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Registros recuperados: 43
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A new endemic Actinia species (Actiniaria: Actiniidae) from the central Macaronesian Archipelagos Naturalis
Hartog, J.C. den; Ocaña, O..
The presence of some endemic taxa of the genus Actinia from Madeira and the Canary Islands is discussed. A new species, Actinia nigropunctata, is described, and some characters of the poorly known Actinia virgata are discussed. In addition, we discuss the main characters proposed by Schmidt (1971) to distinguish species of Actinia.
Tipo: Article / Letter to the editor Palavras-chave: Actinia; Actiniaria; Actiniidae; Macronesian Archipelagos; Atlantic; 42.79.
Ano: 2003 URL: http://www.repository.naturalis.nl/record/216146
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ACTION RECOPLA - Inventaire et bancarisation des données de Géosciences Marines pour les façades Atlantique, Manche et Méditerranée ArchiMer
Gautier, Emeric; Kerjean, Mathieu; Satra Le Bris, Catherine; Bourillet, Jean-francois.
This report presents the inventory work realized for all the Marine Geoscience dept data acquired on the French continental shelf. It lists the bathymetric, seismic and backscattering data acquired, processed and interpreted in English Channel, Atlantic and Mediterranean. All the maps used for this inventory are available within the GIS "Manche Atlantique" and "Golfe du Lion".
Tipo: Text Palavras-chave: Inventaire; SIG; Manche; Atlantique; Méditerranée; Bathymétrie; Imagerie acoustique; Sismique; Données brutes; Traitées; Interprétées; GeoBIS; Inventory; GIS; Englsih Channel; Atlantic; Mediterranean Sea; Backscatter; Seismic; Raw; Processed; Interpreted data; GeoBIS.
Ano: 2010 URL: http://archimer.ifremer.fr/doc/00014/12558/9426.pdf
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An overview on the use of precautionary approach and tuna management ArchiMer
Fonteneau, Alain; Fromentin, Jean-marc.
This paper develops a critical overview of the various problems and uncertainties faced in tuna stock assessment, management and conservation. This presentation is based on Atlantic tunas, but also on various tuna stocks worldwide. Tuna jisheries management is characterized by major uncertainties in the stock assessment; since these stock assessments are always done only on jishery data which are often biased. Fortunately most tuna stocks are showing a strong resistance to overfishing. These major characteristics of tuna stocks and jisheries, and the bias in the scientific analysis, are presented and discussed. As a result, many of the reference point recommended for the precautionary approach applied to jisheries are often quite inappropriate for tuna...
Tipo: Text Palavras-chave: Tunas; Precautionay approach; Atlantic; Management; Assessment.
Ano: 2000 URL: http://archimer.ifremer.fr/doc/00194/30564/28984.pdf
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Analyses de données halieutiques (séries historiques) sur le thon germon, Thunnus alalunga, en Atlantique Nord-est ArchiMer
Patucca, Audrey.
The works carried out during this course (March-August 2015) alowed to correct the datasets and to study the variation in catches of albacore tuna from 1967 to 2014 (except for the years 1987 to 1990) based on 3 gears: the trolling line, the line with cane and the pelagic trawl. Simultaneously, key ICCAT delivred was provide information to expert groups, with a view to defining fishing quotas. Catches released and fishing effort (defined by the number of vessels and the time spent at sea) have varied considerably over these 50 years, and have been increasing in recent years, after having decreased sharply. Fishing today is concentrated on the edge of the continental shelf, whereas it was very oceanic before. It is mainly juveniles that are caught, while...
Tipo: Text Palavras-chave: Thunnus alalunga; Captures; Atlantique; Pêcheries; Thunnus alalunga; Catch; Atlantic; Fishery.
Ano: 2015 URL: http://archimer.ifremer.fr/doc/00388/49927/50501.pdf
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Atlas des Diatomophycées des côtes françaises et des aires marines adjacentes ArchiMer
Paulmier, Gerard.
This Atlas puts the list of main diatoms from phytoplanktonic collects carried out in the French waters and bordering marine areas. A simple key of genera is set up and listed species are illustrated by photographies obtained with light microscope, and by drawings.
