Regarding Newlands, N.K., Lutcavage, M.E., Pitcher, T.J. (2006) Atlantic bluefin tuna in the Gulf of Maine, I: Estimation of seasonal abundance accounting for movement, school and school-aggregation behaviour. Environmental Biology of Fishes 77:177–195 Newlands, N.K., Lutcavage, M.E., Pitcher, T.J. (2007) Atlantic bluefin tuna in the Gulf of Maine, II: precision of sampling designs in estimating seasonal abundance accounting for tuna behaviour. Environmental Biology of Fishes 78:000–000