My post-doctoral research was in hybridization among endangered desert fishes here in the American Southwest, so it has made me happy to read that a new population of the endangered Desert pupfish (Cyprinodon macularius, above) has mysteriously appeared in man-made research ponds in Salton Sea, California. Many of the over 1000 specimens are juveniles, which has lead scientists to infer that substantial breeding is going on in the ponds.
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tags: turtle pond Central Park, NYC,
I don't know about the rest of the world, but in Britain there is a very entrenched tradition of 'feeding the ducks'. People go on walks (usually at the weekend), and they take with them bagfuls of bread (sometimes even whole loaves). They then proceed to throw all the bread in the water.
Apparently yes: Freshwater Farm Ponds Turning into Crab Farms:
tags: turtle pond, reflection, NYC,
The mechanisms of freshwater-fish dispersal have always puzzled me.
No doubt you know Tony Echelle?
Echelle? Yes. But I haven't worked on desert fishes for over ten years now.