Length-weight relationship and condition factor of three endemic fish species, Ponticola bathybius, Neogobius caspius and N. pallasi (Perciformes: Gobiidae) from the Southern Caspian Sea basin, Iran

Nikmehr, Nasrin; Eagderi, Soheil; Poorbagher, Hadi; Abbasi, Keyvan

doi:10.12714/egejfas.38.4.14

Cited by 2 publications

(2 citation statements)

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“…This value was calculated as 1.00±0.18 for Ponticola bathybius from the Southern Caspian Sea basin in Iran (Nikmehr et al, 2021). Fulton's condition factor (K) values ranged from 0.72 to 1.48 in females (mean 1.14 ±0.09) and from 0.84 to 1.31 in males (mean 1.10±0.09) for Aksu goby, Ponticola turani from Terme Stream from the northern Türkiye (Yilmaz & Sakalli, 2020).…”

Section: Discussionmentioning

confidence: 99%

First Data on Some Biological Aspects of the Caucasian Goby, Ponticola constructor (Nordman, 1840) (Teleostei: Gobiidae) From the Lower Çoruh River Basin (NE Türkiye)

Yeşılçıçek

2022

Marine Science and Technology Bulletin

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The present study describes for the first time some biological aspects (size composition, sex ratio, length-weight relationship and condition factor) of Ponticola constructor (Caucasian goby) inhabiting Borçka Dam Lake and its tributaries from the lower Çoruh River Basin located in the northeastern Türkiye Fish samples were caught from June 2017 to May 2018 by using trammel nets with various mesh sizes and by pulsed DC electrofishing device. A total of 145 Caucasian goby (78 females and 67 males) ranging from 6.8 cm to 13.4 cm TL were sampled during the study. The sex ratio of female to male was calculated as 1.16:1.00 which did not deviate from the expected ratio of 1:1 (χ² = 0.834, p˃0.05). The total length-weight relationships were determined as W= 0.016TL2.896 (r2=0.995, P˂0.05) for females, as W= 0.018TL2.841 (r2=0.993, P˂0.05) for males and as W= 0.017TL2.856 (r2=0.994, P˂0.05) for combined sex with the b-values were significantly different from isometric growth (b=3) indicating negative allometric growth of Caucasian goby for all sexes (Pauly’s t- test, P˂0.05). The regression analysis revealed that the coefficient of determination was r2>0.99 showing a highly significant correlation between total length and weight. The differences in slopes (b values) of the LWR were statistically significant for both sexes (ANCOVA, P

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Section: Discussionmentioning

confidence: 99%

First Data on Some Biological Aspects of the Caucasian Goby, Ponticola constructor (Nordman, 1840) (Teleostei: Gobiidae) From the Lower Çoruh River Basin (NE Türkiye)

Yeşılçıçek

2022

Marine Science and Technology Bulletin

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“…The following relationships were found using linear regression analysis: (a) FL versus TL; (b) SL versus TL as FL= a + bTL and SL = a + bTL, respectively (Mouludi-Saleh and . Also, the following formula was used to calculate the condition factor (Fulton, 1904;Nikmehr et al, 2021):…”

Section: Methodsmentioning

confidence: 99%

Estimating length-weight, length-length relationships, and condition factor of eight fish species, a case study of Bashar River, Tigris drainage (Iran)

NASERABAD¹,

Poorbagher²,

Eagderi³

2022

EgeJFAS

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This study investigate investigated the length-weight, length-length relationships and condition factor of eight fish species collected from Bashar River, Tigris drainage by sampling 341 specimens of Alburnus sellal (Heckel, 1843), Barbus karunensis (Khaefi, Esmaeili, Geiger & Eagderi, 2017), Capoeta aculeate (Valenciennes, 1844), Capoeta coadi (Alwan, Zareian & Esmaeili, 2016), Chondrostoma regium (Heckel, 1843), Garra gymnothorax (Berg, 1949), Glyptothorax galaxias (Mousavi-Sabet, Eagderi, Vatandoust & Freyhof, 2021) and Turcinoemacheilus hafezi (Golzarianpour, Abdoli, Patimar & Freyhof, 2013). The results showed that the b parameter was form 2.41 (in C. aculeate) to 3.88 (in A. sellal) and condition factors ranged from 0.74 (in A. sellal and B. karunensis) to 1.35 (in C. aculeate). The coefficient of determination (r2) in the length-weight and length-length relationships was > 0.83. In conclusion, allometric growth patterns for A. sellal, B. karunensis, G. gymnothorax, and G. galaxias were positive while for C. aculata, C. regium and T. hafezi, and C. coadi presented negative patterns. This study represents the first data for G. galaxias.

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Length-weight relationship and condition factor of three endemic fish species, Ponticola bathybius, Neogobius caspius and N. pallasi (Perciformes: Gobiidae) from the Southern Caspian Sea basin, Iran

Cited by 2 publications

References 15 publications

First Data on Some Biological Aspects of the Caucasian Goby, Ponticola constructor (Nordman, 1840) (Teleostei: Gobiidae) From the Lower Çoruh River Basin (NE Türkiye)

First Data on Some Biological Aspects of the Caucasian Goby, Ponticola constructor (Nordman, 1840) (Teleostei: Gobiidae) From the Lower Çoruh River Basin (NE Türkiye)

Estimating length-weight, length-length relationships, and condition factor of eight fish species, a case study of Bashar River, Tigris drainage (Iran)

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