Tipo: Text Palavras-chave: Iconographie list; Mediterranean See; Channel; Atlantic; French coasts; Diatoms; Liste iconographique; Méditerranée; Manche; Atlantique; Côtes françaises; Diatomées; Diatomophycées.
Ano: 1997 URL: http://archimer.ifremer.fr/doc/1997/rapport-2452.pdf
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Baitboat as a tuna aggregating device ArchiMer
Hallier, Jean-pierre; Delgado De Molina, A.
The original baitboat fishing technique using a permanent association between the fishing boat and the tuna school has been developed by the baitboat fleet of Dakar, Senegal and is also in use in the Canary Islands. This new fishing technique, the result of 20 years of improvements still on, has induced a dramatic increase of the catch yields which, in turn, has sustained the survival and even a recent development of the fleet. This technique is based on the aggregating behaviour of tropical tunas. However, it contains a dynamic component which is not found in tuna fishing on drifting or anchored fads. The specifications of the method, its refinement over the years and its main consequences for the fishery are described together with the school exchanges...
Tipo: Text Palavras-chave: Attracting techniques Bait fishing Pole-line fishing Tagging Tuna fisheries Article Geographic Terms: ASE; Atlantic; Canary Is. ASE; Mauritania ASE; Senegal.
Ano: 2000 URL: http://archimer.ifremer.fr/doc/00042/15304/12637.pdf
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Benthic shallow-water hydroids (Cnidaria, Hydrozoa) of the coast of São Sebastião, Brazil, including a checklist of Brazilian hydroids Naturalis
Migotto, A.E..
The paper presents the results of a general survey of the hydroid fauna of the coastal region of the São Sebastião Channel, São Paulo State, Brazil. Intensive collecting in the intertidal and infralittoral zones, from 1984 to 1992, led to the discovery of many species, some of which are small and inconspicuous. Out of 59 species of hydroids (17 athecate and 42 thecate) described and illustrated, three are new records for the Atlantic Ocean, six for the western South Atlantic, and 21 for the Brazilian coast. The medusa stage of Asyncoryne ryniensis and the cnidome of 24 species are described for the first time. The paper also contains a synopsis of the hydroids recorded from the Brazilian coast, the list now including 107 species. Pseudostenotele...
Tipo: Article / Letter to the editor Palavras-chave: Cnidaria; Hydrozoa; Systematics; Distribution; South American fauna; Atlantic; Brazil.; 42.72.
Ano: 1996 URL: http://www.repository.naturalis.nl/record/317585
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Caractérisation biologique et variation des captures de la grande alose (Alosa alosa) par unité d'effort sur le fleuve Adour (Pyrénées Atlantiques, France) ArchiMer
Prouzet, Patrick; Martinet, Jean-pierre; Badia, Jacques.
The study of logbooks from commercial fishermen on the Adour River and commercial samples allowed characterization of the allis shad population (Alosa alosa L.) caught during the period 1988-91. A better knowledge of the influence of hydroclimatic factors (rate of river flow and intensity of tidal coefficient) on the catchability of the species in that never was also obtained. Allis shad are mainly recruited to this fishery from the beginning of April to the end of May: between 78 and 89 % depending on year. Males in the population were on average younger than females. However, at the same age, males were significantly smaller in size and in weight than females. These results reinforce the knowledge already obtained on French stocks in the Loire and...
Tipo: Text Palavras-chave: Alosa alosa; Grande alose ou alose vraie; Clupéidés; Captures; Stock; Pêche; Âge; Débit fluvial; Courant de marée; Atlantique; Alosa alosa; Allis shad; Clupeidae; Catch; Fishing effort; Stock assessment; Age composition; Flow and tidal currents; Atlantic.
Ano: 1994 URL: http://archimer.ifremer.fr/doc/00188/29891/28336.pdf
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Carryover of tembotrione and atrazine affects yield and quality of potato tubers Agronomy
Reis, Marcelo Rodrigues; Aquino, Leonardo Ângelo; Melo, Christiane Augusta Diniz; Silva, Daniel Valadão; Dias, Roque Carvalho.
