Breeding pioneer Martin Moe discusses his work spawning the Atlantic Jewelfish and shares his original article published in Freshwater and Marine Aquarium magazine in May 1981.
Aquarium Lighting: Moonlight - A Concise Review of Its Spectrum, Intensity, Photoperiod, and Relationship to Coral and Fish Spawning
Moonlight is thought to play an important role in timing reproductive cycles of many coral and fish species. In corals, lunar cycles set the date of spawning, while the time of onset of darkness fine tunes the cycle and decide the hour and minute (then a release of hormones into the water induces mass spawning). Lunar periodicity seems to play a role in timing of reproduction among at least some fish species. It seems apparent that different taxa are affected differently by altered moon phases, if only temporarily.
This was the first article written that described the successful culture of large numbers (relatively speaking) of marine tropical fish. I wrote the article in January/February of 1973 after working with about 10 spawns of Amphiprion ocellaris. It was also my first article in the popular marine aquarist magazines of the time. The article, including editor's comments, is just as it was first printed (with a few spelling corrections).
(Alaska Pacific University) While the aquaculture of corals has greatly improved with recent technological advances in water parameter regulation, flow control, and lighting, a lag persists in physiological examination of the health of coral specimens. A cost-friendly, pulse amplitude modulated (PAM) fluorometer (Junior- or JR-PAM) was used to examine photosynthetic activity of corals within recommended aqua-culturing temperature ranges. A total of 24 coral fragments were used, representing four species: Acropora sp., Montipora digitata, Pavona decussatus, and Seriatopora hystrix. Exposure to typical, aqua-culturing temperature treatments (22, 24, 26, and 28°C) for three week periods revealed significant restrictions of photosynthesis at lower- and higher-end temperatures. Both maximum quantum yield (FV/FM) and maximum, relative electron transport rate (rETR) were significantly different across the four-interval temperature range. The efficacy of the JR-PAM for in situ coral research was also examined, and usefulness for determining coral productivity was assessed.
Martin takes Advanced Aquarist's readers back to the way things were at the dawn of marine fish culture and discusses the breeding of the Atlantic Neon Goby.
A few years ago when I was working on my book about giant clams, I was lucky enough to get a tour of the CV Dinar coral and giant clam aquaculture facility in Indonesia. I'm sure a lot of hobbyists have heard of the "farms" in the Pacific, but I figured I'd give you something of a virtual tour of the place and show you a bit about how things are done there. It was quite interesting to say the least.
To our knowledge, this is the first report of P. lutea's daytime spawning as early as July in Hawaiian waters. The take home message is clear - not all corals spawn at night or do our observations of P. lutea's spawning behaviors correspond to any particular lunar phase. In fact, our observations suggest spawnings are random during periods of warmer water.
American Reef invites you to take advantage of over 30 years of discus fish-breeding experience, as we once again visit Brian Taimuty at Wet Pets and Friends in McMurray, PA.
AmericanReef.com talks with Todd Melman about coral farming.
Media Review: The Complete Illustrated Breeder’s Guide to Marine Aquarium Fishes by Matthew L. Wittenrich
Should someone interested in breeding marine ornamental fish read this book? Read the review to find out.
AmericanReef Video Podcast: SECORE (SExual COral REproduction) successes with Acropora palmata - Part II
Gary Lindner and Russ Kikel at AmericanReef.com this month bring you another podcast, this one discusses how SCORE is having success with reproduction of Acropora palmata.
Press Release: California Academy of Sciences Becomes First Aquarium in US to Breed Dwarf Cuttlefish
Breeding program offers new opportunities to understand a little-studied species, and introduce the public to these fascinating creatures.
Hopefully, as the knowledge base grows, more easily raised species will be found and protocols will be added for harder species so that the foundation's list of captive-bred species available to hobbyists will continue to grow.
Gary Lindner and Russ Kikel at AmericanReef.com this month bring you another podcast, this one concluding their two part series on sexual and asexual coral reproduction.
Even under the best conditions, only a small percent of the eggs ejected in a spawning event will actually get fertilized, and of those that do, maybe 5% will make it through metamorphosis, or even far fewer than that.
Applied Sustainable Aquaculture Inc., The Science and Technology Magnet High School of Southeastern Connecticut. Justin discusses his methods for propagating this interesting nudibrach.
The results of these combined experiments indicated that elevated copper levels can cause accute mortality in flame angelfish and significantly reduce the reproductive performance of orchid dottyback broodstock. Therefore, the use of copper as a therapy for external parasites in these species is cautioned.
Feature Article: Coral Reproduction, Part Four: Non-Scleractinian Anthozoans Including Soft Corals, Zoanthids, and Anemones
This month, well examine what little we know of the sexual reproductive habits of soft corals, zoanthids, a few anemone species and others.