Behrens et al. investigate the evolution of sex chromosomes in the ancestors of the lacustrine radiations of East African cichlids, showing slower sex chromosome turnover than in the rapidly diversifying haplochromines.

🔗 doi.org/10.1093/gbe/evaf191

This article is published with an accompanying correction:

🔗 https://doi.org/10.1093/gbe/evag076

#genome #evolution #cichlids

These #fish can tell when you’re staring https://www.scientificamerican.com/article/these-fish-know-when-youre-watching-them/

Emperor #cichlids can perceive attention towards their offspring by divers https://royalsocietypublishing.org/rsos/article/13/3/251919/480967/Watching-the-watchers-emperor-cichlids-can

"#Animals are so sensitive to eyelike stimuli that we would expect them to find the gaze threatening or scary if it was directed at them. The study goes a step further by showing that the fish might be able to track where the diver is looking at. It’s not just a reflexive response to eyes being straight at them"

Satoh et al. identify an evolutionary correlation between egg size and parental care strategies in cichlids inhabiting Lake Tanganyika, one of the African Great Lakes.

Read now ahead of print!
https://www.journals.uchicago.edu/doi/10.1086/739303

#Cichlids #LifeHistoryTheory #EEB

Kłodawska et al. examine visual opsin genes sequences and expression in Bermin crater lake cichlids, recovering little coding sequence divergence but high variation in expression profile, suggesting plasticity at the onset of sensory evolution.

🔗 https://doi.org/10.1093/molbev/msaf286

#evobio #molbio #cichlids #opsins

The #rainbow #cichlids are growing on me for sure! Very active and busy.

I much prefer south american cichlids and the large variety they offer. I really don't understand why African cichlids are as popular as they are here. They offer good colors sure but nearly all come in the same physical shape and none of the personalities I've seen with SAs, well, except kribs. The #kribs are nice.

#aquarium #cichlid #fishkepeing

very exciting 😁

#aquarium #kribs #fishhobby #fishbreeding #cichlids

Final species arrived (Fire Fish)! With that, all new inhabitants has now been housed in their respective #aquarium!

Here is the list of the new species:

- Aulonocara sp. 'Fire Fish'
- Chindongo saulosi
- Pelvicachromis pulcher
- Herotilapia multispinosa
- Andinoacara pulcher
- Pterophyllum scalare
- Cleithracara maronii

Excited to see how this works out! Afaik the only #cichlids in my setup that might be a headache to breed are the fire fish

oh, the video almost ended up as a perfect loop 🤣

I did something I didn't think I'd ever do... I handed in some ~200 #guppies (most of my lines) and some ~2kg of #aquarium #moss to my LFS in exchange for #cichlids.

My plan going ahead is to focus first and foremost on larger species, keep just 6 large tanks with minimal maintenance instead of 28 small breeders that need daily work.

I'm also determined to switch my aquarium #plants focus to "minimal-work" #bucephalandra with possibly a small selection of other #rareplants.

Carruthers, @mgenner.bsky.social et al.integrate retinal transcriptomics, phenotypic analyses, and visual modeling to uncover rapid sensory divergence associated with an ecological transition between habitats with different light conditions.

🔗 doi.org/10.1093/molbev/msaf204

#evobio #molbio #cichlids