Introduction The traceability of fishery products imposes a precise identification of fish species to trade. The morphological identification of fishery products is generally practiced on whole fish applying the identification keys proposed by FAO. Scope The objective of this paper is describe the characteristics of freshness common to the species of the family "Carangidae" and those specific to certain species in particular. Also I want to give accurate information on how to recognize and morphological identification of different species and different genres that make up the family "Carangidae" emphasizing some of the features that allow to investigate potential fraud replacement. Materials and methods The camera used is a camera "Canon EOS20" with 18-55 mm lens. I performed a radiographic study for the highlight of the spine and other bony structures. Results Carangidae have 2 dorsal fins and the ventral fin in thoracic position. The body shape is extremely variable, present the caudal peduncle depending on the species or a lateral fairing moderately showy and dorsal and ventral grooves. The lateral line is more or less curved anteriorly and posteriorly straight up the base of the caudal fin. Some species have prominent badges that are bigger chips, thick and sometimes sharp on the lateral line. In this work I evidence that a radiologic image of spine can identify a Seriola dumerili (total vertebral number: 24) from Seriola lalandi (25): it is a non-invasive technique. The official method for the sensory evaluation of freshness of fish products is governed by EC Regulation 2406 / 96 that divides the fish into 4 categories (Extra, A, B and unsuitable) according to their degree of freshness. With Quality Index Method (QIM) you can get an estimate of the remaining shelf-life because it is linearly related to the storage time of fresh fish on ice.

Quality criteria of freshness and anatomical-morphological characters distinguishing the species belonging to the family Carangidae

QUAGLIO, FRANCESCO;
2013

Abstract

Introduction The traceability of fishery products imposes a precise identification of fish species to trade. The morphological identification of fishery products is generally practiced on whole fish applying the identification keys proposed by FAO. Scope The objective of this paper is describe the characteristics of freshness common to the species of the family "Carangidae" and those specific to certain species in particular. Also I want to give accurate information on how to recognize and morphological identification of different species and different genres that make up the family "Carangidae" emphasizing some of the features that allow to investigate potential fraud replacement. Materials and methods The camera used is a camera "Canon EOS20" with 18-55 mm lens. I performed a radiographic study for the highlight of the spine and other bony structures. Results Carangidae have 2 dorsal fins and the ventral fin in thoracic position. The body shape is extremely variable, present the caudal peduncle depending on the species or a lateral fairing moderately showy and dorsal and ventral grooves. The lateral line is more or less curved anteriorly and posteriorly straight up the base of the caudal fin. Some species have prominent badges that are bigger chips, thick and sometimes sharp on the lateral line. In this work I evidence that a radiologic image of spine can identify a Seriola dumerili (total vertebral number: 24) from Seriola lalandi (25): it is a non-invasive technique. The official method for the sensory evaluation of freshness of fish products is governed by EC Regulation 2406 / 96 that divides the fish into 4 categories (Extra, A, B and unsuitable) according to their degree of freshness. With Quality Index Method (QIM) you can get an estimate of the remaining shelf-life because it is linearly related to the storage time of fresh fish on ice.
2013
VPH emerging issues at the animal-human- environment interface
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11577/2837853
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