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Like an tremendous , writhing banana with gills , a shining - yellow catfish founder out of the water and into Martin Glatz ’s gravy holder . Glatz , a professional angler out on a lake in the Netherlands with his matching brother Oliver , had catch many siluriform fish in his life   — but none like this . Glatz panicked at first .

" I have never encounter such a catfish before , " Glatz told Live Science in a direct message . " I am still overwhelmed by it . "

Fisherman Martin Glatz poses with the banana-yellow catfish before releasing it back into the water.

Fisherman Martin Glatz poses with the banana-yellow catfish before releasing it back into the water.

The whacker is a wels catfish ( Silurus glanis ) , a large species that ’s native to lakes and river throughout Europe , fit in toField & Stream . These Pisces are do it for their tremendous sizing ; they can mature to at least 9 foot ( 2.7 metre ) long and librate nearly 300 pounds ( 130 kilogram ) , according to theNational Oceanic and Atmospheric Administration(NOAA ) .

But seldom do they front as banana - hued as the Pisces the Fishes Glatz becharm ; most wels catfish have dark dark-green - mordant body , with a handful of dappled scandalmongering spots , NOAA enunciate .

The lemon - zest catfish belike has leucism , a rarefied genetic disorderliness that get a simplification of pigmentation in skin and hair . ( Unlike albinism , a similar genetic disorderliness , leucism does not feign the animal ’s eye , Live Sciencepreviously report . )

A photo of the Xingren golden-lined fish (Sinocyclocheilus xingrenensis).

Leucism has been maintain in mammalian , reptiles , birds and fish , resulting in striking sightings such asyellow penguinsandwhite killer whales . In 2017 , a leucistic yellow catfish was spotted in the Mississippi River in Iowa , making headlines in the local newspaperHerald & Review .

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While unknown and beautiful to human eyes , leucistic fauna typically face a disadvantage in the wild . With their luminousness , sometimes undimmed trunk , leucistic brute lodge out more to predators and may make easy targets than their to the full pigment cousin-german , Live Science previously reported .

This honkin ' wels mudcat seems to have get away an early death — and may live to raise even more monumental . After take a few photos , Glatz secrete the fish back into the water in hopes that it would grow " very cock-a-hoop , " perhaps giving another angler an even fully grown surprisal on succeeding fishing misstep .

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in the beginning print on Live Science .

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