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| Registros recuperados: 29 | |
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| Jarre, Astrid; Marine Research Institute, University of Cape Town, South Africa; ajarre@gmail.com; Ragaller, Sven M.; Marine Research Institute, University of Cape Town, South Africa; sven.ragaller@gmail.com; Hutchings, Laurence; Marine Research Institute, University of Cape Town, South Africa; larry.hutchings@gmail.com. |
| South Africa's small pelagics fishery is currently the largest in volume and second largest in value in the southern Benguela. It exploits short-lived, small pelagic fishes such as anchovy (for reduction into fish meal and oil) and sardine (for reduction as well as human consumption through canned products), and to a lesser extent redeye round herring and mesopelagics, largely for reduction. We explore the recent history (1940s to present) of the social-ecological system around this fishery. The natural subsystem, at the scales of the ocean environment and the ecosystem, is characterized by high interannual and documented decadal-scale variability. We characterize the human social subsystem at the scales of the fishing industry, legislation, and west... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Anchovy; Coastal communities; Inshore fishery; Marine social-ecological systems; Purse seining; Rock lobster; Small pelagic fishery; South Africa; Southern Benguela; Sardine. |
| Ano: 2013 |
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| Bellier, Edwige; Planque, Benjamin; Petitgas, Pierre. |
| The spatial extent of small pelagic fish spawning habitat is influenced by environmental factors and by the state of the adult population. In return, the configuration of spawning habitat affects recruitment and therefore the future structure of the adult population. Interannual changes in spatial patterns of spawning reflect variations in adult population structures and their environment. The present study describes the historical changes in the spatial distribution of spawning of anchovy (Engraulis encrasicolus) and sardine (Sardina pilchardus) in the Bay of Biscay during two periods: 1967-72 and 2000-2004. Using data from egg surveys conducted in spring, the spatial distributions of anchovy and sardine eggs are characterized by means of geostatistics.... |
| Tipo: Text |
Palavras-chave: Spawning habitat; Spatial patterns; Sardine; Long term changes; Bay of Biscay; Anchovy. |
| Ano: 2007 |
URL: http://archimer.ifremer.fr/doc/2007/publication-2179.pdf |
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| Petitgas, Pierre; Magri Hoeltzener, Stephanie; Lazure, Pascal. |
| Modelling the vertical distribution of fish eggs is important when assessing fish stocks with egg production methods and for monitoring the reproductive potential of fish populations. Fish eggs are passive particles and their vertical distribution is determined by a few parameters such as egg density, egg diameter, wind- and tide-induced turbulence, and vertical hydrographic structure. A one-dimensional vertical biophysical, numerical model was developed which was adapted to the hydrography of shelf seas under the influence of tidal currents, wind-induced circulation, and river discharges. The biological part of the model parameterized the ascent velocity of the egg as a function of egg properties (diameter, density) and water properties (density,... |
| Tipo: Text |
Palavras-chave: Vertical distribution; Sprat; Sardine; Fish egg buoyancy; CUFES; Biophysical coupling; Anchovy. |
| Ano: 2006 |
URL: http://archimer.ifremer.fr/doc/2006/publication-2277.pdf |
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| Brosset, Pablo; Le Bourg, Baptiste; Costalago, David; Banaru, Daniela; Van Beveren, Elisabeth; Bourdeix, Jean-herve; Fromentin, Jean-marc; Menard, Frederic; Saraux, Claire. |
| Since 2008, a severe decrease in size and body condition together with a demographic truncation has been observed in the sardine (secondarily in anchovy) population of the Gulf of Lions (NW Mediterranean Sea). In parallel, sprat biomass, which was negligible before, has increased tenfold. All of these changes have strongly affected the regional fisheries. Using trophic and isotopic data from contrasting periods of low versus high growth and condition, we investigated potential changes in diet and interspecific feeding interactions through time. Evidence of resource partitioning was found between sprat and both anchovy and sardine in 2004 and 2005. Since 2010, the isotopic niches of the 3 species have tended to overlap, suggesting higher risk of competition... |
| Tipo: Text |
Palavras-chave: Trophic ecology; Anchovy; Sardine; Sprat; Dietary overlap; NW Mediterranean. |
| Ano: 2016 |
URL: https://archimer.ifremer.fr/doc/00347/45822/45540.pdf |
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| Dumay, Justine; Donnay-moreno, Claire; Barnathan, G; Jaouen, P; Berge, Jean-pascal. |
