452
became visible, they are photographed (Groch et al. 2005). From the airplane, the
whales were circled until all animals were photographed. The methodology for taking and analyzing photographs was developed by Payne et al. (1983). An approach
is halted if it appear to change the whales’ behavior, even if it results in not photographing all of the counted whales. Number of individuals, group composition and
Fig. 16.9 Survey team on board a helicopter used for the aerial surveys for locate and photographing right whales off Southern Brazil. (a, b) Main observer searching for whales and taking notes,
(c) Second observer taking photographs of whales sighted
K. Groch
became visible, they are photographed (Groch et al. 2005). From the airplane, the
whales were circled until all animals were photographed. The methodology for taking and analyzing photographs was developed by Payne et al. (1983). An approach
is halted if it appear to change the whales’ behavior, even if it results in not photographing all of the counted whales. Number of individuals, group composition and
Fig. 16.9 Survey team on board a helicopter used for the aerial surveys for locate and photographing right whales off Southern Brazil. (a, b) Main observer searching for whales and taking notes,
(c) Second observer taking photographs of whales sighted
K. Groch