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Registros recuperados: 29
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A rare and unusual new bittiine genus with two new species from the South Pacific (Cerithiidae, Gastropoda) ArchiMer
Strong, Ellen E.; Bouchet, Philippe.
A new genus, Limatium gen, n., and two new species, L. pagodula sp, n, and L. aureum sp, n. are described, found on outer slopes of barrier reefs and fringing reefs in the South Pacific. They are rare for cerithiids, which typically occur in large populations. The two new species arc represented by 108 specimens sampled over a period of 30 years, only 16 of which were collected alive. Three subadults from the Philippines and Vanuatu likely represent a third species. In addition to their rarity, Limatium species arc atypical for cerithiids in their smooth, polished, honey to golden brown shells with distinctive white fascioles extending suture to suture. The radula presents a unique morphology that does not readily suggest an affinity to any of the...
Tipo: Text Palavras-chave: Bittiinae; New genus; New species; Marine; DNA.
Ano: 2018 URL: https://archimer.ifremer.fr/doc/00494/60615/64101.pdf
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Accelerated ageing of polyurethanes for marine applications ArchiMer
Davies, Peter; Evrard, Guy.
Polyurethanes are frequently used in underwater applications. They are required to resist the marine environment over long periods of immersion but the multiplicity of resin formulations makes material selection difficult. Accelerated tests are essential to guarantee long term integrity. This paper presents results from an experimental study in which polyurethane samples of two hardnesses, 40 and 90 Shore A, have been subjected to immersion in artificial sea water for periods up to two years at temperatures from 50 to 100 degrees C. In parallel samples have been immersed at sea in the Brest Estuary for up to five years. Mechanical properties have been measured on tensile specimens after ageing. The accelerated test results and FTIR analysis indicate that...
Tipo: Text Palavras-chave: Accelerated test; Sea water; Ageing; Marine; Polyurethane.
Ano: 2007 URL: http://archimer.ifremer.fr/doc/2007/publication-2822.pdf
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Analysis on the Development of Low Carbon Marine Economy AgEcon
Cao, Wang.
From the perspective of low carbon economy, the paper analyzes the factors that influencing the development of low carbon economy. It is showed that the damage of marine ecological environment results in the low ability of oceans in absorbing green gas; environmental pollution leads to lowering capacity of ocean to deal with the wastes; development of related marine industries brings deterioration of marine environment; changes of climate threat the healthy development of marine economy. The paper points out the development routines of marine low carbon economy: accelerating the innovation of energy techniques, exploring marine renewable green energies; planning scientifically and strengthening the protection and repairmen of marine environment; developing...
Tipo: Journal Article Palavras-chave: Marine; Low carbon economy; Emission of green gas; Sustainable development; China; Agribusiness.
Ano: 2011 URL: http://purl.umn.edu/108474
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Assessing causal links in fish stock–recruitment relationships ArchiMer
Pierre, Maud; Rouyer, Tristan; Bonhommeau, Sylvain; Fromentin, Jean-marc.
Understanding whether recruitment fluctuations in fish stock arise from stochastic forcing (e.g. environmental variations) rather than deterministic forces (e.g. intrinsic dynamics) is a long standing question with important applied consequences for fisheries ecology. In particular, the relationship between recruitment, spawning stock biomass and environmental factors is still poorly understood, even though this aspect is crucial for fisheries management. Fisheries data are often short, but arise from complex dynamical systems with a high degree of stochastic forcing, which are difficult to capture through classic modelling approaches. In the present study, recent statistical approaches based on the approximation of the attractors of dynamical systems are...
Tipo: Text Palavras-chave: Causality; Forecasting models; Marine.
Ano: 2018 URL: https://archimer.ifremer.fr/doc/00408/51930/52555.pdf
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Cabra reticulata sp. nov. (Dinophyceae), a new sand-dwelling dinoflagellate from the Atlantic Ocean ArchiMer
Chomerat, Nicolas; Nezan, Elisabeth.
A new sand-dwelling dinoflagellate species, Cabra reticulata sp. nov., is described from sandy habitats in the south of Brittany (northwestern France). This new species possesses the characteristics of the 'unusual' genus, Cabra Murray et Patterson. The thecal plate formula is Po Pt 3' 1a 4'' 'x' 3c ?s 5''' 1'''' (or alternatively interpreted as Po Pt 4' 0a 4'' 'x' 3c ?s 5''' 1''''). Because of the strong lateral compression, cells of C. reticulata are frequently seen laterally and have a polygonal shape, with three prominent antapical pointed flanges and a dorsal spine in the anterior part of the hypotheca. The cingulum is ascending and incomplete. The thecal surface is ornamented with strong reticulations forming polygonal areolae, which differs from C....
