Md. Yeamin Hossain1,*, Md. Alomgir Hossen1, Md. Nasir Uddin Pramanik1, Fairuz Nawer1, Md. Mosaddequr Rahman2, Suraiya Sharmin1, Dalia Khatun1, A. H. Bahkali3, Abdallah M. Elgorban3 and Khairun Yahya4
...cy distributions (LFDs), length-weight relationships (LWRs), length-length relationships (LLRs), condition factors (allometric, KA; Fulton’s, KF; relative, KR), relative weight (WR), form factor (a3.0), size at first sexual maturity (Lm) and natural mortality (MW) in the Ganges River, northwestern (NW) Bangladesh. Samples were collected ...
Mehmet Cilbiz1* and F. Banu Yalim2
...e. condition factor, length-weight relationship, K, L∞, to), mortality rate (Z, M, and F), recruitment pattern and yield were investigated for Oncorhynchus mykiss in Karacaören I Dam Lake. Fish were collected on monthly basis between July, 2013 and June, 2014. Growth parameters were analyzed by ELEFAN with monthly length–frequency data. The b values of the length-we...
Abdur Rahim1, Ghulam Abbas1,*, Sara Ferrando2, Lorenzo Gallus2 and Abdul Ghaffar3
Huseyin Sasi1* and Gulcin G. Ozay2
...cluding the age, growth, length-weight relationship and reproduction. The study was conducted in upper Akcay River between June 2012 and May 2013. Monthly data showed that native fish chub were aboundantly with other native fish (Acanthobrama mirabilis) in upper Akcay River. The age distribution for both females and males of S. cephalus populationwas betweenI-VII, and the second age group was found at maximum rate of 30.60%. Their fork lengths an...
Semra Benzer1,* and Recep Benzer2
...with tradional method of length-weight relation (LWR) Equation and Artificial Neural Networks (ANNs) method. The growth estimation of 540 crayfish was carried out with both methods and the obtained results were compared. Then, the estimated values found via both examined methods. Coefficient correlation (r2), sum square error (SSE), mean absolute percentage error performance criteria (MAPE) were used for comparison of artificial neural network and l...
Haji Muhammad1, 2, Zafar Iqbal1, Qamar Bashir2, Muhammad Amir Hanif3
...dy was aimed to describe length-weight relationship and condition factor of 18 cat fish species belonging to five families of Indus River in Taunsa barrage from Punjab, Pakistan. The value of length weight relationship (LWR) equation and condition factor (K) ranged W= -0.249 TL0.79 – W= -2.803 TL3.55 and 0.07 – 1.69 respectively. The objective of this study was to determine LWR and condition factor of cat fish species of Indus River that could help...
Olaniyi Alaba Olopade1,*, Henry Eyina Dienye1, Bosede Jimba1, Nathanael Akinsafe Bamidele2, Iyabo Olusola Taiwo2
...d out to investigate the length-weight relationship and condition factor of Coptodon guineensis from the New Calabar River and Buguma Creek, Nigeria. Assessments of the length and weight parameters indicated that the total length ranged from 12.4 cm to 29.8 cm with a mean value of 17.84±0.40 and the weight varied between 41g to 640g in subject collected from New Calabar River population. In Buguma Creek, the total length ranged from 10.9 cm to 23...
Mehmet Aydın*
...o;b” values of the length-weight relationship among these five species were estimated as 2.442 (for L. navigator) and 3.007 (for P. marmoratus), respectively. Growth was found as isometric for P. marmoratus and C. aestuarii, and as negative allometric for L. depurator, L. navigator and E. verrucosa.
... 
Muhammad Javed Iqbal and Muhammad Naeem*
...s showed an increment in length-weight variants. Present findings indicate that fish dislike the fish meal diet and preferred the plant origin sources ...
Merica Slišković1, Meta Povž2, Marina Piria3,*, Goran Jakšić4, Ana Gracanin5 andGorana Jelić Mrčelić1
...ues. The age, condition, length-weight relationship (LWR), 20 morphometric and four meristic traits, were analysed. Fulton condition coefficient and LWR value indicated that sichel specimens’ were well adapted to the environmental conditions. Positive allometry in both males and females were observed (W = 0.004 L3.119). This represents the first LWR dataset for sichel. The morphometric and meristic traits values from this researc...
