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Fig. 4 in Photo-identification as a technique for recognition of individual fish: a test with the freshwater armored catfish Rineloricaria aequalicuspis Reis & Cardoso, 2001 (Siluriformes: Loricariidae)

Fig. 4. Percentage of correct matches (a) and expended minutes (b) between naked-eye and computer-assisted field test photo-identification for individual recognition of Rineloricaria aequalicuspis (n = 9). Boxplots show median (central thicker line), first and third quartile (box limits), 95% confidence interval of median (whiskers), and outliers.

Fig. 3 in Photo-identification as a technique for recognition of individual fish: a test with the freshwater armored catfish Rineloricaria aequalicuspis Reis & Cardoso, 2001 (Siluriformes: Loricariidae)

Fig. 3. Variation in number, shape, size and organization of the bony plates covering the abdominal surface of six different Rineloricaria aequalicuspis individuals with more than 10 cm total length. These are examples of photographs taken during the field test. (a) 175 mm TL; (b) 138 mm TL; (c) 156 mm TL; (d) 145 mm TL; (e) 141 mm TL; (f) 151 mm TL.

Fig. 2 in Photo-identification as a technique for recognition of individual fish: a test with the freshwater armored catfish Rineloricaria aequalicuspis Reis & Cardoso, 2001 (Siluriformes: Loricariidae)

Fig. 2. Diagram showing the steps employed to assess the performance of photo-identification technique in laboratory (a) and field (b) conditions for Rineloricaria aequalicuspis.

Fig. 1 in Photo-identification as a technique for recognition of individual fish: a test with the freshwater armored catfish Rineloricaria aequalicuspis Reis & Cardoso, 2001 (Siluriformes: Loricariidae)

Fig. 1. Lateral, dorsal and ventral views of a Rineloricaria aequalicuspis individual (110 mm TL). Ventral view shows the arrangement of the abdominal plates. Photograph courtesy of L. R. Malabarba.

Figure 3 in New non-invasive photo-identification technique for free-ranging giant anteaters (Myrmecophaga tridactyla) facilitates urgently needed field studies

Figure 3. Example of 4 years of consistent morphologic characteristics of a giant anteater (Myrmecophaga tridactyla). Variations in boldness of the drop-shaped black spot are typical for varying light situations. Uncommon are some white hairs within the black flag, the white 'blob' in the stripe above it and the ear shape. Photo by Lydia Möcklinghoff in the Brazilian Pantanal.

Figure 2 in New non-invasive photo-identification technique for free-ranging giant anteaters (Myrmecophaga tridactyla) facilitates urgently needed field studies

Figure 2. Example of coded photo-ID of four individual giant anteaters (Myrmecophaga tridactyla) sighted in the Brazilian Pantanal. For every picture the date, time and locality of the sighting were recorded. The arrows point to biometric traits that enable discrimination of individuals. These have been categorised in Table 1; stars refer to categories in this matrix (*foreleg, **bracelet, ***stripe, ****scars). As an example, the animals are here only shown from one lateral side. In practice, other photographs, preferably of both lateral sides as well as the front, were considered for the coding of the matrix and the catalogue. Photos by Lydia Möcklinghoff.

Figure 4 in New non-invasive photo-identification technique for free-ranging giant anteaters (Myrmecophaga tridactyla) facilitates urgently needed field studies

Figure 4. Relation between number of individuals classified by volunteers and grade of interobserver agreement relative to the identity assigned to individual giant anteaters by the first author.

Figure 1 in New non-invasive photo-identification technique for free-ranging giant anteaters (Myrmecophaga tridactyla) facilitates urgently needed field studies

Figure 1. Map of the study area, Fazenda Barranco Alto in the Southern Pantanal. The inset indicates its location in Brazil.