Tipo: Text Palavras-chave: Taxonomy; Sand dwelling; Roscoffia; Protists; Podolampaceae; Marine; Dinophyceae; Benthic.
Ano: 2009 URL: http://archimer.ifremer.fr/doc/2009/publication-6804.pdf
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Community structure of metazoan parasites of Trichiurus lepturus (Perciformes, Trichiuridae) from Ubatuba, Southwestern Atlantic Ocean,Brazil Biological Sciences
Bueno, Glauco Baptista Franco; Universidade de Taubaté; Cenci de Aguiar, Julio Cesar; Centro Nacional de Pesquisa e Conservação de Peixes Continentais - CEPTA/ICMBio; Santos, Sonia Maria Cursino dos; Universidade de Taubaté.
This study aimed to evaluate the community structure of metazoan parasites of Trichiurus lepturus from Ubatuba, Brazil. Fifty fish were collected in February 2008. Our statistical approach consisted in evidencing the most interesting infrapopulations, in order to try to understand the relationship between the variables regulating them. This analysis was based on a Poisson generalized linear model (GLM) developed with selection of variables using the corrected Akaike Information Criterion (AICc) and AIC weight. Larvae of Anisakidae and Lecithochirium microstomum seems to play an important role on this host-parasite system and their abundances were influenced by the ontogenetic shift in feeding of the hosts. Changes in characteristics of hosts included a...
Tipo: Info:eu-repo/semantics/article Palavras-chave: 2.00.00.00-6; 2.13.00.00-3 South America; Marine; Parasite ecology 2.05.00.00-9.
Ano: 2014 URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/21908
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Complete genome sequence and whole-genome phylogeny of Kosmotoga pacifica type strain SLHLJ1T from an East Pacific hydrothermal sediment ArchiMer
Jiang, Lijing; L'Haridon, Stephane; Jebbar, Mohamed; Xu, Hongxiu; Alain, Karine; Shao, Zongze.
Kosmotoga pacifica strain SLHLJ1T is a thermophilic chemoorganoheterotrophic bacterium isolated from a deep-sea hydrothermal sediment. It belongs to the physiologically homogeneous Thermotogaceae family. Here, we describe the phenotypic features of K. pacifica together with its genome sequence and annotation. The chromosome has 2,169,170 bp, organized in one contig. A total of 1897 candidate protein-encoding genes and 177 RNA genes were identified. The 16S rRNA gene sequence of this strain is distantly related to sequences of some relatives classified in the same genus (K. olearia 7.02% and K. shengliensis 7.83%), with dissimilarity percentages close to the threshold generally described for genus delineation. Nevertheless, the percentage of conserved...
Tipo: Text Palavras-chave: Marine; Hydrothermal vent; Thermotogales; Chemoorganoheterotroph; Thermophile.
Ano: 2017 URL: http://archimer.ifremer.fr/doc/00371/48191/48324.pdf
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Development of a generic decision-support tool for identifying potentially invasive aquatic taxa: AS-ISK ArchiMer
Copp, Gordon H.; Vilizzi, Lorenzo; Tidbury, Hannah; Stebbing, Paul D.; Trakan, Ali Serham; Miossec, Laurence; Goulletquer, Philippe.
Electronic decision-support tools are now an essential component of government strate gies to battle non-native species, with taxon-specific, paper-based risk analysis schemes often being replaced by taxon-generic tools. This study reports on the development of a decision-support tool for aquatic species, the Aquatic Species Invasiveness Screening Kit (AS-ISK), which replaces five taxon-specific toolkits for amphibians, freshwater and marine fish and invertebrates (FISK, MFISK, FI-ISK, MI-ISK, Amph-ISK). Adapted from Pheloung et al.’s. Weed Risk Assessment (WRA), the “-ISK” toolkits were also “self-automated workbooks” in Excel® VisualBasic® architecture of the ’WRA. In creating AS-ISK, we incorporated the conceptual approach (questions and guidance) of...
Tipo: Text Palavras-chave: Risk analusis; Marine; Brackish; FISK; Ruditapes philippinarum.