Haji Muhammad1, Zafar Iqbal1, Tanveer Akhlaq2
Length-weight, length-length relationships and condition factor of fishes of family cyprindae from the Indus River, Pakistan
...ried out to describe the length-weight relationship (LWR), length-length relationships (LLRs) and
condition factor (K) in 926 specimens belonging to 20 freshwater fish species of family cyprinidae. Fish samples were
collected on a monthly basis from August 2013 to July 2014 at Taunsa barrage from the Indus River, Punjab,
Pakistan. The values of parameter b for LWRs ranged from 2.16 – 4.10 suggesting the isometric and allometric
...
condition factor (K) in 926 specimens belonging to 20 freshwater fish species of family cyprinidae. Fish samples were
collected on a monthly basis from August 2013 to July 2014 at Taunsa barrage from the Indus River, Punjab,
Pakistan. The values of parameter b for LWRs ranged from 2.16 – 4.10 suggesting the isometric and allometric
...
Abir Ishtiaq, Muhammad Naeem*
Length-weight relationships and condition factor for farmed Catla catla (Hamilton, 1822) from southern Punjab, Pakistan
...een carried out to study length-weight relationships (LWRs) and condition factor (K) of
renowned and highly commercial freshwater major carp, thaila (Catla catla) from farming system. Mean±S.E. total
length (TL) and body weight (W) of studied samples have been calculated as 39.29±0.23 cm and 827.43±14.55 g,
respectively. For LWRs, specimens of C.catla were collected from fish ponds and grouped into three categories on<...
renowned and highly commercial freshwater major carp, thaila (Catla catla) from farming system. Mean±S.E. total
length (TL) and body weight (W) of studied samples have been calculated as 39.29±0.23 cm and 827.43±14.55 g,
respectively. For LWRs, specimens of C.catla were collected from fish ponds and grouped into three categories on<...
Jun Zhang, Kui Zhang, Zuozhi Chen*, Yane Jiang, Yancong Cai, Yuyan Gong and Wenming Yu
...resent study reports the length-weight relationship parameters of dominant coral reef fish species in the South China Sea. The specimes were collected by hand-line in the lagoons of five representative coral reefs during June 2013 to September 2018. According to FishBase, this study provides first report on LWR of six studied species and practically available parameters on LWR for three species. The estimated b values ranged between 2.218 (Parapercis...
Sevil Demirci*, Aydın Demirci and Emrah Şimşek
Wen Xiong1,2*, Qitao Zeng2, Dangen Gu1 and Yinchang Hu1*
...">This study presents 49 length-weight relationships gathered from literature and our investigation pertaining to Gambusia affinis and G. holbrooki. The value of the slope b ranged from 2.44 for male G. holbrooki in Tajan River (Iran) to 3.81 for combined G. holbrooki in reservoirs of Segura River basin (Spain). The mean value of b was 3.11 (SD =0.30), which significantly higher than 3 (t-test, p<0.05). The median v...
Muhammad Khalid1,2, Samrah Masud2, Zara Naeem2, Muhammad Munir Shahid3, Ammar Danyal Naeem2, Abir Ishtiaq2 and Muhammad Naeem2*
Length-weight and Length-length Relationships of Farmed Catla catla during Winter Season from Muzaffargarh, Pakistan
...lign: justify;">To study length-weight relationship (LWR) and length-length relationships (LLRs) of farmed Catla catla, thirty fish specimens were collected from a fish farm located at Muzaffargarh, Pakistan during January, 2019. Total length (TL), standard length (SL), fork length (FL) and body weight was taken of each fish specimen. Mean TL and body weight (W) of studied fish specimens of C. catla was found 49.14±1.58 cm and 1775.29±191.18 g, r...
Shouguo Yang1, Fen Cheng1, Xiangyu Wu1, YiXuan Xing1, ZhiFeng Gu2 and Xianming Tang1,*
...experimental period. The length-weight relationship can be expressed as Wt = 0.0734×SL2.7817 (R2 = 0.9924) and width-weight can be expressed as Wt = 0.5763×SW3.036 (R2 = 0.974). The correlation coefficients between morphometric traits and total weight reached the significant level. With the increasing of animal age, the growth of total shell length, width and weig...
Tasleem Akhtar1, 2, Ghazanfar Ali1,* and Nuzhat Shafi2
...all;">The morphometrics, length-weight relationships and condition factor are presented for commercially important Schizothoracinae from Neelum and Jhelum rivers during 2015-2016. In the present study, four species of Schizothorax had been found, in which three species were already reported (S. esocinus, S. plagiostomus and S. progastus) and one new species (S. niger) was found first time in AJK. One hundred and fifty-nine specimens...
A.E.S. Patrick1,*, S. Kuganathan2 and U. Edirisinghe3
...r regression analysis of length-weight relationships (LWRs) were studied to reveal the growth patterns of 380 specimens belonging to 10 species, 9 genera and 5 families of local fish in Vavuniya reservoir, Sri Lanka during January, 2013 to August, 2014. The regression coefficient value ‘b’ from LWR and statistical comparison from the ideal value (b=3) were used to find the growth patterns. Most of the local species showed isometric gr...
