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Zenodo
2009
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| Online Access: | https://doi.org/10.5281/zenodo.17201027 |
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- <p><b>Table 2.</b> The ranges of standard length (SL) and ratios suggested by canonical discriminant analysis are shown for the three morphotypes of <i>Astyanax gymnodontus</i>. Abbreviations of truss measurements are shown according to Table 1, and traditional measurements are: BOD, body depth; CPD, caudal-peduncle depth; CPL, caudal-peduncle length; DFL, dorsal-fin length; HL, head length; IOD, interorbital distance; JW, jaw width; OD, orbital diameter; PDL, predorsal length; and SNL, snout length. Bolded ratios correspond to those responsible for a faint separation between morphotypes in axis 2 of the principal components analysis shown in Fig. 2.</p><table><thead><tr><th rowspan="2">Morphotypes</th><th colspan="3">“ <i>P. gymnodontus</i> ”</th><th colspan="3">“ <i>Psalidodon</i> sp. ”</th><th colspan="3">“ <i>Astyanax</i> sp. F ”</th><th>Morphotypes</th><th colspan="3">“ <i>P. gymnodontus</i> ”</th><th colspan="3">“ <i>Psalidodon</i> sp. ”</th><th colspan="3">“ <i>Astyanax</i> sp. F ”</th></tr><tr><th>Low</th><th>High</th><th>Mean</th><th>Low</th><th>High</th><th>Mean</th><th>Low</th><th>High</th><th>Mean</th><th>Ratios</th><th>Low</th><th>High</th><th>Mean</th><th>Low</th><th>High</th><th>Mean</th><th>Low</th><th>High</th><th>Mean</th></tr></thead><tbody><tr><th>Ratios/SL range</th><td>56.1</td><td>123.4</td><td>91.5</td><td>58.0</td><td>122.2</td><td>89.4</td><td>52.0</td><td>136.8</td><td>89.7</td><td>D-F/A-I</td><td>1.72</td><td>2.30</td><td>2.02</td><td>1.75</td><td>2.42</td><td>2.00</td><td>1.59</td><td>2.10</td><td>1.78</td></tr><tr><th>SL/CPL</th><td>9.95</td><td>12.05</td><td>10.72</td><td>10.34</td><td>12.56</td><td>11.26</td><td>10.07</td><td>12.27</td><td>10.92</td><td>D-F/J-I</td><td>2.13</td><td>2.94</td><td>2.52</td><td>2.22</td><td>2.86</td><td>2.48</td><td>1.85</td><td>2.82</td><td>2.22</td></tr><tr><th>BOD/C-G</th><td>0.97</td><td>1.13</td><td>1.03</td><td>0.92</td><td>1.14</td><td>1.03</td><td>0.98</td><td>1.10</td><td>1.03</td><td>G-E/G-F</td><td>1.00</td><td>1.17</td><td>1.11</td><td>1.05</td><td>1.21</td><td>1.12</td><td>1.03</td><td>1.22</td><td>1.11</td></tr><tr><th>BOD/D-G</th><td>0.96</td><td>1.08</td><td>1.03</td><td>0.96</td><td>1.12</td><td>1.02</td><td>0.97</td><td>1.12</td><td>1.03</td><td>G-E/E-F</td><td>2.89</td><td>3.52</td><td>3.15</td><td>2.99</td><td>3.78</td><td>3.22</td><td>2.80</td><td>3.53</td><td>3.16</td></tr><tr><th>BOD/E-F</th><td>2.16</td><td>2.61</td><td>2.39</td><td>2.21</td><td>2.71</td><td>2.41</td><td>2.21</td><td>2.60</td><td>2.43</td><td>G-E/A-J</td><td>7.24</td><td>10.14</td><td>8.42</td><td>7.45</td><td>9.41</td><td>8.42</td><td>6.67</td><td>8.67</td><td>7.83</td></tr><tr><th>HL/H-G</th><td>0.85</td><td>1.15</td><td>0.98</td><td>0.87</td><td>1.25</td><td>1.02