Length-weight and length-length relationships of three fish species (Cyprinidae) from Chahnimeh reservoirs, Zabol, in eastern Iran

Zare, Parviz; Moodi, Saeed; Masudinodushan, J.; Abdoli, Asghar

doi:10.1111/j.1439-0426.2011.01812.x

Cited by 5 publications

(2 citation statements)

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“…The log‐log plots for LWRs were exploited to eliminate the outliers (Froese, ) and the degrees of association between variables were computed by the coefficient of determination ( r 2 ). Length–length relationships (LLRs) such as TL versus SL, FL versus SL and FL versus TL were calculated by the linear regression equation similar to LWRs (Zare, Moodi, Masudinodushan, & Abdoli, ). All statistical analyses were done using spss version 20.0 (IBM Corporation, Chicago, IL).…”

Section: Methodsmentioning

confidence: 99%

Length-weight and length-length relationships of five fish species in the Atrai River, Dinajpur, Bangladesh

Islam

Mia

2016

J. Appl. Ichthyol.

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Summary A total of 502 specimens were obtained during monthly samplings from July to December 2015, by fishermen using seine nets, gillnets and cast nets. Length–weight (LWRs) and length–length (LLRs) relationships were estimated for five fish species collected from the Atrai River in the northwestern region of Bangladesh. The values of slope (b) in LWRs (r2 > .913, p < .001) were determined as 2.899 for Aspidoparia jaya, 3.059 for Gagata cenia, 3.004 for Gagata youssoufi, 2.755 for Salmophasia bacaila, and 3.222 for Salmophasia phulo, respectively. The linear relationships in TL, FL and SL were highly correlated (for all cases: r2 > .897, p < .001). No previous information on LWRs (except for G. cenia) and LLRs (except for S. bacaila) of these selected species were found in FishBase.

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Section: Methodsmentioning

confidence: 99%

Length-weight and length-length relationships of five fish species in the Atrai River, Dinajpur, Bangladesh

Islam

Mia

2016

J. Appl. Ichthyol.

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“…The length‐weight relationship (LWR) is an important tool in fish biology and fisheries assessment (Oscoz, Campos, & Escala, ). It can be used to estimate fish biomass from length frequency distributions, infer fish condition (Petrakis & Stergiou, ), and to compare life history and morphological aspects of fish populations inhabiting different regions (Zare, Moodi, Masudinodushan, & Abdoli, ).In this study, the LWRs for two fish species were determined from the Beijiang River, south China.…”

Section: Introductionmentioning

confidence: 99%

Length-weight relationships of two cyprinid fishes from the Beijiang River, Guangdong, China

Lan

Han

2018

J Appl Ichthyol

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Summary This study reports the length‐weight relationships (LWRs) of Acrossocheilus beijiangensis Wu & Lin, 1977 and Barbodes semifasciolatus (Günther, 1868) from the upper reaches of Beijiang River, Guangdong Province, China. Sample sizes for the two fish species were 335 for A. beijiangensis and 106 for B. semifasciolatus. Fishes were collected on a monthly basis between November 2013 and December 2014 using gill nets (30 m long × 1.2 m high, mesh‐size 1.5 cm) and fish cages (mesh‐size 0.5 cm). LWRs were established as W = 0.0052L3.3249 (r2 = .9696) for A. beijiangensis and W = 0.0088L3.2405 (r2 = .9469) for B. semifasciolatus. No previous information is available on LWRs for these two species in FishBase.

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Length-weight relationships of three schizothoracinae fish species from the Niyang River, a branch of the Yarlung Zangbo River, Tibet, China

Liu

2016

J. Appl. Ichthyol.

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SummaryThe focus was on the length-weight relationships of three schizothoracinae species endemic to Tibet, including Schizothorax oconnori Lloyd, 1908, Ptychobarbus dipogon (Regan, 1905 and Schizopygopsis younghusbandi Regan, 1905, all of which are characterized by slow growth, late maturation and vulnerability to the environment (Ma et al., 2010(Ma et al., , 2012Duan et al., 2014). Among them, Schizothorax oconnori is an endangered fish and listed in the China species Red List Xie, 2004, 2009). Samples were obtained by drift net fishing (mesh size 2 cm 9 3 cm; 50 m net length) in November 2008. The r 2 value was 0.94, 0.97, 0.98 and the b value 3.51, 3.12, 3.16, representing Schizothorax oconnori, Ptychobarbus dipogon, and Schizopygopsis younghusbandi, respectively. IntroductionTibet, known as the 'Water Tower of Asia', encompasses 20 rivers with drainage areas larger than 10 000 km 2 , a number second only to Sichuan Province in China (Guan and Chen, 1984). The largest river in Tibet is the Yarlung Zangbo River, a part of the international Brahmaputra River flowing into the Indian Ocean and is the fifth largest river in China and with five-first tributaries, including the Niyang River (Guan and Chen, 1984). The Niyang River (92°22 0~9 4°27 0 E; 29°26 02 9°55 0 N) is located in the western Nyingchi area of Tibet, with a 286 km total length, 17 535 km 2 drainage area, elevation drop of 2080 m, and an average slope of 7.27&. The general flow is from northwest to southeast, specifically, flowing from east to west in the upper course, then turning from south to east near Nyingchi County (Guan and Chen, 1984). Rapid social and economic development, including construction of the Duobu Hydropower Station, Lhasa-Nyingchi highway and Lhasa-Nyingchi railway, has resulted in many sandpits and cement mills within the Niyang River watershed. In addition, the relatively simple structure of the fish-bearing community leaves the river more vulnerable to environmental changes (Shen and Guo, 2008). Thus the urgent need for the study of the length-weight relationships (LWRs) of the three species, not only to supplement their known biological characteristics, but also to aid in their protection. Materials and methodsFishes were collected throughout November 2008 from the Niyang River, the main tributary of the Yarlung Zangbo River (long. 93°16 0 -94°27 0 E; lat. 29°26 0 -30°00 0 N), at an altitude ranging from 2919 to 3391 m. Captured specimens of each species should not introduce a bias with respect to length or weight (Froese, 2006;Oliva-Paterna et al., 2009); they were identified to species by consulting relevant books and a taxonomic key (Wu and Wu, 1992; TARBAP, 1995), valid fish names were checked in FishBase. Total lengths and body weights were measured to the nearest 0.1 cm and 0.1 g separately.The relationship between total length and body weight was estimated based on the formula: log W = log a + b 9 log L, where W is the weight of the fish (g), L is the total length (cm), a is the intercept of the regression coeffici...

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Length-weight and length-length relationships of three fish species (Cyprinidae) from Chahnimeh reservoirs, Zabol, in eastern Iran

Cited by 5 publications

References 4 publications

Length-weight and length-length relationships of five fish species in the Atrai River, Dinajpur, Bangladesh

Length-weight and length-length relationships of five fish species in the Atrai River, Dinajpur, Bangladesh

Length-weight relationships of two cyprinid fishes from the Beijiang River, Guangdong, China

Length-weight relationships of three schizothoracinae fish species from the Niyang River, a branch of the Yarlung Zangbo River, Tibet, China

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