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Skeletal deformities in the invasive pumpkinseed sunfish (Lepomis gibbosus) inhabiting Turkish inland waters Cover

Skeletal deformities in the invasive pumpkinseed sunfish (Lepomis gibbosus) inhabiting Turkish inland waters

Open Access
|Sep 2026

Figures & Tables

Figure 1

Map of GDL showing the sampling stations where L. gibbosus were collected. GDL, Gökpınar Dam Lake.

Figure 2

Normal specimens of L. gibbosus (73.6 mm SL). SL, Standard length.

Figure 3

Mammography showing the normal skeletal system of L. gibbosus (36.3 mm SL). SL, Standard length.

Figure 4

Specimen of L. gibbosus (36.3 mm SL) exhibiting a representative case of vertebral fusion in the caudal vertebrae and an abdominal rib deformity. SL, Standard length.

Figure 5

Deformities of the hypural bones in L. gibbosus. (A) Specimen at 76.6 mm SL; (B) specimen at 67.9 mm SL. SL, standard length.

Figure 6

Abdominal rib deformity in a L. gibbosus specimen (75.4 mm SL), characterized by misalignment along the entire length of all ribs. SL, standard length.

Figure 7

Caudal fin deformity in a L. gibbosus specimen (56.5 mm SL). The six ventral-most caudal fin rays are acutely curved downward. The fifth ray (counting ventrally) exhibits callus formation on the anterior third of its length. SL, standard length.

Figure 8

Hemal spine deformity in a L. gibbosus specimen (72.1 mm SL), where the hemal spine of the second preural vertebra had a posteriorly directed notch at its proximal end and was curved anteriorly at its distal end. SL, standard length.

Figure 9

Skeletal deformities of the hemal spine, caudal fin rays, and parhypural bone in a L. gibbosus specimen (69.2 mm SL). SL, standard length.

DOI: https://doi.org/10.26881/oahs-2026.1.22 | Journal eISSN: 1897-3191 | Journal ISSN: 1730-413X
Language: English
Page range: 283 - 299
Submitted on: Jun 13, 2026
Accepted on: Aug 4, 2026
Published on: Sep 9, 2026
Published by: University of Gdańsk
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year

© 2026 Ufuk Gürkan Yıldırım, Osman Çetinkaya, Laith A. Jawad, published by University of Gdańsk
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.