For this post, I chose to review the paper “Temporal and Spatial Relations between the Spawning of Humpback Chub and Roundtail Chub in the Upper Colorado River” by Kaeding, Burdick, Schrader, and McAda (1990), in order to determine which type of information source it represents.
Firstly, the paper is written by experts in the field, as all of the authors are professionals in the field, and employed by the US Fish and Wildlife Service to conduct this research. Secondly, the paper includes in-text citations. Thirdly, the paper includes a bibliography (References). Satisfying these three criteria means that this is academic material.
Furthermore, the paper has been peer-reviewed and published in the Transactions of the American Fisheries society, and is reporting on the results of a field study involving Humpback Chub and Roundtail Chub, meaning that this paper can be classified as academic peer-reviewed research material.
As a somewhat related aside, both species (members of the Gila genus) are very cool desert fishes, with unique morphologies that allow them to live in the Colorado River, it is worth a quick read on each if you are interested in native fishes and their ecology/biology.
Humpback Chub: https://en.wikipedia.org/wiki/Humpback_chub
Roundtail Chub: https://en.wikipedia.org/wiki/Roundtail_chub
References:
Kaeding, L. R., Burdick, B. D., Schrader, P. A., & McAda, C. W. (1990). Temporal and Spatial Relations between the Spawning of Humpback Chub and Roundtail Chub in the Upper Colorado River. Transactions of the American Fisheries Society(119), 135-144.