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Registros recuperados: 47
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Alimentación de la vieira patagónica Zygochlamys patagonica (King y Broderip, 1832) en el banco Reclutas (39ºS-55ºW) durante un período anual OceanDocs
Schejter, L..
Zygochlamys patagonica is distributed in the Atlantic Ocean from 35 degree S to Tierra del Fuego (Argentina), and in the Pacific Ocean, up to 42 degree S, between 40 and 200 m depth. There are 9 beds in the Argentinian Sea. Scallops are suspensivore organisms, feeding on detritus and phytoplankton. The aims of this thesis are to make a quali-quantitative study of the diet of the Patagonian scallop, to detect seasonal changes in diet and to link these results with oceanographic conditions and with the growth pattern. Gut contents of 180 scallops were analyzed from samples (n=30) taken in June, August, October and November 1996, and February and March 1997. This procedure was tested statistically. Twelve species of diatoms and resting stages, five species of...
Tipo: Theses and Dissertations Palavras-chave: Feeding; Stomach content; Feeding; Http://aims.fao.org/aos/agrovoc/c_2838.
Ano: 2000 URL: http://hdl.handle.net/1834/3916
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Alimentación de Squalus acanthias y predación sobre Merluccius hubbsi en el Mar Argentino entre 34°47'-47°S. OceanDocs
Garcia de la Rosa, S.B.; Sánchez, M.F..
The spiny dogfish, Squalus acanthias is an euribatic, euritermic and cosmopolitan specie. In the Argentine Sea it consumes diversity of preys, characteristic of a generalist and oportunist feeder, butits principal food items are ctenophores, fishes and cephalopods.Diet overlap between sexes was found between 34°-37°S and 101-150 m,where males principally feed on fishes, squid and polichaetes,sharing only ctenophores and hake consumption with the females. Near 62 cm TL there is a shift in the diet, due to an increment of argentine hake Merluccius hubbsi and squid Illex argentinus predation and a diminution in ctenophores Pleurobrachia pileus eating. Feeding shows an increment from north to south, its mode on 42°-43°S.Argentine hake is an important prey...
Tipo: Journal Contribution Palavras-chave: Feeding behaviour; Predation; Stomach content; Trophic relationships; Feeding behaviour; Predation; Http://aims.fao.org/aos/agrovoc/c_10778; Http://aims.fao.org/aos/agrovoc/c_6162.
Ano: 1997 URL: http://hdl.handle.net/1834/1938
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Alimentación del pez limón, Seriola lalandi (Valenciennes, 1833 in Cuvier y Valenciennes, 1833) en aguas bonaerenses OceanDocs
Vergani, M..
The yellowtail kingfish, Seriola lalandi, Carangidae (Valenciennes, in Cuvier y Valenciennes, 1833) is a pelagic, schooling fish, with gregarious behaviour. It is a circumglobal species from tropical and temperate waters. Adult S. lalandi migrate to Argentine waters (SW Atlantic) during summer months (January-April). They have been reported from Argentine waters in depths of 20-36 m between 36°S and 38° and, as reported elsewhere in the world, are often associated with rocky reefs. Samples of S. lalandi were caught using trolling lines during daytime around rocky reefs at 35° 52'-35° 58'S and 54° 45'-54° 48'W, on February 15-22, 2002. Sixty-six adult S. lalandi were analyzed, with specimens measured (LT) and weighted (WT). The length-weight relationship...
Tipo: Theses and Dissertations Palavras-chave: Feeding behaviour; Feeding migrations; Nursery grounds; Stomach content; Taxonomy; Length-weight relationships; Feeding behaviour; Taxonomy; Nursery grounds; Http://aims.fao.org/aos/agrovoc/c_10778; Http://aims.fao.org/aos/agrovoc/c_7631; Http://aims.fao.org/aos/agrovoc/c_25438.
Ano: 2005 URL: http://hdl.handle.net/1834/2561
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Alimentation du merlan Merlangius merlangus L. en Mer Celtique ArchiMer
Du Buit, Marie-henriette; Merlina, Frédéric.
The importance of predation by the whiting (Merlangius merlangus ) from the Celtic Sea has been studied by analysis of stomach contents. Eight hundred and thirteen whitings have been examined during 1984-1986 period. Fish food totalizes 97% of food. It is chiefly a swimming species: no cannibalism has been observed. The daily food index varies between 2 and 4% according to the length and the annual consumption on fishes of nominal catches (11230 t for 1983) would reach 135,000 t corresponding to species already fished for human consumption and the fish meal industry.
