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  • 11
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    A review on the synonymy of the dinoflagellate genera Oxytoxum and Corythodinium (Oxytoxaceae, Dinophyceae) (2018)
    Schweizerbart
    In:  Nova Hedwigia, 107 (1-2). pp. 141-165.
    Details
    Publication Date: 2021-03-18
    Description: The thecate dinoflagellates of the family Oxytoxaceae are reviewed. The synonymy of the species of the genera Oxytoxum and Corythodinium (= Pyrgidium) is analysed in order to facilitate the identifications. Seventy-one species have been placed in the genus Oxytoxum. Only twentynine species are accepted after a comparison of the original descriptions and recent observations from Mediterranean, Atlantic and Pacific Oceans. Most of the remaining species are considered synonyms of other species of Oxytoxum or placed in Corythodinium or other genera. Species such as O. gladiolus or O. schauinslandii are resucitated as senior synonyms of species more commonly reported in the literature. From the sixteen species placed in Corythodinium, only C. carinatum and C. michaelsarsii are considered synonyms of other congeneric species. Six taxa initially described as species of Oxytoxum are transferred into Corythodinium. The new combinations are C. brunellii comb. nov., C. milneri comb. nov., C. mucronatum comb. nov., C. radiosum comb. nov., C. robustum comb. nov. and C. strophalatum comb. nov. A new species is proposed, C. hasleae sp. nov., for a taxon misidentified as O. milneri.
    Type: Article , PeerReviewed
    Format: text
    DOI: 10.1127/nova_hedwigia/2017/0460
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    OceanRep: Article in a Scientific Journal - peer-reviewed
  • 12
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    Effects of global changes on aquatic ecosystems in Western Europe: role of plankton communities (2007)
    GLOBEC International Project Office
    In:  GLOBEC International Newsletter, 13 (1a). pp. 23-25.
    Details
    Publication Date: 2018-10-11
    Type: Article , NonPeerReviewed
    Format: text
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    OceanRep: Article in a Scientific Journal - without review
  • 13
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    Tidal and annual variability of the population structure of Eurytemora affinis in the middle part of the Seine Estuary during 2005 (2010)
    Elsevier
    In:  Estuarine, Coastal and Shelf Science, 89 (4). pp. 245-255.
    Details
    Publication Date: 2019-09-23
    Description: Annual variability in abundance and population structure of the copepod Eurytemora affinis was studied in the maximum turbidity zone of the Seine Estuary in 2005. An Eulerian sampling strategy was applied monthly from March to July and from September to December. Chlorophyll a and suspended particulate matter (SPM) concentration, copepod abundance and stage distribution, and phytoplankton abundance were measured in sub-surface and near-bottom water during the ebb phase. Total E. affinis abundance was at a maximum in March and April (〉200 × 103 ind. m−3), and decreased from May to September (〈25 × 103 ind. m−3). This decrease corresponds to annual increases in temperature, salinity, chlorophyll a concentration and phytoplankton abundance, which was dominated by large diatoms, and decreases in SPM and river discharge. The phenology observed in 2005 was almost two months earlier compared to previous studies in the 1990s, when E. affinis reached maximum abundance in May and June. The low proportion of nauplii (〈50%) in the population and high abundance of ovigerous females suggests that low recruitment is probably related to anomalously low temperatures in late winter (〈5 °C). Whatever the horizontal position of the population in the estuary, adult and late copepodid stages are distributed in higher salinity than naupliar stages. Overall E. affinis population abundance was driven by parameters that characterize water masses at the tidal scale and by river discharge and chlorophyll a at the annual scale. By integrating the tidal effect, the high-frequency sampling protocol used appears to be optimal for investigating annual variability of planktonic communities in megatidal estuaries.
    Type: Article , PeerReviewed
    Format: text
    DOI: 10.1016/j.ecss.2010.07.010
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    OceanRep: Article in a Scientific Journal - peer-reviewed
  • 14
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    Innovative liquid formulation of digestates for producing a biofertilizer based on Bacillus siamensis: Field testing on sweet pepper (2017)
    Wiley-Blackwell
    Details
    Publication Date: 2017-10-11
    Description: A biofertilizer (BF) based on the plant growth promoting rhizobacterium (PGPR) Bacillus siamensis was produced using anaerobic digestate (AD) as the main ingredient of the growth medium, alongside a carbon source from residual origin. The use of residues for the growth of PGPR reduces the production costs of biofertilizers, but makes an assessment of the possible toxicity of residues for the bacteria or plants necessary. Therefore, the growth medium of PGPR was first optimized using the response surface methodology (RSM), followed by phytotoxicity tests and a field trial of the BF in a sweet pepper ( Capsicum annuum L.) crop at two different locations. AD at 50% dilution, supplemented with 2.3% sugar beet molasses, was the optimum growth medium for producing the BF, with a bacterial concentration of 10 9 cfu mL −1 . In the field trial, the treatments inoculated with BF and fertilized with decreased mineral N (80%) produced significantly better yields per ha than the controls with decreased N (80%) and full N (100%) without BF. This indicates improved efficiency of N use by the crop, as a consequence of the use of BF.
