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Registros recuperados: 10 | |
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Ivanovic, M.L.. |
The information gathered during four research cruises carried out in January and February of 2006, 2007 and 2008 allowed to analyze the summer feeding pattern of Illex argentinus squid in the shelf and slope of the Patagonian region (43º S-51º S), SW Atlantic Ocean. Intake, that took place during daytime, had its peak as of midday. Of the preys eaten amphipods and euphausiids, two groups of zooplanktonic organisms, represented 71-99% of the diet. The most frequent preys found in three of the four cruises corresponded to amphipods, represented by a single species, the hyperiid Themisto gaudichaudii, that accounted for over 50% of the food consumed. When depth of the catching area was beyond 100 m an increase in consumption of squid and fish by specimens... |
Tipo: Journal Contribution |
Palavras-chave: Feeding behaviour Predation Stomach content Fishery surveys Illex argentinus Atlántico Sudoccidental; Argentina marine environment. |
Ano: 2010 |
URL: http://hdl.handle.net/1834/4224 |
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Brunetti, N.E.; Ivanovic, M.L.; Sakai, M.. |
An overview of the available information on the commercially important squid species distributed in the Argentine Sea and adjacent zones is given. It includes the most representative characteristics to identify the species and general information on their biology, distribution and fisheries. A biological sampling designis presented, with particular emphasis on the identification of sexual maturity stages. The world market of the squid resources has considerably risen in the last decades and one of the most important fishery zones is placed in the Southwest Atlantic region (Area 41, FAO), where squid represent 25. of the total landings. Illex argentinus, sustains the second fishery in volume, with landings reaching 612.000 tonnes in 1999. Other species,... |
Tipo: Book |
Palavras-chave: Squid fisheries; Geographical distribution; Animal morphology; Sexual maturity; Biological sampling; Commercial fishing; Landing statistics; Geographical distribution; Animal morphology; Sexual maturity; Http://aims.fao.org/aos/agrovoc/c_5083; Http://aims.fao.org/aos/agrovoc/c_421; Http://aims.fao.org/aos/agrovoc/c_7016. |
Ano: 1999 |
URL: http://hdl.handle.net/1834/2336 |
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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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Ivanovic, M.L.; Brunetti, N.E.. |
The morphology and histology of the digestive tract of the Argentine short-finned squid Illex argentinus are described. The structures involved are the buccal mass, oesophagus, vestibulum, stomach, caecum, intestine, digestive gland and digestive duct appendages. A differential development of the tissular components in relation to the function of each organ is observed. The musculature of the buccal mass, oesophagus and stomach, organs involved in the mechanical degradation of food is strongly developed. This development is weaker in the caecum where enzymatic digestion and absorption take place and in the intestine. For the same reason, the epithelia of the mucosae of the oesophagus and stomach secrete a thick cuticle whereas those of the caecum and... |
Tipo: Journal Contribution |
Palavras-chave: Digestive system; Organism morphology; Histology; Digestive system; Http://aims.fao.org/aos/agrovoc/c_2275. |
Ano: 2002 |
URL: http://hdl.handle.net/1834/1582 |
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Brunetti, N.E.; Ivanovic, M.L.. |
A description of Illex argentinus beaks, made on the basis of qualitative and quantitative characteristics, is presented. Likewise the equations that represent the relationships between the rostral length of each beak with the mantle length and total weight of squids are proposed, as a tool for reconstructing them. A total of 291 squids, comprising the complete size range, from juveniles to adults,were analyzed for the latter purpose. The morphometric description was made on a total of 90 individuals from the Argentine Sea, taking the following measurements on each beak: rostral length, hood length,crest length, wing length and wing width. Results showed that Illex argentinus beaks present the general scheme of that corresponding to the Ommastrephidae... |
Tipo: Journal Contribution |
Palavras-chave: Animal morphology; Morphometry; Squid culture; Animal morphology; Http://aims.fao.org/aos/agrovoc/c_421. |
Ano: 1997 |
URL: http://hdl.handle.net/1834/1926 |
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Brunetti, N.E.; Ivanovic, M.L.; Rossi, G.R.; Elena, B.; Benavides, H.R.; Guerrero, R.A.; Blanco, G.; Marchetti, C.; Piñero, R.. |
The distribution, abundance and population structure of Illex argentinus in relation to the oceanographic conditions during summer 1997, were analyzed as a result of the research cruise carried out by R/V Shinko Maru No.3 on the Argentine shelf (39-50°30'S). Besides, abundance and biological features of Ommastrephes bartrami are analyzed. The main activities carried out during the cruise included jigging operations, tagging (only for I. argentinus) and biological sampling. In addition, meteorological and oceanographic data were collected. A total of 30,2000 individuals were tagged and released. The recapture rate was 0.156. (47 recoveries/30,200 released), considerably higher than that of 1996 (0.030; 4 recoveries/13,191 released). I. argentinus was... |
Tipo: Journal Contribution |
Palavras-chave: Fishery surveys; Abundance; Population structure; Tagging; Cruise reports; Population structure; Tagging; Http://aims.fao.org/aos/agrovoc/c_6115; Http://aims.fao.org/aos/agrovoc/c_14775. |
Ano: 2000 |
URL: http://hdl.handle.net/1834/2537 |
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Registros recuperados: 10 | |
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