Parosphromenus gunawani & Parosphromenus phoenicurus
Parosphromenus gunawani spec. nov. (previously known as
P.
spec. “Danau Rasau”) and
P. phoenicurus spec. nov. (previously
known as
P. spec. “Langgam”) are described from Sumatra,
Indonesia.
Parosphromenus gunawani is similar to
P. bintan but
differs from it by lacking the prominent broad blue band in the caudal fin of
males. It is distinguished from the remaining species of the genus by an unique
combination of meristic and colour character
states.
Parosphromenus phoenicurus can be distinguished from all the
other species of the genus by the rhombic caudal-fin shape in males (versus
round or lanceolate with filaments).
Sursa: Vertebrate Zoology
Stone-Sucking Fish
One of the 26 new species of Greater Mekong fish highlighted in the WWF report is this previously unknown catfish of the genus Oreoglanis.
Found in rocky, fast-flowing streams all over Thailand, the new catfish is distinguished by its large pointed teeth and a notch in its lower lip.
The fish's unique body shape, combined with its enlarged fins, form a sucker-like mechanism that allows it to stick to hard substrates during torrential rains, earning it the nickname of "stone-sucking fish" among the Thai people.
Sursa: National Geographic
Două specii de meduze carnivore au distrus 11 din 15 specii de peşti din Marea Neagră
Marea Neagră este în pericol. Două specii de meduze carnivore, venite tocmai din oceanul Atlantic, sunt spaima peştilor din Marea Neagră. Biologii spun că meduzele au distrus definiv 11 din cele 15 specii de peşti din marea noastră. Totul în mai puţin de 30 de ani.
Biologii spun că situaţia din adâncul Mării Negre este destul de gravă. Meduzele carnivore de import s-au inmulţit peste măsură. În Oceanul Atlantic, aceste specii de meduze au duşmani naturali, marini care le controlează inmulţirea. Dar la noi, în Marea Neagră, meduzele au ajuns să facă legea... Iar efectele asupra peştilor sunt dramatice
