Lipid and fatty acid composition of early stages of cephalopods: an approach to their lipid requirements

Navarro, Juan Carlos; Villanueva, Roger

doi:10.1016/s0044-8486(99)00290-2

Cited by 183 publications

(213 citation statements)

References 40 publications

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“…Seafood polyunsaturated fatty acids (PUFA) are rich in long-chains of x-3 (Chow, 2008;Miliou et al, 2006;Navarro and uum source flame atomic absorption spectrometry (HR-CS-FAAS). The applied ma-trix modifiers for high-resolution continuum source graphite furnace atomic absorption spectrometry (HR-CS-GFAAS) determinations were 1% v/v NH4H2PO4 Villanueva, 2000;Salman et al, 2007), with a recognized imporfor Cd and Pb analyses, 1% v/v Mg(NO3)2 for Cr and Fe, 0.05% v/v Mg(NO3)2 for Ni tance in the prevention of several of the modern health disorders (Russo, 2009).…”

Section: Introductionmentioning

confidence: 99%

“…The applied ma-trix modifiers for high-resolution continuum source graphite furnace atomic absorption spectrometry (HR-CS-GFAAS) determinations were 1% v/v NH4H2PO4 Villanueva, 2000;Salman et al, 2007), with a recognized imporfor Cd and Pb analyses, 1% v/v Mg(NO3)2 for Cr and Fe, 0.05% v/v Mg(NO3)2 for Ni tance in the prevention of several of the modern health disorders (Russo, 2009). As a marine resource, squids are nutritionally valu-able regarding their concentrations in docosahexaenoic acid (DHA) and eicosapentanoic acid (EPA), described as having hypotriacylglycerolemic, antiarrhythmic, antiatherogenic, antithrombotic and antiinflammatory properties.…”

Section: Introductionmentioning

confidence: 99%

“…To the best of our knowledge, information about fatty acids composition, cholesterol and vitamin E concentrations in commer-cially available squids is scarce and even scarcer for squids other than the L. vulgaris species (Passi et al, 2002;Villanueva et al, 2009;Miliou et al, 2006;Navarro and Villanueva, 2000;Ozogul et al, 2008;Salman et al, 2007). Cholesterol concentration was previously described for L. gahi (García-Garrido et al, 2011;Valver-de et al, 2012) and L. duvaucelii (Mathew et al, 1999;Uddin et al, 2001), while vitamin E data were only found for L. vulgaris (Passi et al, 2002;Villanueva et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

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Commercial squids: Characterization, assessment of potential health benefits/risks and discrimination based on mineral, lipid and vitamin E concentrations

Torrinha

Gomes

Oliveira

et al. 2014

Food and Chemical Toxicology

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The most consumed squid species worldwide were characterized regarding their concentrations of min-erals, fatty acids, cholesterol and vitamin E. Interspecific comparisons were assessed among species and geographical origin. The health benefits derived from squid consumption were assessed based on daily minerals intake and on nutritional lipid quality indexes. Squids contribute significantly to daily intake of several macro (Na, K, Mg and P) and micronutrients (Cu, Zn and Ni). Despite their low fat concentration, they are rich in long-chain omega-3 fatty acids, particularly docosahexaenoic (DHA) and eicosapentanoic (EPA) acids, with highly favorable x-3/x-6 ratios (from 5.7 to 17.7), reducing the significance of their high cholesterol concentration (140-549 mg/100 g ww). Assessment of potential health risks based on minerals intake, non-carcinogenic and carcinogenic risks indicated that Loligo gahi (from Atlantic Ocean), Loligo opalescens (from Pacific Ocean) and Loligo duvaucelii (from Indic Ocean) should be eaten with moderation due to the high concentrations of Cu and/or Cd. Canonical discriminant analysis identified the major fatty acids (C14:0, C18:0, C18:1, C18:3x-3, C20:4x-6 and C22:5x-6), P, K, Cu and vitamin E as chemical discriminators for the selected species. These elements and compounds exhibited the potential to prove authenticity of the commercially relevant squid species.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Commercial squids: Characterization, assessment of potential health benefits/risks and discrimination based on mineral, lipid and vitamin E concentrations

Torrinha

Gomes

Oliveira

et al. 2014

Food and Chemical Toxicology

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“…To lessen the risk and bring costs down, it is necessary to have available a dependable source of juveniles at a stable price, which will only be possible when they can be produced artificially. Indeed, this has been the object of several studies in recent years in Spain (Villanueva, 1995Iglesias et al, 1996Iglesias et al, , 1997Iglesias et al, and 2000Navarro and Villanueva, 2000;Roo et al, 2003;Villanueva et al, 2003) and, although results have been disappointing so far, such research will undoubtedly lead to the mass production of juveniles in the future, as in the case of turbot and sea-bream. However, the cost of any juveniles produced must be below the threshold price or, if the margin is very narrow, the productive capacity of installations must be increased (by increasing the number of cages); this assumes, of course that such economics of scale are applicable to octopus, which seems likely.…”

Section: Discussionmentioning

confidence: 99%

Cost analysis of octopus ongrowing installation in Galicia [Spain]

García¹,

González

Garcı́a

2004

Span. j. agric. res.