    Print ISSN: 1436-8730
    Electronic ISSN: 1522-2624
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Published by Wiley-Blackwell
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  • 15
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    Theoretical study of the smiles rearrangement in the activation mechanism of proton pump inhibitors (2011)
    Wiley-Blackwell
    Details
    Publication Date: 2011-07-20
    Description: This work describes the conformational behavior and the activation mechanism of timoprazole and substituted prazoles from the most stable conformation to the sulphenic acid. The stability of the conformers can be explained by the presence of hydrogen bonds, stereoelectronic effect because of the lone pair of sulfur atom and the N … C and N … S interactions. The first step of the Smile rearrangement is a nucleophilic addition to benzimidazole by pyridine moiety, which depends on the difference of the electron population of the atoms involved in the attack. The second step produces sulphenic acid by a concerted reaction where breaking of the S–C bond goes along with a proton migration, and is determined by the electron population of the sulfur atom. Copyright © 2011 John Wiley & Sons, Ltd. This work describes the conformational behavior and the activation mechanism of prazoles from the more stable conformation to the sulphenic acid the active molecule which inhibites the proton pump.
    Print ISSN: 0894-3230
    Electronic ISSN: 1099-1395
    Topics: Chemistry and Pharmacology , Physics
    Published by Wiley-Blackwell
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  • 16
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    Sustainability, Vol. 10, Pages 780: Analysis of Flood Risk Due to Sea Level Rise in the Menor Sea (Murcia, Spain) (2018)
    MDPI Publishing
    Details
    Publication Date: 2018-03-13
    Description: Sustainability, Vol. 10, Pages 780: Analysis of Flood Risk Due to Sea Level Rise in the Menor Sea (Murcia, Spain) Sustainability doi: 10.3390/su10030780 Authors: Antonio Martínez-Graña Diego Gómez Fernando Santos-Francés Teresa Bardají José Goy Caridad Zazo This article analyzes the coastal vulnerability and flood risk due to sea level rise in the Menor Sea, Murcia (Spain). The vulnerability has been estimated from Sentinel-2 and Landsat 8 satellite imagery using Remote Sensing techniques. The risk of coastal flooding was calculated based on various time scenarios (X0-current, X1-100 years, X2-500 years, X3-1000 years, X4-Storm, X5-Tsunami). Geographic Information System and Remote Sensing techniques were used to build a regional model to predict changes in the mean sea level for several future scenarios, showing susceptible areas to be flooded. We have included new parameters to the model such as swell, mareal range or neotectonic factors aiming to better adjust it to the local conditions. The results showed a high risk of flooding in the barrier beach and coastal areas of the Menor Sea, with a medium to very high degree of vulnerability for the most populated and touristic areas. The maximum and minimum expected increase of the water sheet for the 100 year scenarios ranged from +4.22 to +5.69 m. This methodology can establish sectors that need structural measures to minimize the impact of the sea level rise occurring due to natural tendency in the short or long term, as well as by extreme events such as storm surges or tsunamis. Furthermore, it can be used in other areas to assist land management decision makers to reduce or mitigate the vulnerability and risk presented against the rise of the sea level.
    Electronic ISSN: 2071-1050
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Published by MDPI Publishing
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  • 17
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    Molecular characterization and morphology of Cochlodinium strangulatum, the type species of Cochlodinium, and Margalefidinium gen. nov. for C. polykrikoides and allied species (Gymnodiniales, Dinophyceae) (2017)
    Details
    Publication Date: 2022-05-25
    Description: © The Author(s), 2017. This is the author's version of the work. It is posted here under a nonexclusive, irrevocable, paid-up, worldwide license granted to WHOI. It is made available for personal use, not for redistribution. The definitive version was published in Harmful Algae 63 (2017): 32-44, doi:10.1016/j.hal.2017.01.008.
