. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 60 Time (s) 120-1 90-- 18° g 14 60-. -30 -18 14 0 Time (s) Figure 5. The angle of finlets 3 (triangle). 4 (diamond). 5A (gray square) and 5B (black square) to the .vv (A, anterior triangles. B, posterior triangles), v; (C. D), and .v; (E, F) planes over a stroke by a single individual at / s~'. Axial body bending is indicated by the position of the body (at the insertion of rinlet 5A) on the : axis (circles). The tail stroke is defined from minimum to maximum values of 5A
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 60 Time (s) 120-1 90-- 18° g 14 60-. -30 -18 14 0 Time (s) Figure 5. The angle of finlets 3 (triangle). 4 (diamond). 5A (gray square) and 5B (black square) to the .vv (A, anterior triangles. B, posterior triangles), v; (C. D), and .v; (E, F) planes over a stroke by a single individual at / s~'. Axial body bending is indicated by the position of the body (at the insertion of rinlet 5A) on the : axis (circles). The tail stroke is defined from minimum to maximum values of 5A Z; the duration of this stroke was approximately s. The angles at the time highlighted by the gray bar are plotted in 3-D space in Figure 8. The abrupt change in angles to the .vv plane in panels A and B (indicated by the dotted lines) is due to our measurement convention (see Fig. 3 and the methods section) and reflects the transition of the planar Imlct orientation across the body midline relative to the .vv reference plane, not a large movement by the (inlets. to the x~ plane are visible when the lateral view is rotated about 30° clockwise (Fig. 8B). Discussion Finlet morphology A detailed morphological description of the finlets of Scomberjaponicus is available in Nauen and Lauder (2000). and is useful for interpreting the three-dimensional pattern of movement. In brief, the finlets are on the order of I cm in length. A thin, clear membrane covers each finlet and attaches to the body. Jointed bony fin rays that extend to the distal tip of the fin stiffen each finlet. These rays articulate on a cartilaginous pad and are associated with muscles that appear to be homologous to the inclinator, depressor, and. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Marine Biological Laboratory (Woods Hole, Mas
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
