Comparison of electronic length frequency analysis (ELEFAN) for estimation of growth parameters for lollyfish, Holothuria (Holothuria) atra and sand sea cucumber, Holothuria (Thymiosycia) arenicola (Holothuroidea: Echinodermata) in the north Arabian Sea, Pakistan

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dc.contributor.authorAhmed, Quratulan
dc.contributor.authorBilgin, Sabri
dc.contributor.authorAlı, Qadeer Mohammad
dc.date.accessioned2025-03-23T19:09:13Z
dc.date.available2025-03-23T19:09:13Z
dc.date.issued2020
dc.departmentSinop Üniversitesi
dc.description.abstractTo estimate the growth parameters, the non-seasonal von Bertalanffy and Hoenig seasonal von Bertalanffy models were fitted to the length frequency data of Holothuria atra and H. arenicola obtained from coastal areas of Karachi in the northern Arabian Sea, Pakistan between January and December 2014. The Hoenig seasonal von Bertalanffy growth parameters were estimated as L∞=36.1 cm total length (TL), K=0.75 year-1 for H. atra and as L∞=34.9 cm TL, K=0.70 year-1 for H. arenicola. H. atra individuals reached 73.9% of their maximum total length at the one year old. For H. arenicola it was calculated as 72.7%. Monthly mean growth rate of H. atra at the same ages was calculated higher than H. arenicola. The seasonal oscillation in growth rate for H. atra (C=0.50) was larger than it was for H. arenicola (C=0.37). The time of the year when the growth is slowest corresponded to the middle of April (WP=0.30) in H. atra and at the beginning of August (WP=0.60) in H. arenicola may be the result of the extended both reproduction and poor nutrition periods due to monsoonal effects on the marine environment. The relatively high growth rates (K>0.7 year-1) of these two species may have important implications for high survival rate, particularly in environmental condition where cause biological stress and marine confusion but may also increase their potential as a candidate species for aquaculture.
dc.identifier.doi10.33714/masteb.744301
dc.identifier.endpage158
dc.identifier.issn2147-9666
dc.identifier.issue2
dc.identifier.startpage145
dc.identifier.trdizinid466830
dc.identifier.urihttps://doi.org/10.33714/masteb.744301
dc.identifier.urihttps://search.trdizin.gov.tr/tr/yayin/detay/466830
dc.identifier.urihttps://hdl.handle.net/11486/3318
dc.identifier.volume9
dc.indekslendigikaynakTR-Dizin
dc.language.isoen
dc.relation.ispartofMarine Science and Technology Bulletin
dc.relation.publicationcategoryMakale - Ulusal Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_TR_20250323
dc.subjectBalıkçılık
dc.titleComparison of electronic length frequency analysis (ELEFAN) for estimation of growth parameters for lollyfish, Holothuria (Holothuria) atra and sand sea cucumber, Holothuria (Thymiosycia) arenicola (Holothuroidea: Echinodermata) in the north Arabian Sea, Pakistan
dc.typeArticle

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