Sentences with phrase «african cichlid»

The African cichlid aquarium [photo # 3] contains mainly cichlids from Lake Malawi, as well as a group of clown loaches, including four large ones that have been in the tank from the beginning so are at least 15 years old.

In an effort to understand the molecular basis of adaptation in vertebrates, researchers sequenced the genomes and transcriptomes of five species of African cichlid fishes.

We conclude that a number of molecular mechanisms shaped East African cichlid genomes, and that amassing of standing variation during periods of relaxed purifying selection may have been important in facilitating subsequent evolutionary diversification.

The genomic substrate for adaptive radiation in African cichlid fish.

In an effort to understand the molecular basis of adaptation in vertebrates, researchers sequenced the genomes and transcriptomes of five species of the African cichlid fish.

Ole Seehausen, senior author and Head of Fish Ecology and Evolution at Eawag Aquatic Research, said: «African cichlid fish stand out amongst fish by their incredible richness of species that evolved without geographical isolation and that now coexist within individual lakes.

Compared with the ancestral lineage, the East African cichlid genomes possess: an excess of gene duplications; alterations in regulatory, non-protein-coding elements in the genome; accelerated evolution of protein - coding elements, especially in genes for pigmentation; and other distinct features that affect gene expression, such as insertions of transposable elements and regulation by novel microRNAs.

The East African cichlid fishes of Lake Malawi are ideal for investigating behavioral adaptation to environment, as within genera, fine - scale niche partitioning has resulted in sympatric sister species that live in definable microhabitats with distinct selection pressures.

The African cichlid Pelvicachromis taeniatus certainly boasts magnificent coloration: In the females, a purple belly and a blue - green shimmering side stripe signal the onset of sexual maturity.

Incipient species of African cichlid fish have divergent genomic islands associated with mate choice.

They don't signal their ascent from beta to alpha status by turning bright blue, as do males from one species of African cichlid fish.

When researchers placed African cichlid fish in a tank, the fish showed identical aggressive behavior whether their opponent was their reflection or another fish across a clear barrier, ramming and biting at both.

One study attributed higher mental functions to fish, presenting evidence that African cichlids can reason inferentially.

African cichlids, whose visual systems are well studied, evolved in fairly clear, calm, blue lakes with plenty of sunlight.

«This unique resource has made it possible for the first time to place a new fossil species securely within the phylogeny of African cichlids.

To understand the molecular mechanisms underlying cichlid phenotypic diversity, we sequenced the genomes and transcriptomes of five lineages of African cichlids: the Nile tilapia (Oreochromis niloticus), an ancestral lineage with low diversity; and four members of the East African lineage: Neolamprologus brichardi / pulcher (older radiation, Lake Tanganyika), Metriaclima zebra (recent radiation, Lake Malawi), Pundamilia nyererei (very recent radiation, Lake Victoria), and Astatotilapia burtoni (riverine species around Lake Tanganyika).

Then, African cichlids from the Rift Lakes came in, and everyone flocked to them.

By the time you reach Florida, the ground water is hard and alkaline, which is great for African cichlids, many livebearers and brackish - water species, but not so good for many others.

Does someone who destroys Zebra Mussels, Kudzu, African Cichlids, Burmese Pythons, Brown Tree Snakes, or any of the other myriad destructive invasive - species have some personal problem with that species?

For pets, the family dog is a husky named Nanook and Stacy also boasts a 300 - gallon tank filled with African Cichlids.

The store boasts 17 different 240 - gallon systems and three 135 - gallon display tanks that are teeming with neons, sword tails, rasboras, African cichlids and countless other fish.

A mix of fish and other critters including African cichlids, tetras, livebearers, newts and so on are offered for sale in tanks that have all been decorated differently to demonstrate to customers how they can do their own tanks.

Wet Pets by Steve offers a variety of fish including African Cichlids, Fresh and Salt Water Fish, and Corals

Not exact matches

Over a remarkably short period, cichlids in the African great lakes have spawned hundreds of new species, with an enormous range of characteristics.

Indeed, our analysis shows it to be a member of the most ancient cichlid lineage that contributed to the so - called East African Radiation, a spectacular burst of diversification that has given rise to a huge variety of species,» Reichenbacher explains.

For the study, published this week in the journal The American Naturalist, researchers used the Neolamprologus pulcher (N. Pulcher) breed of cichlid, primarily found in Lake Tanganyika — the great African freshwater lake that feeds into the Congo River.

The sequenced species include the Nile tilapia, representing the ancestral lineage, and four East African species: a species that inhabits a river near Lake Tanganyika; a species from Lake Tanganyika that appeared 10 - 20 million years ago; a cichlid species from Lake Malawi that appeared less than 5 million years ago; and a very recent species from Lake Victoria that radiated less than 15,000 to 100,000 years ago.

Stocking Up The major groups of livestock a retailer needs to consider if carrying a full line of aquatics are Florida - raised fish, captive and wild - caught Southeast Asian fish, African fish (wild - caught), Rift Lake cichlids, wild South American fish, koi and goldfish, captive and wild - caught marine fish, marine invertebrates, wild or captive - raised corals, live rock for marine applications, freshwater aquarium aquatic plants, freshwater pond aquatic / bog plants and genetic discus strains.

Not to forget the other cichlids, you need to dedicate a least a month to African Rift Lake species.

Try these groups of freshwater fish and see how they sell: tetras, barbs, rasboras / danios, Corydoras catfish, loricariids, angelfish, dwarf cichlids, Rift Lake cichlids, Asian / African catfishes, Central / South American cichlids and livebearers.

For years, I bred African Rift Lake cichlids with no direct lighting, just eight - foot fluorescents in the ceiling.

There are numerous gravels marketed for African Rift Lake cichlids environments, and they are truly diverse in chemical properties, grain size and grain color.