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| Registros recuperados: 126 | |
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| Peristeraki, Panagiota; Bitetto, Isabella; Carbonara, Pierluigi; Carlucci, Roberto; Certain, Gregoire; De Carlo, Francesco; Gristina, Michele; Kamidis, Nikos; Pesci, Paola; Stagioni, Marco; Valls, María; Tserpes, George. |
| Mean temperature (MTC) and mean trophic level (MTL) spatiotemporal patterns of MEDITS survey catches were examined in 13 geographic statistical areas (GSAs) of the Mediterranean between 1994 and 2016. The study aimed to detect changes in the demersal community structure related to anthropogenic impacts. A generalized additive modelling approach was used to examine the effects of year and GSA on the MTC and MTL indexes and on bottom temperature by haul. For the MTC index, the year was significant only in 4 GSAs, while for MTL it was significant in 5. Higher MTC values were observed in central and eastern areas. Bottom temperature increased after 2010, and also from west to east and from north to south. Our results indicate that the recently observed... |
| Tipo: Text |
Palavras-chave: Mean temperature of the catch; Trophic level; Bottom temperature; Trends; Mediterranean; Fishing pressure; Sea warming; Climate change. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00489/60054/63332.pdf |
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| De Dominicis, M.; Bruciaferri, D.; Gerin, R.; Pinardi, N.; Poulain, P. M.; Garreau, Pierre; Zodiatis, G.; Perivoliotis, L.; Fazioli, L.; Sorgente, R.; Manganiello, C.. |
| Validation of oil spill forecasting systems suffers from a lack of data due to the scarcity of oil slick in-situ and satellite observations. Drifters (surface drifting buoys) are often considered as proxy for oil spill to overcome this problem. However, they can have different designs and consequently behave in a different way at sea, making it not straightforward to use them for oil spill model validation purposes and to account for surface currents, waves and wind when modelling them. Stemming from the need to validate the MEDESS4MS (Mediterranean Decision Support System for Marine Safety) multi-model oil spill prediction system, which allows access to several ocean, wave and meteorological operational model forecasts, an exercise at sea was carried out... |
| Tipo: Text |
Palavras-chave: Oil spill modelling; Drifters; Oil slick; Mediterranean; Met-ocean models. |
| Ano: 2016 |
URL: http://archimer.ifremer.fr/doc/00326/43724/43175.pdf |
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| Farrugio, Henri. |
| The ancient French traps for fishing tunas were installed all along the Côtes de Provence and the Côte d´Azur, up to the Italian border and they pertained to rich noblemen. These traps caught, as by-catch, considerable amounts of other migratory species (small tunas and Mackerels) and also some dolphins and sharks. These traps practically disappeared in the XX century due to technological development in the field of coastal maritime navigation and to other trades relation to fishing. |
| Tipo: Text |
Palavras-chave: French traps; Mediterranean; Historic. |
| Ano: 2012 |
URL: http://archimer.ifremer.fr/doc/00192/30278/28741.pdf |
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| D’ortenzio, Fabrizio; Taillandier, Vincent; Claustre, Hervé; Prieur, Louis Marie; Leymarie, Edouard; Mignot, Alexandre; Poteau, Antoine; Penkerc’h, Christophe; Schmechtig, Catherine Marie. |
| The necessity of wide, global-scale observing systems for marine biogeochemistry emerged dramatically in the last decade. A global network based on Biogeochemical (BGC) Argo floats is considered to be one of the most promising approaches for reaching this goal. As a first step, pilot studies were encouraged to test the feasibility of a global BGC-Argo array, to consolidate the methods and practices under development, and to set up the array’s characteristics. A pilot study in The Mediterranean Sea—deemed a suitable candidate for a test case because it combines a relatively large diversity of oceanic BGC conditions in a reduced open-ocean basin—was consequently approved as a part of the “Novel Argo ocean Observing System” (NAOS) project, a French national... |
| Tipo: Text |
Palavras-chave: BGC-Argo floats; Mediterranean; Bioregions; Ocean color; Physical biological interactions. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00618/73031/72145.pdf |
