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Ostorhinchus notatus Spawning | Spotnape Cardinalfish

Like other cardinalfish, spotnape cardinalfishes (Ostorhinchus notatus) are paternal mouthbrooders. When a pair of fish are ready to spawn, male and female align side-by-side as shown here. They repeat this behavior multiple times, until such time that the female is ready to push out a cluster of eggs. The female is in the foreground of this photo. Her swollen belly is clearly visible.

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Filename: ostorhinchus-notatus-spawning-spotnape-cardinalfish-201905-403.tif
Copyright: Copyright Tony Wu. All rights reserved. No duplication, reproduction or usage without prior written permission.
Image Size: 6485x4323 / 80.5MB; https://www.photoshelter.com/support/license#rm; https://www.tony-wu.com/contact-tony-wu; Bony Fish Cardinalfish Animalia Chordata Osteichthyes Actinopterygii Perciformes Apogonidae Ostorhinchus notatus Apogon notatus Spotnape Cardinalfish Spot-nape Cardinalfish Kurohoshi-ishimochi Reproduction Spawning Eggs Paternal Mouthbrooding Pacific Japan Shizuoka Prefecture
Contained in galleries: Marine Life | Japan, Marine Life Reproduction, Say Ahhhhh!, Fish Photos

Like other cardinalfish, spotnape cardinalfishes (Ostorhinchus notatus) are paternal mouthbrooders. When a pair of fish are ready to spawn, male and female align side-by-side as shown here. They repeat this behavior multiple times, until such time that the female is ready to push out a cluster of eggs. The female is in the foreground of this photo. Her swollen belly is clearly visible.