The Experts below are selected from a list of 318 Experts worldwide ranked by ideXlab platform
Yohei Nakamura - One of the best experts on this subject based on the ideXlab platform.
-
Sediment pollution impacts sensory ability and performance of settling coral-reef fish
Oecologia, 2016Co-Authors: J. Jack O’connor, David Lecchini, Hayden J. Beck, Gwenael Cadiou, Gael Lecellier, David J. Booth, Yohei NakamuraAbstract:Marine organisms are under threat globally from a suite of anthropogenic sources, but the current emphasis on global climate change has deflected the focus from local impacts. While the effect of increased sedimentation on the settlement of coral species is well studied, little is known about the impact on larval fish. Here, the effect of a laterite “red soil” sediment pollutant on settlement behaviour and post-settlement performance of reef fish was tested. In aquarium tests that isolated sensory Cues, we found significant olfaction-based avoidance behaviour and disruption of visual Cue use in settlement-stage larval fish at 50 mg L^−1, a concentration regularly exceeded in situ during rain events. In situ light trap catches showed lower abundance and species richness in the presence of red soil, but were not significantly different due to high variance in the data. Prolonged exposure to red soil produced altered Olfactory Cue responses, whereby fish in red soil made a likely maladaptive choice for dead coral compared to controls where fish chose live coral. Other significant effects of prolonged exposure included decreased feeding rates and body condition. These effects on fish larvae reared over 5 days occurred in the presence of a minor drop in pH and may be due to the chemical influence of the sediment. Our results show that sediment pollution of coral reefs may have more complex effects on the ability of larval fish to successfully locate suitable habitat than previously thought, as well as impacting on their post-settlement performance and, ultimately, recruitment success.
-
Sediment pollution impacts sensory ability and performance of settling coral‑reef fish
Oecologia, 2016Co-Authors: J Jack O 'connor, David Lecchini, Gwenael Cadiou, Gael Lecellier, Hayden Beck, David Booth, Yohei NakamuraAbstract:Marine organisms are under threat globally from a suite of anthropogenic sources, but the current emphasis on global climate change has deflected the focus from local impacts. While the effect of increased sedimentation on the settlement of coral species is well studied, little is known about the impact on larval fish. Here, the effect of a laterite “red soil” sediment pollutant on settlement behaviour and post-settlement performance of reef fish was tested. In aquarium tests that isolated sensory Cues, we found significant olfaction-based avoidance behaviour and disruption of visual Cue use in settlement-stage larval fish at 50 mg L−1, a concentration regularly exceeded in situ during rain events. In situ light trap catches showed lower abundance and species richness in the presence of red soil, but were not significantly different due to high variance in the data. Prolonged exposure to red soil produced altered Olfactory Cue responses, whereby fish in red soil made a likely maladaptive choice for dead coral compared to controls where fish chose live coral. Other significant effects of prolonged exposure included decreased feeding rates and body condition. These effects on fish larvae reared over 5 days occurred in the presence of a minor drop in pH and may be due to the chemical influence of the sediment. Our results show that sediment pollution of coral reefs may have more complex effects on the ability of larval fish to successfully locate suitable habitat than previously thought, as well as impacting on their post-settlement performance and, ultimately, recruitment success.
Hongbin Yang - One of the best experts on this subject based on the ideXlab platform.
-
Corrigendum: Laterodorsal tegmentum interneuron subtypes oppositely regulate Olfactory Cue-induced innate fear.
Nature neuroscience, 2016Co-Authors: Hongbin Yang, Junhua Yang, Sijia Hao, Benyan Luo, Liya Zhu, Huifang LouAbstract:Corrigendum: Laterodorsal tegmentum interneuron subtypes oppositely regulate Olfactory Cue-induced innate fear
-
laterodorsal tegmentum interneuron subtypes oppositely regulate Olfactory Cue induced innate fear
Nature Neuroscience, 2016Co-Authors: Hongbin Yang, Junhua Yang, Wang Xi, Xiaobin He, Yanqin Yu, Fuqiang Xu, Shumin Duan, Hao WangAbstract:Innate fear has a critical role in survival of animals. Unlike conditioned fear, the neuronal circuitry underlying innate fear is largely unknown. We found that the laterodorsal tegmentum (LDT) and lateral habenula (LHb) are specifically activated by the mouse predator odorant trimethylthiazoline (TMT). Using optogenetics to selectively stimulate GABAergic neurons in the LDT immediately produced fear-like responses (freezing, accelerated heart rate and increased serum corticosterone), whereas prolonged stimulation caused anxiety-like behaviors. Notably, although selective stimulation of parvalbumin (PV)-positive interneurons similarly induced fear-like responses, stimulation of somatostatin-positive interneurons or inhibition of PV neurons in the LDT suppressed TMT-induced fear-like responses without affecting conditioned fear. Finally, activation of LHb glutamatergic inputs to LDT interneurons was sufficient to generate fear-like responses. Thus, the LHb-LDT pathway is important for regulating Olfactory Cue-induced innate fear. Our results provide a potential target for therapeutic intervention for anxiety disorder.