Shuli Zhu, Yaqiu Liu, Weitao Chen, Xinhui Li and Yuefei Li*
Dalia Khatun1, Md. Yeamin Hossain1,2*, Md. Firose Hossain3, Zannatul Mawa1, Md. Ataur Rahman1, Md. Rabiul Hasan1, Md. Akhtarul Islam1, Md. Ashekur Rahman1, Habib Ul Hassan4 and Sadicun Nahar Sikha1
...cy distributions (LFDs), length-weight relationships (LWRs), length-length relationships (LLRs), condition factors (allometric, KA, Fulton’s, KF, relative, KR, and relative weight, WR), form factor (a3.0), size at fist sexual maturity (Lm) and natural mortality (MW) using multi-model indices from the Ganges River of northwestern Bangladesh. For each individual, the total length (TL), fork length (FL), standard length (SL), and body weight (BW) were measu...
Ji Feng, Yuan Li, Puqing Song, Ran Zhang, Hai Li and Longshan Lin*
...ext-align: justify;">The length-weight relationships (LWRs) of six fish species from the central and southern South China Sea are presented in this study. A total of 359 specimens were collected by light falling nets (20~36 mm mesh size) in 2012. The b values of the LWR equations varied between 2.670 and 3.265 for the studied species. As a supplement to LWR data, it is the first time that relevant data from this sea area have been provided to fish base....
Abdul Malik Ahmed, Bhargav Bhushan Nath, Ayub Ali, Jiten Sarma, Bipul Phukan, Imtiaz Ahmed* and Jyotirmoyee Das
...n District of Assam. The length-weight relationship of Gudusia chapra was found to be W=0.01L2.897, W=0.01L2.9165 and W=0.01L2.9214 for male, female and pooled samples, respectively. The ‘b’ value was recorded to be deviating (P<0.01) from the value of ‘3’ indicating a negative allometric growth of the species. The overall sex ratio (M:F) was 1:1.84 (Chi-square 40.38, P <0.01), indicating the predominance of females over males. Mo...
Huahua Fang, Daquan Zhou and Xiaoyu Dong*
...justify;">In this study, length-weight relationships (LWR) of three fish species (Lepidotrigla microptera, Liparis tanakae and Trachidermus fasciatus) from the Yellow Sea along coastal waters of Shandong province, China were estimated. Ninety-one samples were collected from March to June 2019 through trawl nets in the Yellow sea area (36°27′02″N 121°08′68″E). The length-weight relationships of...
Momotaz Khanom*, Sheikh Mustafizur Rahman, Muhammad Yousuf Ali, Md. Shahin Parvez, Al-Hasan Antu, Md. Nazmul Ahsan
Abdul Majeed1, Zhenlin Liang2, Lixin Zhu2, Chunli Liu2, Muhsan Ali Kalhoro1,* and Faisal Saeed1
... total of 1,027 pairs of length-weight and length-frequency data distribution were measured. Computer software FiSAT package was used to analyze the growth and mortality rate parameters. The length-weight relationship values for male was W= 0.016xb2.906 (R² = 0.950) and female was W= 0.029xb2.724 (R² = 0.941). The combined data of both sexes were W= 0.021xb2.830 (R² = 0.945). The electronic length-frequency an...
Jun Wang*, Xiaoming Jiang and Zhiwei Sun
... present study estimates length-weight relationships (LWRs) of fish species from the mainstream of the Yellow River, which is the largest sediment-laden river in the world. A total of 1168 specimens belonging to 4 families and 18 species were analysed. The following fish species were covered: Leuciscus chuanchicus (Kessler, 1876); Ctenopharyngodon idella (Valenciennes, 1844); Squaliobarbus curriculus (Richardson, 1846); Parabramis pekinensis (Basilewsky, 1855)...
Muhammad Rabiul Hasan1, Zannatul Mawa1, Muhammad Ashekur Rahman1, Selina Yeasmin2, Yahia Mahmud2 and Muhammad Yeamin Hossain1*
...Population structure and length-weight relationships of two mussels (Anadara granosa and Meretrix lamarckii) in the Bay of Bengal, Bangladesh were investigated based on occasional data from January to December 2020. Samples were collected from the sampling sites (Sathkhira and Cox’sBazar) with the help of laborer in the presence of Principal investigator and research assistant. This study also revealed the maximum recorded length of A. granosa and first ...
