He "discovered" that lion fish have the ability to live in relatively fresh water environments. The 6th grader did an experiment to determine how fresh the water could be and still not kill the fish. Frankly I'm not so sure that Jud even discovered anything that commercial fisherman didn't already know. He just documented his findings in a journal. She, OTOH, performed independent experiments to determine the exact environments in which it is possible for Lion fish to exist. I think his "discovery" was more or less irrelevant to her experiments. There was no need to give him any attribution. He's just jealous that she got all the publicity.
He’s just jealous that she got all the publicity.
I have to agree with you. The 6th grader actually seems more mature.