Melanophores of the angelfish, pterophyllum scalare, have previously been shown to display approximately 2,400 microtubules in cells wih pigment dispersed; these microtubules radiate from a presumptive organizing center, the central apparatus (CA), and their number is reduced to approximately 1,000 in the state with aggregated pigment (M. Schliwa and U. Euteneuer, 1978, J. Supramol. Struct. 8:1...

17 The SS-type rotifer Brachionus rotundiformis is a common initial food for rearing fish 18 larvae with small mouth. However, there are commercially important fish species whose mouth 19 sizes are too small to feed on SS-type rotifers. In 2004, we isolated a small (body length= 82.7 20 ±10.9 μm; body width 40.5±6.4 μm), flexible, and iloricate rotifer, Proales similis from an 21 estuary in Oki...

Parasitic diseases are harmful and limiting factors in breeding and rearing ornamental fish industry. In this study, 400 apparently healthy ornamental fishes from five species (each species 80 specimens) including: Goldfish (Carassius auratus), guppy (Poecilia reticulate), angelfish (Pterophyllum scalare), discus (Symphsodon discus) and sailfin molli...

Curiosity about the numerical abilities of non-human animals has been a topic in experimental psychology for about as long as such a science has existed. Some of the earliest comparative work looked at how well animals could use number as a cue in making different kinds of judgments. Early results were mixed, and in some cases were incredibly controversial (e.g., the case of the horse Clever Ha...

5 -Cyprinol sulfate was isolated from bile of the Asiatic carp, Cyprinus carpio . 5 -Cyprinol sulfate was surface active and formed micelles; its critical micellization concentration (CMC) in 0.15 M Na using the maximum bubble pressure device was 1.5 mM; by dye solubilization, its CMC was 4 mM. At concentrations 1 mM, 5 -cyprinol sulfate solubilized monooleylglycerol efficiently (2.1 molecules ...