Intra- and inter-population comparisons of size at reproduction, clutch size, and egg mass revealed differences between one stream and one lake population of ninespine stickleback (Pungitius pungitius ...

Aspects of the ecology and meristic variation of the ninespine stickleback, Pungitius pungitius, were examined in the Matamek River system, near Sept Iles, Québec. The longevity of riverine fish was ...

New research shows that when two species of stickleback fish evolved and lost their pelvises and body armor, the changes were caused by different genes in each species. That surprised researchers, who ...

SALT LAKE CITY, June 4, 2009 – New research shows that when two species of stickleback fish evolved and lost their pelvises and body armor, the changes were caused by different genes in each species.

Last week I had a young man ask me if the fish in my tank had a name. Now, I had not put a fish in the tank, but I thought I would give him the benefit of the doubt. “No,” I said, “All of our animals ...

Top: The ninespine stickleback, Pungitus pungitus, is typical of the saltwater form. Bottom: A freshwater form of stickleback with fewer bony plates and fewer spines. Image based on drawings from the ...

The ninespine stickleback is known to be capable of sophisticated social learning behaviour Male fish refuse to ask for directions when they are breeding, according to new research. A study by the ...