Length-weight relationships of three cyprinid fish species from southwestern China

Cao, Heqin; Yang, Zhi Min; Cai, Ling; Pan, Lei

doi:10.1111/jai.13085

Cited by 9 publications

(10 citation statements)

References 5 publications

(5 reference statements)

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“…Comparing the obtained b values with those of previous studies (Cao, Yang, Cai, & Pan, 2016;Chen et al, 2016;Duan et al, 2015;Lei, Liang, Sui, & Chen, 2015;Que et al, 2015;Yang et al, 2016) value represents the body form of fish (Froese, Thorson, & Reyes, 2014), and is affected by a number of factors such as gonad maturity, sex, diet, stomach fullness, health, age, fishing time as well as the area and fishing vessels (Sani et al, 2010). However, these factors were not considered in the present study.…”

Section: Discussionmentioning

confidence: 71%

Length-weight relationships for five fishes in the Pengxi River, a main tributary of the Three Gorges Reservoir, China

et al. 2017

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SummaryThe length-weight relationships and new total length are described for five fish species in the Pengxi River basin of the Three Gorges Reservoir. Fish were occasionally sampled from five sites between 2009 and 2014, using various gill nets (mesh size range 2-12 cm) and electrofishing. For four of the five species studied a new maximum total length not yet recorded in previous length-weight estimates have been found. These data will help to convert length data from field studies in the Three Gorges Reservoir into weight and biomass. | INTRODUCTIONThe Pengxi River (30°50′-31°42′N, 107°56′-108°54′E) is one of the main tributaries on the north shore of the Three Gorges Reservoir .3"N); the Gaoyang (108°41'13.9"E;31°5'57.9"N); the Huangshi (108°43'37.24"E;31°0'15.9"N) and the Shuanghe (108°41'24.6"E; 30°56'51.9"N) from upper stream to lower stream. Samples were captured using various sets of gill nets (major mesh size: 2-12 cm) and electrofishing. Specimen identification was carried out to species level in the field according to Ding (1994). Individuals that were too small to be distinguished externally were considered juveniles. | MATERIALS AND METHODS SamplesEach specimen was measured for total length (TL) and body weight (BW). The statistical relationship between TL and BW was established through the linear regression of log BW = log a + b log TL.The parameters a and b were the intercept of the regression and the slope or regression coefficient, respectively. And the 95% confidence limits for a and b (CL 95%) was determined for the parame-

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Section: Discussionmentioning

confidence: 71%

Length-weight relationships for five fishes in the Pengxi River, a main tributary of the Three Gorges Reservoir, China

et al. 2017

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“…Length–weight relationships were determined by applying the equation W = aL b , where W is the total body weight (g), L is the total body length (cm), a is the intercept and b is the slope (Froese, ; Froese et al., ). The length–length relationship was estimated by linear regression analysis: TL = a + b × SL and SL = a + b × FL, where a is the intercept and b is the slope of the linear regression (Cao, Yang, Cai, & Pan, ).…”

Section: Methodsmentioning

confidence: 99%

Length-weight and length-length relationships for seven fish species from the Zohreh River, Iran

Keivany

Zamani-Faradonbe

2017

J Appl Ichthyol

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Summary Length–weight and length–length parameters were calculated for seven fish species belonging to five families in the Zohreh River, Iran. The weight–length relationships were estimated using the equation W = aLb. The b values varied between 2.72 and 3.33, with a mean ± SD of 2.88 ± 0.28. The b values parameter in the length–weight relationship equations were calculated as 3.15 for Alburnus mossulensis Heckel, 1843; 3.78 for Barilius mesopotamicus Berg, 1932; 2.86 for Cyprinion macrostomum Heckel, 1843; 2.89 for Nuchequula gerreoides (Bleeker, 1851); 2.80 for Mastacembelus mastacembelus (Banks & Solander, 1794); 2.72 for Liza abu (Heckel, 1843); and 3.19 for Paraschistura nielseni (Nalbant and Bianco, 1998). This study presents the first LWR and LLR references for these species in the Zohreh River.

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“…Length‐weight relationships (LWRs) are important tools to convert length into weight, particularly in field studies where weighing the fish is often not possible (Cao, Yang, Cai, & Pan, ; Froese, ; Pan et al., ; Que et al., ). The Niulan is an important river of the Jinsha tributary and important to local fisheries.…”

Section: Introductionmentioning

confidence: 99%

Length-weight relationships of four fish species from the Niulan River, China

2017

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Summary This study provides the length–weight relationships (LWRs) for four fish species [Leptobotia rubrilabris (Dabry de Thiersant, 1872); Opsariichthys bidens Günther, 1873; Xenocypris yunnanensis Nichols, 1925; and Sinogastromyzon sichangensis Chang, 1944] collected from the Niulan River, China. Samples were obtained between April 2008 and June 2011 using various types of fishing gear [drift gill nets (mesh: 5 × 5 cm), hook and electro fishing]. A total of 136 specimens belonging to four fish species were analyzed. For each species the sample size, length range, weight range, LWR, 95% confidence intervals of a and b, and coefficient of correlation were determined. Prior to this study, the LWRs for S. sichangensis and X. yunnanensis were unknown. New maximum sizes for S. sichangensis and X. yunnanensis are also provided.

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Length-weight relationships of three cyprinid fish species from southwestern China

Cited by 9 publications

References 5 publications

Length-weight relationships for five fishes in the Pengxi River, a main tributary of the Three Gorges Reservoir, China

Length-weight relationships for five fishes in the Pengxi River, a main tributary of the Three Gorges Reservoir, China

Length-weight and length-length relationships for seven fish species from the Zohreh River, Iran

Length-weight relationships of four fish species from the Niulan River, China

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