Luis M. da Costa 🐟

Freshwater fish community assessment using eDNA metabarcoding vs. capture-based methods: Differences in efficiency and resolution coupled to habitat and ecology Environmental DNA (eDNA) metabarcoding has revolutionized ecological and environmental research by describing communities without relying on direct ob…

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www.sciencedirect.com/science/arti...

Non-native species drive the global loss of freshwater fish beta-diversity Freshwater ecosystems are facing mounting challenges. The widespread introduction of non-native species, for example, has resulted in the loss of native species and the substantial reconfiguration of ...

A wonderful collaboration with friend Andre Padial and other Brazilian colleagues. We explored changes in biogeographic patterns in global fish diversity caused by the spread of non-native species, teasing apart the geographic and taxonomic drivers of change.
neobiota.pensoft.net/article/1266...

Photographs of the holotype of Barbodes klapanunggalensis sp. nov.

Another new cavefish just dropped!

Barbodes klapanunggalensis, a new species of blind subterranean fish (Cypriniformes, Cyprinidae) from Klapanunggal karst area, West Java, Indonesia, with notes on its conservation

Wibowo et al. 2025

HT Daniel Lumbantobing

Morphometric characters of Protocobitis longibarba sp. nov. A–C lateral, dorsal and ventral views of male, holotype KIZ2024000004 D–F lateral, dorsal and ventral views of female, paratype KIZ2024000003 G ventral view of mouth H live male I lateral and ventral views of skeleton, paratype ZJFRF2402010 J, K suborbital spines (Abbreviations: Pmc, Processus mediocaudalis; Pl-c, Processus latero-caudalis; Pm, Processus medialis; Pm-l, Processus medio-lateralis; Pl-r, Processus latero-rostralis; Pm-r, Processus medio-rostralis).

Distribution of Protocobitis longibarba sp. nov. and the environment of the cave at the time of collection A distribution map of Protocobitis longibarba sp. nov. B Liangfeng Cave in Fengshan County C, D cave in Lingyun County.

A new species of the rib-degenerated loach, genus Protocobitis (Cypriniformes, Cobitidae), from Guangxi, China

Qin et al. 2025 ZooKeys

Always love seeing new weird cavefishes: this one was found in a polluted habitat in China.

HT @thegarfather.bsky.social

zookeys.pensoft.net/article/131341

🔗 to paper, for those finterested: www.nature.com/articles/s41... #killifish

Map showing the locations of earthquake we have written about at Earthquake Insights.

A reminder: If you hear about an earthquake and want to know more about the seismotectonics of an area, you can check our interactive map to see if we've written about it! Faster than waiting for the newest post.

kyleedwardbradley.github.io/earthquake_i...

Mobilizing Natural History Collections in the Global South Abstract Natural History Collections (NHCs) are vital repositories of information about Earth's history, underpinning key developments in biological thought fr

Led by the Iroro Tanshi for the @biojlinnsoc.bsky.social

Announcing a special issue in the Biological Journal of the Linnean Society titled:

"Mobilizing Natural History Collection in the Global South"

I am a guest editor, learn more below...

academic.oup.com/biolinnean/p...

Behaviour of the Apex Predator European Catfish (Silurus glanis) on a Recently Invaded Reservoir The European catfish (Silurus glanis L.) is a large, non-native, invasive freshwater species known for its high fecundity, long lifespan and significant predatory potential, possibly threatening nati...

Our latest paper on European catfish #silurus in Portugal. We looked at environmental influence on depth occupation and activity patterns of this invasive fish and at its burst movements (proxy of predatory behaviour) with the usage of Hurdle models. #MARE

onlinelibrary.wiley.com/doi/full/10....

In no uncertain terms, a demon stinger tells us it means business.

Spotted by @octopolis.bsky.social

Trends in fish diversity in Portuguese estuaries in the past decades and predictions in face of global changes Coastal transition ecosystems like estuaries are amongst the most productive aquatic ecosystems on the planet, recognized worldwide as a fundamental c…

New paper out !!

www.sciencedirect.com/science/arti...

Congratulations to my former student Pedro Brandão that perservered to get his MSc thesis published after a couple of years of back and forth with journals: "Trends in fish diversity in Portuguese estuaries in the past decades and predictions in face of global changes" doi.org/10.1016/j.ec...

Thanks John !!

Can I be added? Thanks

Me! Thank you!

Blenny inflated during capture. Japan

Phylogeny of known inflators

THE INFLATABLE #blenny

Triplespot blenny (Crossosalarias macrospilus)

www.sciencedirect.com/science/arti...

Curbing the major and growing threats from invasive alien species is urgent and achievable - Nature Ecology & Evolution This Perspective highlights the global consensus on the urgency and growing threat of invasive alien species, and management needs, as found by the 2023 report on invasive alien species conducted by t...

The @ipbes.bsky.social IAS assessment provides unequivocal evidence of the growing threat of invasive alien species alongside ambitious but realistic approaches to manage biological invasions. 🧪🌍
Now published in Nature: www.nature.com/articles/s41...

Juvenile zebra mussel attached to a fish.

One of our weird discoveries: 1st field-documented case of a zebra mussel attached to a fish (lake chub). This phoretic association could facilitate 1) within-basin spread of zebra mussels via fish migration & 2) overland transport by anglers moving baitfish. redpath-staff.mcgill.ca/ricciardi/Ri...

Circular timetree of crabs with pie slices colored by superfamily (Figure 2 in the paper). Simplified version with no text/labels. Line drawings of crabs arranged around the perimeter like a zodiac, with colors matching the superfamily pie slice. Figure by me, drawings by Harrison Mancke and Javi Luque

Our paper on convergent evolution of land crabs is out in its final final form. The journal didn't pick my image as the cover, so I'm sharing it here because it must be seen!

academic.oup.com/sysbio/artic...

🦀🦑🧪

Bluesky has VIDEO now?!

Here's one of my favorite fish, Pomacanthus xanthometopon, eating a worm in the lab 😍

Hidden species diversity in the Enteromius Cope, 1867 (Teleostei: Cyprinidae) from the Aruwimi basin (Middle Congo) in the Okapi Wildlife Reserve (Democratic Republic of the Congo) Two new African minnow species, Enteromius cerinus sp. nov. and Enteromius ruforum sp. nov., are described for science from the Angadiko River, a left-bank sub-affluent of first order of the Nepoko R...

Two new fish species description from the Congo River basin
onlinelibrary.wiley.com/doi/10.1111/...