Results 31 to 40 of about 226 (121)

Notes on helminth parasites of tuna fishes (Scombridae) in Brazil

open access: yesRevista Mexicana de Biodiversidad, 2012
Four species of Scombridae from the coast of Rio de Janeiro, southwest Atlantic Ocean were found to be parasitized with species of Didymozoidae (Digenea): Thunnus atlanticus (Lesson) a new host record for Nephrodidymotrema ahi Yamaguti, 1970 ...
Márcia Cristina Nascimento-Justo   +1 more
doaj   +1 more source

A survey of biodiversity informatics: Concepts, practices, and challenges

open access: yesWIREs Data Mining and Knowledge Discovery, Volume 11, Issue 1, January/February 2021., 2021
Biodiversity data has a life‐cycle that involves planning, gathering, quality improvement, documentation through metadata, preservation through publication, discovery and integration, and analysis. This article describes the practices, tools, and challenges in each step of this life‐cycle.
Luiz M. R. Gadelha Jr   +13 more
wiley   +1 more source

Fishery and Biology of Blackfin Tuna Thunnus atlanticus off Northeastern Brazil

open access: yesGulf and Caribbean Research, 2005
Blackfin tuna, Thunnus atlanticus, is the target species of a handline artisanal fishery off northeastern Brazil in September–January, but it is also caught by anglers and as by-catch in industrial fisheries. The population structure, morphometric relationships, mortality, reproduction, and fishery dynamics were studied during 2 fishing seasons (1996 ...
Freire, Katia M.F.   +2 more
openaire   +3 more sources

Pelagic Habitat Partitioning of Late-Larval and Juvenile Tunas in the Oceanic Gulf of Mexico

open access: yesFrontiers in Marine Science, 2020
Tunas are ecologically important in pelagic ecosystems, but due to their high economic value, large-bodied species are overfished. Declines in fishery landings of large-bodied tuna species in the Gulf of Mexico (GoM) are expected to increase fishing ...
Nina M. Pruzinsky   +2 more
doaj   +1 more source

Análisis químico de colágeno en piel de cola de atún (Thunnus atlanticus) en medio ácido

open access: yesRevista ESPAMCIENCIA, 2023
El colágeno es la proteína más abundante de origen animal. Esta investigación se realizó con el objetivo de extraer colágeno funcional de la piel de la cola de atún, se utilizó muestras comerciales de Cumaná, Venezuela. Se optimizó el método de extracción en medio ácido, obteniendo colágeno soluble con una concentración de ácido acético del 1,5% y ...
Shailili Moreno Morales   +3 more
openaire   +1 more source

Thunnus atlanticus

open access: yes, 2014
Thunnus atlanticus (Lesson, 1831) – Blackfin tuna; Albacorinha, ② The species T. atlanticus occurs off the Azores, in the PECS area (41 NM west of the Ocenographer Fracture Zone), MCZ, No. 75623, 35.8133º W, 35.0750º N, 26 Aug. 1984.
Carneiro, Miguel   +3 more
openaire   +2 more sources

Age and growth of blackfin tuna (Thunnus atlanticus) caught under moored fish aggregating devices, around Martinique Island [PDF]

open access: yesAquatic Living Resources, 2004
Daily growth increments measured in the otolith of Thunnus atlanticus were used to estimate the age and growth of individuals, which were sampled from an artisanal fishery operating around fish aggregating devices (FADs) moored off Martinique Island. In this study, 76 otoliths were analysed for fish ranging from 20 to 68 cm fork lengths (FL).
Doray, Mathieu   +2 more
openaire   +2 more sources

Impact of mercury released from permafrost on food safety in Switzerland

open access: yesFood Risk Assess Europe, Volume 2, Issue 4, October 2024.
ABSTRACT Climate change has caused the permafrost to thaw, releasing the previously sequestered mercury into the environment. Mercury has the ability to convert to methylmercury, a bioaccumulative neurotoxin. Exposure occurs in humans through the ingestion of contaminated food and it is associated with adverse health effects.
Louise Ray
wiley   +1 more source

Twenty‐three years of PCR‐based seafood authentication assay development: What have we learned?

open access: yesComprehensive Reviews in Food Science and Food Safety, Volume 23, Issue 4, July 2024.
Abstract Seafood is a prime target for fraudulent activities due to the complexity of its supply chain, high demand, and difficult discrimination among species once morphological characteristics are removed. Instances of seafood fraud are expected to increase due to growing demand.
Maleeka Singh   +5 more
wiley   +1 more source

Age, growth, and mortality of Blackfin Tuna in the Gulf of Mexico

open access: yesMarine and Coastal Fisheries, Volume 16, Issue 3, June 2024.
Abstract Objective An otolith‐based aging approach was used to evaluate age and growth relationships, sexual dimorphism in growth, and derive mortality estimates for Blackfin Tuna Thunnus atlanticus in the Gulf of Mexico (GOM). Methods Blackfin Tuna (n = 395) were sampled from recreational fisheries and aged from 0 to 13 years, representing an increase
E. M. Gutierrez   +6 more
wiley   +1 more source

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