Fish Behavior by Day, Night and Twilight Ⅰ Overview Ⅱ Activities in Fishes 1. Feeding 2....
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Transcript of Fish Behavior by Day, Night and Twilight Ⅰ Overview Ⅱ Activities in Fishes 1. Feeding 2....
![Page 1: Fish Behavior by Day, Night and Twilight Ⅰ Overview Ⅱ Activities in Fishes 1. Feeding 2. Breeding Ⅲ Coral-Reef Fishes 1. Day-time 2. Night-time 3. Twilight.](https://reader038.fdocuments.in/reader038/viewer/2022110103/56649d085503460f949d9e5d/html5/thumbnails/1.jpg)
Fish Behavior by Day, Night and Twilight Ⅰ Overview Ⅱ Activities in Fishes
1. Feeding 2. BreedingⅢ Coral-Reef Fishes 1. Day-time 2. Night-time 3. Twilight 4. Determination of twilight behavior in coral-reef fishesⅣ Diel Patterns in Other Habitat Types 1. Temperate lake 2. Temperate marine fishesⅤ Summary and Prospective
![Page 2: Fish Behavior by Day, Night and Twilight Ⅰ Overview Ⅱ Activities in Fishes 1. Feeding 2. Breeding Ⅲ Coral-Reef Fishes 1. Day-time 2. Night-time 3. Twilight.](https://reader038.fdocuments.in/reader038/viewer/2022110103/56649d085503460f949d9e5d/html5/thumbnails/2.jpg)
Ⅰ Overview
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Ⅱ Activities in Fishes 1. Feeding
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2. Breeding
![Page 8: Fish Behavior by Day, Night and Twilight Ⅰ Overview Ⅱ Activities in Fishes 1. Feeding 2. Breeding Ⅲ Coral-Reef Fishes 1. Day-time 2. Night-time 3. Twilight.](https://reader038.fdocuments.in/reader038/viewer/2022110103/56649d085503460f949d9e5d/html5/thumbnails/8.jpg)
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Ⅲ Coral-Reef Fishes 1. Day-time
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2. Night-time
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3. Twilight
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Five overlapping events at evening twilight that were essentiataly repeated in reverse at dawn. a. Migrations of diurnal fishes b. Cover-seeking of diurnal fishes c. Evacuation of the water column: the quiet period d. Emergence of the nocturnal fishes e. Migrations of nocturnal fishes
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4. Determination of twilight behavior in coral-reef fishes
![Page 26: Fish Behavior by Day, Night and Twilight Ⅰ Overview Ⅱ Activities in Fishes 1. Feeding 2. Breeding Ⅲ Coral-Reef Fishes 1. Day-time 2. Night-time 3. Twilight.](https://reader038.fdocuments.in/reader038/viewer/2022110103/56649d085503460f949d9e5d/html5/thumbnails/26.jpg)
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Ⅳ Diel Patterns in Other Habitat Types
![Page 29: Fish Behavior by Day, Night and Twilight Ⅰ Overview Ⅱ Activities in Fishes 1. Feeding 2. Breeding Ⅲ Coral-Reef Fishes 1. Day-time 2. Night-time 3. Twilight.](https://reader038.fdocuments.in/reader038/viewer/2022110103/56649d085503460f949d9e5d/html5/thumbnails/29.jpg)
1. Temperate lake
![Page 30: Fish Behavior by Day, Night and Twilight Ⅰ Overview Ⅱ Activities in Fishes 1. Feeding 2. Breeding Ⅲ Coral-Reef Fishes 1. Day-time 2. Night-time 3. Twilight.](https://reader038.fdocuments.in/reader038/viewer/2022110103/56649d085503460f949d9e5d/html5/thumbnails/30.jpg)
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Other similarities between two systems:
a.Dawn activities occurring at lower light levels than corresponding dusk activities
b. Upsurge in non-feeding activities (e.g. agonistic behaviour) at dusk
c. Ecological replacement stes, shifting to older individuals and larger-mouthed species at dusk
d. A shift from group to individual activities in the evening
e. A breakdown in characteristic twilight activtities during the breeding season
f. An upsurge in predation at twilight
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2. Temperate marine fishes
![Page 36: Fish Behavior by Day, Night and Twilight Ⅰ Overview Ⅱ Activities in Fishes 1. Feeding 2. Breeding Ⅲ Coral-Reef Fishes 1. Day-time 2. Night-time 3. Twilight.](https://reader038.fdocuments.in/reader038/viewer/2022110103/56649d085503460f949d9e5d/html5/thumbnails/36.jpg)
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Ⅴ Summary and Prospective
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