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