Gwenael Cadiou - One of the best experts on this subject based on the ideXlab platform.
-
Sediment pollution impacts sensory ability and performance of settling coral-reef fish
Oecologia, 2016Co-Authors: J. Jack O’connor, David Lecchini, Hayden J. Beck, Gwenael Cadiou, Gael Lecellier, David J. Booth, Yohei NakamuraAbstract:Marine organisms are under threat globally from a suite of anthropogenic sources, but the current emphasis on global climate change has deflected the focus from local impacts. While the effect of increased sedimentation on the settlement of coral species is well studied, little is known about the impact on larval fish. Here, the effect of a laterite “red soil” sediment pollutant on settlement behaviour and post-settlement performance of reef fish was tested. In aquarium tests that isolated sensory Cues, we found significant olfaction-based avoidance behaviour and disruption of visual Cue use in settlement-stage larval fish at 50 mg L^−1, a concentration regularly exceeded in situ during rain events. In situ light trap catches showed lower abundance and species richness in the presence of red soil, but were not significantly different due to high variance in the data. Prolonged exposure to red soil produced altered Olfactory Cue responses, whereby fish in red soil made a likely maladaptive choice for dead coral compared to controls where fish chose live coral. Other significant effects of prolonged exposure included decreased feeding rates and body condition. These effects on fish larvae reared over 5 days occurred in the presence of a minor drop in pH and may be due to the chemical influence of the sediment. Our results show that sediment pollution of coral reefs may have more complex effects on the ability of larval fish to successfully locate suitable habitat than previously thought, as well as impacting on their post-settlement performance and, ultimately, recruitment success.
-
Sediment pollution impacts sensory ability and performance of settling coral‑reef fish
Oecologia, 2016Co-Authors: J Jack O 'connor, David Lecchini, Gwenael Cadiou, Gael Lecellier, Hayden Beck, David Booth, Yohei NakamuraAbstract:Marine organisms are under threat globally from a suite of anthropogenic sources, but the current emphasis on global climate change has deflected the focus from local impacts. While the effect of increased sedimentation on the settlement of coral species is well studied, little is known about the impact on larval fish. Here, the effect of a laterite “red soil” sediment pollutant on settlement behaviour and post-settlement performance of reef fish was tested. In aquarium tests that isolated sensory Cues, we found significant olfaction-based avoidance behaviour and disruption of visual Cue use in settlement-stage larval fish at 50 mg L−1, a concentration regularly exceeded in situ during rain events. In situ light trap catches showed lower abundance and species richness in the presence of red soil, but were not significantly different due to high variance in the data. Prolonged exposure to red soil produced altered Olfactory Cue responses, whereby fish in red soil made a likely maladaptive choice for dead coral compared to controls where fish chose live coral. Other significant effects of prolonged exposure included decreased feeding rates and body condition. These effects on fish larvae reared over 5 days occurred in the presence of a minor drop in pH and may be due to the chemical influence of the sediment. Our results show that sediment pollution of coral reefs may have more complex effects on the ability of larval fish to successfully locate suitable habitat than previously thought, as well as impacting on their post-settlement performance and, ultimately, recruitment success.
David Lecchini - One of the best experts on this subject based on the ideXlab platform.
-
Sediment pollution impacts sensory ability and performance of settling coral-reef fish
Oecologia, 2016Co-Authors: J. Jack O’connor, David Lecchini, Hayden J. Beck, Gwenael Cadiou, Gael Lecellier, David J. Booth, Yohei NakamuraAbstract:Marine organisms are under threat globally from a suite of anthropogenic sources, but the current emphasis on global climate change has deflected the focus from local impacts. While the effect of increased sedimentation on the settlement of coral species is well studied, little is known about the impact on larval fish. Here, the effect of a laterite “red soil” sediment pollutant on settlement behaviour and post-settlement performance of reef fish was tested. In aquarium tests that isolated sensory Cues, we found significant olfaction-based avoidance behaviour and disruption of visual Cue use in settlement-stage larval fish at 50 mg L^−1, a concentration regularly exceeded in situ during rain events. In situ light trap catches showed lower abundance and species richness in the presence of red soil, but were not significantly different due to high variance in the data. Prolonged exposure to red soil produced altered Olfactory Cue responses, whereby fish in red soil made a likely maladaptive choice for dead coral compared to controls where fish chose live coral. Other significant effects of prolonged exposure included decreased feeding rates and body condition. These effects on fish larvae reared over 5 days occurred in the presence of a minor drop in pH and may be due to the chemical influence of the sediment. Our results show that sediment pollution of coral reefs may have more complex effects on the ability of larval fish to successfully locate suitable habitat than previously thought, as well as impacting on their post-settlement performance and, ultimately, recruitment success.
