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Age and length key for Oblada melanura occurring in the north Aegean Sea
| Length Class | Age | Total | |||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | ||
| 11 | 1 | 1 | |||||||
| 12 | 1 | 1 | |||||||
| 14 | 3 | 3 | |||||||
| 15 | 6 | 3 | 9 | ||||||
| 16 | 8 | 4 | 12 | ||||||
| 17 | 2 | 9 | 4 | 15 | |||||
| 18 | 15 | 9 | 24 | ||||||
| 19 | 19 | 23 | 42 | ||||||
| 20 | 12 | 37 | 1 | 50 | |||||
| 21 | 14 | 40 | 1 | 55 | |||||
| 22 | 9 | 48 | 4 | 61 | |||||
| 23 | 32 | 5 | 2 | 39 | |||||
| 24 | 20 | 10 | 3 | 33 | |||||
| 25 | 6 | 8 | 2 | 16 | |||||
| 26 | 2 | 3 | 1 | 1 | 7 | ||||
| 27 | 1 | 1 | 2 | ||||||
| 29 | 1 | 1 | |||||||
| Total | 2 | 19 | 85 | 221 | 32 | 9 | 2 | 1 | 371 |
| Mean length (cm) | 12 | 15.9 | 20 | 22 | 24 | 25 | 27 | 29.2 | |
| Proportional growth (%) | 33 | 23 | 11 | 11 | 5 | 5 | 10 | ||
Length–weight regression parameters for males, females and both sexes for Oblada melanura
| N | a | b | r2 | s | Growth | |
|---|---|---|---|---|---|---|
| Female | 187 | 0.0098 | 3.086 | 0.949 | p > 0.05 | A(+) |
| Male | 139 | 0.0086 | 3.128 | 0.949 | p > 0.05 | A(+) |
| Both sexes | 373 | 0.0091 | 3.108 | 0.954 | p > 0.05 | A(+) |
Comparision of Von Bertalanffy growth parameters for Oblada melanura with previous studies
| Authors | Region | Sex | Length | L∞ | K | t0 | Z | M | E | Age |
|---|---|---|---|---|---|---|---|---|---|---|
| This study | North Aegean Sea, Eastern Mediterranean | F | ||||||||
| M | 11.6–29.2 | |||||||||
| Both | 29.91 | 0.27 | 0.82 | 1.36 | 0.58 | 0.78 | 1–8 | |||
| Mahmoud 2010 | Abu Qir Bay Egypt | Both | 12.0–29.2 | 33.83 | 0.242 | 0.669 | 0.96 | 0.56 | 0.41 | 1–8 |
| Pallaoro et al. 1998 | Eastern Adriatic | F | 2.0–33.4 | 0.201 | ||||||
| M | 0.233 | |||||||||
| Both | 34.13 | 0.75 | 1.08 | 0.47 | 0.56 | 1–11 | ||||
| Cetinic et al. 2002 | Eastern Adriaitic | F | 11.3–33.1 | |||||||
| Cavallaro et al. 1985* | Eastern Sicily Messina Strait | 1–8 | ||||||||
| Cefali et al. 1987* | Eastern Sicily Messina Strait | 0.309 | 1–3 | |||||||
Comparision of length–weight relationship of Oblada melanura with previous studies
| Authors | Region | Sex | N | Length Interval | a | b | GT |
|---|---|---|---|---|---|---|---|
| This study | North Aegean Sea, Eastern Mediterranean | F | 187 | 11.6–29.2 TL | 0.0098 | 3.086 | A(+) |
| M | 139 | 14.6–27.6 TL | 0.0086 | 3.128 | A(+) | ||
| Both | 373 | 11.6–29.2 TL | 0.0091 | 3.108 | A(+) | ||
| Karakulak et al. 2006 | Gökçeada Island North Aegean Sea | F | 112 | 12.5–19.8 TL | 0.0052 | 3.310 | A(+) |
| M | 145 | 12.1–19.8 TL | 0.0047 | 3.347 | A(+) | ||
| Both | 316 | 9.1–19.8 TL | 0.0034 | 3.463 | A(+) | ||
| Can et al. 2002 | Iskenderun Bay Eastern Mediterranean | Both | 22 | 15.6–27.0 TL | 0.0322 | 2.697 | A(-) |
| Gonçalves et al. 1997 | South Portugal Western Mediterranean | Both | 23 | 22.0–24.0 TL | 0.00000127 | 3.404 | A(+) |
| Crechriou et al. 2012 | French Catalan Coast | Both | 74 | 17.0–36.6 TL | 0.127 | 2.89 | A(-) |
| Bilge et al. 2014 | South Aegean Sea | Both | 157 | 11.6–25.8 TL | 0.0174 | 2.857 | A(-) |
| Karachle and Stergiou 2008 | North Aegean Sea, Eastern Mediterranean | Both | 56 | 12.6–22.7 TL | 0.0124 | 3.0220 | I |
| Borges et al. 2003 | Algarve Southern Portugal | Both | 49 | 20.5–28.2 TL | 0.0161 | 2.906 | A(-) |
| Cengiz 2013 | Gallipoli Peninsula and Dardanelles | Both | 97 | 12.7–26.1 TL | 0.0180 | 2.89 | A(-) |
| Mahmoud 2010 | Abu Qir Bay Egypt | Both | 477 | 12.0–29.2 TL | 0.017 | 2.934 | A(-) |
| Pallaoro et al. 1998 | Eastern Ardiatic | F | 2911 | 2.0–33.4 TL | 0.0088 | 3.132 | A(+) |
| M | 2430 | 0.0113 | 3.017 | I | |||
| Both | 5987 | 0.0099 | 3.081 | A(+) | |||
| Cavallaro et al. 1985 | Eastern Sicily | Both | 353 | 1.0–14.0 SL | 0.0157 | 3.246 | A(+) |
| Cetinic et al. 2002 | Eastern Adriatic | Both | 11.3–33.1 TL | 0.0091 | 3.081 | I |