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| Registros recuperados: 233 | |
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| 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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| Aristizabal, E.O.; Suárez, J.. |
| The red porgy (Pagrus pagrus)is an important commercial and recreational species with very good prospect for aquaculture. Because significant mortalities, the mass production of this species is limited. This paper describes three weaning strategies to investigate their effects on the survival and growth of red porgy larvae reared in laboratory: A)traditional three-step weaning (rotifers - Artemia - diet)(control); B)one-step early weaning by co-feeding (rotifers - Artemia + diet), and C)one-step direct early weaning (rotifers - diet). Sigificative differences were recorded among treatments (P0.05). Best survival rate (45.6 ± 7.6 percent)and growth (7.4 ± 0.5 mm)were found in treatment B. Results indicate that co-feeding red porgy larvae with inert and live... |
| Tipo: Journal Contribution |
Palavras-chave: Fish larvae; Marine fish; Feeding; Feeding; Fish larvae; Http://aims.fao.org/aos/agrovoc/c_2838; Http://aims.fao.org/aos/agrovoc/c_2924. |
| Ano: 2006 |
URL: http://hdl.handle.net/1834/1556 |
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| Sánchez, M.F.; Garcia de la Rosa, S.B.. |
| Feeding of Argentine hake during winter 1994, between 50 and 370 m of depth, in the studied area (34°50'-47°S), is based on the consumption of zooplanktonic crustaceans, fishes and cephalopods. Maximum feeding incidence is found at 36°-40°S (51. ), in sea layer of 80-130 m deep (62. ) and between 8:00-10:00 hours (36,6. ). Cluster analysis shows five spatial groups, with similar length distributions and characteristic principal prey items combination. The males of all sizes show a trend to feed on euphausids and hiperiids amphipods. The females eat more quantities of hake, short fin squid and other fishes. There is a change in diet related with predator size, from 47 cm TL onwards for males, and from 53 cm TL for females. This change consists in a decrease... |
| Tipo: Journal Contribution |
Palavras-chave: Feeding; Cannibalism; Food organisms; Prey selection; Feeding; Cannibalism; Http://aims.fao.org/aos/agrovoc/c_2838; Http://aims.fao.org/aos/agrovoc/c_9580. |
| Ano: 1999 |
URL: http://hdl.handle.net/1834/1874 |
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| Fraga Castro, I.; Jaime Ceballos, B.. |
| Con el objetivo de optimizar el empleo del alimento balanceado en el engorde de Litopenaeus schmitti, se desarrollaron cuatro diseños experimentales a escala piloto y comercial en estanques de tierra fertilizados para evaluar: (A) interacción entre tasas de alimentación, niveles de proteína y densidad de siembra; (B) esquemas de alimentación; (C) interacción entre tasas y esquemas de alimentación; (D) escala comercial con los mejores resultados alcanzados. No se observó interacción entre los factores tasas de alimentación, densidad de siembra y calidad del alimento, sin embargo una interacción significativa se obtuvo entre niveles proteicos y densidades de siembra (p<0.05), así como entre las tasas de alimentación ensayadas. Los camarones alcanzaron... |
| Tipo: Journal Contribution |
Palavras-chave: Shrimp culture; Feeding. |
| Ano: 2011 |
URL: http://hdl.handle.net/1834/4381 |
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| Re, M.E.. |
| Four species of the family Octopodidae were reported to occur along the Argentine coast Octopus tehuelchus, Eledone massyae, Enteroctopus megalocyathus and Robsonella fontaniana. The first two are distributed from Brazil to south of Rawson and San Jorge Gulf, respectively, in warm-temperate waters. E.megalocyathus and R.fontaniana are of Subantarctic origin, the first ranging from San Matias Gulf to Magellan Strait, the Beagle Channel and Malvinas Islands; R.fontaniana is distributed from San Matias Gulf southwards, with records in North Patagonian and San Jorge Gulfs, Chile and Peru. A synopsis of information about taxonomical status, patterns of geographic distribution and biological aspects of these four coastal octopodids is given. |
| Tipo: Book Section |
Palavras-chave: Animal morphology; Feeding; Geographical distribution; Growth; Life cycle; Parasites; Reproduction; Feeding; Geographical distribution; Growth; Animal morphology; Life cycle; Parasites; Reproduction; Http://aims.fao.org/aos/agrovoc/c_2838; Http://aims.fao.org/aos/agrovoc/c_5083; Http://aims.fao.org/aos/agrovoc/c_3394; Http://aims.fao.org/aos/agrovoc/c_421; Http://aims.fao.org/aos/agrovoc/c_4317; Http://aims.fao.org/aos/agrovoc/c_5574; Http://aims.fao.org/aos/agrovoc/c_6507. |
| Ano: 1998 |
URL: http://hdl.handle.net/1834/2583 |
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| Arias, J.; Santos, M.; Newmark Umbreit, F.. |
| Todos los organismos han desarrollado evolutivamente mecanismos que les permiten defenderse de otros, garantizar su permanencia temporalmente y evitar el ataque de depredadores. Uno de estos mecanismos es la defensa química, mediante la cual los depredadores potenciales de los organismos son disuadidos de consumir su presa. En este estudio se evaluó la capacidad disuasora de los extractos orgánicos crudos de quince esponjas marinas del Caribe colombiano, sobre el pez arrecifal generalista Stegastes partitus. Se encontró que el extracto de Cribrochalina infundibulum actuó como un atrayente para estos depredadores potenciales, mientras que sólo los extractos de las esponjas Dragmacidon reticulata, Petromica cyocaliptoides, Neopetrosia proxima, Myrmekioderma... |