| Enzymatic hydrolysis of sardine viscera by three broad spectrum proteases was investigated using the pHstat method (24 h, pH 8, 50 degrees C). After hydrolysis, three fractions (sludge, aqueous phase and oily phase) were collected. For each fraction, lipids and phospholipids were quantified and molecular weights of aqueous phase peptides were determined. Under these conditions, the degree of hydrolysis (DH) varied from 1.9% (Flavourzyme), 3.1% (Protamex) and to 3.3% (Alcalase). Dry matter distribution indicated that all hydrolysis performed increased solubilisation of proteins: protein recovery for each hydrolysis ranged from 57.4% to 61.2%. Furthermore, the total lipid content in the liquid parts (oily and aqueous phases) increased (at least 85% of lipids... |
| Tipo: Text |
Palavras-chave: Fish protein hydrolysate FPH; Sardine; By product; Lipid; Hydrolysis; Phospholipid. |
| Ano: 2006 |
URL: http://archimer.ifremer.fr/doc/2006/publication-2004.pdf |
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| Brosset, Pablo; Fromentin, Jean-marc; Menard, Frederic; Pernet, Fabrice; Bourdeix, Jean-herve; Bigot, Jean-louis; Van Beveren, Elisabeth; Perez Rodia, Maria A.; Choy, Sandrine; Saraux, Claire. |
| As condition is a key variable in population dynamics (especially for survival, growth and reproduction), the use of well-defined and accurate fish condition indices is capital. In particular, condition indices (morphometric, bioenergetic and biochemical) have never been compared and validated for the European anchovy Engraulis encrasicolus, the European pilchard Sardina pilchardus and the European sprat Sprattus sprattus. The accuracy of two indirect methods, the morphometric relative condition index Kn and the bioenergetics index determined with the Distell Fish Fatmeter was investigated by comparing with a direct measure of relative lipid content carried out with a thin layer chromatography-flame ionization detector. Estimations from the fatmeter... |
| Tipo: Text |
Palavras-chave: Anchovy; Fatmeter; Lipids; Mediterranean Sea; Sardine; Sprat. |
| Ano: 2015 |
URL: https://archimer.ifremer.fr/doc/00226/33741/32304.pdf |
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| Kechaou, Emna; Durnay, Justine; Donnay-moreno, Claire; Jaouen, Pascal; Gouygou, Jean-paul; Berge, Jean-pascal; Ben Arnar, Raja. |
| Total lipid and phospholipid recovery as well as amino acid quality and composition from cuttlefish (Sepia officinalis) and sardine (Sardina pilchardus) were compared. Enzymatic hydrolyses were performed using the three proteases Protamex, Alcalase, and Flavourzyme by the pH-stat method (24 h, pH 8, 50 degrees C). Three fractions were generated: an insoluble sludge, a soluble aqueous phase, and an oily phase. For each fraction, lipids, phospholipids, and proteins were quantified. Quantitative and qualitative analyses of the raw material and hydrolysates were performed. The degree of hydrolysis (DH) for cuttlefish viscera was 3.2% using Protamex, 6.8% using Flavourzyme, and 7% using Alcalase. DH for sardine viscera was 1.9% (using Flavourzyme), 3.1% (using... |
| Tipo: Text |
Palavras-chave: Sardine; Viscera; Proteolysis; Marine lipids; Cuttlefish; By products. |
| Ano: 2009 |
URL: http://archimer.ifremer.fr/doc/2009/publication-6366.pdf |
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| Planque, Benjamin; Bellier, Edwige; Lazure, Pascal. |
| Large amplitude variations in recruitment of small pelagic fish result from interactions between a fluctuating environment and population dynamics processes such as spawning. The spatial extent and location of spawning, which is critical to the fate of eggs and larvae, can vary strongly from year to year, as a result of changing population structure and environmental conditions. Spawning habitat can be divided into 'potential spawning habitat', defined as habitat where the hydrographic conditions are suitable for spawning, 'realized spawning habitat', defined as habitat where spawning actually occurs, and 'successful spawning habitat', defined as habitat from where successful recruitment has resulted. Using biological data collected during the period... |
| Tipo: Text |
Palavras-chave: Sardine; Potential spawning habitat; Generalized additive models; Environmental effects; Bay of Biscay; Anchovy. |
| Ano: 2007 |
URL: http://archimer.ifremer.fr/doc/2007/publication-2180.pdf |
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| Huret, Martin; Duhamel, Erwan; Gatti, Paul; Lebigre, Christophe; Le Mestre, Sophie; Petitgas, Pierre; Rabiller, Manuella; Guigue, Thierry; Joguet, Manon; Maillet, Jérome. |
