Sílvia Monteiro

University of Aveiro

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José Vingada

Sociedade Portuguesa de Vida Selvagem

Marisa Ferreira

Sociedade Portuguesa de Vida Selvagem

Catarina Eira

University of Aveiro

Hélder Araújo

University of Aveiro

Graham J. Pierce

Instituto de Investigacións Mariñas

Ana Marçalo

University of Algarve

Alfredo López

University of Aveiro

Andreia Pereira

Universidade Estadual de Campinas (UNICAMP)

Isabel Oliveira

Universidade do Porto

Aleksandro S. Da Silva

Universidade do Estado de Santa Catarina

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University of Aveiro

Universidade Federal de Santa Maria

Universidade de São Paulo

Sociedade Portuguesa de Vida Selvagem

University of Lisbon

University of Glasgow

Cambridge University Press

Consejo Superior de Investigaciones Científicas

Instituto Español de Oceanografía

Centre National de la Recherche Scientifique

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Ecologically meaningful marine areas in the southern NE Atlantic: insights from marine predator communities

M. Louzao-Arsuaga J. Valeiras Salvador García‐Barcelona M.Á.R. Fernández Arturo Acero P.

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Major Histocompatibility Complex (MHC) class II sequence polymorphism in long-finned pilot whale (Globicephala melas) from the North Atlantic

Marine Biology Research (2016)

Sílvia Monteiro José Vingada Alfredo López Graham J. Pierce Marisa Ferreira

Determining how intra-specific genetic diversity is apportioned among natural populations is essential for detecting local adaptation and identifying populations with inherently low levels of extant diversity which may become a conservation concern. Sequence polymorphism at two adaptive loci (MHC DRA and DQB) was investigated in long-finned pilot whales (Globicephala melas) from four regions in the North Atlantic and compared with previous data from New Zealand (South Pacific). Three alleles were resolved at each locus, with trans-species allele sharing and higher levels of non-synonymous to synonymous substitution, especially in the DQB locus. Overall nucleotide diversities of 0.49 ± 0.38% and 4.60 ± 2.39% were identified for the DRA and DQB loci, respectively, which are relatively low for MHC loci in the North Atlantic, but comparable to levels previously described in New Zealand (South Pacific). There were significant differences in allele frequencies within the North Atlantic and between the North Atlantic and New Zealand. Patterns of diversity and divergence are consistent with the long-term effects of balancing selection operating on the MHC loci, potentially mediated through the effects of host-parasite coevolution. Differences in allele frequency may reflect variation in pathogen communities, coupled with the effects of differential drift and gene flow.

Balancing selection

Nucleotide diversity

10.1080/17451000.2016.1174266

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PAR volume 140 issue 5 Cover and Back matter

Parasitology (2013)

Xiaohong Huang Yang Xu Guowei Guo Qianqian Lin Zhongfeng Ye

An abstract is not available for this content so a preview has been provided. As you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Content (measure theory)

10.1017/s0031182013000280

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Long-finned pilot whale population diversity and structure in Atlantic waters assessed through biogeochemical and genetic markers

Marine Ecology Progress Series (2015)

Sílvia Monteiro Paula Méndez-Fernández Stuart B. Piertney C.F. Moffat Marisa Ferreira

MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout the JournalEditorsTheme Sections MEPS 536:243-257 (2015) - DOI: https://doi.org/10.3354/meps11455 Long-finned pilot whale population diversity and structure in Atlantic waters assessed through biogeochemical and genetic markers Sílvia S. Monteiro1,2,13,*, Paula Méndez-Fernandez3,14, Stuart Piertney4, Colin F. Moffat5, Marisa Ferreira1,2, José V. Vingada1,2,6, Alfredo López7, Andrew Brownlow8, Paul Jepson9, Bjarni Mikkelsen10, Misty Niemeyer11, José Carlos Carvalho1,2, Graham J. Pierce6,12 1CBMA & Departamento de Biologia, Universidade do Minho, Campus de Gualtar, 4710-047 Braga, Portugal 2SPVS & Departamento de Biologia, Universidade do Minho, Campus de Gualtar, 4720-057 Braga, Portugal 3Littoral Environnement et Sociétés (LIENSs), UMR 7266 CNRS-Université de La Rochelle, 17042 La Rochelle Cedex 01, France 4School of Biological Sciences (Zoology), University of Aberdeen, Aberdeen AB24 2TZ, UK 5Marine Scotland Science, Marine Laboratory, Aberdeen AB11 9DB, UK 6CESAM & Departamento de Biologia, Universidade de Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal 7Coordinadora para o Estudio dos Mamíferos Mariños (CEMMA), 36380 Gondomar, Pontevedra, Spain 8Wildlife Unit, SAC Veterinary Science Division, Drummond Hill, Inverness IV2 4JZ, UK 9UK Cetacean Strandings Investigation Programme, Institute of Zoology, Zoological Society of London, London NW1 4RY, UK 10Museum of Natural History, 100 Tórshavn, Faroe Islands 11International Fund for Animal Welfare (IFAW) Marine Mammal Rescue and Research ProgramYarmouth Port, MA 02675, USA 12Oceanlab, University of Aberdeen, Newburgh, Aberdeenshire AB41 6AA, UK 13Present address: CESAM & Departamento de Biologia, Universidade de Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal 14Present address: Oceanographic Institute of the University of São Paulo, Cidade Universitária, São Paulo 05508-120, SP, Brazil *Corresponding author: s.monteiro@ua.pt ABSTRACT: Integration of ecological and genetic approaches is a particularly powerful strategy to identify natural population diversity and structure over different timescales. To investigate the potential occurrence of population differentiation in long-finned pilot whales Globicephala melas in the North Atlantic, both biogeochemical (fatty acids and stable isotopes) and genetic (mitochondrial DNA) markers were analyzed in animals from 4 regions within the North Atlantic: the northwestern Iberian Peninsula, the United Kingdom, the Faroe Islands and the United States of America. Genetic data revealed strong regional levels of divergence, although analysis of molecular variance revealed no differentiation between the northeastern and northwestern Atlantic. Results from biogeochemical tracers supported previous dietary studies, revealing geographic and ontogenetic dietary variation in pilot whales. Fatty acids revealed ecological differentiation between all regions analyzed, while stable isotopes showed an overlap between some sampling regions. These results suggest that both ecological and genetic factors may drive the levels of pilot whale differentiation in the North Atlantic. The ecological differentiation observed may be related to the exploitation of different foraging niches (e.g. oceanic vs. coastal), which can be highly influenced by prey distributions or oceanographic phenomena. Genetic differentiation may result from historical or contemporary processes or even limited dispersal mediated through the social structure displayed by this species and potential foraging specialization. These results highlight some problems when assessing population structure across multiple markers and the ecological vs. evolutionary timescales over which differences may accumulate. Notwithstanding, the data provide preliminary information about pilot whale diversity and stocks in the North Atlantic, giving essential baseline information for conservation plans. KEY WORDS: Stable isotopes · Fatty acids · Mitochondrial DNA · Marine mammal · Stock structure · Globicephala melas Full text in pdf format Supplementary material PreviousNextCite this article as: Monteiro SS, Méndez-Fernandez P, Piertney S, Moffat CF and others (2015) Long-finned pilot whale population diversity and structure in Atlantic waters assessed through biogeochemical and genetic markers. Mar Ecol Prog Ser 536:243-257. https://doi.org/10.3354/meps11455 Export citation RSS - Facebook - Tweet - linkedIn Cited by Published in MEPS Vol. 536. Online publication date: September 29, 2015 Print ISSN: 0171-8630; Online ISSN: 1616-1599 Copyright © 2015 Inter-Research.

