1Gaspar, M.B.; Barracha, I.; Carvalho, S.; Vasconcelos, P. Clam Fisheries Worldwide: Main Species, Harvesting Methods and Fishing Impacts. In Clam Fisheries and Aquaculture; Da Costa González, F., Ed.; Nova Science Publishers: Hauppauge, NY, USA, 2013; pp. 291–327.
2Gaspar, M.B.; Barracha, I.; Carvalho, S.; Vasconcelos, P. Clam Fisheries Worldwide: Main Species, Harvesting Methods and Fishing Impacts. In Clam Fisheries and Aquaculture; Da Costa González, F., Ed.; Nova Science Publishers: Hauppauge, NY, USA, 2013; pp. 291–327.
3Fisheries and Oceans Canada, the Government of Canada. Notice to recreational fishermen.