When a fishing guide takes you out and you don’t catch any fish, he may say “Gee, you should have been here last week, they were jumping into the boat.” Yeah, right. When a dive master takes you diving and you come up ask where the coral reef is, she may say, “Gee, you should have been here 40 years ago; it was healthy and beautiful with coral growth and tropical fish all over the place.”…
Recent Content
The Way We Were: 1973: Breeding the Clownfish, Amphiprion ocellaris
First, a little history… There had been a lot of activity, experimentation, and commentary in the late 60s and early 70s on the possibility of rearing marine tropical fish in numbers but no one had yet succeeded.…
The Way We Were: Propagating the Atlantic Neon Goby
In my 50 years as a marine biologist and culturist of marine fish (and a few invertebrates), I have written a number of books, articles, and scientific papers. Some of these are both historically interesting and still have descriptive value for the culture of various species.…
The Breeder’s Net: A New Dawn For The Culture Of Marine Ornamental Fish
There was a day, back in November of 2001, when a dedicated, intense, aquarist, now flirting with middle age, gazed intently into a larvae tank with mounting excitement. The almost infinitesimal larval fish that had been the focus of his existence for so many months now looked a little different on day 5.…
Marine Fish Culture – Grow-out Considerations
How it starts:
…Hey Sally, come look at this. The clownfish spawned!
No! Really?
Yeah, look at that egg patch, there must be 500 little yellow eggs there. And Joe is working them over with his fins and Sally is chasing off all the other fish.
The Breeder’s Net: Propagating The Neon Goby, Gobiosoma Oceanops
I began rearing the common clownfish, Amphripion ocellaris in relatively large numbers in late 1972. This was the first actual commercial scale culture of a tropical marine aquarium fish. Soon after the success with clownfish I wanted to broaden the numbers of species under culture and the neon goby was an excellent candidate.…
The Breeder’s Net: Spawning Modes Of Marine Fish
Almost all marine fish reproduce through production of eggs that develop and hatch while exposed in some way to the marine environment. There are exceptions of course; a few live bearing telosts (bony fishes) like sea horses and brotulids and many elasmobranchs (sharks and rays) produce live young from internal incubation, but most marine fish practice external fertilization and even if the eggs are protected by the parents until hatch, the eggs are exposed to the marine aquatic environment.…
The Breeder’s Net: The Culture Of Ciliates
For the past few months we have examined the staples of the home fish breeders: the culture of phytoplankton species and the use of rotifers are fish fry’s first foods. Also we discussed the fact that a number of fish fry (such as Gobisomas sp.,…
The Breeder’s Net: Science, Biology, And Terminology Of Fish Reproduction: Reproductive Modes And Strategies-Part 1
Problems associated with survival and reproduction require far different solutions in oceanic areas. One way for a species to survive, and thrive, in such an expansive environment is to produce a great many floating (pelagic) eggs and/or larvae and distribute them over great distances.…
The Breeder’s Net: Science, Biology And Terminology Of Fish Reproduction
Before we get into the nuts and bolts of rearing marine fish in a closet, spare room or garage, there is some basic science and biology that one should know about the marine environment and marine fish reproduction.…