Consulta: subjectFacets:"Sardine"
Registros recuperados: 29
Data/hora: 06/06/2024 03:19:52

Long-term, Ecosystem-Scale Changes in the Southern Benguela Marine Pelagic Social-Ecological System: Interaction of Natural and Human Drivers
Provedor de dados: 7
Autores: 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

Historical fluctuations in spawning location of anchovy (Engraulis encrasicolus) and sardine (Sardina pilchardus) in the Bay of Biscay during 1967-73 and 2000-2004
Provedor de dados: 5
Autores: 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

One-dimensional biophysical modelling of fish egg vertical distributions in shelf seas
Provedor de dados: 5
Autores: 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

The French sardine fishery
Provedor de dados: 5
Autores: Duhamel, Erwan.
This approach of the French sardine fishery shows mainly that pelagic trawlers are targeting less and less sardine, year after year. In an assessment approach, it would be necessary to define an estimation of fishing effort, but it will be very difficult. We are able to compt the number of fishing days, but not the time of fishing (or number of shoots for example for purse seiners) or time of searching schools. So, accessibility and catchability could be certainly more accurate than the fishing effort for assesment purposes.
Tipo: Text
Palavras-chave: Pelagic trawl; Purse seine; French fishery; Sardine; Survey; ICES; PELGAS; Chalut pélagique; Bolinche; French fishery; Sardine; Surveycampagne océanographqie; CIEM; PELGAS.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/acte-2292.pdf

Optimization of hydrolysis of sardine (Sardina pilchardus) heads with Protamex: enhancement of lipid and phospholipid extraction
Provedor de dados: 5
Autores: Dumay, Justine; Allery, Marion; Donnay-moreno, Claire; Barnathan, Gilles; Jaouen, Pascal; Carbonneau, Marie Elise; Berge, Jean-pascal.
BACKGROUND: Fish by-products are not considered as valuable raw materials even if they usually contain valuable components such as lipids. Fish lipids are well known for their nutritional potential and health effects but their extraction remains problematic due to the use of organic solvents. Enzymatic hydrolysis such as the proteolysis of tissues can lead to lipid extraction. RESULTS: Hydrolysis of sardine heads by Protamex was studied (temperature, hydrolysis time and enzyme-substrate ratio) using response surface methodology in order to obtain the highest release of lipids and particularly phospholipids. No relation between the degree of hydrolysis and lipid recovery were depicted; however, optimum conditions for both the release of lipids and...
Tipo: Text
Palavras-chave: Response surface methodology; Proteolysis; Sardine; By product; Fatty acids; Phospholipids.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/publication-6651.pdf

Linking small pelagic dietary shifts with ecosystem changes in the Gulf of Lions
Provedor de dados: 5
Autores: 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

Improvement of lipid and phospholipid recoveries from sardine (Sardina pilchardus) viscera using industrial proteases
Provedor de dados: 5
Autores: 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

Measurement and analysis of small pelagic fish condition: A suitable method for rapid evaluation in the field
Provedor de dados: 5
Autores: 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

Enzymatic hydrolysis of cuttlefish (Sepia officinalis) and sardine (Sardina pilchardus) viscera using commercial proteases: Effects on lipid distribution and amino acid composition
Provedor de dados: 5
Autores: 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

Modelling potential spawning habitat of sardine (Sardina pilchardus) and anchovy (Engraulis encrasicolus) in the Bay of Biscay
Provedor de dados: 5
Autores: 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

Rapport Final – Projet CAPTAIN. Connaissances Améliorées à l'aide des Pêcheurs sur la sArdIne et l'ANchois de la façade Atlantque - Bilan 2015-2018
Provedor de dados: 5
Autores: 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

Répartition des oeufs et larves de sardine dans le Golfe de Gascogne et sur le plateau celtique (mai 1966 ; février et mai 1967)
Provedor de dados: 5
Autores: 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

Variation in abundance and size of the sardine Sardina pilchardus (Walbaum) in the eastern Adriatic
Provedor de dados: 5
Autores: 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

The fisheries history of small pelagics in the Northern Mediterranean
Provedor de dados: 5
Autores: 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

Analyse des petits pelagiques, sardine et anchois, dans le golfe de Gascogne
Provedor de dados: 5
Autores: 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

Optimisation of liquor yield during the hydraulic pressing of sardine (Sardina pilchardus) discards
Provedor de dados: 5
Autores: 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

