Divkovic, A.: Size of bottlenose
dolphin *(Tursiops truncatus) *tail flukes from
the

Abstract

The
meaning of this review was to estimate size of bottlenose dolphin tail flukes *(Tursiops
truncatus) *from the ^{0}'^{0053} *^{lolal} ^{body} ^{Ienglh}
^{in} ^{cm} (correlation factor R^{2}=0,8212) and tail
flukes spread in cm = 0,1579 x body mass in kg + 30,207 (correlation factor
R"=0,7274). If the sex of the dolphin is known, more precise results can
be gain using equations: tail flukes spread in cm = 0,2663 x total body length
in cm - 8,5152 (correlation factor R =0,8227) for males and tail flukes spread
in cm = 0,14871 x e^{0}'^{0053} *^{lolal} ^{body}
^{lenglh} ^{in} ^{cm} (uz R^{2}=0,8393) for
females. Total body length can be estimated, if tail flukes spread is measured,
using equations: total body length in cm = 3,2168 xtail flukes spread in cm +
60,303 (correlation factor R =0,8132) if the sex of the dolphin is not known,
or total body length in cm = 3,0895 x tail flukes spread in cm + 69,627
(correlation factor R =0,8227) for males and total body length in cm = 3,2907 x
tail flukes spread in cm + 54,685 (correlation factor R"=0,8051) for
females. Correlation factors for dolpins age and tail flukes spread are
R"=0,6963 for males and R"=0,7291 for females. Tail flukes width has
a higher correlation factor with total body length (R"=0,8531) then with
body mass (R =0,7895). If total body length is measured, tail flukes width can
be estimated usin equations: tail flukes width in cm = 6,1625 x e^{0}'^{0039}
*^{lolal} ^{body} ^{lenglh} ^{in} ^{cm}
(correlation factor R =0,8531) if the sex of a dolphin is not known, or tail
flukes width in cm = 0,0565 x total body length in cm + 2,7885 (correlation
factor R"=0,8451) for males and tail flukes width in cm = 5,9902 x e^{0}'^{004}
^{x} ^{lolal} ^{body} ^{Ienglh} ^{in} ^{cm}
(correlation factor R^{2}=0,8678) for females. Total body length can be
estimated using equations: total body length in cm = 14,401 x tail flukes width
in cm + 7,3076 (correlation factor R^{2}=0,8243), or total body length
in cm = 14,966 x tail flukes width in cm - 3,8847 (correlation factor R^{2}=0,8451)
for males and total body length in cm = 14,181 x tail flukes width in cm +
12,248 (correlation factor R^{2}=0,807) for females. If body mass is
measured, tail flukes width can be estimated using equations: tail flukes width
in cm = 0,0369 x body mass in kg + 10,182 (correlation factor R^{2}=0,7895),
or: tail flukes width in cm = 0,0331 x body mass in kg + 10,978 (correlation
factor R =0,7625) for males and tail flukes width in cm = 10,018 x e W^xMy
™ss'""«_{(uz} r^{2}=o_{?}8405)
for females. Body mass can be estimated if tail flukes width is measured
using equations: body mass in kg = 21,421 xtail flukes width in cm - 185,26
(correlation factor R"=0,7895) if the sex is not known, or body mass in kg
= 5,2938 x e °'^{198} *^{lail} ^{nukes} ^{width}
^{in} ^{cm} (correlation factor R^{2}=0,8022) for males
and body mass in kg = 20,352 x tail flukes width in cm - 168,12 (correlation
factor R"=0,8I26) for females. Correlation factor for dolphins age and
tail flukes width is R =0,6773. This research shows that tail flukes spread and
width of bottlenose dolphin from Adriatic Sea has a higher correlation factor
with total body length then with body weight, whereas correlations with age are
not statistically relevant. Average tail flukes spread was 23,034% of total
body length for all dolphins, but tail flukes width was for 1% higher for
dolphins under 200 cm total body length (in range from 7% to 8% total body
length) then for dolphins over 200 cm total body length (in range from 6% to 7%).