Consecutive parthenogenetic births in a spotted eagle ray Aetobatus narinari

2015 ◽  
Vol 88 (2) ◽  
pp. 741-745 ◽  
Author(s):  
T. S. Harmon ◽  
T. Y. Kamerman ◽  
A. L. Corwin ◽  
A. B. Sellas
Keyword(s):  
Spotted Eagle Ray

Kin structure and social organization in the spotted eagle ray, Aetobatus narinari, off coastal Sarasota, FL

2014 ◽  
Vol 97 (9) ◽  
pp. 1057-1065 ◽  
Author(s):  
Jennifer Newby ◽  
Tanya Darden ◽  
Kim Bassos-Hull ◽  
Andrew M. Shedlock
Keyword(s):  
Social Organization ◽  
Kin Structure ◽  
Spotted Eagle Ray

Meningitis associated with dracunculid nematodes in a spotted eagle ray ( Aetobatus narinari )

2020 ◽  
Vol 43 (6) ◽  
pp. 711-713
Author(s):  
Michelle M. Dennis ◽  
Jun Wei Alric Yeow ◽  
Brittani Nicolaci ◽  
Saundra H. Sample ◽  
Mark A. Freeman
Keyword(s):  
Spotted Eagle Ray

Comparison between the feeding habits of spotted eagle ray (Aetobatus narinari) and their potential prey in the southern Gulf of Mexico

2018 ◽  
Vol 99 (3) ◽  
pp. 661-672 ◽  
Author(s):  
F. Serrano-Flores ◽  
J.C. Pérez-Jiménez ◽  
I. Méndez-Loeza ◽  
K. Bassos-Hull ◽  
M.J. Ajemian
Keyword(s):  
Gulf Of Mexico ◽  
Prey Species ◽  
Prey Availability ◽  
Feeding Habits ◽  
Small Scale ◽  
Potential Prey ◽  
Important Prey ◽  
Ecological Aspects ◽  
Southern Gulf Of Mexico ◽  
Spotted Eagle Ray

In the southern Gulf of Mexico, the spotted eagle ray (Aetobatus narinari) is the second most frequently caught batoid in small-scale fisheries off Campeche. Ecological aspects of this ray are unknown in this region, hampering the understanding of the relationship between its distribution and prey availability in the fishing area. In order to study the feeding habits of this batoid and characterize its potential prey in the study area, stomachs and intestines of 154 specimens (68 females and 86 males) were analysed. The results indicated that A. narinari near Campeche is a specialist and selective predator that feeds mainly on gastropods (92.7% IRI), with no significant differences in the diet found between sexes, size groups, or between stomach and intestine contents. In addition, the results indicated that the most important prey species in the diet were among the most common benthic species in three of the four sampling transects positioned in or adjacent to fishing areas for rays. These most important prey species were Strombus pugilis (53.33% IRI) and Americoliva reticularis (25.6% IRI). Other prey species included Lobatus costatus (5.6% IRI) and Petrochirus diogenes (3.6% IRI). This study suggests that this widely distributed ray species feeds in Campeche's coastal waters and that the study of its potential prey increases the understanding of ecological aspects of the species, which emphasizes the added importance of monitoring fishery impacts on prey species (e.g. the conch fishery off Campeche) to help support integrated assessment and management of fisheries.

scholarly journals A new species of Acanthobothrium (Eucestoda: Onchobothriidae) in Aetobatus cf. narinari (Myliobatidae) from Campeche, México

2018 ◽  
Vol 27 (1) ◽  
pp. 66-73 ◽  
Author(s):  
Erick Rodríguez-Ibarra ◽  
Griselda Pulido-Flores ◽  
Juan Violante-González ◽  
Scott Monks
Keyword(s):  
New Species ◽  
Atlantic Ocean ◽  
The State ◽  
Quintana Roo ◽  
Undescribed Species ◽  
Marine Waters ◽  
Western Atlantic ◽  
First Report ◽  
Spotted Eagle Ray ◽  
A New Species

Abstract The helminthological examination of nine individuals of Aetobatus cf. narinari (spotted eagle ray; raya pinta; arraia pintada) revealed the presence of an undescribed species of cestode of the genus Acanthobothrium. The stingrays were collected from four locations in México: Laguna Términos, south of Isla del Carmen and the marine waters north of Isla del Carmen and Champotón, in the State of Campeche, and Isla Holbox, State of Quintana Roo. The new species, nominated Acanthobothrium marquesi, is a category 3 species (i.e, the strobila is long, has more than 50 proglottids, the numerous testicles greater than 80, and has asymmetrically-lobed ovaries); at the present, the only category 3 species that has been reported in the Western Atlantic Ocean is Acanthobothrium tortum. Acanthobothrium marquesi n. sp. can be distinguished from A. tortum by length (26.1 cm vs. 10.6 cm), greater number of proglottids (1,549 vs. 656), a larger scolex (707 µm long by 872 µm wide vs. 699 µm long by 665 µm wide), larger bothridia (626 µm long by 274 µm wide vs. 563 µm long by 238 µm wide). This is the first report of a species of Acanthobothrium from the Mexican coast of the Gulf México.