Tipo: Text Palavras-chave: Celtic Sea; ANE; Gadidae; Pisces; Merlangius merlangus; Predator control; Stomach content; Feed composition; Feeding.
Ano: 1985 URL: http://archimer.ifremer.fr/doc/1985/publication-1744.pdf
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Análisis del contenido estomacal del Camarón Titi Xiphopenaeus kroyeri (Heller) (Crustacea: Natantia: Penaeidae) OceanDocs
Costés, M.L.; Criales, M.M..
Juveniles y adultos del camarón titi Xiphopenaeus kroyerí (Heller) fueron colectados mensualmente en Costa Verde (Ciénaga), Caribe colombiano, entre septiembre 788 y junio /89. Se determinaron los Ítems alimentarios más importantes, siendo estos en orden descendente: detritus, fragmentos de conchas de bivalvos, poliquetos, foraminíferos y crustáceos. Se detectaron diferencias en la alimentación entre la época lluviosa (septiembre a diciembre) y la época seca (enero a junio), presentándose algunos ítems como rotíferos, esponjas y radiolarios sólo en la época seca. Se analizaron las frecuencias de aparición de los diferentes Ítems en camarones adultos y juveniles, encontrándose que ciertos grupos como rotíferos y briozoos son más frecuentes en juveniles. Se...
Tipo: Journal Contribution Palavras-chave: Shrimp culture; Marine crustaceans; Stomach content.
Ano: 1990 URL: http://hdl.handle.net/1834/3883
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Anatomía comparada macro y microscópica del aparato digestivo de dos peces de regimen alimentario diferente: pez palo (Percophis brasiliensis) y saraca o lacha (Brevoortia aurea) OceanDocs
Durquet, J..
Tipo: Theses and Dissertations Palavras-chave: Digestive system; Stomach content; Animal morphology; Digestive system; Animal morphology; Http://aims.fao.org/aos/agrovoc/c_2275; Http://aims.fao.org/aos/agrovoc/c_421.
Ano: 1972 URL: http://hdl.handle.net/1834/3876
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Approche du regime alimentaire des juveniles de bars et de limandes en baie de Somme. ArchiMer
Leaute, Jean-pierre.
Stomach contents of juveniles of sea bass (Dicentrarchus labrax ) and common dab (Limanda limanda ) collected during September 1982 from Bay of Somme and the neighbor coast to Penly, were examined. The most part of the diet of young sea bass are the crustaceans, Sedentary polychaetes appear to be the major food item for common dab. For these two young predator species, food preferences tend to change early: cumaceans, then common edible shrimp, for sea bass, Tube worm tentacles, then part of whole individuals are preferred by common dab.
Tipo: Text Palavras-chave: Dicentrarchus labrax; Prey selection; Food preferences; Stomach content; Diets.
Ano: 1984 URL: http://archimer.ifremer.fr/doc/1984/publication-1789.pdf
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Aspectos de la conducta alimentaria del mero (Epinephelus morio) del Banco de Campeche OceanDocs
Giménez, E.; Anderes, B.; Moreno, V.J.; Burgos, R..
El trabajo expone los resultados del análisis de contenido estomacal de 855 individuos de mero (Epinephelus morio) capturados en el Banco de Campeche, con tallas entre 25 y 89 cm de longitud furcal (Lf). Los peces (28%), cangrejos (43%) y camarones (18%) predominan en el contenido gástrico. En tallas menores de 55 cm la frecuencia relativa de cangrejos es mayor (33%) y a partir de dicho tamaño los peces (42%) pasan a ser los más representados. Se detectó diferencia significativa en la distribución de frecuencias de las presas entre regiones, siendo la región central la de mayor abundancia. No se aprecian diferencias en la distribución de frecuencias de las presas por profundidad. La actividad alimentaria se manifiesta durante todo el año, con más...
Tipo: Journal Contribution Palavras-chave: Feeding behaviour; Food preferences; Stomach content; Feeding behaviour; Food preferences; Http://aims.fao.org/aos/agrovoc/c_10778; Http://aims.fao.org/aos/agrovoc/c_3024.