 Crop rotation improves potato (Solanum tuberosum L.) crops; however, in some cases, it can have some negative effects due to the herbicides previously used in crops under rotation. These effects are the decline in the yield and the appearance of physiological disorders, including cracked tubers, which impair the quality and economic value of the potato. Two field experiments were performed with applications of tembotrione and atrazine, alone or in combination. In the Rio Paranaiba (Minas Gerais State) area, in clay soil, the herbicides were applied at post-emergence in corn (Zea mays L.). After corn harvest and soil preparation, the potatoes were planted. In the Serra do Salitre (Minas Gerais State) area, in the medium texture soil, the herbicides were...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Atlantic; Herbicide; Physiological disorder; Solanum tuberosum.; Matologia.
Ano: 2018 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/35355
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Characterization and standardization of the Atlantic albacore French pelagic trawl fishery ArchiMer
Nikolic, Natacha; Lauretta, Matthew; Patucca, Audrey; Morandeau, Gilles.
We compiled and analysed logbook data from the French trawl albacore fishery covering the period 1991–2015. The dataset comprised catch and effort data for the French fleet operating in the Bay of Biscay and Celtic Sea, as well as spatiotemporal and gear characteristics. Generalized linear modelling was used to model spatial, seasonal, environmental, and gear covariates of fleet CPUE rates. A long-term index of relative abundance is provided that can be integrated into the stock assessment of North Atlantic albacore. The analysis revealed higher albacore CPUE associated with relatively low sea surface temperature and distinct seasonal effects. The derived abundance trend for the French trawl fishery agreed with the estimated time series of stock abundance...
Tipo: Text Palavras-chave: Albacore; Catch; Atlantic; Trawl; Fisheries; Stock.
Ano: 2018 URL: https://archimer.ifremer.fr/doc/00461/57256/59283.pdf
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Comparison of three Gobiidae (Teleostei) life history strategies over their geographical range ArchiMer
Bouchereau, Jl; Guelorget, O.
This article summarizes the latest knowledge on the ecology of three gobies. The authors compile data published by various scientists who carried out their research under different conditions, using a variety of methods for collecting data and processing the results. The relationship between population structure and different environmental conditions was considered for three goby species Pomatoschistus minutus (Pallas, 1770), P. microps (Kroyer, 1838) and Gobius niger Linnaeus, 1758, in different geographical areas, notably the Mediterranean (Gulf of Lions and Adriatic) and cold temperate Atlantic (north of the English Channel) parts. In the three species, the life cycles in the Mediterranean, favoured by the local hydroclimate, are "contracted" (growth is...
Tipo: Text Palavras-chave: Golfe du Lion; Atlantique; Cycles vitaux; Stratégies d'occupation; Gobiidæ; Gulf of Lions; Atlantic; Life cycle; Occupying strategy; Gobiidae.
Ano: 1998 URL: http://archimer.ifremer.fr/doc/00326/43672/43198.pdf
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Distribution patterns of oceanic fishes in the Atlantic Ocean. Selected problems. ArchiMer
Krefft, Gerhard.
Some problems in the geographical distribution of oceanic midwater fishes in the Atlantic Ocean are discussed. Remarkable differences were observed in the latitudinal distribution of mesopelagic fish species in the North Atlantic Ocean. These can be related to the oceanic circulation. The Gulf Stream system gives rise to a discontinuity in the position of the oceanic Polar Front. This front, a sharp bounary between subpolar and subtropical waters, follows the northern edge of the Gulf Stream in the western part of the Ocean. East of about 25 degree W the Polar Front becomes weak and untraceable. Relatively warm, high-saline-water of the North Atlantic Current flows North and northeastward by the spreading of the Mediterranean Intermediate Water. Due to the...
Tipo: Text Palavras-chave: Atlantic; Marine fish; Geographical distribution.
Ano: 1976 URL: http://archimer.ifremer.fr/doc/1976/publication-2000.pdf
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Données sur la reproduction et la taille de première maturité du homard Homarus gammarus d'Iroise et du golfe de Gascogne ArchiMer
Latrouite, Daniel; Leglise, Michel; Raguenes, Gérard.
