A female cod will lay up to 500 000 eggs per kg of her own weight. Consequently, a 3 year-old female of half a kg can produce 250000 eggs; an 8 year-old female of 5 kg can produce 2.5 million eggs per year.
Some species only lay a single egg. Others lay up to 30. Even within some species there can be considerable variation-for example, … Testudo hermanni boettgeri (the eastern or balkan Hermann's tortoise) usually lays between 6-10 eggs. By comparison, Testudo hermanni hermanni (the western Hermann's tortoise) typically only lays 3 eggs per clutch A single female can lay as many as 1 million eggs, depending on her size. The embryos develop for 4-5 weeks in the cold water and hatch at the tiny size of 3-3.5 mm (less than 0.15 in)--one of the smallest of freshwater fish larvae.  If a species sticks around and looks after the eggs until they hatch, and even watches over the baby fish, usually less eggs are laid. For example, Cod lay up to 9 million eggs, but these are left to drift where they will, and so many don't survive even to hatch. Herrings, which lay around 50,000 eggs, also abandon them, but the eggs stick to the bottom and are less likely to be eaten by predators. That is how this fish lays eggs.   Actually, it depends on the fish. Some fish, like salmon, lay only a few hundred eggs. But generally, marine fish lay more eggs. Some marine fish lay millions of eggs. 1 Both sexes usually reproduce for the first time when 5 or 6 years old. 2  The fecundity (number or eggs produced in a given year) of females increases with size and age. 3  A 40 inch female may lay about 3 million eggs, and a 50 inch female up to 9 million eggs in one spawning season. The Atlantic cod is a winter spawner. It reproduces from November to December along the coast of southern New England. Reproduction: Both sexes usually reproduce for the first time when 5 or 6 years old. The fecundity (number or eggs produced in a given year) of females increases with size and age. The number of eggs that a female shrimp will lay depends on her age and her size; the older and larger she is, the more eggs she will lay. When she is 3 years old, she can lay … more than twenty five thousand eggs. + 24 others found this useful. Rebecca Cashwell-Valentino. Others lay up to 30. Even within some species there can be considerable variation-for example, … Testudo hermanni boettgeri (the eastern or balkan Hermann's tortoise) usually lays between 6-10 eggs. The number of eggs a fish lays at a time varies widely among different species and sizes of fish. Some fish lay only a few; others lay millions. Usually this has something to … do with how the fish care for their eggs. That is how this fish lays eggs.   Actually, it depends on the fish. Some fish, like salmon, lay only a few hundred eggs. But generally, marine fish lay more eggs. Some marine fish lay millions of eggs. Female cod about 80 cm long produce about two million eggs, while a cod of about 130 cm produced over 11 million eggs. The eggs are buoyant, round and about 1 to 2 mm in diameter. They float in water of about 30% salinity (coastal surface water). Thus they rise and remain at or near the surface while they are hatching. Also, this stage lasts longer than the egg stage. In addition, they need a steady supply of food and will die if there isn't enough. Those that do survive, drift and grow until midsummer. At this point they are young fish about 2 - 2.5 cm (3/4 - 1 in.) in length. Eggs are transparent and measure around 1.5 mm in diameter. Baltic cod produce larger eggs, possibly as an adaptation to float in low salinity waters (10 ). The eggs hatch within a month in normal sea temperatures. Consequently, a 3 year-old female of half a kg can produce 250000 eggs; an 8 year-old female of 5 kg can produce 2.5 million eggs per year. A female cod will lay up to 500 000 eggs per kg of her own weight. Consequently, a 3 year-old female of half a kg can produce 250000 eggs; an 8 year-old female of 5 kg can produce 2.5 million eggs per year. A cod can live to over 25 years of age and weigh over 90 kg. Although the fecundity decreases at large weights, a heavy female will still produce an impressive number of eggs A n adult female cod lays between 4 and 6 million eggs at a single spawning. The eggs are released into the water to become fertilized. They develop and grow without help from the parents. All but a handful of these millions of eggs will end up as food for other water creatures. Also, this stage lasts longer than the egg stage. In addition, they need a steady supply of food and will die if there isn't enough. Those that do survive, drift and grow until midsummer. At this point they are young fish about 2 - 2.5 cm (3/4 - 1 in.) in length.
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how many eggs does a cod lay