Ano: 2001 URL: http://hdl.handle.net/1834/1807
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Biometric relationships between body size and otolith size in 15 demersal marine fish species from the northern Brazilian coast Acta Amazonica
OLIVEIRA,Rory Romero de Sena; ANDRADE,Marcelo Costa; MACHADO,Fabiola Seabra; CUNHA,Élida Jesana Santana; FREITAS,Flaviane Souto de; KLAUTAU,Alex Garcia Cavalleiro de Macedo; GIARRIZZO,Tommaso; SAINT-PAUL,Ulrich.
ABSTRACT The relationships between fish size and sagitta otolith measurements were calculated for the first time for 15 species belonging to six families from the northern Brazilian coast. A total of 220 fish were sampled from the bycatch landed by the bottom-trawl industrial shrimp-fishing fleet between August and September 2016. All species had strong relationships between otolith measurements and fish total length with the coefficient of determination (r 2) ranging between 0.71 and 0.99. The variable most strongly related to fish total length was found to be the sagittal otolith length (OL) with 98% of the variability. These relationships are a useful tool to estimate length and mass of preyed fish from otoliths found in stomach contents of marine...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Amazon delta; Bycatch; Sagitta; Neotropics; Sciaenidae; Stomach content.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672019000400299
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Características de algunas rayas de la región sudpatagónica OceanDocs
Sánchez, M.F.; Mabragaña, E..
Data considered in this paper were obtained during a research cruise carried out on board of RV Dr. E.L. Holmberg from INIDEP (Instituto Nacional de Investigacion y Desarrollo Pesquero) during March-April 2000 in the area between 48°S and 55°S (S Patagonian) region, SW Atlantic. From 61 bottom trawls a total of 355 specimen belonging to 11 skate species were collected. This represents, in number, 1.8 of the total species biomass. All skate species were identified and some biological characteristics for each species analyzed. Abundance was estimated in tons and the distribution area of each species was determined. Total weight and morphometric data by sex were measured total length, disc width and clasper length. Stomach content and macroscopical...
Tipo: Journal Contribution Palavras-chave: Marine fish; Abundance; Stomach content; Food organisms; Diets; Feeding behaviour; Community composition; Feeding behaviour; Http://aims.fao.org/aos/agrovoc/c_10778.
Ano: 2002 URL: http://hdl.handle.net/1834/2426
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Comparaison de cinq indices alimentaires utilises dans l'analyse des contenus stomacaux ArchiMer
Rosecchi, E; Nouaze, Y.
Compound indices are often used in the analysis of fish stomach contents to characterize diet. Five of these indices, combining two or three measures of prey importance: weight, abundance and frequency of occurrence, are mathematically compared in this work. Data from a feeding study of sparid fish show that different indices can produce different results. Four classifications of food, in terms of preferences, are applied to Sparidae, compared and discussed. A new method of classifying the prey of fish into groups is proposed. It characterizes the main items in the diet, whatever feeding index is chosen for the analysis.
Tipo: Text Palavras-chave: Quantitative distribution; Weight; Predation; Stomach content; Feeding.
Ano: 1985 URL: http://archimer.ifremer.fr/doc/1985/publication-1773.pdf
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Composición de la dieta de Pellona harroweri (Fowler) (Pisces: Pristigasteridae) en la Guajira, Caribe colombiano OceanDocs
Criales-Hernández, M.I..
This study provides quantitative information on digestive tract content of Pellona harroweri caught on the Guajira shelf at a depth of 20 m. Preferential prey are crustaceans, mainly copepos and luciferids.
Tipo: Journal Contribution Palavras-chave: Diets; Stomach content.
Ano: 2003 URL: http://hdl.handle.net/1834/3137
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Contrasting perception of fish trophic level from stomach content and stable isotope analyses: A Mediterranean artificial reef experience ArchiMer
Cresson, Pierre; Ruitton, Sandrine; Ourgaud, Melanie; Harmelin-vivien, Mireille.
A large complex of artificial reefs was deployed in the Bay of Marseilles, North-Western Mediterranean, for the enhancement of commercial fisheries stocks. Carbon and nitrogen stable isotope and stomach content analyses were performed on 23 fish species collected on the artificial reefs to assess their trophic position and feeding behaviour. Results indicated that fish diets were not modified on the artificial reefs compared to natural environments, nor was the structure of their trophic network. Artificial reefs, with their complex design, provide diverse and abundant food sources for fishes. Ranges of delta C-13 and delta N-15 of artificial reef fishes were comparable to those recorded in natural Mediterranean environments, with a similar trophic...
