Seasonal variation in the length-weight relationships and condition factor of four commercially important sea cucumbers species from Karachi Coast- Northern Arabian Sea.
Yazarlar (4)
Quratulan Ahmed
Alicia Poot Salazar
Qadeer Mohammad Ali
Prof. Dr. Levent BAT Sinop Üniversitesi, Türkiye
| Makale Türü |
Özgün Makale
(Uluslararası alan indekslerindeki dergilerde yayınlanan tam makale)
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| Dergi Adı | Natural and Engineering Sciences | ||
| Dergi ISSN | 2458-8989 | ||
| Dergi Tarandığı Indeksler | CAB Abstracts, DOAJ, Inter Copernicus, Agris, Zotero, J Gate, SIS, Open Science Archive, Rootinindexing, Cite Factor, DRJI, IIJIF, Research Bib, Research ID | ||
| Makale Dili | İngilizce | Basım Tarihi | 01-2018 |
| Cilt / Sayı / Sayfa | 3 / 3 / 265–281 | DOI | – |
| UAK Araştırma Alanları |
Hidrobiyoloji
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| Özet |
| Length-weight relationships and condition assessment are a common practice in fisheries analyses; however, such information is unknown for most sea cucumber species. The present study investigated length-weight relationships and relative condition indices of four commercially important sea cucumbers: Holothuria arenicola, Holothuria atra, Holothuria pardalis and Holothuria verrucosa. Additionally, the seasonal variations obtained between three climatic seasons (pre-monsoon, monsoon and post-monsoon) were analyzed. The results showed that the four species grow allometrically, with negative allometric b values ranging from 0.84 to 1.74. There were significant differences of length-weight relationships between climatic seasons for H. arenicola and H. atra. The lower b values were observed during post-monsoon and the higher b values during monsoon in three of the four species. During the post-monsoon, the condition of the bigger individuals of H. arenicola and H. atra was lower than that of the small individuals. The differences in length-weight relationships of H. pardalis and H. verrucosa were not significant between climatic events. The higher temperatures occurred during monsoon and the lower during post-monsoon, but these data only showed a significant correlation with the relative condition factor of H. arenicola. Best condition of the individuals of H. arenicola occurred at temperatures between 22 to 31°C. Studies about environmental variables and characteristics of the substratum type are necessary in order to complement the understanding of the length-weight relationships and condition of these species. |
| Anahtar Kelimeler |
