Fig 1.
Study area, Golfo San Matías and Península Valdés system (Golfo San José and Golfo Nuevo), Argentina.
The black line and the white one indicate the transects carried out during the coastal and zig-zag aerial surveys, respectively in the Golfo San Matías. The red areas indicate the hotspots in the respective gulf.
Fig 2.
Methodology used to carry out the coastal aerial survey.
In addition, the nearshore and offshore areas are shown in this figure.
Table 1.
Detail of the zig-zag aerial survey and estimation of the Sighting per Unit Effort index (SPUE) for the nearshore and offshore areas.
Fig 3.
Location of the whales recorded in the zig-zag aerial survey, with a detail of the area around Bahía San Antonio.
Each circle can indicate more than one right whale.
Table 2.
Details of the aerial surveys, and the maximum number of whales registered on each flight.
See Fig 1 for references.
Fig 4.
Changes in the proportion of whales in each group type observed throughout the season in GSM.
Fig 5.
Group types and number of whales per segment recorded on the flight in which the highest number of whales was recorded each year.
The dotted line in 2013 indicate the area that was not flown that year.
Fig 6.
Proportion of whales in each group type observed in each hotspot.
Table 3.
Parameter estimated, in the predictor scale, for the number of whales per kilometre surveyed in the different hotspots by the generalized linear model.
Table 4.
Parameter estimated, in the predictor scale, for the Tukey contrast for the generalized linear model.