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  • Male long-spine porcupinefish (Diodon holocanthus) pursuing a female fish. This was the culmination of several hours of activity involving a number of males pursuing this female, until finally only one male was left. During the pursuit, the female swam at rapid speed in seemingly random directions, as if she were trying to lose the males. She hid in crevices at times, forcing the males to search for her. The males nipped and bit her constantly. The actual mating event took place well after sundown, with the fish swimming out to a deep part of the channel at about 23 meters, then rushing toward the surface, releasing eggs and sperm at about 12 meters depth.
    long-spine-porcupinefish-mating-diod...tif
  • Male long-spine porcupinefish (Diodon holocanthus) pursuing a female fish. This was the culmination of several hours of activity involving a number of males pursuing this female, until finally only one male was left. During the pursuit, the female swam at rapid speed in seemingly random directions, as if she were trying to lose the males. She hid in crevices at times, forcing the males to search for her. The males nipped and bit her constantly. The actual mating event took place well after sundown, with the fish swimming out to a deep part of the channel at about 23 meters, then rushing toward the surface, releasing eggs and sperm at about 12 meters depth.
    diodon-holocanthus-mating-long-spine...tif
  • Three porcupine pufferfish (Diodon holocanthus) pursuing a female. There were originally five males in pursuit when I first came across this group. The courtship process lasts for several hours, culminating when only one or two males remain. This happened in the evening, around 20:00 hours. The female swam to deep water, around 23m, then rushed for the surface at high speed with the males in pursuit. She released a cloud of eggs at 12m, and the males followed with release of sperm. The courtship process is energetic, with the males chasing and biting the female. The female hid from the males on several occasions, forcing them to find her.
    Diodon-holocanthus-porcupinefish-cou...tif
  • Incredibly cute porcupine pufferfish peeking out from its shelter in a discarded tin can. Makes me want to say "Go home ET".
    cute-smiling-porcupinefish-in-can-le...tif
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Tony Wu Underwater Photography

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