Density dependence in the spatial behaviour of anchovy and sardine across Mediterranean systems
Provedor de dados: 5
Autores: 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

Évolution de l'écosystème pélagique du Golfe de Gascogne pendant la période 1990-2003. Conséquences sur la capturabilité des espèces
Provedor de dados: 5
Autores: Villalobos, Hector.
Several small pelagic fish species contribute remarkably to world catch. Their populations are, however, characterized by large biomass fluctuations strongly affecting fisheries. The fishing gears and methods used to capture small pelagics have evolved to exploit the highly developed shoaling behavior of these species. Hence, faced to modern fishing this gregarious behavior becomes a disadvantage for fish. Fish behavior may be affected by environmental conditions and by fishing, at the same time that behavior impacts fishing. In this study, we seek to characterize the aggregative systems of small pelagic fishes inhabiting the Bay of Biscay by analyzing "acoustic images", defined as the group of echoes (planktonic layers, shoals, isolated targets) detected...
Tipo: Text
Palavras-chave: Biscay Bay; Hydrological landscapes; Fishery; Atlantic mackerel; Atlantic horse mackerel; European sardine; European anchovy; Small pelagic fish; Acoustic image; Agregation pattern; School descriptors; Golfe de Gascogne; Paysages hydrologiques; Pêcherie; Maquereau; Chinchard; Sardine; Anchois; Petits poissons pélagiques; Image acoustique; Type d'agrégation; Descripteurs de bancs.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2008/these-6083.pdf

Comparison of airborne lidar with echosounders: a case study in the coastal Atlantic waters of southern Europe
Provedor de dados: 5
Autores: 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

Body reserves mediate trade-offs between life-history traits: new insights from small pelagic fish reproduction
Provedor de dados: 5
Autores: 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

Spatio-temporal patterns and environmental controls of small pelagic fish body condition from contrasted Mediterranean areas
Provedor de dados: 5
Autores: Brosset, Pablo; Fromentin, Jean-marc; Van Beveren, Elisabeth; Lloret, Josep; Marques, Virginie; Basilone, Gualtiero; Bonanno, Angelo; Carpi, Piera; Donato, Fortunata; Kec, Vanja Cikes; De Felice, Andrea; Ferreri, Rosalia; Gasparevic, Denis; Giraldez, Ana; Gucu, Ali; Iglesias, Magdalena; Leonori, Iole; Palomera, Isabel; Somarakis, Stylianos; Ticina, Vjekoslav; Torres, Pedro; Ventero, Ana; Zorica, Barbara; Menard, Frederic; Saraux, Claire.
Small pelagic fish are among the most ecologically and economically important marine fish species and are characterized by large fluctuations all over the world. In the Mediterranean Sea, low catches and biomass of anchovies and sardines have been described in some areas during the last decade, resulting in important fisheries crises. Therefore, we studied anchovy and sardine body condition variability, a key index of population health and its response to environmental and anthropogenic changes. Wide temporal and spatial patterns were investigated by analyzing separately data from scientific surveys and fisheries in eight Mediterranean areas between 1975 and 2015.  Results showed that anchovy and sardine body condition as well as maximum size in some areas...
Tipo: Text
Palavras-chave: Anchovy; Sardine; Fish health; Marine monitoring.
Ano: 2017
URL: https://archimer.ifremer.fr/doc/00363/47400/47936.pdf

Influence of environmental variability and age on the body condition of small pelagic fish in the Gulf of Lions
Provedor de dados: 5
Autores: Brosset, Pablo; Menard, Frederic; Fromentin, Jean-marc; Bonhommeau, Sylvain; Ulses, Caroline; Bourdeix, Jean-herve; Bigot, Jean-louis; Van Beveren, Elisabeth; Roos, David; Saraux, Claire.
Endogenous and environmental variables are fundamental in explaining variations in fish condition. Based on more than 20 yr of fish weight and length data, relative condition indices were computed for anchovy and sardine caught in the Gulf of Lions. Classification and regression trees (CART) were used to identify endogenous factors affecting fish condition, and to group years of similar condition. Both species showed a similar annual cycle with condition being minimal in February and maximal in July. CART identified 3 groups of years where the fish populations generally showed poor, average and good condition and within which condition differed between age classes but not according to sex. In particular, during the period of poor condition (mostly recent...
Tipo: Text
Palavras-chave: Anchovy; Sardine; Relative condition factor; NW Mediterranean Sea; Endogenous effect; Environmental effect.
Ano: 2015
URL: https://archimer.ifremer.fr/doc/00272/38334/36575.pdf

