Results 41 to 50 of about 15,357 (229)
ABSTRACT Bigeye tuna (Thunnus obesus) is among the most prized tuna species sustaining fisheries worldwide. However, information on the feeding habits for the species is mostly restricted to the size range harvested by commercial fisheries. In this study, we report the diet composition of juvenile bigeye tuna schooling near the surface at night in the ...
Juliano Lauser Coletto+5 more
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In this paper, Copiatestes filiferus (Leukart, in Sars, 1885) Gibson and Bray, 1977 (Digenea) and Gorgorhynchus sp. (Acanthocephala) parasites of Hemilutjanus macrophthalmos (Teleostei), both parasites are new records from Peru and the fish is a new host.
Manuel Tantaleán V, Marianne Lefevre
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Abstract Ten species of Barbatula are recognised in Europe, west of the Urals: B. barbatula, B. caucasica, B. hispanica, B. leoparda, B. pironae, B. quignardi, B. sturanyi, B. taurica, B. vardarensis and B. zetensis, with B. caucasica and B. taurica formerly considered subspecies of B. barbatula.
Bárbara B. Calegari+6 more
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Growth of annular zones in otoliths of brown trout from the alpine lakes Litlosvatn and Kollsvatn on western part of the Hardangervidda mountain plateau have been studied during the period 2004–2021, concurrent with recordings of accumulated snow in ...
Reidar Borgstrøm
doaj
The precision of growth estimates based on fish scales often remains uncertain because of withinindividual variation in scale size and scale patterns, and also due to measurement errors.
Tormod Haraldstad+3 more
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A fossil rostrum fragment of a large teleost fish from the Upper Cretaceous of Northern Italy reveals remarkable anatomical convergences with Cenozoic and Recent billfishes (marlins, swordfishes, and akin). The extinct group Plethodidae independently acquired a long snout, micro‐teeth, and oil‐gland sinuses well before the evolution of true billfishes.
Giovanni Serafini+5 more
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The drawings, detailed pictures, precise descriptions and measurements that characterize otoliths must be made available for studies in various areas, including taxonomy, phylogeny, ecology, fisheries, paleontology, diversity, predator-prey relationships
Carmen Lucia Del Bianco Rossi-Wongtschowski+5 more
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An isothermal workflow for low‐cost and PCR‐free field‐based community metabarcoding
Abstract DNA metabarcoding has revolutionized our ability to monitor ecosystems. However, the method is still rarely used in developing countries where resources are limited and fieldwork is challenging. To overcome this limitation, we designed a comprehensive workflow allowing rapid community metabarcoding with minimum, self‐manufacturable equipment ...
Amadeus Plewnia+2 more
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Cottus gobio (Linnaeus, 1758), a new fish-species in Nord-Trøndelag County, Norway
Frilund GE, Koksvik J, Rikstad A and Berger HM. 20092009. Cottus gobio (Linnaeus, 1758), a new fish-species in Nord-Trøndelag County, Norway. Fauna Norvegica 29: 55-60.
Gunn E. Frilund+3 more
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Abstract The killifish genus Aphaniops consists of nine species distributed in Eastern Africa and the Middle East. However, distinguishing these species from each other based on morphological traits is challenging. Here we investigate the utility of otoliths (sagittae) in distinguishing between A. dispar, A. ginaonis, A. hormuzensis, A.
Eleni A. Charmpila+2 more
wiley +1 more source