Characterization of the lipid composition and natural antioxidants in the liver oil of Dasyatis brevis and Gymnura marmorata rays

Navarro-García, Gerardo; Pacheco‐Aguilar, Ramón; Bringas-Alvarado, Lorena; Ortega-García, Jesús

doi:10.1016/j.foodchem.2003.10.023

Cited by 46 publications

(59 citation statements)

References 33 publications

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“…This value was higher than the one reported by NAVARRO-GARCIA et al (2004) for Gymnura marmota and Dasyatis brevis with EPA + DHA content of 18 and 16%, respectively. MENDEZ et al (1996) reported for cod liver oil, 16.1% of these PUFA´s, oil considered as an excellent source of ω-3 fatty acids.…”

Section: Fatty Acid Contentcontrasting

confidence: 73%

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Natural antioxidants in the stability of ray liver oil

et al. 2017

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Section: Fatty Acid Contentcontrasting

confidence: 73%

“…Result agrees with PARAZO et al (1998), who reported a high selectivity of α-isomers in fish liver oil. NAVARRO-GARCIA et al (2004) reported α-tocopherol contents in different ray species from 1.6 to 64.9mg 100g -1 . Table 1 shows the effect of antioxidant concentration on the stability of EPA and DHA in R. bonasus liver oil.…”

Section: Tocopherol Contentmentioning

confidence: 99%

Natural antioxidants in the stability of ray liver oil

et al. 2017

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“…Within the Myliobatiformes, the Urotrygonidae (round rays) is a family characterized by a well-developed caudal fin, the outer anterior margin of pectorals are continuous alongside of head, and most species show one or more long poisonous spines on tail. Round rays are mainly found in lagoons and estuaries Miyake 1986, Platell et al 1998), and the majority of them are benthic and live in soft soils of estuaries and bays (McEachran and Carvalho 2002), within tropical and temperate waters (Fischer et al 1995). Although most batoids feed on similar prey species, the food categories can be considerably different between species and even between conspecifics, having sex or size-biased differences in feeding behaviour .…”

Section: Introductionmentioning

confidence: 99%

“…Particularly, the blotched stingray, Urotrygon chilensis (Günther, 1872), is distributed from the Gulf of California to Chile (McEachran and Carvalho 2002). It has a subrhombic disc, which is wider than long, having straight anterior margins, and rounded lateral and posterior margins that cover half of pelvic fins.…”

Section: Introductionmentioning

confidence: 99%

“…Although there is no directed fishery for this species, it is commonly caught incidentally by trawl and bottom gillnet fisheries subsequently diminishing its population (Andrew and Pepperell 1992, Dulvy and Reynolds 2002, McEachran and Carvalho 2002, Fischer et al 2012, Dulvy et al 2014, and recently, artisanal fisheries in Mexico have become focused on batoid species due to the depletion of shark catches. Since the blotched stingray is a predator, the removal of this species from an ecosystem may affect multiple trophic interactions, thus changing the community composition (Stevens et al 2000).…”

Section: Introductionmentioning

confidence: 99%

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Trophic ecology of the blotched stingray, Urotrygon chilensis (Elasmobranchii: Myliobatiformes: Urotrygonidae), in three areas of the Mexican Pacific

Oñate‐González¹,

Amezcua²,

Buszkiewicz³

et al. 2017

Acta Ichthyol. Piscat.

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Background. There is a current global consensus that to achieve a sustainable use of fisheries resources, management of every organism subject to exploitation is required rather than only those targeted directly by the fisheries. Further understanding the feeding habits of the species in the ecosystem as well as the predator-prey relationships and their trophic levels is crucial. Batoids occupy an important ecological niche as benthic predators in estuaries and bays. There is no directed fishery for the blotched stingray, Urotrygon chilensis (Günther, 1872), but it is commonly caught incidentally by trawl and bottom gillnets fisheries subsequently diminishing its population. Recently, artisanal fisheries in Mexico have become focused on batoid species due to the depletion of shark catches, although there are few studies on its biology and ecology. Materials and methods. We analysed the trophic ecology of the blotched stingray in two main areas from the Mexican Central Pacific to understand the species' diet and detect possible differences throughout fishing areas using stomach content analysis. We analysed the overlap in diets between areas and the trophic level at each area. Results. We analysed 423 specimens and found 15 prey groups. Representatives of the two crustacean higher taxa-Cladocera and Peracarida were the most important food items in the north area, while the crustacean family Penaeidae was the most important in the south area, having no significant overlap between areas (Cλ = 0.33). The estimated trophic position for the blotched stingray was 3.51-3.56 in both areas, and according to the Levin's index, the range of the trophic niche breadth for the blotched stingray was 0.059 and 0.039, which indicates that it is a specialist predator. Conclusion. The blotched stingray is a specialist predator that can adapt to different prey depending on which organisms are present in the ecosystem. It is necessary to continue with these types of studies for the other species inhabiting the area, in addition to monitoring fisheries landings, fishing effort, and variations in biotic and abiotic factors in the area over a long period. However, this study outlines an approach for reaching the ultimate goal of sustainable exploitation of marine resources on an ecosystem level.

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Vertebrates: Fish, Reptiles, and Mammals

Kornprobst

2014

Encyclopedia of Marine Natural Products

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The article contains sections titled: Fish Squalene, Fatty Acids and Other Lipid Derivatives of Chondrichthyes and Agnatha Bile Steroids of Sharks and Hagfish: Scymnol, Myxinol, and Derivatives Squalamine and Other Aminosterols of Sharks Migratory Pheromones and Sex Hormones of Lampreys Inhibition of Angiogenesis by Shark Cartilage: Neovastat® General Account of Lipid Derivatives of O steichthyes Venoms and Toxins: Defense Substances of Fish Antifreeze Proteins of Polar Fish Antimicrobial Peptides and Other Proteins Sulfated Glycosaminoglycans of the Extracellular Matrix Reptiles Mammals Lipid Composition and Residues of Chlorinated Pesticides Ambergris, Ambrein, and Ambrox

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Characterization of the lipid composition and natural antioxidants in the liver oil of Dasyatis brevis and Gymnura marmorata rays

Cited by 46 publications

References 33 publications

Natural antioxidants in the stability of ray liver oil

Natural antioxidants in the stability of ray liver oil

Trophic ecology of the blotched stingray, Urotrygon chilensis (Elasmobranchii: Myliobatiformes: Urotrygonidae), in three areas of the Mexican Pacific

Vertebrates: Fish, Reptiles, and Mammals

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