Article
Version 1
Preserved in Portico This version is not peer-reviewed
Size Does Matter: Model Selection of Shark Attack Case
Version 1
: Received: 14 February 2021 / Approved: 17 February 2021 / Online: 17 February 2021 (11:57:41 CET)
How to cite: Wibowo, A. Size Does Matter: Model Selection of Shark Attack Case. Preprints 2021, 2021020383. https://doi.org/10.20944/preprints202102.0383.v1 Wibowo, A. Size Does Matter: Model Selection of Shark Attack Case. Preprints 2021, 2021020383. https://doi.org/10.20944/preprints202102.0383.v1
Abstract
Shark unprovoked attacks consist of fatal and non-fatal cases. Numerous cases have been reported involving shark species from Carcharhinus melanopterus with length of 145.5 cm to half-ton Carcharodon carcharias. Currently there are more (P < 0.05) unprovoked non-fatal cases with the average is 28.46 cases/shark species (95%CI: 3.86-53.1) than unprovoked fatal cases, which the average is 5.12 cases /shark species (95%CI: -0.075-10.3). Hence this paper seeks to select the best shark size model that correlates with the unprovoked fatal and non-fatal cases. The studied sharks consist of 24 shark species with the average length is 268.18 cm (95%CI: 230-306 cm) and the average weight is 225.42 kg (95%CI: 128-323 kg). Based on the model and as described by low values of AIC and the highest values of R2 and adjusted R2 , shark weight followed by combinations of shark weight and length produced unprovoked fatal and non-fatal cases best models. The model for explaining unprovoked fatal cases is the shark weight with high numbers of cases observed in large size shark (weight⁓fatal cases, AIC = 165.359, R2 = 0.72, Adj. R = 0.71). While for non-fatal cases, the best model is also the shark weight (weight⁓non fatal cases, AIC = 246.93, R2 = 0.63, Adj. R = 0.59).
Keywords
AIC; model; shark; size; unprovoked
Subject
Biology and Life Sciences, Anatomy and Physiology
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Comments (0)
We encourage comments and feedback from a broad range of readers. See criteria for comments and our Diversity statement.
Leave a public commentSend a private comment to the author(s)
* All users must log in before leaving a comment