| Le projet FFP Captain visait à l’amélioration des connaissances biologiques et sur la connectivité des stocks de sardine et d’anchois sur la façade Atlantique française (Manche et golfe de Gascogne). Il a reposé sur la collecte de données au travers d’une collaboration avec les professionnels de la pêche (organisations de producteurs et pêcheurs) et de l’exploitation opportuniste des pêches sur l’ensemble des campagnes halieutiques de la zone (PELGAS, EVHOE, CGFS). Ceci a permis une couverture spatiale et saisonnière optimale. Nous avons ainsi affiné la description spatio-temporelle de la reproduction pour les deux espèces, et montré une plus forte croissance ainsi qu’une densité énergétique plus élevées en Manche que dans le golfe de Gascogne. Cette... |
| Tipo: Text |
Palavras-chave: Anchois; Sardine; Petts pélagiques; Golfe de Gascogne; Manche; Collaboraton scientifques–pêcheurs; Génétque; Calorimétrie. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00586/69764/67655.pdf |
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| L'Herrou, Roger. |
| La ponte de la sardine en 1964 dans le golfe de Gascogne et sur le plateau celtique a été récemment étudiée à l'Institut des Pêches par S. Arbault et N. Boutin dans le cadre d'une travail plus général sur la répartition saisonnière des oeufs et larves de téléostéens, travail que résume une communication présentée au Comité du plancton. Les résultats exposés ici et limités à la seule sardine, font suite à l'étude des ces chercheurs et proviennent du dépouillement des pêches planctoniques de 3 campagnes d'hydrologie des pêches effectuées par la Thalassa et la Pélagia dans la même région du 26 avril au 9 mai 1966, du 13 février au 22 mars 1967 et du 16 mai au 7 juin 1967. |
| Tipo: Text |
Palavras-chave: Sardine; Reproduction; Ponte; Hydrologie; Golfe de Gascogne; Plateau celtique. |
| Ano: 1967 |
URL: http://archimer.ifremer.fr/doc/00142/25325/23402.pdf |
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| Sinovcic, G; Alegriahernandez, V. |
| The catch per unit effort of the sardine, Sardina pilchardus (Walbaum, 1792), on the eastern Adriatic fishing grounds has greatly increased in recent years, notably during the past decade. We compared the relationship between annual mean total length and catch per unit effort (CPUE), as an index of population abundance. Decrease in fish size indicated the occurrence of a strong year class and led to an increase abundance in subsequent years. Long-term variations in catch per unit effort for 1963-1988 in relation to primary production, temperature, salinity and oxygen were analysed, with reference to the sardine, in the principal fishing grounds of the eastern part of the Adriatic. This correlation analysis confirmed the impact of these factors on... |
| Tipo: Text |
Palavras-chave: Sardine; Adriatic; Abundance. |
| Ano: 1997 |
URL: http://archimer.ifremer.fr/doc/00093/20453/18125.pdf |
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| Van Beveren, Elisabeth; Fromentin, Jean-marc; Rouyer, Tristan; Bonhommeau, Sylvain; Brosset, Pablo; Saraux, Claire. |
| Since 2007, the biomass of sardine and anchovy in the NW Mediterranean has remained persistently low, whereas the biomass of the commercially low-valued sprat has exploded. Also, simultaneous decreases in condition, size, and/or age of these populations were observed. Altogether, this resulted in a drop in landings of small pelagics. To understand the amplitude of these events and to provide a baseline scenario against which current changes can be compared, we compiled exceptionally long landing series (1865–2013) of sardine, anchovy, and mackerel for different subregions of the southern French coast. We characterized the fluctuations of these landings and compared these with environmental drivers (sea surface temperature, Rhône river discharge, North... |
| Tipo: Text |
Palavras-chave: Anchovy; Fish landings; Gulf of Lions; Historical time series; Mackerel; Sardine. |
| Ano: 2016 |
URL: https://archimer.ifremer.fr/doc/00319/43001/42561.pdf |
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| Coiffec, Gaelle; Duhamel, Erwan; Biseau, Alain; Danzart, Marc. |
| Since 1993 the yearly amounts of sardine landings for the Bay of Biscay fishing ports have experienced a constant increase (10,000 tonnes in 1993); on that account sardine is the first species landed in the fishing ports of the Bay of Biscay (15,000 tonnes in 2003). It is sold 0.54 / kg (constant price over ten years) which means a 8,100 k turnover in 2003 and the 12th rank in value landed in the fishing ports of Bay of Biscay. Though anchovy landings have decreased over the last ten years, especially since 2001, this species occupies the 3rd rank of the highest landings (7,300 tonnes) of the Atlantic shoreline in 2003.The decrease of anchovy landings over the last ten years may account for the high increase of its constant sale price of 1.5 / kg from... |
| Tipo: Text |
Palavras-chave: Purse seiner; Midwater pair trawler; Sardine; Anchovy; Pelagic; Bay of Biscay; Recrutement; Senneur; Chalutier pelagique; Bolincheur; Sardine; Anchois; Pelagique; Golge de Gascogne. |
