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Ornate Ghost Pipefish mating, releasing larvae caught on video

By Matt Wandell - Posted Jun 20, 2011 12:00 PM
Since our last update we've been able to observe mating several times, and Academy biologist Rich Ross has captured it on video.
Ornate Ghost Pipefish mating, releasing larvae caught on video

Ornate Ghost Pipefish spawning and 'birthing' at the California Academy of Sciences, June 2011.

As reported earlier on Advanced Aquarist, the California Academy of Sciences' Steinhart Aquarium has a pair of Ornate Ghost Pipefish (Solenostomus paradoxus) on display which have released larvae in captivity. Since our last update we've been able to observe mating several times, and Academy biologist Rich Ross has captured it on video.

Check out the video below to see the entire process of ghost pipefish reproduction--from mating, to a close up look inside the female's pelvic fins where she holds the developing eggs, to larval release. So far we have seen the female release between 20-50 larvae every morning for the last 8 days, followed by mating with the male as soon as we place them back together. Is this typical behavior for the species, or an artifact of captivity? Does she hold eggs and larvae of different age in her pelvic fins at the same time in the wild?

Before you go rushing out to obtain a ghost pipefish or two, you should be aware that the vast majority of these amazing animals collected for the aquarium trade die before ever reaching their intended destination. Those that do make it are often extremely weak from the journey. The individuals described here were carefully collected and shipped by Steinhart Aquarium staff from a shallow seagrass bed in a small Philippine bay to a display tank in San Francisco within less than 36 hours. Along the journey, they received several water changes and were always held in enormous containers. It is our firm belief that this extraordinary level of care during shipping is necessary for these fishes to arrive alive and in good health.

http://vimeo.com/25210712

Author: Matt Wandell
Location: San Francisco

Matt is an Aquatic Biologist at the Steinhart Aquarium, California Academy of Sciences in San Francisco where he helps tend to the 200,000 gallon Philippine Coral Reef exhibit, and has been an avid reefkeeping hobbyist since 1999.

Website: www.calacademy.org.

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