Fisheries and biodiversity along Mediterranean Sea: Italian and Egyptian coast overview

Abstract

Mediterranean fish species living along Italian (Gaeta) and Egyptian (Alexandria) coasts were analyzed using DNA barcodes for molecular identification. Mitochondrial Cytochrome c Oxidase subunit 1 (COI) gene was sequenced from 31 different marine species to test whether the morphology-based assignment of individuals into 19 families, 6 orders was supported by DNA-based species delimitation and Neighbour Joining cladogram. All COI rRNA gene barcodes were matched with reference sequences of expected species, according to morphological identification. Neighbour joining tree was drawn based on COI rRNA gene and the majority of specimens clustered in agreement with their taxonomic classification. Our results updated Mediterranean edible fish knowledge providing graphical resources, taxonomical and bioinformatics references, improving the genetic fish database and the basic molecular information to strengthen the science-policy interface for biodiversity and ecosystem services as conservation, blue economy, and long-term human well-being.

Advances in Egyptian Mediterranean Coast Climate Change Monitoring

“…The total number of non-indigenous species was higher than in years before 1991 (data available in Farrag et al [58]). Many bioinvader sightings have been identified during the collection done by the authors in Alexandria [42], confirming the literature examined.…”

“…Studies on biodiversity in the Mediterranean highlight an increase in the number of non-indigenous species [32][33][34][35][36][37][38][39] and report on methods to accurately detect their presence [40,41]. Tropicalization and southernization phenomena are also evidenced by DNA barcoding analysis [40][41][42]. At present, many climate studies focus on forecasting models based on emission scenarios and on bioinvasions, and seek an answer to objective 13 of Agenda 2030 integrating diverse methodologies [43][44][45][46].…”

Comparative Fatty Acid Profiling of Edible Fishes in Kuala Terengganu, Malaysia

“…Table 1 indicates that the barcoded specimens that were reliably assigned binomial names a priori possessed distinct COI sequences and could be aligned and referred to the sequenced specimens already published. As known, barcoding is defined as the use of a standardized short region of DNA to verify species identity, which for fish is typically the COI region of mitochondrial DNA, with the generation of publicly accessible and highly comparable data using GenBank [5,42,43].…”

“…Accurate species identification and toxicity assessment are fundamental when referring to edible fishes. The ability to correctly characterize organisms is rarely questioned when morphological and biochemical or molecular identification is reported [3][4][5]. Furthermore, the levels…”

Biological responses of white sea bream (Diplodus sargus, Linnaeus 1758) and sardine (Sardine pilchardus, Walbaum 1792) exposed to heavy metal contaminated water

“…When comparing the DNA damage among sampled fish for the same area it's clear that; white Sea bream showed DNA damage levels more than Sardine fish. The different answer to xenobiotics is related to the species-specificity and this is the reason why it is important the samples discrimination (Di Finizio et al, 2007;Mazzeo 2008;Guerriero et al, 2017c) Previous studies also indicated that El-Max bay is considered from the highly polluted sites when compared to other sites in Alexandria coast (Saad et al, 2017). El-Max bay suffered from continuous major drastic changes resulting from human activities; untreated industrial waste, domestic sewage, shipping industry and agricultural runoff which are being released into the bay (Abo-Taleb et al, 2015).…”