What does external morphometry tell us about stock discrimination of Sardina pilchardus stocks from Türkiye?
The analysis of shape is a fundamental part of much biological research. Morphometrics, which incorporates concepts from biology, geometry, and statistics, is the study of the geometrical form of organisms. In addition, morphometric characteristics can be used to differentiate ‘phenotypic stocks’ as...
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Sciendo
2024-09-01
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| Series: | Oceanological and Hydrobiological Studies |
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| Online Access: | https://doi.org/10.26881/oahs-2024.3.08 |
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| author | Ozpicak Melek Saygin Semra |
| author_facet | Ozpicak Melek Saygin Semra |
| author_sort | Ozpicak Melek |
| collection | DOAJ |
| description | The analysis of shape is a fundamental part of much biological research. Morphometrics, which incorporates concepts from biology, geometry, and statistics, is the study of the geometrical form of organisms. In addition, morphometric characteristics can be used to differentiate ‘phenotypic stocks’ as groups with similar growth, mortality, and reproductive rates. In this study, 25 morphometric characters were used to discriminate European pilchard (Sardina pilchardus) stocks from Türkiye. Intraspecific variation of the European pilchard was investigated based on morphometric characters. Samples were collected from the Aegean Sea (AS; N = 54), the Sea of Marmara (MS; N = 50) and the Mediterranean Sea (MEDS; N = 50) during the 2019 fishing season. Principal Component Analysis (PCA) and Canonical Discriminant Analysis (CDA) were used for stock discrimination of the European pilchard. Univariate statistics (ANOVA) showed that 24 of the 25 measurements differed significantly between samples to a varying degree ( p < 0.001). According to CDA, an overall classification success rate of 87.7% was achieved using 12 morphometric parameters. All samples were clearly separated from each other in the discriminant space, suggesting that there was no strong intermingling between populations. In addition, we would like to conclude that the morphological difference is not at the genetic level, and would like to emphasize the need for additional stock discrimination methods. |
| format | Article |
| id | doaj-art-0587dabb0ce34cb6b3599c7fee612abf |
| institution | Kabale University |
| issn | 1897-3191 |
| language | English |
| publishDate | 2024-09-01 |
| publisher | Sciendo |
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| series | Oceanological and Hydrobiological Studies |
| spelling | doaj-art-0587dabb0ce34cb6b3599c7fee612abf2025-01-20T11:10:24ZengSciendoOceanological and Hydrobiological Studies1897-31912024-09-0153329930910.26881/oahs-2024.3.08What does external morphometry tell us about stock discrimination of Sardina pilchardus stocks from Türkiye?Ozpicak Melek0Saygin Semra1Ondokuz Mayis University, Faculty of Science, Department of Biology, Samsun, TürkiyeOndokuz Mayis University, Faculty of Science, Department of Biology, Samsun, TürkiyeThe analysis of shape is a fundamental part of much biological research. Morphometrics, which incorporates concepts from biology, geometry, and statistics, is the study of the geometrical form of organisms. In addition, morphometric characteristics can be used to differentiate ‘phenotypic stocks’ as groups with similar growth, mortality, and reproductive rates. In this study, 25 morphometric characters were used to discriminate European pilchard (Sardina pilchardus) stocks from Türkiye. Intraspecific variation of the European pilchard was investigated based on morphometric characters. Samples were collected from the Aegean Sea (AS; N = 54), the Sea of Marmara (MS; N = 50) and the Mediterranean Sea (MEDS; N = 50) during the 2019 fishing season. Principal Component Analysis (PCA) and Canonical Discriminant Analysis (CDA) were used for stock discrimination of the European pilchard. Univariate statistics (ANOVA) showed that 24 of the 25 measurements differed significantly between samples to a varying degree ( p < 0.001). According to CDA, an overall classification success rate of 87.7% was achieved using 12 morphometric parameters. All samples were clearly separated from each other in the discriminant space, suggesting that there was no strong intermingling between populations. In addition, we would like to conclude that the morphological difference is not at the genetic level, and would like to emphasize the need for additional stock discrimination methods.https://doi.org/10.26881/oahs-2024.3.08sardina pilchardusstock discriminationmorphometricsmultivariate analysistürkiye |
| spellingShingle | Ozpicak Melek Saygin Semra What does external morphometry tell us about stock discrimination of Sardina pilchardus stocks from Türkiye? Oceanological and Hydrobiological Studies sardina pilchardus stock discrimination morphometrics multivariate analysis türkiye |
| title | What does external morphometry tell us about stock discrimination of Sardina pilchardus stocks from Türkiye? |
| title_full | What does external morphometry tell us about stock discrimination of Sardina pilchardus stocks from Türkiye? |
| title_fullStr | What does external morphometry tell us about stock discrimination of Sardina pilchardus stocks from Türkiye? |
| title_full_unstemmed | What does external morphometry tell us about stock discrimination of Sardina pilchardus stocks from Türkiye? |
| title_short | What does external morphometry tell us about stock discrimination of Sardina pilchardus stocks from Türkiye? |
| title_sort | what does external morphometry tell us about stock discrimination of sardina pilchardus stocks from turkiye |
| topic | sardina pilchardus stock discrimination morphometrics multivariate analysis türkiye |
| url | https://doi.org/10.26881/oahs-2024.3.08 |
| work_keys_str_mv | AT ozpicakmelek whatdoesexternalmorphometrytellusaboutstockdiscriminationofsardinapilchardusstocksfromturkiye AT sayginsemra whatdoesexternalmorphometrytellusaboutstockdiscriminationofsardinapilchardusstocksfromturkiye |