Vent: A term that refers to the genital pore or sexual organ of fishes. See also Hydrothermal vents.
Vent
word used for external opening of rectum.
Ventral
of the front or lower surface of the mouth.
Vent - 1. n. The uro-genital opening of fish, located between the anus and the anal fin. Also referred to as the genital papilla. 2. v. To determine a fish's gender by examining the genital papillae.
These protuberances which appear at the vent are used respectively for depositing eggs and fertilizing them. The obvious differences in the genital papillae are the first completely reliable indication of sex determination.
I just got some drier vent hose and cut a hole in the side of my garbage pail, and hooked the two up.
SYMPTOMS Body-rot, fin-rot, tail-rot, patches of angry red tissue on body, hemorrhagic discoloration of vent (anal) area of abdomen; ...
In the breeding seasons, females develop a ring-like swelling around the vent area.
[edit] Breeding
These toads are not easy to breed. Spawning takes place at the surface, and the male then directs the eggs onto the female's back.
All that water agitation involved with sucking it up and then churning it through filter media and dumping it back into the tank is sure to vent most if not all of your CO2. Try a canister or internal filter instead.
The male then swims over and the female nuzzles his vent until he releases sperm, which she takes into her mouth to fertilize the eggs. She will do this over and over until 10 to 30 orange/yellow eggs are produced.
When a female guppy is pregnant she will develop a dark triangular shaped gravid spot near her anal vent. This will get larger and darker as the pregnancy progresses.
The male transfers the sperm into her vent with his modified anal fin, called a gonopodium.
Everything went fine for about a month—until the day that Weston noticed a red worm protruding from the vent of that plump, healthy-looking paradise fish.
(Excuse the digression here, but this is my chance to vent my frustration at the aquarium trade -- I think they purposefully give poor medicating information so that the consumer will treat only partially, ...
A sure way to tell is to look at the vent of an adult goldfish. The females have a round white or clear bump on the vent while the males' vents are concave. (like an inny or outty in human bellybuttons) ...
sin oh don tiss - nig ree VENT riss
Etymology
Synodontis: From the Greek syn, meaning together, and odontos, meaning tooth; in reference to the closely-spaced lower jaw teeth. nigri mean dark, ventris meaning belly.
Once courtship is finished, the cories lock together in the "T" position - the female with her head nudged into the side of the male near his vent, the male clasping her barbels to his sides with his pectoral spines.
If a female remains stationary and her partner contacts her vent with his gonopodium, she is fertilized. The sperm is preserved in the female's oviduct, and so even after males are removed, a female is capable of having six or more broods.
I used ducted Lumenarc III reflectors with a centrifugal fan to blow the heat out of the house through a vent in the wall. I also use a room AC that keeps the room at 72 degrees. I keep a ceiling fan in the room running all the time.
Once they are ready for breeding and their whitish spawning tubes protrude from the bottom of the body, it is somewhat easier to tell the sexes apart. As in other cichlids, the female has a shorter, wider, and blunter vent, ...
Dropsy - Symptoms: Scales protruding at a 90° angle to the body; reddening of the vent area; and long, stringy faeces. Euthanasia may be in order.
The common name refers to a keel shape formed by overlapping scales between the vent and tail fin.
Anabantids
Catfish ...
This can then restrict or even stop the flow of water through the pipe. The solution is to either ensure that pipes always slope downwards, an air vent, or air purger at the point where the air collects in the pipe.
In addition, like other livebearers the male has a sex organ called a gonopodium, which acts as a sperm-delivering device (similar to a penis in mammals). The female does not have a gonopodium she has a vent.
Finally, as the eggs ripen, most females will show an egg tube protruding from the vent. This is a small, white nub that is just in front of the anal fin. The tip is round. If the males ever show a tube, it is pointed.
I make my baffles out of foam cubes that I cut to the right size and shape to fit inside the tube. Jim simply lets the CO2 collect at the top of the reactor, where the water is coming in. He does not have a vent and does not seem to have a problem ...
 See also: Fish, Aquarium, Water, Species, Gallon
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