Mastodawn

Scientific Frontline 5h ago

Female mosquitofish (Gambusia hubbsi) adapted to specific environmental pressures exhibit severe aggression toward males from different habitats, creating a behavioral reproductive barrier that can drive the evolution of entirely new species.
#EvolutionaryBiology #Ecology #Ichthyology #sflorg
https://www.sflorg.com/2026/03/ebio03242601.html

Aggressive female fish put stop to mating - may lead to new species

The research complements “female choice” in the evolutionary process and instead highlights “female resistance”

Plazi Species 4d ago

#NewSpecies!
New anchovy from #indonesia just swam in:

Stolephorus falco

Treatment: https://treatment.plazi.org/id/066E0BA3-DCFB-5F8A-AC8E-24A5F1B3593F
Publication: https://doi.org/10.3897/zookeys.1270.175032
#ZooKeys #StolephorusFalco

#FAIRdata
#science #OA #openaccess #biology #taxonomy #ecology #biodiversity #nature #wildlife #conservation #animals #fauna #fish #TeamFish #fishfriday #ichthyology #anchovies

Scientific Frontline 5d ago

A pioneering cellular-level analysis of the brown #trout immune system demonstrates that artificial hatchery rearing conditions induce significant, measurable changes in the gene activity of #fish immune cells.
#Ichthyology #Immunology #MolecularBiology #EvolutionaryBiology #VeterinaryMedicine #Ecology #sflorg
https://www.sflorg.com/2026/03/ich03192601.html

Rearing conditions influence the immune system of brown trout

Every year, millions of fish are bred in captivity and then stocked into our waters to support natural populations.

Plazi Species Mar 13

#NewSpecies!
New lefteye flounder from #taiwan just swam in:

Crossorhombus pescadores

Treatment: https://treatment.plazi.org/id/E1A9F422-4A34-5DF7-A96B-CD063C35A27B
Publication: https://doi.org/10.3897/zookeys.1273.167628
#ZooKeys #CrossorhombusPescadores

#FAIRdata
#science #OA #openaccess #biology #taxonomy #ecology #biodiversity #nature #wildlife #conservation #animals #fauna #fish #TeamFish #fishfriday #ichthyology #flounder

Plazi Species Mar 13

#NewSpecies!
New cavefish from #china just swam in:

Triplophysa xingyiensis

Treatment: https://treatment.plazi.org/id/8DCCFC92-10EF-5216-AAB8-DCE17048D2BB
Publication: https://doi.org/10.3897/zse.102.176660
#ZSEvolution #TriplophysaXingyiensis

#FAIRdata
#science #OA #openaccess #biology #taxonomy #ecology #biodiversity #nature #wildlife #conservation #animals #fish #TeamFish #fishfriday #ichthyology #cavefish

Plazi Species Feb 27

#NewSpecies!
New cusk eel from the #southchinasea just swam in:

Neobythites nanhaiensis

Treatment: https://treatment.plazi.org/id/2A1B3826-5722-5186-B853-750775B00D55
Publication: https://doi.org/10.3897/zookeys.1269.175603
#ZooKeys #NeobythitesNanhaiensis

#FAIRdata
#science #OA #openaccess #biology #taxonomy #ecology #biodiversity #nature #wildlife #conservation #animals #fish #TeamFish #fishfriday #ichthyology #cuskeel #eels

Plazi Species Feb 20

#NewSpecies!
New armoured catfish eel from #brazil just swam in:

Rineloricaria harenae

Treatment: https://treatment.plazi.org/id/D2612F4B-DB3D-5145-8E6A-9C99E0D5535F
Publication: https://doi.org/10.3897/zookeys.1269.155896
#ZooKeys #RineloricariaHarenae

#FAIRdata
#science #OA #openaccess #biology #taxonomy #ecology #biodiversity #nature #wildlife #conservation #animals #fish #TeamFish #fishfriday #ichthyology #catfish #freshwater

Lavali Art Feb 15

When u decide to draw something cuz pretty, but it's low-key hard to draw since the prettiness comes from the details

#art #fish #ichthyology #discus #watercolor

Happy Valentine's! Here's some in-progress art :)

Plazi Species Feb 6

#NewSpecies!
New ilyophine eel from the arabian sea off #oman just swam in:

Branchenchelys megacephala

Treatment: https://treatment.plazi.org/id/6D22C952-320D-FF88-038A-E47D25EE2B48
Publication: https://doi.org/10.11646/zootaxa.5722.4.6
#Zootaxa #BranchenchelysMegacephala

#FAIRdata
#science #OA #openaccess #biology #taxonomy #ecology #biodiversity #nature #wildlife #conservation #animals #fish #TeamFish #fishfriday #ichthyology #eels

Scientific Frontline Feb 3

#Arapaima gigas, colloquially known as the pirarucu, is a giant neotropical freshwater teleost belonging to the family Arapaimidae within the order Osteoglossiformes (bonytongues).
#Metazoa #Ichthyology #sflorg
https://www.sflorg.com/2026/02/met02032601.html

Arapaima (Arapaima gigas): The Metazoa Explorer

Arapaima gigas, colloquially known as the pirarucu