</td><td>0.87</td><td>1.30</td><td>1.04</td><td>G-E/A-I</td><td>2.52</td><td>3.35</td><td>2.88</td><td>2.50</td><td>3.39</td><td>2.84</td><td>2.13</td><td>2.99</td><td>2.55</td></tr><tr><th>HL/J-B</th><td>0.99</td><td>1.09</td><td>1.03</td><td>0.89</td><td>1.16</td><td>1.05</td><td>0.94</td><td>1.17</td><td>1.04</td><td>G-E/B-I</td><td>1.74</td><td>2.03</td><td>1.88</td><td>1.62</td><td>2.21</td><td>1.89</td><td>1.51</td><td>1.94</td><td>1.76</td></tr><tr><th>HL/D-E</th><td>0.82</td><td>1.07</td><td>0.98</td><td>0.81</td><td>1.22</td><td>1.03</td><td>0.92</td><td>1.36</td><td>1.08</td><td>G-E/BOD</td><td>1.19</td><td>1.43</td><td>1.32</td><td>1.24</td><td>1.44</td><td>1.33</td><td>1.20</td><td>1.40</td><td>1.30</td></tr><tr><th>C-B/SNL</th><td>3.25</td><td>4.77</td><td>3.98</td><td>3.37</td><td>4.97</td><td>4.15</td><td>3.16</td><td>5.09</td><td>3.90</td><td>G-E/DFL</td><td>1.77</td><td>2.30</td><td>2.03</td><td>1.80</td><td>2.23</td><td>1.98</td><td>1.51</td><td>2.24</td><td>1.90</td></tr><tr><th>C-B/IOD</th><td>2.65</td><td>3.77</td><td>3.24</td><td>3.02</td><td>3.99</td><td>3.34</td><td>2.50</td><td>3.58</td><td>3.05</td><td>G-E/ OD</td><td>4.41</td><td>6.92</td><td>5.54</td><td>3.88</td><td>6.23</td><td>5.35</td><td>4.02</td><td>7.02</td><td>5.05</td></tr><tr><th>C-B/J-B</th><td>0.92</td><td>1.25</td><td>1.08</td><td>0.83</td><td>1.42</td><td>1.14</td><td>0.81</td><td>1.26</td><td>1.06</td><td>G-E/D-E</td><td>1.66</td><td>2.11</td><td>1.90</td><td>1.66</td><td>2.24</td><td>1.95</td><td>1.73</td><td>2.21</td><td>1.92</td></tr><tr><th>PDL/G-E</th><td>0.95</td><td>1.14</td><td>1.05</td><td>0.99</td><td>1.15</td><td>1.07</td><td>1.00</td><td>1.20</td><td>1.11</td><td>G-E/D-G</td><td>1.24</td><td>1.49</td><td>1.36</td><td>1.27</td><td>1.50</td><td>1.36</td><td>1.22</td><td>1.47</td><td>1.34</td></tr><tr><th>PDL/C-G</th><td>1.31</td><td>1.62</td><td>1.44</td><td>1.32</td><td>1.63</td><td>1.47</td><td>1.33</td><td>1.71</td><td>1.49</td><td>G-E/D-F</td><td>1.30</td><td>1.53</td><td>1.43</td><td>1.29</td><td>1.52</td><td>1.42</td><td>1.29</td><td>1.57</td><td>1.43</td></tr><tr><th>PDL/G-F</th><td>1.08</td><td>1.27</td><td>1.17</td><td>1.07</td><td>1.28</td><td>1.19</td><td>1.12</td><td>1.40</td><td>1.23</td><td>G-E/C-G</td><td>1.24</td><td>1.48</td><td>1.36</td><td>1.23</td><td>1.49</td><td>1.38</td><td>1.23</td><td>1.52</td><td>1.34</td></tr><tr><th>PDL/E-F</th><td>3.02</td><td>3.84</td><td>3.32</td><td>3.02</td><td>3.93</td><td>3.43</td><td>3.29</td><td>3.80</td><td>3.50</td><td>G-E/ IOD</td><td>5.41</td><td>6.41</td><td>5.94</td><td>4.94</td><td>6.98</td><td>5.88</td><td>4.84</td><td>6.01</td><td>5.32</td></tr><tr><th>E-F/CPD</th><td>1.22</td><td>1.45</td><td>1.32</td><td>1.18</td><td>1.42</td><td>1.31</td><td>1.18</td><td>1.38</td><td>1.28</td><td>G-E/C-D</td><td>3.27</td><td>4.00</td><td>3.66</td><td>3.27</td><td>4.07</td><td>3.64</td><td>3.23</td><td>4.09</td><td>3.54</td></tr><tr><th>E-F/IOD</th><td>1.60</td><td>2.10</td><td>1.89</td><td>1.47</