10.3354/meps11455

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Insights into Ommastrephid squid life cycles from fishery and survey catches in the Iberian Peninsula

Sílvia Monteiro Fábio L. Matos Catarina Cavaleiro Ana Moreno J. Valeiras

Peninsula

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Stomach contents analysis of pilot whales (Globicephala melas) from the Portuguese, Galician and Scottish coasts.

Sílvia Monteiro Marisa Ferreira José Vingada Ana Cecilia López Ángela Llavona

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Methods for the extraction of microplastics in complex solid, water and biota samples

Trends in Environmental Analytical Chemistry (2021)

Sílvia Monteiro João Pinto da Costa

10.1016/j.teac.2021.e00151

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PAR volume 141 issue 7 Cover and Back matter

Parasitology (2014)

Naveed Ahmed Khan Ruqaiyyah Siddiqui Joaquín M. Prada Louise Matthews Colette Mair

An abstract is not available for this content so a preview has been provided. As you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Content (measure theory)

10.1017/s0031182014000717

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A straightforward method for microplastic extraction from organic-rich freshwater samples

The Science of The Total Environment (2022)

Sílvia Monteiro Teresa Rocha‐Santos Joana C. Prata Armando C. Duarte Ana V. Girão

The extraction of microplastics from organic-rich freshwater samples is challenging and limited information is available in the literature. This study aims at developing efficient methods for water volume reduction and organic matter removal in freshwater samples, while focusing on the reduction of the economic and environmental costs, maintaining microplastics integrity and avoiding contamination. For the water volume reduction approach, centrifuging freshwater samples (water, sediment, algae, leaves, driftwood, fish tissue) at different speeds (3500, 6000 rpm) and times (5, 10 min) showed that 3500 rpm for 5 min was efficient to settle the mineral and organic material, while preserving the polymers and showing high microplastic recovering rates (93 ± 6%). These recovery rates were significantly higher than the traditional sieving approach (77 ± 22%). The posterior minimal consumption of reagents resulting from the reduction of water volume helped to reduce the economic and environmental costs of the devised methodology, becoming more aligned with green chemistry principles. For biogenic organic matter removal, four digestion solutions were tested on freshwater samples, namely 10% potassium hydroxide, Fenton reagent (30% H2O2 + Fe(II)), 7% and 10% sodium hypochlorite (NaClO), under 3 periods of time (1, 6 and 15 h), at 50 °C. Both 7% and 10% NaClO showed the highest rates of organic matter removal (86 ± 1% and 90 ± 1%, respectively), after 6 h at 50 °C. Exposure of virgin and aged polymers (polyethylene, polypropylene, polystyrene, polyvinyl chloride, nylon, polyethylene terephthalate) to NaClO showed no weight, visual, surface structure, Fourier transform infrared spectra and carbonyl index changes, except for nylon, although not to an extent that affected its identification. This method resulted in high recovery rates of polymers (92 ± 6%). Thus, 7% NaClO at 50 °C for 6 h (or overnight) may be efficiently used for microplastic analysis in organic-rich freshwater samples.

Sodium hypochlorite

Sodium hydroxide

10.1016/j.scitotenv.2022.152941

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Trace elements in loggerhead turtles (Caretta caretta) stranded in mainland Portugal: Bioaccumulation and tissue distribution

Chemosphere (2017)

Lídia Nicolau Sílvia Monteiro Andreia Pereira Ana Marçalo Marisa Ferreira

Trace element

10.1016/j.chemosphere.2017.03.108

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