Genetic investigation of population structure in Atlantic chub mackerel, Scomber colias Gmelin, 1789 along the West African coast

• Main Authors: Sbiba, Salaheddine, Quintela, Maria, Øyro, Johanne, Dahle, Geir, Jurado-Ruzafa, Alba, Iita, Kashona Theopolina, Nikolioudakis, Nikolaos, Bazairi, Hocein, Chlaida, Malika
• Format: Dataset
• Language: English
• Published: Havforskningsinstituttet 2023
• Subjects: Fridtjof; The ''Y''; Fridtjof Nansen
• Online Access: https://hdl.handle.net/11250/3072605

Scomber colias is an ecologically and economically valuable species, which is targeted by industrial and artisanal fisheries throughout its geographical distribution. Some 1,169 fish were collected by trawl onboard the R.V. “Dr. Fridtjof Nansen” in the coastal waters stretching from Morocco (~28°N) to Namibia (~22°S) and genotyped at a suite of 8 microsatellite loci. None of the statistical procedures utilized managed to detect any significant population structure. Likewise, no marker was depicted to deviate from neutral expectations. Information is provided in an excel file (Scomber colias_microsatellite raw data.xlxs) that contains three spreadsheets: 1. Geographic coordinates for each of the sampling sites that were merged into larger samples for genetic analysis. 2. Raw data for microsatellite genotypes 3. Microsatellites data in GenAlEx format ready for exportation in different file formats. In addition, a pdf file (Scomber_Allele distribution.pdf) containing frequency of each allele per locus across all samples is provided. It contains a plot per locus with allele sizes (bp) in the X-axis and number of individuals in the Y-axis.