td><td>2.12</td><td>1.83</td><td>1.50</td><td>1.88</td><td>1.68</td><td>G-F/A-I</td><td>2.21</td><td>2.93</td><td>2.59</td><td>2.24</td><td>3.06</td><td>2.54</td><td>1.97</td><td>2.68</td><td>2.30</td></tr><tr><th>E-F/OD</th><td>1.38</td><td>2.11</td><td>1.76</td><td>1.16</td><td>2.01</td><td>1.67</td><td>1.28</td><td>2.14</td><td>1.59</td><td>G-F/D-F</td><td>1.18</td><td>1.42</td><td>1.28</td><td>1.16</td><td>1.44</td><td>1.27</td><td>1.21</td><td>1.46</td><td>1.29</td></tr><tr><th>A-I/IOD</th><td>1.73</td><td>2.37</td><td>2.07</td><td>1.69</td><td>2.33</td><td>2.08</td><td>1.83</td><td>2.41</td><td>2.10</td><td>G-F/ IOD</td><td>4.90</td><td>6.08</td><td>5.34</td><td>4.52</td><td>6.49</td><td>5.26</td><td>4.14</td><td>5.54</td><td>4.81</td></tr><tr><th>A-I/OD</th><td>1.58</td><td>2.25</td><td>1.93</td><td>1.49</td><td>2.22</td><td>1.88</td><td>1.72</td><td>2.36</td><td>1.98</td><td>G-F/ DFL</td><td>1.60</td><td>2.01</td><td>1.83</td><td>1.61</td><td>2.07</td><td>1.77</td><td>1.42</td><td>2.09</td><td>1.72</td></tr><tr><th>H-G/JW</th><td>2.66</td><td>3.36</td><td>3.04</td><td>2.55</td><td>3.67</td><td>3.10</td><td>2.40</td><td>3.41</td><td>2.80</td><td>G-F/ OD</td><td>3.98</td><td>6.05</td><td>4.98</td><td>3.48</td><td>5.59</td><td>4.79</td><td>3.70</td><td>6.31</td><td>4.56</td></tr><tr><th>H-G/ DFL</th><td>0.88</td><td>1.28</td><td>1.08</td><td>0.85</td><td>1.21</td><td>1.02</td><td>0.77</td><td>1.22</td><td>1.03</td><td>G-F/C-D</td><td>2.80</td><td>3.74</td><td>3.29</td><td>2.93</td><td>3.55</td><td>3.26</td><td>2.78</td><td>3.77</td><td>3.20</td></tr><tr><th>C-H/D-G</th><td>0.99</td><td>1.18</td><td>1.06</td><td>1.02</td><td>1.17</td><td>1.07</td><td>0.99</td><td>1.18</td><td>1.10</td><td>I-H/SNL</td><td>1.40</td><td>2.02</td><td>1.65</td><td>1.38</td><td>1.97</td><td>1.68</td><td>1.41</td><td>2.05</td><td>1.68</td></tr><tr><th>C-H/C-G</th><td>1.00</td><td>1.17</td><td>1.06</td><td>1.00</td><td>1.21</td><td>1.08</td><td>1.03</td><td>1.22</td><td>1.10</td><td>J-B/I-B</td><td>0.91</td><td>1.00</td><td>0.94</td><td>0.83</td><td>1.02</td><td>0.95</td><td>0.89</td><td>1.00</td><td>0.95</td></tr><tr><th>C-G/D-G</th><td>0.92</td><td>1.03</td><td>1.00</td><td>0.89</td><td>1.09</td><td>0.99</td><td>0.92</td><td>1.09</td><td>1.00</td><td>J-B/E-F</td><td>1.40</td><td>1.83</td><td>1.58</td><td>1.35</td><td>2.29</td><td>1.62</td><td>1.51</td><td>1.94</td><td>1.72</td></tr><tr><th>C-G/E-F</th><td>2.11</td><td>2.51</td><td>2.31</td><td>2.11</td><td>2.66</td><td>2.34</td><td>2.09</td><td>2.57</td><td>2.36</td><td>B-H/I-B</td><td>0.88</td><td>1.07</td><td>0.93</td><td>0.87</td><td>1.08</td><td>0.95</td><td>0.89</td><td>0.99</td><td>0.95</td></tr><tr><th>C-G/A-J</th><td>4.90</td><td>7.43</td><td>6.18</td><td>5.26</td><td>7.11</td><td>6.13</td><td>5.03</td><td>6.83</td><td>5.84</td><td>B-H/E-F</td><td>1.43</td><td>1.79</td><td>1.57</td><td>1.40</td><td>2.41</td><td>1.63</td><td>1.56</td><td>1.90</td><td>1.71</td></tr><tr><th>C-G/A-I</th><td>1.80</td><td>2.53</td><td>2.11</td><td>1.73</td><td>2.49</td><td>2.07</td><td>1.65</td><td>2.28</td><td>1.90</td><td>B-H/CPD</td><td>1.86</td><td>2.38</td><td>2.07</td><td>1.85</td><td>3.17</td><td>2.14</td><td>1.99</td><td>2.54</td><td>2.18</td></tr><tr><th>C-G/DFL</th><td>1.29</td><td>1.74</td><td>1.49</td><td>1.29</td><td>1.69</td><td>1.44</td><td>1.15</td><td>1.68</td><td>1.42</td><td>I-B/ CPD</td><td>1.98</td><td>2.41</td><td>2.21</td><td>1.89</td><td>2.94</td><td>2.24</td><td>2.13</td><td>2.74</td><td>2.30</td></tr><tr><th>A-B/C-D</th><td>1.68</td><td>2.13</td><td>1.91</td><td>1.61</td><td>2.20</td><td>1.89</td><td>1.70</td><td>2.60</td><td>1.97</td><td>I-B/ DFL</td><td>0.95</td><td>1.19</td><td>1.08</td><td>0.91</td><td>1.16</td><td>1.05</td><td>0.98</td><td>1.20</td><td>1.08</td></tr><tr><th>D-G/E-F</th><td>2.05</td><td>2.53</td><td>2.32</td><td>2.11</td><td>2.74</td><td>2.36</td><td>2.17</td><td>2.59</td><td>2.37</td><td>I-B/ IOD</td><td>2.92</td><td>3.56</td><td>3.16</td><td>2.65</td><td>3.64</td><td>3.11</td><td>2.78</td><td>3.43</td><td>3.04</td></tr><tr><th>D-G/A-J</th><td>4.86</td><td>7.46</td><td>6.21</td><td>5.22</td><td>7.04</td><td>6.19</td><td>5.03</td><td>6.86</td><td>5.87</td><td>I-B/D-E</td><td>0.86</td><td>1.13</td><td>1.01</td><td>0.84</td><td>1.29</td><td>1.04</td><td>0.92</td><td>1.36</td><td>1.10</td></tr><tr><th>D-G/A-I</th><td>1.78</td><td>2.49</td><td>2.12</td><td>1.73</td><td>2.49</td><td>2.09</td><td>1.64</td><td>2.35</td><td>1.91</td><td>I-B/E-F</td><td>1.50</td><td>1.85</td><td>1.68</td><td>1.44</td><td>2.23</td><td>1.71</td><td>1.63</td><td>2.08</td><td>1.81</td></tr><tr><th>D-G/A-B</th><td>1.26</td><td>1.60</td><td>1.41</td><td>1.18</td><td>1.72</td><td>1.42</td><td>1.15</td><td>1.61</td><td>1.35</td><td>I-B/C-B</td><td>0.85</td><td>1.16</td><td>0.98</td><td>0.78</td><td>1.18</td><td>0.94</td><td>0.86</td><td>1.26</td><td>1.00</td></tr><tr><th>D-G/ DFL</th><td>1.26</td><td>1.71</td><td>1.50</td><td>1.29</td><td>1.67</td><td>1.46</td><td>1.20</td><td>1.76</td><td>1.42</td><td>D-E/A-I</td><td>1.32</td><td>1.77</td><td>1.52</td><td>1.16</td><td>1.80</td><td>1.46</td><td>1.13</td><td>1.69</td><td>1.34</td></tr><tr><th>D-G/OD</th><td>3.27</td><td>5.15</td><td>4.08</td><td>2.93</td><td>4.83</td><td>3.94</td><td>3.07</td><td>5.15</td><td>3.78</td><td>D-E/B-H</td><td>0.88</td><td>1.26</td><td>1.06</td><td>0.72</td><td>1.28</td><td>1.03</td><td>0.83</td><td>1.15</td><td>0.97</td></tr><tr><th>D-F/D-E</th><td>1.17</td><td>1.47</td><td>1.33</td><td>1.19</td><td>1.59</td><td>1.37</td><td>1.20</td><td>1.48</td><td>1.34</td><td>D-E/ OD</td><td>2.25</td><td>3.61</td><td>2.93</td><td>2.01</td><td>3.49</td><td>2.77</td><td>1.95</td><td>3.76</td><td>2.64</td></tr><tr><th>D-F/ OD</th><td>3.03</td><td>4.54</td><td>3.88</td><td>2.93</td><td>4.75</td><td>3.76</td><td>2.90</td><td>4.89</td><td>3.53</td><td>D-E/IOD</td><td>2.77</td><td>3.58</td><td>3.13</td><td>2.52</td><td>4.05</td><td>3.03</td><td>2.40</td><td>3.23</td><td>2.79</td></tr></tbody></table>