This paper deals with the lobsters caught by French fishermen off the "Conquet" (Iroise sea) and off "Ile d'Yeu" (Biscay Bay) on the French atlantic coast. The size at first maturity, defined as the size at which 50 % of female are able to reproduce, is deduced from the analysis of size frequency in landings. It is also shown that more than 50 % of the mature female are spawing each year ; the periods of hatching in the natural environment are also established.
Tipo: Text Palavras-chave: Size at maturity; Western Channel; Reproduction; Homarus gammarus; Lobster; Atlantic; Biscay Bay; Iroise sea; Golfe de Gascogne; Iroise; Manche; Taille de maturité; Reproduction; Homarus gammarus; Homard.
Ano: 1981 URL: http://archimer.ifremer.fr/doc/1981/acte-1414.pdf
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Drifting FADs used in tuna fisheries: an ecological trap? ArchiMer
Marsac, F; Fonteneau, Alain; Menard, Frederic.
This paper discusses the hypothesis that small tunas and the various species found in association with drifting fads (such as "mahi-mahi", rainbow runner, wahoo, etc.) may be biologically trapped by such a strong association. Massive seeding of drifting artificial fads was observed worldwide during recent years. In this hypothesis, we suggest that fads may alter some biological characteristics of epipelagic populations associated with them: migration, growth, condition factors, predation and natural mortality. As fads are most often used in the equatorial currents, they tend to exhibit zonal drift. Therefore, the associated populations would be artificially transferred from one part of the ocean to another, when they would show different movement patterns...
Tipo: Text Palavras-chave: Attracting techniques Biology Conservation Fishing Migrations Purse seines Trap fishing Tuna fisheries Article Geographic Terms: A; Atlantic.
Ano: 2000 URL: http://archimer.ifremer.fr/doc/00042/15303/12636.pdf
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Effect of potassium sources on potato tuber yield and chip quality Horticultura Brasileira
Silva,Giovani O; Bortoletto,Antonio C; Carvalho,Agnaldo DF; Pereira,Arione S.
ABSTRACT Many potato producers for fry industry changed from the use of potassium chloride to potassium sulfate, as there is a concept that the use of this source improves tuber quality. The aim of this work was to evaluate the effect of these two potassium sources on yield, specific gravity and chip color of potato chipping cultivars. The experiment was carried out on a Dystrophic Red Latosol, in Canoinhas, Brazil, in spring season 2016. Treatments consisted of two potato cultivars, BRSIPR Bel and Atlantic, and two sources of potassium, chloride and sulfate, applied in the furrow at the planting time, in rates based on soil analysis. Experimental design was a randomized complete block in a split-plot arrangement with four replications. Main plots were...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Solanum tuberosum; Mineral nutrition; Fertilizer; BRSIPR Bel; Atlantic.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362018000300395
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Effets du plan de protection des thonides de l'Atlantique 1998-1999 d'apres les observations faites sur les thoniers senneurs geres par les armements francais ArchiMer
Goujon, Michel; Labaisse-bodilis, C.
In 1998, the French and Spanish tuna-boat owners associations have volentarily reconducted the Atlantic tuna protection plan (also called moratorium) initiated the previous year. This plan which has become an iccat recommendation for 1999, consists mainly in preventing fishing on floating objects (logs) and in having observers on board tuna purse seiners. Data collected by these observers and landing statistics allow to draw preliminary conclusions on some effects of the protection plan, on the fleets and on the Atlantic tuna stocks. Largely respected, the moratorium has led to a spatial redistribution of the fishing effort, an important reduction of the proportion of sets on logs and a decrease of the landings by one third compared to those realised the...
Tipo: Text Palavras-chave: Attracting techniques Fishery management Fishery policy Fishery protection Fishery regulations Purse seining Seiners Tuna fisheries Article Geographic Terms: A; Atlantic.
Ano: 2000 URL: http://archimer.ifremer.fr/doc/00042/15313/12660.pdf
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Eudistoma (Ascidiacea: Polycitoridae) from tropical Brazil Rev. Bras. Zool.
Oliveira,Livia de Moura; Gamba,Gustavo Antunes; Rocha,Rosana Moreira da.