Ano: 2016 URL: https://archimer.ifremer.fr/doc/00357/46770/46638.pdf
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Development of emergency response tools for accidental radiological contamination of French coastal areas ArchiMer
Duffa, Celine; Du Bois, Pascal Bailly; Caillaud, Matthieu; Charmasson, Sabine; Couvez, Celine; Didier, Damien; Dumas, Franck; Fievet, Bruno; Morillon, Mehdi; Renaud, Philippe; Thebault, Herve.
The Fukushima nuclear accident resulted in the largest ever accidental release of artificial radionuclides in coastal waters. This accident has shown the importance of marine assessment capabilities for emergency response and the need to develop tools for adequately predicting the evolution and potential impact of radioactive releases to the marine environment. The French Institute for Radiological Protection and Nuclear Safety (IRSN) equips its emergency response centre with operational tools to assist experts and decision makers in the event of accidental atmospheric releases and contamination of the terrestrial environment. The on-going project aims to develop tools for the management of marine contamination events in French coastal areas. This should...
Tipo: Text Palavras-chave: Decision support; Marine; Modelling; Radioecology; Nuclear accident.
Ano: 2016 URL: http://archimer.ifremer.fr/doc/00270/38118/36480.pdf
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Données économiques maritimes françaises 2005 ArchiMer
Kalaydjian, Regis; Daures, Fabienne; Gaignon, Jean-louis; Girard, Sophie; Guyader, Olivier; Matte, Isabelle; Mongruel, Remi; Perez, Jose; Thebaud, Olivier.
The report presents a survey of marine related activities in France, highlighting recent past trends, present situation and future outlook. The commercial sector includes marine resource exploitation, manufacturing branches and services. The public sector includes the Navy, State services, environmental protection and research. A summary identifies the main factors in the development of marine activities.
Tipo: Text Palavras-chave: Outlook; Employment; Value added; Marine; Economy; Perspectives; Emploi; Valeur ajoutée; Maritime; Économie.
Ano: 2006 URL: http://archimer.ifremer.fr/doc/2006/rapport-3919.pdf
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Données économiques maritimes françaises 2016 ArchiMer
Kalaydjian, Regis; Girard, Sophie.
The "French Maritime Economic Data" report is periodically published by Ifremer since 1997. It presents an economic assessment of the French maritime activities, their position in the national economy and in the world competition, as well as the significance of non market public services. Maritime activities in the industrial sector are assessed using a standard metrics to facilitate the periodical update of the report: turnover, gross value added, employment, number of enterprises, exports. These indicators are expressed at national level. The public sector is described by annual budgets, number of staff and personnel costs, broken down into the different public policy functions. Regional indicators are provided on activities whenever relevant and...
Tipo: Text Palavras-chave: Economie; Concurrence; Croissance; Emploi; Environnement; Europe; France; Industrie; Marin; Maritime; Valeur ajoutée; Secteur public; Services.; Economy; Competition; Employment; Environment; Europe; France; Growth; Industry; Marine; Maritime; Public sector; Value added; Services..
Ano: 2017 URL: http://archimer.ifremer.fr/doc/00388/49962/50614.pdf
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Feeding biology of a predatory and a facultatively predatory nematode (<i>Enoploides longispiculosus</i> and <i>Adoncholaimus fuscus</i>) OMA
Moens, T.; Verbeeck, L.; Vincx, M..
This paper reports on the feeding biology of a predatory and of a facultatively predatory nematode, <i>Enoploides longispiculosus</i> and <i>Adoncholaimus fuscus</i>, respectively. Both species represent genera which are common and abundant in the littoral of the North Sea and in adjacent estuaries. Observations on the foraging behaviour of both species are given, and for the former species, a range of prey from its natural habitat is identified. Respiration was determined using a polarographic oxygen electrode technique and compared to consumption determined as predation rates on the monhysterid nematode <i>Diplolaimelloides meyli</i>. The daily C-loss due to respiration accounted for 15% of the measured C-consumption...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Carbon; Communities; Communities; Communities; Ecology; Flat; Food; Marine; Meiobenthos; Water.
Ano: 1999 URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7336
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French marine economic data 2009 ArchiMer
Kalaydjian, Regis; Daures, Fabienne; Girard, Sophie; Van Iseghem, Sylvie; Levrel, Harold; Mongruel, Remi.
