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Master Thesis

Stock assessment of the American lobster stock (Homarus americanus) in the French archipelago of Saint Pierre & Miquelon

Abstract : American lobster (Homarus americanus) is one of the most targeted species on the Northeastern American coast. In Canada, 90,000 tons of lobster are landed each year. On the French archipelago of Saint-Pierre & Miquelon, the lobster fishery has developped in response to the declined the snow crab landings. However, no studies on the lobster population have yet been conducted. There is an overall TAC of 30 tons, not however based on scientific advice, since no scientific study has yet been conducted on this stock. First, environmental survey probes have been placed in the archipelago fishermen's traps, which will provide a better understanding of the environmental characteristics of the lobster fishing areas. Then, concentrators recording the GPS position were also installed on the boats of the archipelago. These GPS data provided a map of the different fishing zones, as well as to quantify the fishing pressure applied to them. Finally, field surveys and data collection from different sources were carried out during this internship. These field data aimed to complete two objectives. First, the biological characteristics of the lobster population have been studied. Then, these size-structured data were used to feed a stock assessment model using the pseudo-cohort method, which was adjusted for abundance and effort over the analysis period
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Master Thesis
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Submitted on : Wednesday, November 20, 2019 - 11:30:36 AM
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Anaïs Roussel. Stock assessment of the American lobster stock (Homarus americanus) in the French archipelago of Saint Pierre & Miquelon. Life Sciences [q-bio]. 2019. ⟨dumas-02372122⟩

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