Most. Shakila Sarmin1,2, Md. Ashekur Rahman1,2, Most. Farida Parvin2,3, Mst. Shefaly Khatun4, Kazi Ahsan Habib5, Wasim Sabbir6, Jun Ohtomi7 and Md. Yeamin Hossain1*
...728.0 g for females. The length-weight relations (LWRs) were significantly correlated (p < 0.0001), with values of r2 ≥ 0.961. The monthly co-efficient (b) revealed negative allometric growth (< 3.0) of all LWRs for both sexes, excluding males showed isometric growth in December (TL vs. BW). Additionally, length-length relationships (LLRs) indicated notable relation (p < 0.0001), with all r2 ≥ 0.991. The estimated Lm was 27.82 and 23.92 cm for m...
Nam Thanh Nguyen1,2,3, Linh Manh Ha4, Anh Thi Nguyen5, Nam Hoang Chu5, Hau Duc Tran5, Hung Phuc Nguyen5 and Thuy Thi Ta6*
...hometric characters, the length-weight relationship, and the conditions for assessing and managing the fish populations is unknown. The present study tested the intersex differences in growth of morphometric characters, sexual and seasonal change in length-weight relationship, and growth conditions for this species based on a year-round (2018‒2019) wild specimen collection in northern Vietnam. Four morphometric characteris...
Munawar Lal1*, Naeem Tariq Narejo2, Muhammad Hanif Chandio1, Faheem Saddar3, Hameeda Narejo4, Ghulam Dastagir5, Ghulam Abbas6 and Shahnaz Rashid6
...2.92 and r2 = 0.98). The length-weight analysis values and the coefficient of condition showed that the growth of the five dominant species from Nurri Lake, District Badin, Sindh, Pakistan, was nearly ideal and satisfactory. The relative condition factor (Kn) was found to be fluctuating between 0.98 and 1.01 in all five dominant species. Results indicated that the values of length-weight and coefficient of condition analysis...
Nasratullah Baloch1, Naeem Tariq Narejo2, Hamida Narejo3, Muhammad Farooq Hassan4, Ghulam Abbas5, Shahnaz Rashid5, Muhammad Hanif Chandio6, Faheem Saddar7 and Majida Parveen Narejo8
Sha Li1,2, Yacheng Hu1,2, Wenjing Li3, Wei Su1,2 and Wei Jiang1,2*
...tify;">We determined the length-weight relationships (LWRs) and length-length relationships (LLRs) for nine fish species belonging to three families inhabiting the Yichang reach of the middle Yangtze River, China. The samples were collected with gill nets (2×50 m, mesh size: 40 and 60 mm) between November 5th, 2019, and December 31st, 2019. A total of 1252 specimens were used to estimate the related parameters. The LWRs parameters of all nine species we...
Sudhan Chandran1*, GB Sreekanth2, Geetanjali Deshmukhe1 and Ashok Kumar Jaiswar1*
...ext-align: justify;">The length-weight relationships were estimated for two creek associated mangrove fishes caught in Gorai creek, Mumbai, North-Western part of Maharashtra, India using dol nets. The dol net fishing took place from August, 2019 to July, 2020 in monthly intervals, using dol nets of equipped with mesh size of 280 mm at mouth part and 20 mm at cod end part of the dol net. The dol nets fabricated with nylon multifilament were operated from 6 to 2...
Zahid Ali1,2, Muhsan Ali Kalhoro1*, Nazeer Ahmed1,3, Muhammad Shafi1, Faisal Saeed1 and Abdul Majeed1
...During current study the length-weight relationship, growth, mortality, and exploitation rate was estimated from Balochistan, Pakistan. The length frequency data (n=1635) and length-weight relationship (n=603) of fish was collected from three fish landing sites of Balochistan coast during 2022. The growth, mortality and exploitation of fish was evaluated after analyzing the length frequency distribution in to ELEFAN me...
Xinyue Wang1, Shengao Chen1,2*, Fangze Zi1, Jianmin Ge1, Desheng Chang1, Yong Song1 and Congxin Xie2
Guangcan Lin1,2,3, Xingyu Chen1,2,3, Xiaohao Shi1,2,3, Xiaolin Li1,2,3,
Anwar Tanwari Kamran4, Zhengxiang Wang1,2,3, Qing Zhu5, Gaodao Liang5* and Lei Pan1,2,3*
... reports of the P. parva length-weight relationships (LWRs) around the world has been documented, especially comparing indigenous and non-indigenous populations. Thus, the goal of the current study was to offer a systematic report of P. parva LWRs worldwide and a comparison of P. parva LWRs in native and non-native regions. In the present results, P. parva showed positive-allometric growth, it became more rounded as the length increases, and both native and in...