-
Sediment pollution impacts sensory ability and performance of settling coral‑reef fish
Oecologia, 2016Co-Authors: J Jack O 'connor, David Lecchini, Gwenael Cadiou, Gael Lecellier, Hayden Beck, David Booth, Yohei NakamuraAbstract:Marine organisms are under threat globally from a suite of anthropogenic sources, but the current emphasis on global climate change has deflected the focus from local impacts. While the effect of increased sedimentation on the settlement of coral species is well studied, little is known about the impact on larval fish. Here, the effect of a laterite “red soil” sediment pollutant on settlement behaviour and post-settlement performance of reef fish was tested. In aquarium tests that isolated sensory Cues, we found significant olfaction-based avoidance behaviour and disruption of visual Cue use in settlement-stage larval fish at 50 mg L−1, a concentration regularly exceeded in situ during rain events. In situ light trap catches showed lower abundance and species richness in the presence of red soil, but were not significantly different due to high variance in the data. Prolonged exposure to red soil produced altered Olfactory Cue responses, whereby fish in red soil made a likely maladaptive choice for dead coral compared to controls where fish chose live coral. Other significant effects of prolonged exposure included decreased feeding rates and body condition. These effects on fish larvae reared over 5 days occurred in the presence of a minor drop in pH and may be due to the chemical influence of the sediment. Our results show that sediment pollution of coral reefs may have more complex effects on the ability of larval fish to successfully locate suitable habitat than previously thought, as well as impacting on their post-settlement performance and, ultimately, recruitment success.
Gael Lecellier - One of the best experts on this subject based on the ideXlab platform.
-
Sediment pollution impacts sensory ability and performance of settling coral-reef fish
Oecologia, 2016Co-Authors: J. Jack O’connor, David Lecchini, Hayden J. Beck, Gwenael Cadiou, Gael Lecellier, David J. Booth, Yohei NakamuraAbstract:Marine organisms are under threat globally from a suite of anthropogenic sources, but the current emphasis on global climate change has deflected the focus from local impacts. While the effect of increased sedimentation on the settlement of coral species is well studied, little is known about the impact on larval fish. Here, the effect of a laterite “red soil” sediment pollutant on settlement behaviour and post-settlement performance of reef fish was tested. In aquarium tests that isolated sensory Cues, we found significant olfaction-based avoidance behaviour and disruption of visual Cue use in settlement-stage larval fish at 50 mg L^−1, a concentration regularly exceeded in situ during rain events. In situ light trap catches showed lower abundance and species richness in the presence of red soil, but were not significantly different due to high variance in the data. Prolonged exposure to red soil produced altered Olfactory Cue responses, whereby fish in red soil made a likely maladaptive choice for dead coral compared to controls where fish chose live coral. Other significant effects of prolonged exposure included decreased feeding rates and body condition. These effects on fish larvae reared over 5 days occurred in the presence of a minor drop in pH and may be due to the chemical influence of the sediment. Our results show that sediment pollution of coral reefs may have more complex effects on the ability of larval fish to successfully locate suitable habitat than previously thought, as well as impacting on their post-settlement performance and, ultimately, recruitment success.
-
Sediment pollution impacts sensory ability and performance of settling coral‑reef fish
Oecologia, 2016Co-Authors: J Jack O 'connor, David Lecchini, Gwenael Cadiou, Gael Lecellier, Hayden Beck, David Booth, Yohei NakamuraAbstract:Marine organisms are under threat globally from a suite of anthropogenic sources, but the current emphasis on global climate change has deflected the focus from local impacts. While the effect of increased sedimentation on the settlement of coral species is well studied, little is known about the impact on larval fish. Here, the effect of a laterite “red soil” sediment pollutant on settlement behaviour and post-settlement performance of reef fish was tested. In aquarium tests that isolated sensory Cues, we found significant olfaction-based avoidance behaviour and disruption of visual Cue use in settlement-stage larval fish at 50 mg L−1, a concentration regularly exceeded in situ during rain events. In situ light trap catches showed lower abundance and species richness in the presence of red soil, but were not significantly different due to high variance in the data. Prolonged exposure to red soil produced altered Olfactory Cue responses, whereby fish in red soil made a likely maladaptive choice for dead coral compared to controls where fish chose live coral. Other significant effects of prolonged exposure included decreased feeding rates and body condition. These effects on fish larvae reared over 5 days occurred in the presence of a minor drop in pH and may be due to the chemical influence of the sediment. Our results show that sediment pollution of coral reefs may have more complex effects on the ability of larval fish to successfully locate suitable habitat than previously thought, as well as impacting on their post-settlement performance and, ultimately, recruitment success.
