Pauers et al. - Labeotropheus morphology for Character Displacement Study

Description

This file contains the data used to examine morphological and meristic characteristics among several populations of Labeotropheus in Lake Malawi/Nyasa. We used these data to determine whether or not character displacement had occurred between sympatric L. trewavasae and L. fuelleborni. Briefly, we did find that, when they were found in sympatry, L. trewavasae had a different maxillofacial morphology than when it was found allopatric from a deep-bodied Labeotropheus akin to L. fuelleborni. The individual morphological measurements, taken by MJP with digital calipers, are found in columns J-AM in the uploaded Excel sheet. The abbreviations include: HL: head length SL standard length Pec: pectoral fin DF: dorsal fin DFO: origin of the dorsal fin DFI: insertion of the dorsal fin AFO: origin of the anal fin AFI: insertion of the anal fin VCF: ventral attachment of the caudal fin DCF: dorsal attachment of the caudal fin UJL: upper jaw length LJL: lower jaw length LJW: lower jaw width IOW: interorbital width SnW: snout width Tab-Tab: width at the opercular tabs Pec-Pec: width at the pectoral fins Pel-Pel: width at the pelvic fins LLS: lateral line scales ScDL: dorsolateral scale rows ScPP: Pectoropelvic scale rows DFS: Dorsal fin spines DFR: dorsal fin rays AFS: anal fin spines AFR: anal fin rays GR: Gill rakers MORPH 1: 1st morphological principal component MORPH 2-5: 2nd-5th SHEARED morphological principal components Following Pauers (2016, 2017), we used the 2nd sheared principal component as a proxy for body shape. All specimens used in this study were captured with the cooperation and collaboration of the Malawi Department of Fisheries (Titus B. Phiri, Deputy Director) and the Tanzanian Fisheries Research Institute (Peter N. Gabagambi, Head of Kyels Station, and Asilatu Shechonge).

Steps to reproduce

All of the data necessary to replicate our results are present. You will need to conduct analyses of variance on the latitudinal and morphological data, as well as comparing the morphology of Labeotropheus between sympatric and allopatric populations.

Institutions

• Milwaukee Public Museum

  Wisconsin, Milwaukee
• University of Wisconsin–Whitewater

  Wisconsin, Whitewater

Categories

Licence