Presentation - Gulf of Maine Research Institute

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Spawning site fidelity of Atlantic cod • Robichaud and Rose (2001) investigated the degree of multi-year fidelity to the Bar Haven spawning ground in Placentia Bay, Newfoundland. • A total of 48 cod were tagged in 1998. • Fish were monitored using active tracking during subsequent spawning seasons. • All relocated fish were within 10km of spawning site (most
Spawning site fidelity of Atlantic cod • Robichaud and Rose (2001) documented straying in cod that were unobserved during the spawning season. – Potential genetic exchange among adjacent populations. • A life history balance appears to exist between homing and straying that maintains population stability, while permitting recolonization of inactive spawning sites. – Accurate and prevalent homing would impede rapid recolonization.
Page 1 and 2: Spawning site fidelity and fine-sca
Page 3 and 4: Stock structure in the Gulf of Main
Page 5: Fine-scale population structuring
Page 9 and 10: Spawning cod in the Gulf of Maine
Page 15 and 16: Spawning cod in the Gulf of Maine S
Page 17 and 18: Synthesis of Stock Structure • Th
Page 19 and 20: Acknowledgments • This research h
Page 21: References Runge JA, A Kovach, J Ch

Presentation - Gulf of Maine Research Institute

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