| Ano: 2006 |
URL: http://archimer.ifremer.fr/doc/2006/rapport-2287.pdf |
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| Perez-galvez, Raul; Chopin, Christine; Mastail, Max; Ragon, Jean-yves; Guadix, Antonio; Berge, Jean-pascal. |
| Fresh sardine (employed as discard model species) was pressed with a hydraulic press in order to obtain a partially dewatered cake (whose volume represents between 55% and 60% of the initial Volume of raw material) and a 3-phase press liquor comprising an aqueous fraction, an oil fraction and a variable amount of suspended solids. Pressing conditions, such as final pressure to which the sardine was subjected, compression speed, number of pressing stages and time of relaxation between two consecutive pressing stages, were optimised by means of a statistically designed experiment. The goal of the optimisation problem was to achieve maximal yield of press liquor with a minimum load of suspended solids. The Suspended solid content in the press liquor Must be... |
| Tipo: Text |
Palavras-chave: Multiobjective optimisation; Response surface methodology; Hydraulic pressing; Fish discards; Sardine. |
| Ano: 2009 |
URL: http://archimer.ifremer.fr/doc/2009/publication-7415.pdf |
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| Giannoulaki, Marianna; Petitgas, Pierre; Barra, Marco; Tugores, Pilar; Vasapollo, C.; Iglesias, M.; Leonori, Iole; De Felice, Andrea; Bonanno, A.; Basilone, G.; Mazzola, Salvatore; Bigot, Jean-louis; Machias, Athanassios; Pyrounaki, Maria M.. |
| A spatial indicator—the spreading area index—is used to describe anchovy and sardine spatial distribution in relation to biomass variation and to look for ecosystem differences within the Mediterranean basin. Specifically, the variation in the spreading area index in relation to biomass was examined for different areas of the Mediterranean Sea (i.e. Aegean Sea, western Adriatic Sea, Strait of Sicily, Gulf of Lion, and Spanish Mediterranean waters). In order to capture the spatial variability of the population at different levels of fish density, acoustic survey data for the years of highest, lowest, and intermediate abundance were used. In a subsequent step standardized values of spreading area and biomass were estimated to allow comparisons. Results... |
| Tipo: Text |
Palavras-chave: Anchovy; Mediterranean Sea; Sardine; Spreading area index. |
| Ano: 2012 |
URL: http://archimer.ifremer.fr/doc/00114/22549/20245.pdf |
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| Carrera, Pablo; Churnside, J.h.; Boyra, G; Marques, V; Scalabrin, Carla; Uriarte, A. |
| The feasibility of using airborne lidar (Light Detection and Ranging) was studied to assess the early juvenile fractions of the main pelagic fish species of the coastal Atlantic waters of southern Europe (anchovy, sardine, mackerel, and horse mackerel). Field comparisons with more established echosounder methods were undertaken in the summers of 1998 and 1999 during the recruitment period of sardine and anchovy in the selected areas, in the presence of a variety of oceanographic and environmental conditions. Backscattered energies as well as the types of target recorded by both devices were compared. The distributions of energies and the shape of the targets were generally similar for both techniques, with moderate numerical correlation between sensors,... |
| Tipo: Text |
Palavras-chave: West Iberian Peninsula; Sardine; Recruitment; Echosounder; Bay of Biscay; Anchovy; Airborne lidar. |
| Ano: 2006 |
URL: http://archimer.ifremer.fr/doc/2006/publication-2139.pdf |
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| Brosset, Pablo; Lloret, Josep; Munoz, Marta; Fauvel, Christian; Van Beveren, Elisabeth; Marques, Virginie; Fromentin, Jean-marc; Menard, Frederic; Saraux, Claire. |
| Limited resources in the environment prevent individuals from simultaneously maximizing all life-history traits, resulting in trade-offs. In particular, the cost of reproduction is well known to negatively affect energy investment in growth and maintenance. Here, we investigated these trade-offs during contrasting periods of high versus low fish size and body condition (before/after 2008) in the Gulf of Lions. Female reproductive allocation and performance in anchovy (Engraulis encrasicolus) and sardine (Sardina pilchardus) were examined based on morphometric historical data from the 1970s and from 2003 to 2015. Additionally, potential maternal effects on egg quantity and quality were examined in 2014/2015. After 2008, the gonadosomatic index increased for... |
| Tipo: Text |
Palavras-chave: Maternal effect; Northwest Mediterranean; Anchovy; Sardine. |
| Ano: 2016 |
URL: http://archimer.ifremer.fr/doc/00353/46458/46233.pdf |
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| Registros recuperados: 29 | |
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