Survey timing vs. ecosystem scheduling: Degree-days to underpin observed interannual variability in marine ecosystems
Provedor de dados: 5
Autores: Huret, Martin; Bourriau, Paul; Doray, Mathieu; Gohin, Francis; Petitgas, Pierre.
Fishery annual surveys are shifting towards integrated ecosystem surveys. However, monitoring the whole ecosystem once a year entails special attention to the interpretation of observations, because they only represent a snapshot in the seasonal dynamics of the environment, of a species, or any dynamic process of interest. The dependency of this snapshot to the timing, but also to the duration, of the survey with respect to this seasonal dynamics needs to be considered. Fish stock assessment is only little impacted by the observed timing within a given season, whereas warming, stratification, plankton bloom occurrence, or fish fecundity, are processes rapidly changing especially in spring. Firstly, from independent satellite data, we described the seasonal...
Tipo: Text
Palavras-chave: Ecosystem survey; Anchovy; Sardine; Spawning; Sea surface temperature; Degree day; Bay of Biscay.
Ano: 2018
URL: http://archimer.ifremer.fr/doc/00394/50584/51483.pdf

Sardine series in PELGAS surveys : PELGAS 2000 to 2005
Provedor de dados: 5
Autores: Masse, Jacques; Duhamel, Erwan; Delaunay, Damien.
Survey data from 2000 to 2004 were used to analyse whether sardine show a preferential distribution in relation to bottom depth and/or latitude. For this analysis, four strata were considered; North or South of latitude 46°N (separating VIIIa and VIIIb) and bottom depths deeper or shallower than 110m. Sardine length distributions are plotted as the proportion of small (&lt; 18.5 cm) or big (larger than 18.5 cm) fish on the samples over the years. This division was chosen to take into account the bimodal structure of sardine length distributions (usually with a "valley" at 18.5 cm fish length). Small fish (mainly 1 year old) are generally found close to the coast and preferentially in the southern part. The year 2003 is different to the others but this year...
Tipo: Text
Palavras-chave: Assessment; Sardine; Bay of Biscay; Acoustic; Survey; ICES; PELGAS; Estimation de stock; Sardine; Golfe de Gascogne; Acoustique; Campagne océanographique; CIEM; PELGAS.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/acte-2294.pdf

Analysing Temporal Variability in Spatial Distributions Using Min–Max Autocorrelation Factors: Sardine Eggs in the Bay of Biscay
Provedor de dados: 5
Autores: Petitgas, Pierre; Renard, Didier; Desassis, Nicolas; Huret, Martin; Romagnan, Jean-baptiste; Doray, Mathieu; Woillez, Mathieu; Rivoirard, Jacques.
This paper presents a novel application of the geostatistical multivariate method known as min–max autocorrelation factors (MAFs) for analysing fisheries survey data in a space–time context. The method was used to map essential fish habitats and evaluate the variability in time of their occupancy. Research surveys at sea on marine fish stocks have been undertaken for several decades now. The data are time series of yearly maps of fish density, making it possible to analyse the space–time variability in fish spatial distributions. Space–time models are key to addressing conservation issues requiring the characterization of variability in habitat maps over time. Here, the variability in fisheries survey data series is decomposed in space and time to address...
Tipo: Text
Palavras-chave: MAF; Space-time; Habitat; Mapping; Sardine; Bay of Biscay.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00599/71157/69915.pdf

Size, permeability and buoyancy of anchovy (     Engraulis Encrasicolus     ) and sardine (     Sardina Pilchardus     ) eggs in relation to their physical environment in the Bay of Biscay
Provedor de dados: 5
Autores: Huret, Martin; Bourriau, Paul; Gatti, Paul; Dumas, Franck; Petitgas, Pierre.
The size and specific gravity of eggs of marine pelagic fish partly determine their dispersal and survival. Using an original dataset of anchovy and sardine eggs, sampled in spring over the last decade in the Bay of Biscay, we provide a parameterization of these properties on ambient water temperature and salinity. We used the density gradient column for measurement of egg specific gravity. The column was also filled with homogeneous water for sinking velocity experiments. For anchovy, these experiments confirm that the effect of egg permeability through the chorion could be neglected when modelling sinking, while it has to be considered for sardine, its perivitelline space representing 78.6% (±6.2%) of the total egg volume, as opposed to 5–10% for most...
Tipo: Text
Palavras-chave: Anchovy; Bay of Biscay; Density gradient column; Egg buoyancy; Egg permeability; Egg size; Sardine.
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00346/45676/45326.pdf

