Journals / Acta Aquatica Turcica / 2019 / Cilt: 15 - Sayı: 4

Otolith Shape Analysis of Bluefish, Pomatomus saltatrix (Linnaeus, 1766) in the Black Sea Region (Samsun, Turkey)

Karadeniz Bölgesi’nden Örneklenen Lüfer Balığının, Pomatomus saltatrix (Linnaeus, 1766) Otolit Şekil Analizi

Pages
507–516
Publication Date
2019-12-16
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Ellipticity was found to have a much stronger relationship with otolith length than the other five parameters (r2˃0.590).

📌 3 Key Takeaways

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Objective & Hypothesis:In this study, otolith shape indices and relationships between otolith shape and otolith length of the bluefish species Pomatomus saltatrix (Linnaeus, 1766), which was sampled from the Samsun offshore of the Blacksea Region were investigated.
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Key Findings & Data:A total of 166 samples (94♀ and 72♂) were taken from commercial fishermen in two different fishing seasons.
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Conclusion & Impact:Ellipticity was found to have a much stronger relationship with otolith length than the other five parameters (r2˃0.590).
🔬Design:Modeling & Simulation
📍Scope:166 samples
⚙️Variables:Lüfer · Pomatomus saltatrix · otolit

Abstract

In this study, otolith shape indices and relationships between otolith shape and otolith length of the bluefish species Pomatomus saltatrix (Linnaeus, 1766), which was sampled from the Samsun offshore of the Blacksea Region were investigated. A total of 166 samples (94♀ and 72♂) were taken from commercial fishermen in two different fishing seasons. Sagittal otoliths of each sample were removed and six different shape index (form factor, roundness, circularity, rectengularity, ellipticity and aspect ratio) were used in analyses. The linear model is preferred for calculating the relationships between otolith shape properties and otolith length. Paired t-test, wilcoxon test, independent t test were used for statistical analysis. The minimum and maximum total lengths and weights of the captured samples are between 13.5-24.8 cm and 22.01-161.19 g, respectively. There is no difference between female and male in terms of total length and weight. When otolith dimensions of female and male were compared, there were no differences in terms of Otolith Length, Otolith Breadth, Otolith Perimeter and Otolith Area (P˃0.05). However, according to left and right otoliths comparisons, there were differences in terms of OB and OP (P˂0.05). Ellipticity was found to have a much stronger relationship with otolith length than the other five parameters (r2˃0.590).

Özet

Bu çalışmada Karadeniz Bölgesi’nin Samsun ili açıklarından örneklenmiş olan lüfer balığının Pomatomus saltatrix (Linnaeus, 1766) otolit şekil özellikleri ve otolit şeklinin otolit boyu ile olan ilişkileri araştırılmıştır. Ticari balıkçılardan iki ayrı avcılık sezonu içerisinde toplamda 166 (94♀ ve 72♂) adet örnek alınmıştır. Her bir örneğin sagittal otolitleri çıkarılmış ve analizlerde altı farklı şekil indeksi (şekil faktörü, yuvarlaklık, dairesellik, dikdörtgensellik, ovallik ve en-boy oranı) kullanılmıştır. Otolit şekil özellikleri ile otolit boyu arasındaki ilişkilerin hesaplanması için linear model tercih edilmiştir. İstatistiksel analizlerde paired t-testi, wilcoxon testi, independent t testi gibi testler kullanılmıştır. Yakalanan örneklerin minimum ve maksimum total boy ve ağırlıkları sırasıyla 13,50-24,80 cm ve 22,01-161,19 g arasında değişmektedir. Total boy ve ağırlık bakımından dişi ve erkek bireyler arasında fark yoktur. Dişi ve erkek bireylerin otolit ölçümleri otolit eni, boyu, çevre ve alanı bakımından karşılaştırıldığında herhangi bir farklılık olmadığı belirlenmiştir (P˃0,05). Fakat sağ-sol karşılaştırmalarında otolit eni ve çevresi bakımından farklılıklar saptanmıştır (P˂0,05). Ovallik parametresinin diğer beş parametreye göre otolit boyu ile çok daha kuvvetli bir ilişkiye sahip olduğu belirlenmiştir (r2˃0,590).

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Cite This Article

ÖZPİÇAK, M., SAYGIN, S., POLAT, N. (2019). Otolith Shape Analysis of Bluefish, Pomatomus saltatrix (Linnaeus, 1766) in the Black Sea Region (Samsun, Turkey). Acta Aquatica Turcica, Cilt: 15 - Sayı: 4, 507–516. https://ajindex.com/articles/18405

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References (12)

  1. Afanasyeva, P. K., Orlova, A. M., & Yu Rolskye, A. (2017). Otolith shape analysis as a tool for species identification and studying the population structure of different fish species. Fisheries Research, 176, 39–47.
  2. Avigliano, E., Domanico, A., Sánchez, S., & Velpado, A.V. (2017). Otolith elemental fingerprint and scale and otolith morphometry in Prochilodus lineatus provide identification of natal nurseries. Fisheries Research, 186, 1-10.
  3. Bal, H., Türker, D., & Zengin, K. (2018). Morphological characteristics of otolith for four fish species in the Edremit Gulf, Aegean Sea, Turkey. Iranian Journal of Ichthyology, 5(4), 303-311.
  4. Bat, L., Sahin, F., Sezgin, M., Gonener, S., Erdem, E., & Ozsandikci U. (2018). Fishery of Sinop Coasts in the Black Sea Surveys. Eur J Biol,. 77(1), 18-25.Begg, G. A., & Brown, R. W. (2000). Stock identification of Haddock Melanogrammus aeglefinus on Georges Bank based on otolith shape analysis. Transactions of American Fisheries Society, 129, 335–345.
  5. Bostancı, D., & Yedier, S. (2018). Discrimination of invasive fish Atherina boyeri (Pisces: Atherinidae) populations by evaluating the performance of otolith morphometrics in several lentic habitats. Fresenius Environmental Bulletin, 27(6), 4493-4501.
  6. Bostancı, D., Polat N., Kurucu, G., Yedier S., Kontaş, S., & Darcın, M. (2015). Using otolith shape and morphometry to identify four Alburnus species (A. chalcoides, A. escherichii, A. mossulensis and A. tarichi) in Turkish inland waters. Journal of Applied Ichthyology, 31(6), 1013-1022.
  7. Briggs, J.C. (1960). Fishes of world-wide (circumtropical) distribution. Copeia, 3, 171-180.
  8. Buckel, J.A., Sharack, B.L., & Zdanowicz, V.S. (2004), Effect of diet on otolith composition in Pomatomus saltatrix, an estuarine piscivore. Journal of Fish Biology, 64, 1469-1484.
  9. Cadrin, S.X., Friedland, K.D., & Waldman, J.R. (Eds.) (2005). Stock Identification Methods. Elsevier Academic Press.
  10. Campana, S.E. (1999) Chemistry and composition of fish otoliths: pathways, mechanisms and applications. Mar. Ecol Prog Ser., 188, 263–297.
  11. Campana, S.E., & Thorrold, S.R. (2001). Otoliths, increments, and elements: keys to a comprehensive understanding of fish populations? Canadian Journal of Fisheries and Aquatic Science, 58, 30 –38. Campana, S. E., & Casselman, J. M. (1993). Stock discrimination using otolith shape analysis. Canadian Journal of Fisheries and Aquatic Sciences 50, 1062–1083.
  12. Cengiz, O., Ozekinci, U., & Oztekin, A. (2012). The relationships between total