MANAGEMENT OF WOUNDS IN A LOGGERHEAD SEA TURTLE (CARETTA CARETTA) CAUSED BY TRAUMATIC BYCATCH INJURY FROM THE SPINES OF A SPOTTED EAGLE RAY (AETOBATUS NARINARI)

2014 ◽  
Vol 45 (2) ◽  
pp. 428-432 ◽  
Author(s):  
Marisa Bezjian ◽  
James F. X. Wellehan ◽  
Michael T. Walsh ◽  
Eric Anderson ◽  
Elliott Jacobson
Keyword(s):  
Caretta Caretta ◽  
Sea Turtle ◽  
Loggerhead Sea Turtle ◽  
Spotted Eagle Ray

Taxonomy of Some Tetraphyllidean Cestodes From Elasmobranch Fishes

1987 ◽  
Vol 35 (4) ◽  
pp. 343 ◽  
Author(s):  
SA Butler
Keyword(s):  
The Common ◽  
Spotted Eagle Ray ◽  
Elasmobranch Fishes

Rhinebothrium pearsoni, sp nov., is described from Banks' shovelnosed ray, Aptychotrema banksii (Muller & Henle). PhyNobothrium orectolobi, sp. nov., is described from the wobbegong, Orectolobus maculatus (Bonnaterre). Anthobothrium amuleturn, sp nov., is described from the common shovel- nosed ray, Rhinobatos armatus (Gray). Pedibothrium ottleyi, sp. nov., is described from the zebra shark, Stegostoma tigrinum (Pennant), and the genus Pedibothrium Linton, 1909, is emended. Calliobothrium creeveyae, sp. nov., is described from the school shark, Galeorhinus australis (Macleay). Polypocephalus moretonensis, sp nov., is described from the estuary stingray, Dasyatis fluviorum Ogilby. Tylocephalum carnpanulatum, sp. nov., is described from the shark ray, Rhina ancylostomus Bloch & Schneider. Also described are a species of Balanobothrium Hornell, 1912, from S. tigrinum; a species of Cathetocephalus Dailey & Overstreet, 1973, and a species of Discocephalum Linton, 1890, from the black-tip shark, Carcharhinus spallanzani (Le Sueur), and Hornellobothrium cobraformis Shipley & Hornell, 1906, from the spotted eagle-ray, Aetobatis narinari (Euphrasen).

Diet and reproduction in the white-spotted eagle ray Aetobatus narinari from Queensland, Australia and the Penghu Islands, Taiwan

2010 ◽  
Vol 61 (11) ◽  
pp. 1278 ◽  
Author(s):  
V. Schluessel ◽  
M. B. Bennett ◽  
S. P. Collin
Keyword(s):  
Biological Data ◽  
Hermit Crabs ◽  
Group Index ◽  
Ductus Deferens ◽  
Important Prey ◽  
Disc Width ◽  
Dietary Shifts ◽  
Spotted Eagle Ray ◽  
Penghu Islands ◽  
Management And Conservation

Aetobatus narinari, a circumglobal batoid, is subjected to increasing fishing pressures, especially throughout South-east Asia. However, its management and protection is complicated by the lack of relevant life history information. It appears to be a late-maturing, long-lived stingray with a size-at-maturity of ∼130 and >150 cm in ventral disc width for males and females respectively. Like other myliobatids, A. narinari is a matrotrophic viviparous species exhibiting lipid histotrophy as indicated by trophonemata. Only the left ovary and uterus are functional. The presence of mature sperm in the testes, collecting ducts, epididymis and ductus deferens coincided with the estimated time of parturition and mating. Catches indicated an unbiased sex ratio. Aetobatus narinari is a hard-prey specialist that feeds mainly on gastropods, molluscs and hermit crabs (Diogenidae). Molluscs comprised numerically and gravimetrically the most important prey group (Index of Relative Importance (IRI): 85.9% in Australia, 99.9% in Taiwan) and were observed in 83.3% and 100% of stomachs containing food from Australia and Taiwan respectively. Minor dietary shifts from a gastropod–crustacean to a more gastropod–bivalve based diet occurred as body size increased. This study provides vital biological data for the effective management and conservation of A. narinari.

scholarly journals Species Delineation and Evolutionary History of the Globally Distributed Spotted Eagle Ray (Aetobatus narinari)

2009 ◽  
Vol 100 (3) ◽  
pp. 273-283 ◽  
Author(s):  
V. P. Richards ◽  
M. Henning ◽  
W. Witzell ◽  
M. S. Shivji
Keyword(s):  
Evolutionary History ◽  
Species Delineation ◽  
History Of ◽  
Spotted Eagle Ray ◽  
Globally Distributed
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