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Aerial Imagery Reveals Abnormal Stingray, Taeniura lymma (Myliobatiformes: Dasyatidae), in the Central Red Sea.

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Title: Aerial Imagery Reveals Abnormal Stingray, Taeniura lymma (Myliobatiformes: Dasyatidae), in the Central Red Sea.
Authors: Ciocănaru, Ioana Andreea1,2 (AUTHOR) ioanaandreea.ciocanaru@kaust.edu.sa, Nieuwenhuis, Brian Owain1,2 (AUTHOR), Lubambo Ostrovski, Raquel1,2 (AUTHOR), Cochran, Jesse E. M.1 (AUTHOR), McIvor, Ashlie J.3 (AUTHOR), Jones, Burton H.1,2 (AUTHOR)
Source: Ecology & Evolution (20457758). Dec2024, Vol. 14 Issue 12, p1-6. 6p.
Subject Terms: Pectoral fins, Stingrays, Human abnormalities, Symmetry, Optical disks
Abstract: While morphological abnormalities have been widely reported in batomorphs, ontogenetic deformities of the posterior pectoral fin are rare. In this paper, we present a bluespotted ribbontail ray, Taeniura lymma (Forsskål, 1775), with symmetrically deformed posterior pectoral fins. The specimen was observed through aerial imagery on a coastal sandflat in the central Red Sea (22.30° N, 39.09° E). The bilateral symmetry of the deformity indicates it likely has a genetic base. However, lacking access to the specimen, the ultimate cause of the abnormality remains uncertain. The incomplete disk closure did not seem to affect survival, as the specimen reached a disk width of 22 cm, well above the regional size at sexual maturity. Our observations constitute both the first report of a morphological abnormality in T. lymma and the first record of a batomorph with a symmetrically deformed posterior pectoral fin. In this paper, we present a bluespotted ribbontail ray, Taeniura lymma (Forsskål, 1775), with symmetrically deformed posterior pectoral fins. The specimen was observed through aerial imagery on a coastal sandflat in the central Red Sea (22.30° N, 39.09° E). Our observations constitute both the first report of a morphological abnormality in T. lymma and the first record of a batomorph with a symmetrically deformed posterior pectoral fin. [ABSTRACT FROM AUTHOR]
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Abstract:While morphological abnormalities have been widely reported in batomorphs, ontogenetic deformities of the posterior pectoral fin are rare. In this paper, we present a bluespotted ribbontail ray, Taeniura lymma (Forsskål, 1775), with symmetrically deformed posterior pectoral fins. The specimen was observed through aerial imagery on a coastal sandflat in the central Red Sea (22.30° N, 39.09° E). The bilateral symmetry of the deformity indicates it likely has a genetic base. However, lacking access to the specimen, the ultimate cause of the abnormality remains uncertain. The incomplete disk closure did not seem to affect survival, as the specimen reached a disk width of 22 cm, well above the regional size at sexual maturity. Our observations constitute both the first report of a morphological abnormality in T. lymma and the first record of a batomorph with a symmetrically deformed posterior pectoral fin. In this paper, we present a bluespotted ribbontail ray, Taeniura lymma (Forsskål, 1775), with symmetrically deformed posterior pectoral fins. The specimen was observed through aerial imagery on a coastal sandflat in the central Red Sea (22.30° N, 39.09° E). Our observations constitute both the first report of a morphological abnormality in T. lymma and the first record of a batomorph with a symmetrically deformed posterior pectoral fin. [ABSTRACT FROM AUTHOR]
ISSN:20457758
DOI:10.1002/ece3.70411