Hawaii Pacific University’s Rising Tide Conservation yellow tang (Zebrasoma flavescens) breeding program has seen several successes in the past year as it works toward successful captive breeding of the yellow tang.
49 DPH Yellow Tang at the Oceanic InstituteFeeding time for 49 Day Old Yellow Tang at the Oceanic Institute of Hawaii Pacific University!! Read more about this exciting progress with our latest blog post at risingtideconservation.blogspot.com/!!
Posted by Rising Tide Conservation on Wednesday, October 14, 2015
Currently, Dr. Chad Callan says the longest surviving yellow tang babies this year are 70 days post hatch as of October 14, and only a handful are remaining, of which just a couple handful look like the the photo below.
Callen says from a single hatch, the researchers are witnessing gaps in development, with some fish severely stunted compared to their siblings. Dorsal and anal fins are forming, though, and they are excited about that new development. A second group of tangs are 49 days post hatch and appear similar to the 70 day group. There are more than 100 still alive in the second group. They are eating frozen cyclopeeze and are doing el thus far. The third group of baby yellow tangs are 39 days post hatch with more than 1,000 in the tank. They are currently feeding on artemia and dry food.
The big difference between the 2015 hatches as compared to the 2014 hatches are the feeding regimen. The researchers are overlapping the live feeds much longer and are getting a wider variety of food, including copepods, rotifers and artemia, versus copepods exclusively of varying sizes last year. Dry foods are also being given at earlier stages.
Last year, Dr. Callan and the rest of the crew at HPU successfully reared a yellow tang to 83 days post hatch. The successful rearing of this species would be huge for the industry as the yellow tang is arguably one of the most popular wild-caught fish in the hobby.