Data for Genetic sex and origin of Atlantic Bluefin Tuna ...
Knowledge about sex-specific difference in life history traits – like growth, mortality, or behaviour – is of key importance for management and conservation as these parameters are essential for predictive modeling of population sustainability. We applied a newly developed molecular sex-identificati...
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| Format: | Dataset |
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Technical University of Denmark
2024
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| Online Access: | https://dx.doi.org/10.11583/dtu.26762854.v1 https://data.dtu.dk/articles/dataset/Data_for_Genetic_sex_and_origin_of_Atlantic_Bluefin_Tuna/26762854/1 |
| Summary: | Knowledge about sex-specific difference in life history traits – like growth, mortality, or behaviour – is of key importance for management and conservation as these parameters are essential for predictive modeling of population sustainability. We applied a newly developed molecular sex-identification method, in combination with a SNP (Single Nucleotide Polymorphism) panel for inferring the population of origin, for more than 300 large Atlantic bluefin tuna (ABFT) collected over several years from newly reclaimed feeding grounds in the Northeast Atlantic. The vast majority (95%) of individuals were genetically assigned to the eastern Atlantic population, which migrates between spawning grounds in the Mediterranean and feeding grounds in the Northeast Atlantic. We found a consistent pattern of a male bias among the eastern Atlantic individuals, with a four year mean of 63% males (59 – 65%). Males were most prominent within the smallest (<230 cm) and largest (>250 cm) length classes, while the sex-ratio ... |
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