| Tipo: Journal Contribution |
Palavras-chave: Sponges; Predators; Feeding; Chemical ecology; Feeding deterrents. |
| Ano: 2011 |
URL: http://hdl.handle.net/1834/4399 |
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| 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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| Brunetti, N.E.; Ivanovic, M.L.; Elena, B.. |
| An update of the knowledge on the three most important ommastrephid species that inhabit the SW Atlantic: Illex argentinus, Martialia hyadesi and Ommastrephes bartramii, is presented. Up to the moment, only I.argentinus was intensively studied. Its distribution, population structure, reproduction, growth and paralarval development are analyzed, togheter with other aspects of its biology, such as feeding, predators and parasites. Also its utilization for human consmption is considered. Regarding M.hyadesi and O.bartrami, information on their distribution and biology is presented. |
| Tipo: Book Section |
Palavras-chave: Animal morphology; Geographical distribution; Reproduction; Fecundity; Growth; Feeding; Predators; Parasites; Population structure; Geographical distribution; Growth; Feeding; Predators; Population structure; Animal morphology; Reproduction; Fecundity; Parasites; Http://aims.fao.org/aos/agrovoc/c_5083; Http://aims.fao.org/aos/agrovoc/c_3394; Http://aims.fao.org/aos/agrovoc/c_2838; Http://aims.fao.org/aos/agrovoc/c_6163; Http://aims.fao.org/aos/agrovoc/c_6115; Http://aims.fao.org/aos/agrovoc/c_421; Http://aims.fao.org/aos/agrovoc/c_6507; Http://aims.fao.org/aos/agrovoc/c_15725; Http://aims.fao.org/aos/agrovoc/c_5574. |
| Ano: 1998 |
URL: http://hdl.handle.net/1834/2576 |
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| Figueroa, D.E.. |
| On the base of samples of congrid eels captured in the South Western Atlantic Ocean, between 34 degree S to 40 degree S and 30m to 400m depth, from research cruises, commercial fleet (low scale and coastal fishing) and specimens preserved in ichthyological collections, four species were determined: Ariosoma opistophthalmum, Conger orbignyanus, Bassanago albescens and Bassanago nielseni. The latter is the first record in the region. Diagnosis of taxa from Family Congridae to species is given. Morphology, reproduction, feeding and distribution of the fish species found from the region are compared and discussed, as well as those from other parts of the world. On the other hand, numerous samples of ichthyoplankton were obtained from research cruises carried... |
| Tipo: Theses and Dissertations |
Palavras-chave: Animal morphology; Taxonomy; Anatomy; Reproduction; Feeding; Geographical distribution; Fish larvae; Taxonomy; Feeding; Geographical distribution; Animal morphology; Anatomy; Reproduction; Fish larvae; Http://aims.fao.org/aos/agrovoc/c_7631; Http://aims.fao.org/aos/agrovoc/c_2838; Http://aims.fao.org/aos/agrovoc/c_5083; Http://aims.fao.org/aos/agrovoc/c_421; Http://aims.fao.org/aos/agrovoc/c_49890; Http://aims.fao.org/aos/agrovoc/c_6507; Http://aims.fao.org/aos/agrovoc/c_2924. |
| Ano: 1999 |
URL: http://hdl.handle.net/1834/1486 |
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| Toledo Pérez, J.; Botello León, A.; Llanes Iglesias, J.. |
| The objective of this work was to evaluate the biologic and economic effects of chemical fish silage as a unique animal protein source. Ensiled Opisthonema oglinum with three combinations of organic and inorganic acids: 3 % of formic acid; 2 % sulfuric acid 98 % and 2 % formic acid and other with 2,6 % phosphoric acid; 2,6 % of citric acid and 0,1 % of sodium benzoate. From each silage a moist diet was prepared and was compared with commercial food (20 % of fish meal) in Clarias gariepinus feeding during 60 days. There were not significant differences (p > 0,05), in growth, feed utilization and survival indicators. The economic analysis showed a fingerling production cost saves between 20 and 30 % for feeding concept. |
| Tipo: Journal Contribution |
Palavras-chave: Feeding; Feeding; Http://aims.fao.org/aos/agrovoc/c_2838. |
| Ano: 2009 |
URL: http://hdl.handle.net/1834/3449 |
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| Jaime Ceballos, B.; Tamayo Cuellar, L.. |
| Se realizó un ensayo bifactorial de 28 días, en condiciones de laboratorio, con el objetivo de determinar la combinación adecuada entre la tasa de alimentación y el nivel proteico en el alimento, para el cultivo a baja salinidad (2ups) de juveniles de camarón blanco Litopeneaus vannamei (Pérez-Farfante y Kensley, 1997) con peso húmedo promedio inicial de0.06g y 26mm de talla inicial promedio, procedentes de un criadero comercial (“YAGUACAM”; provincia Cienfuegos, Cuba). El nivel proteico y la tasa de alimentación fueron evaluados mediante la combinación de 4 proporciones de proteína (20, 25, 30 y 35%) en el alimento comercial (Api-Camarón®) y tres raciones: baja, media y alta, luego de estimar el (10, 15 y 20% de la biomasa) respectivamente. En... |
| Tipo: Preprint |
Palavras-chave: Feeding. |
| Ano: 2012 |
URL: http://hdl.handle.net/1834/4513 |
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| Registros recuperados: 233 | |
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