Tipo: Text Palavras-chave: Artificial reefs; Fish diet; NW Mediterranean; Stable isotopes; Stomach content; Trophic level.
Ano: 2014 URL: http://archimer.ifremer.fr/doc/00186/29708/28188.pdf
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Diet composition of Champsocephalus gunnari (Pisces,Channichthyidae)around South Georgia Islands, R/V Dr. Eduardo L.Holmberg survey, February/March 1994. OceanDocs
Barrera-Oro, E.; Casaux, R.; Roux, A..
The diet composition of the icefish Champsocephalus gunnari caught around the South Georgia Islands and Shag Rocks, Atlantic sector of Antacrtica in February/March 1994 was analyzed using the frequency of occurrence (. ) method. Krill Euphausia superba followed by the hyperiid amphipod Themisto gaudichaudii were the main prey items at South Georgia and Shag Rocks; first were found in thestomachs more frequently than in past seasons around South Georgia,in parallel with the virtual absence of mysids and Thysanoessaspp. Krill was available for fish at the same level than in previous years (e.g. 1985, 1992). However, high proportion of empty stomachs were found at South Georgia and Shag Rocks, close to the values reported for the 1991 year of krill...
Tipo: Journal Contribution Palavras-chave: Feeding; Food preferences; Stomach content; Fishery surveys; Feeding; Food preferences; Http://aims.fao.org/aos/agrovoc/c_2838; Http://aims.fao.org/aos/agrovoc/c_3024.
Ano: 1997 URL: http://hdl.handle.net/1834/1931
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Diet of fish (Characiformes: Characidae) during early developmental stages in the Upper Paraná river basin, Brazil Biological Sciences
Soares, Claudemir Martins; Hayashi, Carmino; Faria-Soares, Anna Christina Esper; Galdioli, Eliana Maria; Soares, Telma.
This study analyzed the diet during early developmental stages of Astyanax lacustris (AA), Piaractus mesopotamicus (PM), Megaleporinus obtusidens (MO) and Prochilodus lineatus (PL), under experimental conditions. Fish larvae, 350 of each species, were stocked separately in 16 fiber-cement tanks (500 L), from which, three larvae of each species were collected every three days, for 36 days. Tanks were fertilized (1.5 g NPK-7: 14: 8) and had 50% of the surface with macrophytes. Larvae were grouped in age classes = I: 5 to 11, II: 14 to 20, III: 23 to 29 and IV: 32 to 38 days and, dissected for analysis of the digestive tract. Methodologies of dominance, frequency of occurrence and points of food items were used. For AA and PM larvae, measurements were taken...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Fish larval; Stomach content; Astyanax lacustris; Megaleporinus obtusidens; Piaractus mesopotamicus; Prochilodus lineatus..
Ano: 2017 URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/36846
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Diet of red squid (Ommastrephes bartramii)in the Southwest Atlantic OceanDocs
Ivanovic, M.L.; Brunetti, N.E..
The diet of red squid (Ommastrephes bartramii)during autumn 2001 and2002 in the SW Atlantic region off Argentina and Uruguay (33° S-42° S;46° W-55° W)was composed mainly of fish (55-68. ), followed by squid (32-37. ) and zooplankton (8. only in 2001). Around 60. of the fish eaten was identified as myctophids and corresponded to five genera and seven species, with higher frequency of Hygophum hygomii (24-34. ). The identification of squids consumed reached 20. in 2001 and 80. in 2002 and the only species identified was O. bartramii, which implies percentages of cannibalism of 5.6. and 25.8. each year. For the range analyzed, 141-443 mm of mantle length (ML), the consumption of fish and squid did not show any relation to the size of predator. In 2001 the...
Tipo: Journal Contribution Palavras-chave: Feeding behaviour; Food consumption; Food preferences; Stomach content; Feeding behaviour; Food consumption; Food preferences; Http://aims.fao.org/aos/agrovoc/c_10778; Http://aims.fao.org/aos/agrovoc/c_3016; Http://aims.fao.org/aos/agrovoc/c_3024.
Ano: 2004 URL: http://hdl.handle.net/1834/1403
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Digestive enzyme activity and food ingesta in juvenile shrimp Litopenaeus vannamei (Boone, 1931) as a function of body weight ArchiMer
Gamboa Delgado, Julián; Molina Poveda, César; Cahu, Chantal.
