the light/dark cycle was a powerful environment factor that influenced biological rhythms of A. japonicus, which had the ability to optimize the Digestive processes for a forthcoming ingestion. (c) 2014 Elsevier Inc. All rights reserved.
Fang Wang - One of the best experts on this subject based on the ideXlab platform.
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effect of water temperature on diel feeding locomotion behaviour and Digestive Physiology in the sea cucumber apostichopus japonicus
The Journal of Experimental Biology, 2018Co-Authors: Jiamin Sun, Libin Zhang, Yang Pan, Chenggang Lin, Fang Wang, Hongsheng YangAbstract:ABSTRACT This study used controlled laboratory conditions to directly assess the role of water temperature in controlling diel feeding and locomotion behaviours, and Digestive Physiology, in the sea cucumber Apostichopus japonicus . The results revealed that both the proportion of feeding individuals and ingestion rate were highest at 16°C. Regardless of water temperature, sea cucumbers appeared to be nocturnal and their peak feeding activity occurred at 00:00 h to 04:00 h. Tentacle insertion rate was not significantly correlated with water temperature ( A. japonicus showed more active feeding and moving activities, and higher Digestive enzyme activities, at night than during the day. These results demonstrated that diel feeding and locomotion behaviours, at least in the short term, were not controlled by light or low water temperature ( A. japonicus had the ability to optimize the Digestive function for the coming feeding peak. These findings should provide valuable information for the development of the aquaculture of this species.
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feeding behavior and Digestive Physiology in sea cucumber apostichopus japonicus
Physiology & Behavior, 2015Co-Authors: Jiamin Sun, Libin Zhang, Yang Pan, Chenggang Lin, Fang Wang, Rentao Kan, Hongsheng YangAbstract:The feeding behavior and Digestive Physiology of the sea cucumber, Apostichopus japonicus are not well understood. A better understanding may provide useful information for the development of the aquaculture of this species. In this article the tentacle locomotion, feeding rhythms, ingestion rate (IR), feces production rate (FPR) and Digestive enzyme activities were studied in three size groups (small, medium and large) of sea cucumber under a 12 h light/12 h dark cycle. Frame-by-frame video analysis revealed that all size groups had similar feeding strategies using a grasping motion to pick up sediment particles. The tentacle insertion rates of the large size group were significantly faster than those of the small and medium-sized groups (P< 0.05). Feeding activities investigated by charge coupled device cameras with infrared systems indicated that all size groups of sea cucumber were nocturnal and their feeding peaks occurred at 02:00-04:00. The medium and large-sized groups also had a second feeding peak during the day. Both IR and FPR in all groups were significantly higher at night than those during the daytime (P <0.05). Additionally, the peak activities of Digestive enzymes were 2-4 h earlier than the peak of feeding. Taken together, these results demonstrated that the light/dark cycle was a powerful environment factor that influenced biological rhythms of A. japonicus, which had the ability to optimize the Digestive processes for a forthcoming ingestion. (c) 2014 Elsevier Inc. All rights reserved.
Chenggang Lin - One of the best experts on this subject based on the ideXlab platform.
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effect of water temperature on diel feeding locomotion behaviour and Digestive Physiology in the sea cucumber apostichopus japonicus
The Journal of Experimental Biology, 2018Co-Authors: Jiamin Sun, Libin Zhang, Yang Pan, Chenggang Lin, Fang Wang, Hongsheng YangAbstract:ABSTRACT This study used controlled laboratory conditions to directly assess the role of water temperature in controlling diel feeding and locomotion behaviours, and Digestive Physiology, in the sea cucumber Apostichopus japonicus . The results revealed that both the proportion of feeding individuals and ingestion rate were highest at 16°C. Regardless of water temperature, sea cucumbers appeared to be nocturnal and their peak feeding activity occurred at 00:00 h to 04:00 h. Tentacle insertion rate was not significantly correlated with water temperature ( A. japonicus showed more active feeding and moving activities, and higher Digestive enzyme activities, at night than during the day. These results demonstrated that diel feeding and locomotion behaviours, at least in the short term, were not controlled by light or low water temperature ( A. japonicus had the ability to optimize the Digestive function for the coming feeding peak. These findings should provide valuable information for the development of the aquaculture of this species.
-
feeding behavior and Digestive Physiology in sea cucumber apostichopus japonicus
Physiology & Behavior, 2015Co-Authors: Jiamin Sun, Libin Zhang, Yang Pan, Chenggang Lin, Fang Wang, Rentao Kan, Hongsheng YangAbstract:The feeding behavior and Digestive Physiology of the sea cucumber, Apostichopus japonicus are not well understood. A better understanding may provide useful information for the development of the aquaculture of this species. In this article the tentacle locomotion, feeding rhythms, ingestion rate (IR), feces production rate (FPR) and Digestive enzyme activities were studied in three size groups (small, medium and large) of sea cucumber under a 12 h light/12 h dark cycle. Frame-by-frame video analysis revealed that all size groups had similar feeding strategies using a grasping motion to pick up sediment particles. The tentacle insertion rates of the large size group were significantly faster than those of the small and medium-sized groups (P< 0.05). Feeding activities investigated by charge coupled device cameras with infrared systems indicated that all size groups of sea cucumber were nocturnal and their feeding peaks occurred at 02:00-04:00. The medium and large-sized groups also had a second feeding peak during the day. Both IR and FPR in all groups were significantly higher at night than those during the daytime (P <0.05). Additionally, the peak activities of Digestive enzymes were 2-4 h earlier than the peak of feeding. Taken together, these results demonstrated that the light/dark cycle was a powerful environment factor that influenced biological rhythms of A. japonicus, which had the ability to optimize the Digestive processes for a forthcoming ingestion. (c) 2014 Elsevier Inc. All rights reserved.