The report presents a survey of marine related activities in France and an assessment of their economic weight in terms of value added and employment estimates. A brief outline of the recent past and present economic situation of these activities, and of their position on international markets is given. The survey presents the commercial sector, including marine resource exploitation, manufacturing activities and services, followed by the public sector, including the Navy, state intervention at sea, coastal environment protection and marine sciences. A summary gives an overall estimation of marine value added and employment.
Tipo: Text Palavras-chave: Economy; Marine; Value added; Employment; Industry; Services.
Ano: 2010 URL: http://archimer.ifremer.fr/doc/00050/16145/13628.pdf
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Gnathostomulida from the (sub)tropical northwestern Atlantic Naturalis
Sterrer, Wolfgang.
Sterrer, W., 1997. Gnathostomulida from the (sub)tropical northwestern Atlantic. Studies Nat. Hist. Caribbean Region 74, Amsterdam, 1998: 1-178. Based on 1035 specimens of Gnathostomulida from 106 samples collected during the period 1968-1997 in the tropical and subtropical northwestern Atlantic, 45 species are presented, including one new family (Paucidentulidae nov. fam.), two new genera ( Vampyrognathia nov. gen. and Paucidentula nov. gen.), and 13 new species: Haplognathia belizensis, Cosmognathia aquila, Pterognathia alcicornis, P. pygmaea, Mesognatharia eastwardiae, Onychognathia rhombocephala, Vampyrognathia horribilis, V. minor, Paucidentula anonyma, Gnathostomula uncinata, Triplignathia (?) bathycola, Austrognatharia medusifera, and A. stirialis.
Tipo: Article / Letter to the editor Palavras-chave: New species.; Marine; Free-living; Meiofauna; Taxonomy new genera.
Ano: 1998 URL: http://www.repository.naturalis.nl/record/503188
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High evolutionary potential of marine zooplankton Naturalis
Peijnenburg, K.T.C.A.; Goetze, E..
Open ocean zooplankton often have been viewed as slowly evolving species that have limited capacity to respond adaptively to changing ocean conditions. Hence, attention has focused on the ecological responses of zooplankton to current global change, including range shifts and changing phenology. Here, we argue that zooplankton also are well poised for evolutionary responses to global change. We present theoretical arguments that suggest plankton species may respond rapidly to selection on mildly beneficial mutations due to exceptionally large population size, and consider the circumstantial evidence that supports our inference that selection may be particularly important for these species. We also review all primary population genetic studies of open ocean...
Tipo: Article / Letter to the editor Palavras-chave: Adaptation; Climate change; Marine; Oceanic; Selection; Zooplankton; 42.72; 42.94.
Ano: 2013 URL: http://www.repository.naturalis.nl/record/470572
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Interactions between polystyrene microplastics and marine phytoplankton lead to species-specific hetero-aggregation ArchiMer
Long, Marc; Paul-pont, Ika; Hegaret, Helene; Moriceau, Brivaela; Lambert, Christophe; Huvet, Arnaud; Soudant, Philippe.
To understand the fate and impacts of microplastics (MP) in the marine ecosystems, it is essential to investigate their interactions with phytoplankton as these may affect MP bioavailability to marine organisms as well as their fate in the water column. However, the behaviour of MP with marine phytoplanktonic cells remains little studied and thus unpredictable. The present study assessed the potential for phytoplankton cells to form hetero-aggregates with small micro-polystyrene (micro-PS) particles depending on microalgal species and physiological status. A prymnesiophycea, Tisochrysis lutea, a dinoflagellate, Heterocapsa triquetra, and a diatom, Chaetoceros neogracile, were exposed to micro-PS (2 μm diameter; 3.96 μg L−1) during their growth culture...
Tipo: Text Palavras-chave: Polystyrene; Microplastic; Aggregates; Microalgae; Marine; Phytoplankton.
Ano: 2017 URL: https://archimer.ifremer.fr/doc/00389/50016/50735.pdf
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Inventory of benthic marine and estuarine algae and Cyanobacteria for Tabasco, México Biota Neotropica
Mendoza-González,Angela Catalina; Mateo-Cid,Luz Elena; García-López,Deisy Yazmin.