A study was conducted to evaluate variations of digestive enzyme activities in Litopenaeus vannamei (Boone) reared in commercial ponds under semi-intensive conditions. Shrimp were collected at each body weight increase of 2 g. As the shrimp grew (2-12 g), significant increases in the activities of lipase and chymotrypsin were observed. The total protease activity decreased from 6 g onwards. Trypsin activity showed a peak at 6 g and amylase activity increased two-fold after 2 g. Additionally, the stomach contents were analysed microscopically for shrimp between 2 and 10 g. Plant matter contributed above 30% of the total stomach content in 6-, 8- and 10-g shrimp. Detritus represented 58% and 62% of the total stomach content in 2- and 4-g shrimp,...
Tipo: Text Palavras-chave: Semi intensive culture; Stomach content; Digestive enzymes; Litopenaeus vannamei; Shrimp.
Ano: 2003 URL: http://archimer.ifremer.fr/doc/2003/publication-902.pdf
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Dinoflagelles toxiques sur les cotes francaises pendant l'ete 1983. Manifestations de Dinophysis acuminata sur le littoral normand. ArchiMer
Paulmier, Gerard; Joly, Jean-pierre.
Numerous cases of food poisoning were observed in South Normandy during the summer 1983 and attributed to shellfish consumption. At the same time a dinoflagellate Dinophysis acuminata was found in the Bay of Seine and in north Normandy where high concentrations induced "red waters". The observation of the stomach contents of the mussels showed that this Dinophysis was one of the main constituents of the alimentary bolus. The toxicity of type DSP, determined by the mouse-test, is more or less correlated with the abundance coefficient of D. acuminata . Its space distribution also seems connected to the tidal movements.
Tipo: Text Palavras-chave: Normandy; France; ANE; Dinophysis acuminata; Food poisoning; Stomach content; Mussel culture; Red tides; Biological poisons.
Ano: 1983 URL: http://archimer.ifremer.fr/doc/1983/publication-1807.pdf
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Distribución, áreas de concentración y estructura de la población del abadejo (Genypterus blacodes) OceanDocs
Renzi, M.A..
The "abadejo" is one of the species that has been traditionally exploited in the Argentine Sea. Although the capture was not very important, it has been increased in the last years. In this work, the structure of the concentration areas of summer, spring and winter distribution and other biological items were analyzed, basing on the data collected during cruises effected by R/V "Walther Herwing" and R/V "Shinkai Maru" in these waters during 1978/79. Winter and spring distribution patterns showed the highest concentrations located between 41º and 48º SL, specially on the slope. Summer distribution pattern showed the concentration areas located between 43º30' and 48º30' LS shifted rather to the coast when comparing to the previous one. During the winter, in...
Tipo: Theses and Dissertations Palavras-chave: Geographical distribution; Population structure; Feeding; Length-weight relationships; Stomach content; Diets; Seasonal distribution.
Ano: 1982 URL: http://hdl.handle.net/1834/5028
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Ecología reproductiva y hábitos alimentarios del pez angel, Squatinaguggenheim (Chondrichthyes: Squatinidae), en el Distrito Biogeográfico Bonaerense, entre 34° y 42°S OceanDocs
Colonello, J.H..
The reproductive ecology and feeding habits of Squatina guggenheim inthe SW Atlantic ecosystem between 34° and 42°S were studied. For the reproductive study, 423 individuals were obtained in 12 research cruises between 2000 and 2004. Reproductive parameters were analyzed in two oceanographic systems, the Rio de La Plata estuary (ERLP), Argentine-Uruguayan waters, and the El Rincon (ER), Argentina, Buenos Aires Prov. The feeding habits were analyzed using 329 stomach contents of individuals taken in ERLP (264)and ER (65 ER). For this study the individuals were reproductively (adults and juveniles)and seasonality (fall-winter and spring-summer)grouped. In ERLP the maximum total length was 920 mm for females and 865mm for males; in ER the maximum TL for...
Tipo: Theses and Dissertations Palavras-chave: Feeding behaviour; Food preferences; Stomach content; Sexual maturity; Reproduction; Feeding behaviour; Food preferences; Sexual maturity; Reproduction; Http://aims.fao.org/aos/agrovoc/c_10778; Http://aims.fao.org/aos/agrovoc/c_3024; Http://aims.fao.org/aos/agrovoc/c_7016; Http://aims.fao.org/aos/agrovoc/c_6507.
Ano: 2005 URL: http://hdl.handle.net/1834/2596
Registros recuperados: 47
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