    Description: Photosynthetic species of the dinoflagellate genus Cochlodinium such as C. polykrikoides, one of the most harmful bloom-forming dinoflagellates, have been extensively investigated. Little is known about the heterotrophic forms of Cochlodinium, such as its type species, Cochlodinium strangulatum. This is an uncommon, large (~200 μm long), solitary, and phagotrophic species, with numerous refractile bodies, a central nucleus enclosed in a distinct perinuclear capsule, and a cell surface with fine longitudinal striae and a circular apical groove. The morphology of C. polykrikoides and allied species is different from the generic type. It is a bloom-forming species with single, two or four-celled chains, small cell size (25–40 μm long) with elongated chloroplasts arranged longitudinally and in parallel, anterior nucleus, eye-spot in the anterior dorsal side, and a cell surface smooth with U-shaped apical groove. Phylogenetic analysis based on LSU rDNA sequences revealed that C. strangulatum and C. polykrikoides/C. fulvescens formed two distally related, independent lineages. Based on morphological and phylogenetic analyses, the diagnosis of Cochlodinium is emended and C. miniatum is proposed as synonym of C. strangulatum. The new genus Margalefidinium gen. nov., and new combinations for C. catenatum, C. citron, C. flavum, C. fulvescens and C. polykrikoides are proposed.
    Description: F.G. was supported by the Brazilian Conselho Nacional de Desenvolvimento Científico e Tecnológico [grant number BJT 370646/2013–14]. Support for M.L.R. and D.M.A. was provided through the Woods Hole Center for Oceans and Human Health, National Science Foundation [grant number OCE–1314642] and National Institute of Environmental Health Sciences [grant number 1–P01–ES021923–01].
    Keywords: HABs ; Harmful algal blooms ; Molecular phylogenetics ; Red tide ; Toxic Dinoflagellata ; Unarmoured dinoflagellate
    Repository Name: Woods Hole Open Access Server
    Type: Preprint
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  • 18
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    Dinoflagellates Amyloodinium and Ichthyodinium (Dinophyceae), parasites of marine fishes in the South Atlantic Ocean (2018)
    Details
    Publication Date: 2022-05-25
    Description: Author Posting. © The Author(s), 2018. This is the author's version of the work. It is posted here under a nonexclusive, irrevocable, paid-up, worldwide license granted to WHOI. It is made available for personal use, not for redistribution. The definitive version was published in Diseases of Aquatic Organisms 131 (2018): 29-37, doi:10.3354/dao03274.
    Description: The morphology and molecular phylogeny of the parasitic dinoflagellates Ichthyodinium chabelardi and Amyloodinium ocellatum was investigated off Brazil (South Atlantic Ocean). This is the first record of Ichthyodinium and the first molecular data of both parasites from the southern hemisphere. Ichthyodinium chabelardi infected the yolk of eggs of feral populations of Argentine anchovy (Engraulis anchoita; Engraulidae) and Brazilian sardinella (Sardinella brasiliensis; Clupeidae) in different seasons. The SSU rRNA and ITS gene sequences were identical and confirmed Ichthyodinium as a host generalist. The new sequences clustered with the type species I. chabelardi from the North Atlantic and environmental sequences from the Pacific Ocean. A second species from the western Pacific remains undescribed. Amyloodinium ocellatum was isolated from the gills of a cultured cobia fish (Rachycentron canadum) after causing mortality. The SSU rRNA gene sequence of the Brazilian isolate was almost identical to those from the northern hemisphere. This suggests a single species with a widespread distribution, although it is uncertain whether the species has a natural pantropical distribution or is the result of artificial distribution due to the humaninduced fish transport.
    Description: F.G. was supported by the Brazilian Conselho Nacional de Desenvolvimento Científico e Tecnológico [grant number BJT 370646/2013–14].
