Sentences with phrase «cichlids with»

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

Not exact matches

And cichlid mothers who spend weeks with their mouths full of eggs, waiting for them to hatch.

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

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

Moreover, the results are consistent with molecular genetic data relating to the ongoing diversification of the family in the Great Lakes region of East Africa, which have indicated that hybridization between members of related species or even genera has played a major role in cichlid speciation.

But the Lake Victoria cichlids far surpass Darwin's finches in the astonishing speed with which they diversified: the more than 500 species that live there and only there today all evolved within the past 15,000 to 10,000 years — an eyeblink in geologic terms — compared with the 14 finch species that evolved over several million years.

However, in cooperation with Dr. Ulrich Schliewen (Zoological State Collections, Munich), Reichenbacher and her team have assembled a unique database on the morphology of present - day cichlids, in which all the lineages found in Lake Tanganyika are represented.

With a graduate student, Kapa Lenkov, Fernald tested this directly in cichlids raised in his Stanford lab.

As perhaps with any social creature, Fischer points out that higher social competence and the ability to conform to social hierarchies may well stand the cichlids in good stead in later life:

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

«In each of the two crater lakes new species of the Midas cichlid evolved with an elongated body — a phenotype that does not exist in ancestral lakes from which the colonisers of crater lakes came from,» explains Meyer.

Konstanz evolutionary biologists working with Prof. Axel Meyer have now described parallel evolution of two closely related, but geographically isolated populations of cichlid fish in Nicaraguan crater lakes.

In a 2014 paper, Burghardt and his colleagues from the University of Tennessee and the Smithsonian National Zoological Park described how three cichlid fish played with a thermometer in their tank, bouncing the «toy» repeatedly.

The researchers then took photographs of the cichlids at six different times during development and compared these with each other.

Baby cichlid fish masquerade as snails with mother luring more snails in, which allows the mother to spend less time chasing away predators

But this theory came with a big assumption: Cichlids must have evolved before Gondwana broke up.

They sequenced 10 nuclear genes from 89 modern species of cichlids and 69 other fish to come up with dates when cichlids diverged from their fishy relatives.

Seven of the 14 socialized fish learned to associate yellow with food (high marks for the cichlids, which are not the brightest fish in the animal kingdom), whereas only three of the 15 isolated fish successfully made the same association.

«The Nile perch, preying on cichlids, did indeed decimate stocks of these species in Lake Victoria,» says Matt McGee, who studied the ecology and evolution of fish - eating cichlids for his doctoral thesis at the University of California, Davis, and is now carrying out research on invasive fish species with Ole Seehausen at Eawag and Bern University.

The cichlid, Neolamprologus furcifer, raises its brood in rocky nests near the lake shore — a habitat shared with various snail species.

Descendants of the genetically diverse hybrid population colonized the lake and, within the evolutionarily short period of several thousand years, diverged to form around 500 new (endemic) cichlid species, with a wide variety of ecological specializations.

The research paper, done in collaboration with scientists at the Broad Institute, Eawag Swiss Federal Institute for Aquatic Sciences and Georgia Institute of Technology, in addition to international scientists in the cichlid research community, appears in the September, advance online edition of Nature.

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.

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.

Using nuclear haplotypes with microsatellites to study gene flow between recently separated Cichlid species Hey, J., Y. Won, A. Sivasundar, R. Nielsen, et al. 2004.

Comparative genomic analysis from 82 wild and wild - derived species grouped by microhabitat - use identified variation corresponding with one of these QTL, further supporting broad association with habitat use across the Malawi cichlid radiation.

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).

The new study, done in collaboration with scientists at Eawag Swiss Federal Institute for Aquatic Sciences and Georgia Institute of Technology, in addition to more than 70 scientists from the international cichlid research community, appears in the September 3 advance online edition of Nature.

Finally, we collaborate with Lauren Chapman of McGill University (Montreal, Canada) to study the role of phenotypic plasticity (changes induced by the environment) and genetic assimilation in the process of adaptation and evolutionary change of cichlid fishes.

Over 1,500 cichlid profiles with pictures, description and care 4 great reasons to join: Free to use, not just free to join.

Tucked away in the Pacific Northwest with my wife Denise, a Border Collie named Aoife (pronounced EYE - fa), a guitar collection, and an increasing number of aquariums sporting a variety of fish (cichlids are my new favorites), I live for football season when I can ch....

Tucked away in the Pacific Northwest with my wife Denise, a Border Collie named Aoife (pronounced EYE - fa), a guitar collection, and an increasing number of aquariums sporting a variety of fish (cichlids are my new favorites), I live for football season when I can cheer on the Oregon Ducks and my Super Bowl Champion Seattle Seahawks.

It was a 75 - gallon tank with about 300 juvenile jewel cichlids, a rare species from the Congo River.

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.

They should be familiar with many tetras, barbs, rasboras, danios, rainbows, cichlids, livebearer strains, etc..

Ryan's Pet Supplies will distribute the brand in the U.S. Across the globe, the company partnered with the following distributors: Wise Pet of South Korea, Cichlid Wholesale from Alberta, Canada and Christies in the U.K.