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| Cossa, Daniel; De Madron, Xavier Durrieu; Schafer, Jorg; Guedron, Stephane; Marusczak, Nicolas; Castelle, Sabine; Naudin, Jean-jacques. |
| Ocean margins are focal regions in terms of mercury (Hg) exchanges between the continent and the open sea. The aim of this paper is to describe the distribution and partition of Hg between the gaseous, dissolved and particulate phases in the waters of the Northwestern Mediterranean (NWM) margin, in order to assess the Hg sources and exchanges within the continuum between the continental shelf (Gulf of Lions) and the open sea (Northern Gyre). Mean (± standard deviation) of total Hg species (HgT) concentrations in unfiltered water samples were 1.52 ± 1.00 pmol L-1 (n=36) in the inner shelf, 1.09 ± 0.15 pmol L-1 (n=30) along the slope, and 1.10 ± 0.13 pmol L-1 (n=99) in the Northern Gyre. The dissolved phase (<0.45µm) average concentrations were 0.80 ±... |
| Tipo: Text |
Palavras-chave: Mercury; Ocean margin; Coastal area; Mediterranean. |
| Ano: 2018 |
URL: http://archimer.ifremer.fr/doc/00384/49563/50055.pdf |
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| Peharda, Melita; Thebault, Julien; Markulin, Kresimir; Schone, Bernd R.; Janekovic, Ivica; Chauvaud, Laurent. |
| High-resolution stable-isotope ratio data (delta O-18, delta O-18) were used to study growth strategies of two bivalve species, Pecten jacobaeus (calcitic shell) and Glycymeris pilosa (aragonitic shell) from the North Adriatic Sea. The principal objectives of this study were to identify the period of the year when the growth line is formed in the shell of two target species, to identify the main growing season of these two species, to identify the environmental drivers of shell growth, and to evaluate the potential applicability of delta O-18 and delta O-18 values for the reconstruction of environmental variability. Samples were collected from the North Adriatic Sea by commercial bean trawl (P. jacobaeus, December 2013 and January 2014, N = 4) and SCUBA... |
| Tipo: Text |
Palavras-chave: Sclerochronology; Mediterranean; Adriatic; Stable-isotope ratio geochemistry; Bivalve shells. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00615/72753/74907.pdf |
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| Masse, Hl. |
| At a time when there is a great deal of talk of the degradation of the coastal environment and of biodiversity being threatened, we felt it would be of interest to sample the macrofauna of five sites at five metres depth in well sorted fine sand at a thirty-year interval (1966-1996), using the same techniques. Four seasonal samplings provided comparative data at each site on the species richness (S), density (N) and biomass (B). The S values are comparable and even on the increase at two stations. Nevertheless, we observed a general tendency towards decline in the relative abundance of the crustacean group. From the quantitative point of view (N and B), the changes observed would appear to result from the impact of clearly identifiable human pressure, such... |
| Tipo: Text |
Palavras-chave: Méditerranée; Macrofaune des sables; Variations; Long-terme; Mediterranean; Sand-macrofauna; Changes; Long-term. |
| Ano: 2000 |
URL: http://archimer.ifremer.fr/doc/00325/43572/44053.pdf |
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| Monaco, André; Peruzzi, Stefano. |
| The papers presented in this volume represent only a small part of the results obtained within the scope of the first integrated programme concerning the Mediterranean Sea. The latter is considered as a downscaled model of the ocean system, and a regional sea for the targeted projects supported by the European Commission. Whatever the domain is, the variability of the system appeared as a major feature. Consequently, this theme has been selected, among the main initial objectives, as the central subject of this volume. Spatial and temporal variabilities are considered, at different scales and at different (water, particles, sediment, trophic) levels of the marine ecosystem. In the hereafter contributions, one will find the long-term (millenar, secular and... |
| Tipo: Text |
Palavras-chave: Climate; Pluridisciplinary; Variability; Mediterranean; Marine system. |
| Ano: 2002 |
URL: http://archimer.ifremer.fr/doc/2002/publication-783.pdf |
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| Cossa, Daniel; Buscail, R.; Puig, P.; Chiffoleau, Jean-francois; Radakovitch, Olivier; Jeanty, G.; Heussner, S.. |