Abstract Studies of benthic marine and estuarine algae as well as Cyanobacteria are in their early stages in the littoral of the state of Tabasco. Sixty seven taxa of seaweeds are currently known from Tabasco. The inventory of these organisms was made based on samples obtained in six localities, three of them in marine and three in estuarine environments. We found 147 species and subspecific taxa with Rhodophyta having the greatest number with 84, followed by Chlorophyta 44, and finally Phaeophyceae 19. In addition, the 26 species of Cyanobacteria collected are recorded for the first time for the coast of Tabasco since there are no previous reports. The presence of 115 species of benthic marine and estuarine algae is reported for the first time for...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Tabasco; Mexico; New records; Marine; Estuarine; Algae; Cyanobacteria.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032017000400303
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Marine fauna of hard substrata of the Cleaver bank and Dogger bank Naturalis
Schrieken, N.; Gittenberger, A.; Coolen, J.W.P.; Lengkeek, W..
As most of the sea bottom in the Dutch part of the North Sea consists of sand, marine fauna that live in association with hard substrates are rarely monitored. We report here on the results of a species inventory in June 2011 done by scuba-diving while focusing on a wreck on the Dogger Bank and on rocky bottoms on the Cleaver Bank. This resulted in various new records of species for the Dutch part of the North Sea. This result appeared for a large part linked to the added value of monitoring with scuba-divers. It is therefore concluded that scuba-divers should be used in addition to the more traditional monitoring methods in which dredges and grabs are used, if one aims at getting an accurate view of the biodiversity present in marine regions like the...
Tipo: Article / Letter to the editor Palavras-chave: Biodiversity; Hard substrata; Netherlands; Marine; Scuba-diving; 42.75.
Ano: 2013 URL: http://www.repository.naturalis.nl/record/586863
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Marine microbial biodiversity, bioinformatics and biotechnology (M2B3) data reporting and service standards ArchiMer
Ten Hoopen, Petra; Pesant, Stephane; Kottmann, Renzo; Kopf, Anna; Bicak, Mesude; Claus, Simon; Deneudt, Klaas; Borremans, Catherine; Thijsse, Peter; Dekeyzer, Stefanie; Schaap, Dick M. A.; Bowler, Chris; Gloeckner, Frank Oliver; Cochrane, Guy.
Contextual data collected concurrently with molecular samples are critical to the use of metagenomics in the fields of marine biodiversity, bioinformatics and biotechnology. We present here Marine Microbial Biodiversity, Bioinformatics and Biotechnology (M2B3) standards for "Reporting" and "Serving" data. The M2B3 Reporting Standard (1) describes minimal mandatory and recommended contextual information for a marine microbial sample obtained in the epipelagic zone, (2) includes meaningful information for researchers in the oceanographic, biodiversity and molecular disciplines, and (3) can easily be adopted by any marine laboratory with minimum sampling resources. The M2B3 Service Standard defines a software interface through which these data can be...
Tipo: Text Palavras-chave: Data standard; Marine; Molecular; Biodiversity; Microbial; Bioinformatics; Reporting; Interoperability.
Ano: 2015 URL: http://archimer.ifremer.fr/doc/00311/42266/41588.pdf
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Overview of eutrophication indicators to assess environmental status within the European Marine Strategy Framework Directive ArchiMer
Ferreira, Joao G.; Andersen, Jesper H.; Borja, Angel; Bricker, Suzanne B.; Camp, Jordi; Da Silva, Margarida Cardoso; Garces, Esther; Heiskanen, Anna-stiina; Humborg, Christoph; Ignatiades, Lydia; Lancelot, Christiane; Menesguen, Alain; Tett, Paul; Hoepffner, Nicolas; Claussen, Ulrich.
In 2009, following approval of the European Marine Strategy Framework Directive (MSFD, 2008/56/EC), the European Commission (EC) created task groups to develop guidance for eleven quality descriptors that form the basis for evaluating ecosystem function. The objective was to provide European countries with practical guidelines for implementing the MSFD, and to produce a Commission Decision that encapsulated key points of the work in a legal framework. This paper presents a review of work carried out by the eutrophication task group, and reports our main findings to the scientific community. On the basis of an operational, management-oriented definition, we discuss the main methodologies that could be used for coastal and marine eutrophication assessment....
Tipo: Text Palavras-chave: Eutrophication; Chlorophyll; Dissolved oxygen; Harmful algae; Marine; Coastal; Assessment methods; Europe; Marine Strategy Framework Directive; Water Framework Directive.
Ano: 2011 URL: http://archimer.ifremer.fr/doc/00039/15055/12609.pdf
Registros recuperados: 29
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