from The Century Dictionary.
- noun A short, thick, broad fish, of a deep-yellow color, the Carassius carassius, or German carp, of the family Cyprinidæ.
- Noting those stars which have a spectrum of the type of that of
βCrucis, of which the most extraordinary character is the presence of many oxygen lines.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun A small greenish-brown
carp, Carassius carassius, that is farmed in parts of Europe
Sorry, no etymologies found.
In addition to these extraordinary respiratory adaptations, the crucian carp is the only vertebrate known to be able to change its body morphology to avoid being predated – a mechanism induced by alarm substances sent out by fellow crucian carp when they are in the process of being eaten.
In the crucian carp, the brain electrical activity is at least maintained to a degree that allows continued activity, although some senses are temporarily tuned down.
While the anoxic GABA release is much smaller and more variable in the crucian carp brain than in the turtle brain, a massive GABA release may be used by the crucian carp as a second line of defence for neurons suffering energy deficiency.
The crucian carp is actually a fairly common fish in Europe and also in Asia.
In contrast to anoxia-tolerant turtles, the crucian carp remains active during anoxia, albeit at a reduced level.
By maintaining activity during anoxia, the crucian carp could be able to seek out oxygen rather than having to wait for it to arrive — the only option for the comatose turtle.
Perhaps then the question I should have asked would be: What might be an example of an environment or circumstance which is unusually anoxic and in which crucian carp would be likely to find themselves?
The crucian carp is said to grow at a moderate speed.
Among the known feats of the crucian carp is to go hibernating in the bottom mud of shallow lakes and ponds where the water may freeze completely.
A9.13 The crucian carp – plain looking but truly extraordinary G.E. Nilsson University of Oslo