De l'utilisation de protéases industrielles pour la production de sauces de poisson
Provedor de dados: 5
Autores: Le, Minh Chau.
Fish sauces are traditionally used in most Asian countries. Whatever the process, the principle is the same i.e. a fish autolysis in saline media followed by a fermentation step. Not less than 18 months are needed to obtain a brown liquid rich in salt and amino acids. This PhD work aims to determine if an addition of proteases can speed up the process while keeping the nutritional and sensorial properties. The first chapter presents the characteristics of fish sauces and the key parameters of the processes used. In the second chapter, several industrial proteases are compared each other for their capacity to liquefy the fishes in hyper saline conditions. Kinetics of proteolysis and biochemical characteristics of the resulting hydrolysates are established...
Tipo: Text
Palavras-chave: Sauce de poisson; Hydrolyse; Enzyme; Protéase; Sardine; Anchois; Fish sauce; Hydrolysis; Enzyme; Protease; Sardine; Anchovy.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00259/36997/35488.pdf

Ressources halieutiques hors quotas du Nord Est Atlantique : bilan des connaissances et analyse de  scénarios d'évolution de la gestion
Provedor de dados: 5
Autores: Forest, Andre.
Part of the resources caught in the North Sea, Channel or Atlantic Sea do not fall under the « TAC and Quotas » strand of the Common Fisheries Policy, but the European Union may propose that such measures may eventually be applied to them. Usually these resources do not undergo regular assessments. This study focuses on « ex quota » stocks fished by French fleets, in order to assess knowledge concerning them and analyse possible trends in their management. It was contracted with funding from the Maritime fisheries and aquaculture directorate. Thirty-four species in all were chosen with respect to their interest for French fleets and the probability of Europe's adopting supplementary management measures for them. Available data is sometimes patchy (or not...
Tipo: Text
Palavras-chave: Seiche; Sikis; Tacaud commun; Requin taupe; Tourteau Grondin rouge; Sardine Grenadier de roche; Sabre noir Germon; Rouget barbet Empereur; Raie bouclée Dorade grise; Raie fleurie Calmar; Petite roussette Turbot; Merlan Barbue; Lingue bleue Bar; Lieu jaune Araignée de mer; Homard Gascogne Manche Biologie Evaluation de stocks Gestion Edible Crab Gulper Sharks And Dogfish; Bib; Porbeagle Red Mullet; Black Scabbard Fish; Sardine; Cuttlefish Lesser Spotted Dogfish; Cuckoo Ray; Thornback Ray Red Gurnard; Lobster; Pollack; Blue Ling; Whiting Black Bream; Orange Roughy; Albacore Tuna; Round Nose Grenadier Sea Bass; Brill; Turbot; Squid Channel; Biscay; Spider Crag Biology Stock assessment Management.
Ano: 2001
URL: https://archimer.ifremer.fr/doc/2001/rapport-1201.pdf

Intoxications par animaux marins vénéneux à Madagascar (ichtyosarcotoxisme et chélonitoxisme): données épidémiologiques récentes.
Provedor de dados: 20
Autores: Razafimahefa, N.; Champetier de Ribes, G.; Ranoivoson, G.; Rasolofonirina, R.N.; Rakotoson, J.D.; Rabeson, D.
If seafood poisonings are well documented in the Pacific region, they are not often reported in the Indian Ocean. In Madagascar, fishermen and people living in coastal areas are traditionally aware of seafood poi - sonings . Mass intoxications were described in the sixties, including lethal cases following sardine ingestion. From 1989 to 1993, 28 ichtyosarcotoxism cases, mainly ciguatera occurring in children, were reported in Tulear hospital . From July 1993 to May 1996, nine seafood poisoning outbreaks occurred in coastal villages after turtle, shark and sardine meals. Clinical symptoms were related to marine toxins. For turtle intoxications, gastro-intestinal symptoms are the most frequently seen (acute stomatitis, dysphagia, vomiting and diarrhea) ,...
Tipo: Journal Contribution
Palavras-chave: Sardine; Biotoxins; Chelonitoxism; Ciguatera; Ichtysarcotoxism; Clupeotoxin; Seafood; Poisoning.
Ano: 1997
URL: http://hdl.handle.net/1834/782