| Continental margins receive natural and anthropogenic trace elements (TEs) from direct atmospheric deposition of aerosols onto the sea surface and from advection of riverine suspended particles and/or resuspended sediments from the continental shelf/slope. When the margin is incised by submarine canyons, as for example in the Northwestern Mediterranean Sea, most of these particles are preferentially transferred via these topographic features towards their final repositories in the abyssal plain. The Gulf of Lions (GoL) shelf receives the largest particulate riverine input to the Western Mediterranean, with its associated chemical contaminants originating from the industrialized and urbanized Rhone Valley. Sediments samples (grabs, cores and moored traps)... |
| Tipo: Text |
Palavras-chave: Trace-element; Sediment; Canyon; Continental margin; Mediterranean. |
| Ano: 2014 |
URL: http://archimer.ifremer.fr/doc/00188/29971/28424.pdf |
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| Duclerc, Jean; Bertrand, Jacques. |
| The laying out of an offshore site in the gulf of Lion has been realized by immersion of concrete structures in 1985. Two complementary studies have been conducted in order to estimate the impact of such artificiel reef. Gillnet fishery surveys have been done in the vicinity of the structures and also on a control site. Moreover the local profcssional fishery has been investigated for two periods of 16 months, one berore and one arter the reef immersion. The results of the gillnet surveys have already been submitted to publication and the present study displays the investigations concerning the local fishery. It has been shown by the gillnet fishing surveys that the artificial reef led in their very close vicinity to variations in marine species... |
| Tipo: Text |
Palavras-chave: Récifs artificiels; Méditerranée; Pêcheries; Artificial reef; Mediterranean; Fisheries. |
| Ano: 1993 |
URL: https://archimer.ifremer.fr/doc/00003/11416/7959.pdf |
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| Gentil, Mathieu; Many, Gaël; Durrieu De Madron, Xavier; Cauchy, Pierre; Pairaud, Ivane; Testor, Pierre; Verney, Romaric; Bourrin, François. |
| The recent integration of Acoustic Doppler Current Profilers (ADCPs) onto underwater gliders changes the way current and sediment dynamics in the coastal zone can be monitored. Their endurance and ability to measure in all weather conditions increases the probability of capturing sporadic meteorological events, such as storms and floods, which are key elements of sediment dynamics. We used a Slocum glider equipped with a CTD (Conductivity, Temperature, Depth), an optical payload, and an RDI 600 kHz phased array ADCP. Two deployments were carried out during two contrasting periods of the year in the Rhone River region of freshwater influence (ROFI). Coastal absolute currents were reconstructed using the shear method and bottom tracking measurements, and... |
| Tipo: Text |
Palavras-chave: Glider; Optics; Acoustics; Satellite; Coastal hydrodynamics; Suspended particulate matter; Particulate fluxes; Gulf of Lions; Mediterranean. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00648/76039/76962.pdf |
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| Arnaud-haond, Sophie; Candeias, Rui; Serrao, Ester A.; Teixeira, Sara. |
| Polymorphic microsatellites were developed for the invasive green algae Caulerpa taxifolia using next generation DNA sequencing. Results showed a limited rate of microsatellites for the amount of sequences, possibly explaining failure of previous attempts for microsatellite development through classical methods. Eight polymorphic loci were selected that exhibited polymorphism and a null or negligible rate of amplification failure. The number of alleles per locus ranged from two to seven. The reconstruction of Multi Locus Genotypes and the heterozygosity and departure from Hardy-Weinberg equilibrium confirmed the influence of clonal reproduction and showed the usefulness of this set of markers to successfully discriminate clonal lineages and analyze the... |
| Tipo: Text |
Palavras-chave: Caulerpa taxifolia; Algae; Invasion; Mediterranean; Queensland; New South Wales; Seagrass. |
| Ano: 2013 |
URL: http://archimer.ifremer.fr/doc/00126/23720/21598.pdf |
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| Registros recuperados: 126 | |
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