Length-Weight Relationship and Population Dynamics of Fringescale Sardinella Sardinella fimbriata (Clupeiformes, Clupeidae) from Malampaya Sound, Palawan, Philippines
The study investigated the growth, mortality, exploitation rate and recruitment of Fringescale sardinella (Sardinella fimbriata Valenciennes, 1847) found in Malampaya Sound, Palawan, Philippines. A total of 1200 samples were collected from April 2023 to March 2024. The relationship between length an...
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Publishing House "Akademperiodyka" of the National Academy of Sciences of Ukraine
2024
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oai:ojs.akademperiodyka.org.ua:article-6152024-10-17T15:39:44Z Length-Weight Relationship and Population Dynamics of Fringescale Sardinella Sardinella fimbriata (Clupeiformes, Clupeidae) from Malampaya Sound, Palawan, Philippines Vicente, J. A. Palla, H. P. fish growth and mortality sardines stock assessment West Palawan water The study investigated the growth, mortality, exploitation rate and recruitment of Fringescale sardinella (Sardinella fimbriata Valenciennes, 1847) found in Malampaya Sound, Palawan, Philippines. A total of 1200 samples were collected from April 2023 to March 2024. The relationship between length and weight was expressed as y = 0.0291 x 2.561 for combined sex, y = 0.0404 x 2.4254 for males, and y = 0.0355 x 2.4856 for females. The resulting b values pinpoint to a negative allometric growth. The calculated regression model showed a significant association during which the p-values were below 0.0000 and the r2 values ranged between 0.76 and 0.79. Estimation using the FISAT II software resulted in an asymptotic length (L∞) = 16.28 cm, growth rate (K) = 0.68 yr-1, maximum length (Lmax) = 15.78 cm, theoretical age at birth (t0) = –0.5515 years and growth performance index (ɸ’) = 2.256. The estimated average total mortality rate (Z), natural mortality (M), and fishing mortality (F) were 2.69, 1.68, and 1.01 per year, respectively. Recruitment occurs throughout the year and peaks in June. It can be noted that the exploitation is calculated as 0.38, which is considered lightly exploited. To have a sustainable population and avoid overfishing, an optimum total yield (E50) can be set at an exploitation rate of 0.278. The maximum yield (Emax) is at an exploitation rate of 0.421. Publishing House "Akademperiodyka" of the National Academy of Sciences of Ukraine 2024-08-13 Article Article application/pdf https://ojs.akademperiodyka.org.ua/index.php/Zoodiversity/article/view/615 10.15407/zoo2024.05.391 Zoodiversity; Vol. 58 No. 5 (2024): Zoodiversity Zoodiversity (Vestnik Zoologii); Том 58 № 5 (2024): Zoodiversity 2707-7268 2707-725X 10.15407/zoo2024.05 en https://ojs.akademperiodyka.org.ua/index.php/Zoodiversity/article/view/615/285 Copyright (c) 2024 Jesusito Vicente, Herminie Palla |
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Zoodiversity |
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| datestamp_date |
2024-10-17T15:39:44Z |
| collection |
OJS |
| language |
English |
| topic_facet |
fish growth and mortality sardines stock assessment West Palawan water |
| format |
Article |
| author |
Vicente, J. A. Palla, H. P. |
| spellingShingle |
Vicente, J. A. Palla, H. P. Length-Weight Relationship and Population Dynamics of Fringescale Sardinella Sardinella fimbriata (Clupeiformes, Clupeidae) from Malampaya Sound, Palawan, Philippines |
| author_facet |
Vicente, J. A. Palla, H. P. |
| author_sort |
Vicente, J. A. |
| title |
Length-Weight Relationship and Population Dynamics of Fringescale Sardinella Sardinella fimbriata (Clupeiformes, Clupeidae) from Malampaya Sound, Palawan, Philippines |
| title_short |
Length-Weight Relationship and Population Dynamics of Fringescale Sardinella Sardinella fimbriata (Clupeiformes, Clupeidae) from Malampaya Sound, Palawan, Philippines |
| title_full |
Length-Weight Relationship and Population Dynamics of Fringescale Sardinella Sardinella fimbriata (Clupeiformes, Clupeidae) from Malampaya Sound, Palawan, Philippines |
| title_fullStr |
Length-Weight Relationship and Population Dynamics of Fringescale Sardinella Sardinella fimbriata (Clupeiformes, Clupeidae) from Malampaya Sound, Palawan, Philippines |
| title_full_unstemmed |
Length-Weight Relationship and Population Dynamics of Fringescale Sardinella Sardinella fimbriata (Clupeiformes, Clupeidae) from Malampaya Sound, Palawan, Philippines |
| title_sort |
length-weight relationship and population dynamics of fringescale sardinella sardinella fimbriata (clupeiformes, clupeidae) from malampaya sound, palawan, philippines |
| description |
The study investigated the growth, mortality, exploitation rate and recruitment of Fringescale sardinella (Sardinella fimbriata Valenciennes, 1847) found in Malampaya Sound, Palawan, Philippines. A total of 1200 samples were collected from April 2023 to March 2024. The relationship between length and weight was expressed as y = 0.0291 x 2.561 for combined sex, y = 0.0404 x 2.4254 for males, and y = 0.0355 x 2.4856 for females. The resulting b values pinpoint to a negative allometric growth. The calculated regression model showed a significant association during which the p-values were below 0.0000 and the r2 values ranged between 0.76 and 0.79. Estimation using the FISAT II software resulted in an asymptotic length (L∞) = 16.28 cm, growth rate (K) = 0.68 yr-1, maximum length (Lmax) = 15.78 cm, theoretical age at birth (t0) = –0.5515 years and growth performance index (ɸ’) = 2.256. The estimated average total mortality rate (Z), natural mortality (M), and fishing mortality (F) were 2.69, 1.68, and 1.01 per year, respectively. Recruitment occurs throughout the year and peaks in June. It can be noted that the exploitation is calculated as 0.38, which is considered lightly exploited. To have a sustainable population and avoid overfishing, an optimum total yield (E50) can be set at an exploitation rate of 0.278. The maximum yield (Emax) is at an exploitation rate of 0.421. |
| publisher |
Publishing House "Akademperiodyka" of the National Academy of Sciences of Ukraine |
| publishDate |
2024 |
| url |
https://ojs.akademperiodyka.org.ua/index.php/Zoodiversity/article/view/615 |
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2024-12-16T06:04:24Z |
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