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Recent years have seen the opening of several octopus fattening installations in Galicia with varying results, although such installations, in principle, do show promise. The technology for rearing octopus is scant since the full biological cycle cannot as yet be reproduced in captivity and the production system is based on capturing juveniles in the wild, containing them in different types of cage and feeding them with trawled species of little commercial value. Given the present state of our knowledge, then, it is particularly interesting to carry out economic studies that look at the viability of such fattening installations from a cost analysis point of view, both to evaluate the present system and to look at possible future alternatives. To do this we have defined a model installation based on the installations operating in Galicia and using the same techniques and methods. The minimum size of the installation is established as 43 cages with an annual production of 38,728 kg, a minimum selling price of 5.80 € kg -1 , a maximum buying price of juveniles of 4.58 € kg -1 , maximum price of buying feed of 0.155 €, a benefit/cost index of 4.11% and benefit/investment index of 1.81%. The cost analysis indicates that, in the present circumstances, this is a business involving low profits and high risk, not only because the variable costs are high, but also because the margins of the parameters analysed are very narrow and the benefits closely depend on variations in costs.Key words: break-even point, aquaculture economics. Resumen Análisis de costes de una explotación tipo de engorde de pulpo (Octopus vulgaris) en GaliciaDurante los últimos años se han creado algunas empresas en Galicia para el engorde del pulpo, con resultados dispares, aunque, en principio, han mostrado el gran potencial que tiene el cultivo de esta especie. Sin embargo, la tecnología disponible actualmente es escasa, no habiéndose cerrado aún de forma artificial el ciclo biológico, por lo que el sistema de producción se basa en la captura de juveniles en el medio natural, estabulación en distintos tipos de jaulas, y alimentación con distintas especies de crustáceos y peces de bajo valor comercial, fundamentalmente descartes de la pesca de arrastre. En esta situación es particularmente interesante realizar estudios económicos en el ámbito de la viabilidad y la analítica de costes tanto para evaluar el sistema actual de engorde, como las posibles alternativas futuras. Para ello se ha establecido una explotación tipo, que está basada en las explotaciones existentes en Galicia y en la que se utilizan los métodos y técnicas actualmente disponibles. En base a ello se ha determinado el tamaño míni-mo de explotación (43 jaulas, producción anual de 38.728 kg), precio mínimo de venta (5,80 € kg -1 ), precio máximo de adquisición de juveniles (4,58 € kg -1 ) y precio máximo de adquisición de alimento (0,155 € kg -1 ), así como el ín-dice beneficio/costes de explotación (4,11%) y el índice beneficio/inversión (1,81%). El análisis de costes indica q...

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“…As regards to live prey, spider crab was preferred and induced better performance, probably for its high content in the essential fatty acids (EFA), particularly in arachidonic acid (ARA) (Iglesias et al, 2007). A mix of Artemia and inert diet (Navarro and Villanueva, 2000), and millicapsules (Villanueva et al, 2002;Navarro and Villanueva, 2003) was also tested, thus obtaining reduced growth performance and a survival limited to first month.…”

Section: Larval Rearing and Feedingmentioning

confidence: 99%

Molluscs and echinoderms aquaculture: biological aspects, current status, technical progress and future perspectives for the most promising species in Italy

Parisi

Centoducati

Gasco

et al. 2012

Italian Journal of Animal Science

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Shellfish aquaculture is a widespread activity in the Italian peninsula. However, only two bivalve species are mainly cultured along the coastline of that country: the Mediterranean mussel Mytilus galloprovincialis and the Manila clam Venerupis philippinarum (Ruditapes philippinarum). By contrast, just a few other mollusc species of commercial interest are scarcely reared at a small-scale level.After analysing the current status of Italian shellfish production, this paper reports and discusses the potential for culturing several different invertebrate species [i.e., the European flat oyster Ostrea edulis, the grooved carpet shell Venerupis decussata (Ruditapes decussatus), the razor clams Ensis minor and Solen marginatus, the cephalopod Octopus vulgaris, and the purple sea urchin Paracentrotus lividus] in this country.In addition, a detailed overview of the progress made in aquacultural techniques for these species in the Mediterranean basin is presented, highlighting the most relevant bottlenecks and the way forward to shift from the experimental to the aquaculture phase. Finally, an outlook of the main economic and environmental benefits arising from these shellfish culture practices is also given.

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Lipid and fatty acid composition of early stages of cephalopods: an approach to their lipid requirements

Cited by 183 publications

References 40 publications

Commercial squids: Characterization, assessment of potential health benefits/risks and discrimination based on mineral, lipid and vitamin E concentrations

Commercial squids: Characterization, assessment of potential health benefits/risks and discrimination based on mineral, lipid and vitamin E concentrations

Cost analysis of octopus ongrowing installation in Galicia [Spain]

Molluscs and echinoderms aquaculture: biological aspects, current status, technical progress and future perspectives for the most promising species in Italy

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