B. B. Collette and C. E. Nauen: FAO Species Catalogue. Vol. 2, Scombrids of the World. An Annotated and Illustrated Catalogue of Tunas, Mackerels, Bonitos and Related Species Known to Date. = FAO Fisheries Synopsis No 125. Vol. 2‐Mit 81 figs., 137 pp. Rome: FAO 1983. ISBN‐Nr. 92‐5‐101381‐0

Kühlmann, D. H. H.

doi:10.1002/iroh.19850700518

Intl Review of Hydrobiology

1985

DOI: 10.1002/iroh.19850700518

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B. B. Collette and C. E. Nauen: FAO Species Catalogue. Vol. 2, Scombrids of the World. An Annotated and Illustrated Catalogue of Tunas, Mackerels, Bonitos and Related Species Known to Date. = FAO Fisheries Synopsis No 125. Vol. 2‐Mit 81 figs., 137 pp. Rome: FAO 1983. ISBN‐Nr. 92‐5‐101381‐0

D. H. H. Kühlmann¹

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A Validated Methodology for Genetic Identification of Tuna Species (Genus Thunnus)

Viñas

Tudela²

2009

PLoS ONE

122

118

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BackgroundTuna species of the genus Thunnus, such as the bluefin tunas, are some of the most important and yet most endangered trade fish in the world. Identification of these species in traded forms, however, may be difficult depending on the presentation of the products, which may hamper conservation efforts on trade control. In this paper, we validated a genetic methodology that can fully distinguish between the eight Thunnus species from any kind of processed tissue.MethodologyAfter testing several genetic markers, a complete discrimination of the eight tuna species was achieved using Forensically Informative Nucleotide Sequencing based primarily on the sequence variability of the hypervariable genetic marker mitochondrial DNA control region (mtDNA CR), followed, in some specific cases, by a second validation by a nuclear marker rDNA first internal transcribed spacer (ITS1). This methodology was able to distinguish all tuna species, including those belonging to the subgenus Neothunnus that are very closely related, and in consequence can not be differentiated with other genetic markers of lower variability. This methodology also took into consideration the presence of introgression that has been reported in past studies between T. thynnus, T. orientalis and T. alalunga. Finally, we applied the methodology to cross-check the species identity of 26 processed tuna samples.ConclusionsUsing the combination of two genetic markers, one mitochondrial and another nuclear, allows a full discrimination between all eight tuna species. Unexpectedly, the genetic marker traditionally used for DNA barcoding, cytochrome oxidase 1, could not differentiate all species, thus its use as a genetic marker for tuna species identification is questioned.

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A Validated Methodology for Genetic Identification of Tuna Species (Genus Thunnus)

Viñas

Tudela²

2009

PLoS ONE

122

118

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Age and growth of skipjack tuna (Katsuwonus pelamis) in the western equatorial Atlantic based on dorsal spines analysis

2022

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The skipjack tuna (Katsuwonus pelamis) is a migratory pelagic fish occurring in all tropical and subtropical oceans of the world. Due to its economic importance and the unbridled increase in fishing efforts, stocks may collapse if this resource is not managed properly. The present study aimed to estimate growth parameters from different growth models based on annual rings from the dorsal spines of skipjack tuna caught in the western equatorial Atlantic. The first dorsal spine of each individual was extracted to produce cross-sections with 0.6 to 0.8 mm in thickness. We used a multi-model approach to select the best growth model based on the Akaike information criterion (AIC). Two hundred seventy individuals were analyzed, with an average length of 49.58 ± 7.72 cm. The von Bertalanffy growth model had the best fit to the data, but the Gompertz and Logistic models also had essential support. Average asymptotic length ( ) was estimated to be 114.05 and 102.63 cm for observed and back-calculated data, respectively. The dorsal spines are indeed efficient tools for estimating growth parameters and multi-model inference is a novel approach for adjusting discrepancies that likely result from a single-model approach.

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Cephalopoda (Mollusca) of the Colombian Caribbean Sea

Kommritz¹

2021

Bol. Investig. Mar. Costeras

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The cephalopod fauna in Colombian Caribbean waters is poorly known. This work gives an overview of the species found in the area. For elaborating this list, the most relevant natural history collections where the material of the area’s is material is deposited were consulted, identifications were verified compared with type material and original descriptions and redescriptions. In the Colombian Caribbean Sea 48 cephalopod species are present in different environments, represented in 17 families and 33 genera. There is one Spirula, seven sepiolids, 21 squids, and 19 octopod species. Most animals are from shallow coastal waters.

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B. B. Collette and C. E. Nauen: FAO Species Catalogue. Vol. 2, Scombrids of the World. An Annotated and Illustrated Catalogue of Tunas, Mackerels, Bonitos and Related Species Known to Date. = FAO Fisheries Synopsis No 125. Vol. 2‐Mit 81 figs., 137 pp. Rome: FAO 1983. ISBN‐Nr. 92‐5‐101381‐0

Cited by 11 publications

References 0 publications

A Validated Methodology for Genetic Identification of Tuna Species (Genus Thunnus)

A Validated Methodology for Genetic Identification of Tuna Species (Genus Thunnus)

Age and growth of skipjack tuna (Katsuwonus pelamis) in the western equatorial Atlantic based on dorsal spines analysis

Cephalopoda (Mollusca) of the Colombian Caribbean Sea

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