We studied material in collections from coastal intertidal and subtidal tropical waters of the Brazilian states of Paraíba, Pernambuco, Alagoas, Bahia, and Espírito Santo. We identified seven species of Eudistoma, of which two are new to science. Eudistoma alvearium sp. nov: colonies have fecal pellets around each zooid and zooids are 6-8 mm long with seven straight and parallel pyloric tubules; the larval trunk is 0.6 mm long with three adhesive papillae and ten ampullae. Eudistoma versicolor sp. nov: colonies are cushion-shaped, variable in color (blue, purple, brown, light green, gray or white) and zooids have six straight and parallel pyloric tubules; the larval trunk is 0.8 mm long with three adhesive papillae and six ampules. Three species - E....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Atlantic; Colonial ascidians; New species; Taxonomy.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702014000200011
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Evolution et répartition de la capacité physique et de l'effort de pêche des navires français. Estimation de l'adéquation de la capacité utilisée et des possibilités de pêche ArchiMer
Leonardi, Sophie; Leblond, Emilie; Le Blond, Samuel; Marchal, Paul.
Ce document vise à fournir des informations concernant la situation des différents stocks et la capacité des flottilles françaises et communautaires sur ces stocks. Il met à disposition des données permettant de mesurer : 1. l'évolution de la capacité physique de la flotte française. Celle-ci est abordée à travers la puissance nominale totale (kW), la puissance moyenne (kW) et le nombre de navires. L'évolution de ces indicateurs est fournie depuis 1983 pour la façade Mer du Nord – Manche – Atlantique et la façade Méditerranée, depuis 1997 pour les Départements d'Outre Mer (DOM). Dans un premier temps, l'ensemble des navires français inscrits au fichier flotte sont pris en compte. Dans un second temps, seuls les navires actifs sont retenus en distinguant...
Tipo: Text Palavras-chave: Capacité des navires; Effort de pêche; Production; Atlantique; Mer du Nord; Méditerranée; Flotte française; Boat capacity; Fishing effort; Production; Atlantic; North sea; Mediterranean sea; French fleet.
Ano: 2009 URL: http://archimer.ifremer.fr/doc/00001/11213/7587.pdf
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Extreme wave activity during 2013/2014 winter and morphological impacts along the Atlantic coast of Europe ArchiMer
Masselink, Gerd; Castelle, Bruno; Scott, Tim; Dodet, Guillaume; Suanez, Serge; Jackson, Derek; Floc'H, France.
Studies of coastal vulnerability due to climate change tend to focus on the consequences of sea level rise, rather than the complex coastal responses resulting from changes to the extreme wave climate. Here we investigate the 2013/2014 winter wave conditions that severely impacted the Atlantic coast of Europe and demonstrate that this winter was the most energetic along most of the Atlantic coast of Europe since at least 1948. Along exposed open-coast sites, extensive beach and dune erosion occurred due to offshore sediment transport. More sheltered sites experienced less erosion and one of the sites even experienced accretion due to beach rotation induced by alongshore sediment transport. Storm wave conditions such as were encountered during the 2013/2014...
Tipo: Text Palavras-chave: Waves; Storms; Beaches; Atlantic; Europe.
Ano: 2016 URL: https://archimer.ifremer.fr/doc/00606/71852/70473.pdf
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Factors determining the distribution of foraminiferal assemblages in Port Joinville Harbor (Ile d'Yeu, France): the influence of pollution ArchiMer
Debenay, Jean-pierre; Tsakiridis, Erica; Soulard, René; Grossel, Hubert.
Port Joinville harbor is located on an island. Thus, it receives only a few freshwater inputs, contrary to most of the areas where the influence of pollution on foraminiferal assemblages has been studied. The pollution in the harbor mainly results from the boats, including cleaning, painting and outfall of oil and motor-fuel.A total of 59 sediment samples was collected at three sampling periods (November-December 1997, May 1998 and September 1998). These samplings were supplemented by the study of algal flora and macrobenthos and by the study of water circulation by means of six stations where water was collected every hour during a tide cycle. Contaminants were analyzed in the last series of 17 samples. Total assemblages were used for this study. This...
Tipo: Text Palavras-chave: France; Atlantic; Harbor; Pollution; Bioindicators; Foraminifera.
Ano: 2001 URL: http://archimer.ifremer.fr/doc/2001/publication-764.pdf
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