Seasonal study of the nutritional composition of unexploited and low commercial value fish species from the Portuguese coast. Issue 10 (30th May 2022)

• Record Type: Journal Article
• Authors: Duarte, Ana M.; Silva, Frederica; Mendes, Susana; Pinto, Filipa R.; Barroso, Sónia; Silva, Elisabete; Neves, Ana; Sequeira, Vera; Magalhães, Maria Filomena; Rebelo, Rui; Assis, Carlos; Vieira, Ana Rita; Gordo, Leonel Serrano; Gil, Maria Manuel
• Is Part Of: Food science & nutrition. Volume 10:Issue 10(2022)
• Page Start: 3368
• Page End: 3379
• Publication Date: 2022-05-30
• Subjects: fish valorization -- nutritional composition -- seasonal variation -- sustainability -- unexploited species; Food industry and trade -- Periodicals; Food -- Periodicals; Nutrition -- Periodicals; 664
• DOI: 10.1002/fsn3.2937
• Languages: English
• ISSNs: 2048-7177

Abstract

Abstract: Target species diversification is essential for fisheries sustainability and fish market revitalization. Fish discards are a widely recognized problem resulting from fisheries worldwide, and are of major concern for all sector players, from administrations, to fishermen, and scientists. However, non‐target species are seldom studied, and information on nutritional profiles and seasonal changes in nutritional properties is generally lacking. This study assessed the seasonal nutritional composition of two unexploited ( Serranus cabrilla, Capros aper ) and three low commercial value fish species ( Trachurus picturatus, Spondyliosoma cantharus, and Trigla lyra ), captured on the Portuguese coast over 1 year. Significant seasonal variations were observed in the nutritional composition of all the species studied. Moisture and ash contents varied from 70% to 81% and from 5% to 13%, respectively. The maximum fat contents were 5% for C. aper and 4% for T. picturatus, allowing to classify all studied fishes as lean. The highest protein contents were recorded for C. aper (25%) and S. cantharus (20%). The unexploited and low commercial value fish species studied were shown to be good fat and protein sources, comparable to commonly consumed species, such as cod and salmon, having a great potential to become commonly consumed fish in Portugal. Abstract : Non‐target species are seldom studied and information on nutritional profiles and seasonal changes in nutritional properties is generally lacking. This study assessed the seasonal nutritional composition of two unexploited ( Serranus cabrilla, Capros aper ) and three low‐commercial value fish species ( Trachurus picturatus, Spondyliosoma cantharus and Trigla lyra ), captured off the Portuguese coast over one year. The unexploited and low‐commercial value fish species studied were shown to be good fat and protein sources, having a great potential to become commonly consumed fish in Portugal.