2006-11-09 06:06:03 · 5 answers · asked by debd3360 1 in Pets ➔ Fish
The eggs of fish are fertilized either externally or internally, depending on species. The female usually lays the eggs, and the embryos in the eggs develop and hatch outside her body. These kind of fish are called oviparous fish. Oviparous fish develop by obtaining food from the yolk in the egg. Salmon, for example, are oviparous.
Ovoviviparous fish keep the eggs inside of the mother's body after internal fertilization. Each embryo develops in its own egg. The young are "born alive" like most mammals.
Some species of fish, such as various sharks, are viviparous. Viviparous fish allow their embryos to stay in the mother's body like ovoviviparous fish. However, the embryos of viviparous fish obtain needed substances from the mother's body, not through material in the egg. The young of viviparous species are also "born alive".
2006-11-09 06:20:20 · answer #1 · answered by varun 2 · 1⤊ 1⤋
it differs from fish to fish.you must be knowing there r egg layers also live bearers.in aquarium varieties i came across fishes having preganacy period of about 45 days to one month.when water temperature goes up it lays egss or delivers early.
2006-11-12 08:11:54 · answer #2 · answered by surendiran 1 · 0⤊ 0⤋
fish dont get pregnant, they lay eggs
2006-11-11 06:16:30 · answer #3 · answered by Anonymous · 0⤊ 0⤋
fish dont get pregnant, they lay eggs
2006-11-09 14:09:00 · answer #4 · answered by IntelliGirl 1 · 1⤊ 2⤋
hee hee hee hee haw haw haw haw heehoohaahuuhiii!
depends on the fish.
2006-11-09 18:03:15 · answer #5 · answered by Anonymous · 1⤊ 0⤋