Seasonal Variation in Proximate Composition and Fatty Acid Profile of Grey Triggerfish (Balistes capriscus) Captured Along the Coast of Portugal

The proximate composition and fatty acid profile of five tissues (head, skin, bones, muscle and liver) of juvenile Siganus guttatus fed with Enteromorpha prolifera were investigated. The results indicated that: (1) The content of protein and fat among these five tissues showed a significant differences (P Lass Than 0.05). The muscle has the highest content of protein and the lowest content of fat. (2) The highest content of fatty acid in SFA is 16:0 in all five tissues, the highest content of fatty acid in MUFA is18:1n-9c (cis) in skin, bones, muscle and liver, while the highest content of PUFA is DHA in muscle. Muscle contained the highest value of DHA and EPA, the total content was more than 100 times in bones. Muscle tissue is rich in many important polyunsaturated fatty acids such as EPA, DPA, DHA, ARA and ALA, which has better nutritional quality and immune and health function.

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Comparative assessment of proximate composition, physicochemical parameters, fatty acid profile and mineral content in farmed and wild rainbow trout (Oncorhynchus mykiss)

International Journal of Food Science & Technology ◽

10.1111/j.1365-2621.2011.02554.x ◽

2011 ◽

Vol 46 (4) ◽

pp. 767-773 ◽

Cited By ~ 29

Author(s):

Aziz A. Fallah ◽

S. Siavash Saei-Dehkordi ◽

Amin Nematollahi

Keyword(s):

Fatty Acid ◽

Rainbow Trout ◽

Oncorhynchus Mykiss ◽

Fatty Acid Profile ◽

Proximate Composition ◽

Physicochemical Parameters ◽

Mineral Content ◽

Comparative Assessment ◽

Rainbow Trout Oncorhynchus Mykiss

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Temporal variation in the fatty acid composition of ovigerous females and embryos of the squat lobster Pleuroncodes monodon (Decapoda, Munididae)

Journal of the Marine Biological Association of the United Kingdom ◽

10.1017/s002531541700145x ◽

2017 ◽

Vol 98 (8) ◽

pp. 1977-1990 ◽

Cited By ~ 4

Author(s):

Miguel Bascur ◽

Fabián Guzmán ◽

Sergio Mora ◽

Pepe Espinoza ◽

Ángel Urzúa

Keyword(s):

Fatty Acids ◽

Fatty Acid Composition ◽

Seasonal Variation ◽

Fatty Acid ◽

Fatty Acid Profile ◽

Acid Composition ◽

Lipid Content ◽

Humboldt Current ◽

Fishery Resource ◽

Key Species

Pleuroncodes monodon, an important fishery resource and key species in the Humboldt Current Large Marine ecosystem, has a prolonged reproductive period from winter until end of summer, and during this time females incubating their embryos are exposed to seasonal variation in food availability and in temperature. Additionally, in order to ensure successful reproduction and survival of embryos, changes occur in the main internal reserves and/or sources of energy of P. monodon. The aim of this study was to determine the extent of seasonal variation (winter vs summer) in the lipid content and fatty acid composition of ovigerous females and their embryos. The results show that a higher percentage of saturated and polyunsaturated fatty acids are found in females in winter. Similarly, the composition of fatty acids in embryos found here indicates that winter embryos have more saturated fatty acids and essential fatty acids (C18:2n6cis, C18:3n6 and C22:6n3) than do summer embryos. According to PCA analysis of fatty acid profile, samples from summer may be distinguished into two isolated groups with conspicuous variations in fatty acids profile of embryo and hepatopancreas. While in winter, the opposite pattern occurs in the fatty acid profile of embryo and hepatopancreas. These variations may be related to relevant physiological processes (reproduction and growth) and of their ontogeny (development and survival of offspring). Seasonal variation in the lipid content and composition of fatty acids of P. monodon could directly impact this species’ reproduction and survival and subsequently could have consequences on the food web and fishery exploitation.

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