    Keywords: Fish parasite ; Yolk egg parasite ; Amyloodiniosis ; Marine velvet disease ; Ichthyoplankton infestation ; Dinoflagellata
    Repository Name: Woods Hole Open Access Server
    Type: Preprint
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  • 19
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    País de Mares No. 9, 2020 (2022)
    Ed. Dimar | Bogotá D.C., Colombia
    Details
    Publication Date: 2022-08-17
    Description: Contenido -- Calado vs. Profundidad, actores importantes del río -- Drummond avanza con sus trabajadores y comunidades en tiempos de crisis -- La instrumentación oceanográfica en la consolidación del territorio marítimo -- Se construirán en Colombia nuevos buques para la investigación científica y la seguridad marítima -- Diálogo con la primera mujer jefe del Servicio Hidrográfico Nacional de Colombia. -- El canal interoceánico nivel Atrato-Truandó y las hidroeléctricas del Atrato pueden cambiar la suerte del país. -- Gestión de la Autoridad Marítima Colombiana ante la pandemia por la COVID-19. -- Conpes: Colombia potencia bioceánica sostenible 2030. -- Educación marítima y fluvial 2.0: el reto offshore para el Caribe colombiano -- La importancia de un pensamiento marítimo estratégico en un país bioceánico -- Agenda Dimar -- Batimetría asistida por satélite, complementos para la cartografía batimétrica en el Pacífico colombiano -- Coberturas vegetales asociadas a la franja costera del Valle del Cauca y su importancia ecológica y administrativa -- La microbiología como portal para conocer el grado de contaminación marina en la Antártica -- Dimar en Imágenes -- La navegación electrónica -- Adopción del Código de Estabilidad sin Averías (Código IS, 2008) -- ¿Qué es Pianc? Y la importancia de su fortalecimiento en Colombia -- Servicio meteorológico marino, una necesidad para las funciones de Estado Ribereño -- Las playas, más que un ordenamiento, una oportunidad -- La relevancia del ordenamiento marino-costero en el contexto de la planificación espacial marina en Colombia -- Modelo integrado de gestión de zonas costeras: eje estratégico de las actividades marítimas seguras y sostenibles en las playas turísticas de Cartagena -- Evolución legislativa referente al patrimonio cultural sumergido en Colombia -- #LéxicoDelMar
    Description: Published
    Description: Not Known
    Keywords: Investigación científica ; Puertos ; Seguridad en la navegación ; Hidrocarburos ; Río ; Buque ; Contaminación Marina ; Litorales ; Medio ambiente ; ASFA_2015::C::Contamination ; ASFA_2015::G::Geography ; ASFA_2015::P::Port installations ; ASFA_2015::S::Safety ; ASFA_2015::V::Vessels ; ASFA_2015::I::Information scientists
    Repository Name: AquaDocs
    Type: Book/Monograph/Conference Proceedings
    Format: 108pp.
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  • 20
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    Molecular phylogeny and synonymy of Balechina gracilis comb. nov. (=Gymnodinium gracile), a widespread polymorphic unarmored dinoflagellate (Dinophyceae) (2021)
    Wiley
    Details
    Publication Date: 2022-05-26
    Description: Author Posting. © The Author(s), 2021. This is the author's version of the work. It is posted here by permission of John Wiley & Sons for personal use, not for redistribution. The definitive version was published in Journal of Phycology, doi:10.1111/jpy.13135.
    Description: Gymnodinium gracile, described from the coasts of Denmark in 1881, is one of the first described unarmored dinoflagellates. Individuals which morphologically fit with the original description were isolated from the English Channel (North‐East Atlantic). The SSU rRNA gene sequences were identical to the sequences identified as Balechina pachydermata and Gymnodinium amphora from the Mediterranean Sea and Brazil. We propose the transfer of Gymnodinium gracile into the genus Balechina as B. gracilis comb. nov. These sequences constitute an independent lineage, clustering with numerous environmental sequences from polar to tropical waters. The widespread distribution, the high plasticity in size, shape and coloration and the difficulties in discerning the fine longitudinal striae have contributed to the description of numerous synonyms: Amphidinium vasculum, Balechina pachydermata (=Gymnodinium pachydermatum), Gymnodinium achromaticum, G. abbreviatum, G. amphora, G. dogielii, G. lohmannii (=G. roseum sensu Lohmann 1908), G. situla and Gyrodinium cuneatum (=G. gracile sensu Pouchet 1885).
    Description: F.G. was supported by the convention #2101893310 between CNRS INSU and the French Ministry of Ecology (MTES) for the implementation of the Monitoring Program of the European Marine Strategy Framework directive (MSFD) for pelagic habitats and the descriptor ‘biodiversity’. Samples were collected during the ECOPEL Manche 2018 spring and summer cruises (CNRS-LOG) onboard R/V "Antea" (IRD, Institut de Recherche pour le Développement) in the frame of the cited convention and the CPER ‘Hauts de France’ project MARCO supported by the French state, the ‘Hauts de France’ French Region and the European Regional Development Founds (ERDF).
    Keywords: Dinophyta ; naked Dinoflagellata ; Gymnodiniales ; new combination ; taxonomy ; molecular phylogenetics
    Repository Name: Woods Hole Open Access Server
    Type: Preprint
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