Guppy fish

Mark via email Mine is pregnant but I dont know how long and what to do when it gives birth? The gestation period for guppies is usually about 28 days but it can take longer for them to have babies.

Guppy fish

Taxonomy[ edit ] Guppies were first described in Venezuela as Poecilia reticulata by Wilhelm Peters in and as Lebistes poecilioides in Barbados by De Filippi in Then inRosen and Bailey brought it back to its original name, Poecilia reticulata. While the taxonomy of the species was frequently changed and resulted in many synonyms, "guppy" remains the common name even as Girardinus guppii is now considered a junior synonym of Poecilia reticulata.

Virgin Islandsand Venezuela. Sometimes this has occurred accidentally, but most often as a means of mosquito control.

The guppies were expected to eat the mosquito larvae and help slow the spread of malariabut in many cases, these guppies have had a negative impact on native fish populations. Although not typically found there, guppies also have tolerance to brackish water and have colonized some brackish habitats.

While wild-type females are grey in body color, males have splashes, spots, or stripes that can be any of a wide variety of colors. A variety of guppy strains are produced by breeders through selective breedingcharacterized by different colours, patterns, shapes, and sizes of fins, such as snakeskin and grass varieties.

Many domestic strains have morphological traits that are very distinct from the wild-type antecedents. Males and females of many domestic strains usually have larger body size and are much more lavishly ornamented than their wild-type antecedents. Guppies Guppy fish well developed and capable of independent existence without further parental care by the time they are born.

Young guppies school together and perform antipredator tactics. Brood size is extremely variable, yet some consistent differences exist among populations depending on the predation level and other factors. Female guppies first produce offspring at 10—20 weeks of age, and they continue to reproduce until 20—34 months of age.

Male guppies mature in 7 weeks or less. Maturity[ edit ] Guppies' body sizes are positively correlated with age, and their size at maturation varies highly depending on the predation risk of their habitats.

Male and female guppies from high-predation regions mature faster and start reproducing earlier, and they devote more resources to reproduction than those from low-predation regions.

Female guppies' reproductive success is also related to age. Older females produce offspring with reduced size and at increased interbrood intervals. Guppies from high-predation environments suffer high extrinsic mortality rate because they are more likely to be killed by predators.

Female guppies from high-predation habitats experience a significant increase in mortality at 6 months of age, while those from low-predation habitats do not suffer increased mortality until 16 months. However, guppies from high-predation environments were found to have longer lifespans because their reproductive lifespans are longer.

No significant difference is seen in postreproductive lifespans. Guppies reduce their fecundity and reproductive allocation in response to scarce food.

When food is abundant, they increase brood size. For example, during the wet season from May to December, guppies in the Northern Range of Trinidad reduce their investment in reproduction regardless of predation level, possibly in response to decreased food resources.

Sexual dimorphism of guppies

The cost of multiple mating for males is very low because they do not provide material benefit to the females or parental care to the offspring. Conversely, multiple mating can be disadvantageous for females because it reduces foraging efficiency and increases the chances of predation and parasitic infection.

For example, females that mate multiply are found to be able to produce more offspring in shorter gestation time, and their offspring tend to have better qualities such as enhanced schooling and predator evasion abilities.

Experiments show that remating females prefer a novel male to the original male or a brother of the original male with similar phenotypes.

Females' preference for novel males in remating can explain the excessive phenotypic polymorphism in male guppies. Inbreeding depression is considered to be due largely to the expression of homozygous deleterious recessive mutations. However, inbreeding avoidance mechanisms that operate subsequent to copulation are less well known.

In guppies, a post-copulatory mechanism of inbreeding avoidance occurs based on competition between sperm of rival males for achieving fertilization. Female guppies are attracted to brightly colored males, especially ones with orange spots on the flank. Because of this connection, females are possibly selecting for healthy males with superior foraging abilities by choosing mates with bright orange carotinoid pigments, thus increasing the survival chance of her offspring.

Guppy fish

The rate and duration of courtship display of male guppies also play an important role in female guppies' mating choice. Courtship behavior is another indicator of fitness due to the physical strength involved in maintaining the courtship dance, called sigmoid display, in which the males flex their bodies into an S shape and vibrate rapidly.The Guppy (Poecilia reticulata) is one of the most popular freshwater fish species and there are plenty of reasons for their popularity.

Guppy fish

They are colorful, lively, extremely fun to watch, and are adaptable to a great variety of conditions. The best choices are the special smaller pellets, designed for smaller fish such as guppies.

Guppies can also enjoy live or freeze-dried food in their diet. Popular live or freeze-dried foods suitable for guppies include brine shrimp, daphnia, mosquito larvae, and bloodworms. The Guppy is perhaps the most popular freshwater tropical fish species.

A great tropical fish for freshwater aquarium fish beginners, the Guppy is a very hardy. WorldwideTropicals Live Freshwater Aquarium Fish - (5) 5-Pack of Mixed Color Male Guppies - 5 of Mixed Color Male Guppies - by Live Tropical Fish - Great For Aquariums - Populate Your Fish Tank!

by WorldwideTropicals. Aquarium guppies are super popular because you can keep them in a smaller tank and their bio-load is small. They also happen to be filled with bright colors making them beautiful and fun to watch. This site is a resource and community devoted to these awesome fish.

hello. Oct 06,  · I have spent over £50 on fish. 6 male guppies, 17 female guppies (but one died this evening (RIP fishy I'm trying to save your family) & gouramis, a pleco & some other sucky fish came with the tank & some nasty bugger that has munched most of my guppies tails bless them.

Fancy Guppies & Caring for Guppy Fish - Aquariums