scholarly journals Length-Weight Relationship and Sex Ratio of Amblypharyngodon Mola in Dekar Haor of Sunamganj, Bangladesh

2018 ◽  
Vol 44 (2) ◽  
pp. 185-193
Author(s):  
PR Das ◽  
MS Uddin ◽  
MS Islam ◽  
M Biswas ◽  
MR Mia
Keyword(s):  
Sex Ratio ◽  
Freshwater Fish ◽  
Condition Factor ◽  
Correlation Coefficients ◽  
Male And Female ◽  
Positive Correlation ◽  
Average Ratio ◽  
Weight Relationship ◽  
R Value ◽  
Relationship Of

The study was carried out to determine length-weight relationship and sex ratio of a freshwater fish Amblypharyngodon mola (Hamilton 1822) collected from Dekar haor of Sunamganj district during the period of January to August 2017. A total of 2000 fishes were collected for the study and categorized these fishes into three groups namely males, females and combined sexes. Among 2000 mola 777 were male and 1223 were female. Length-weight equations and the correlation coefficients obtained for males, females and combined ones were: males Y = –1.97 + 3.00X, r = 0.883; females Y = –2.30 + 3.41X, r = 0.914 and combined Y = –2.11 + 3.16X, r = 0.904. Female’s A. mola attained more weight with the increases in length. Value of correlation coefficient ‘r’ was 0.883 for male and exhibited highly positive correlation between length and weight. On the contrary, ‘r’ value for female was 0.914 and it had also strongly positive correlation between length and weight relationships. Length-weight relationship of A. mola for male, female and combined sexes showed allometric pattern of growth. Condition factor ‘K’ for male, female and combined sexes was 1.09, 1.05 and 1.06, respectively and indicated better condition of fishes. The highest sex ratio (1 : 2.05) was found in May and the lowest (1 : 1.33) was in February. Dominance of females over males throughout the year was observed with an average ratio of male and female 1 : 1.57. Therefore, results of the study indicate that the existing hydrobiological conditions of the haor are conducive for food availability, free movement, feeding and better growth of the fish. Asiat. Soc. Bangladesh, Sci. 44(2): 185-193, December 2018

scholarly journals Hubungan panjang bobot dan faktor kondisi ikan wader bintik dua Barbodes binotatus (Valenciennes, 1842) di Sungai Barambai Samarinda Kalimantan

2019 ◽  
Vol 18 (2) ◽  
pp. 87 ◽  
Author(s):  
. Jusmaldi ◽  
Nova Hariani
Keyword(s):  
Sex Ratio ◽  
Condition Factor ◽  
Mean Value ◽  
Male And Female ◽  
Weight Relationship ◽  
Total Length ◽  
East Kalimantan ◽  
Fish Samples

Biology of the spotted barb Barbodes binotatus (Valenciennes, 1842) in Barambai River, east Kalimantan is unknown. This study aimed to analyses sizes of fish, sex ratio, length-weight relationship and condition factor of the spotted barb. A total of 347 fish samples were collected by several gears in Barambai River from August to October 2017. The results of this research showed that the total length of the fish ranged from 45.67 to 146.01 mm and weight ranged from 1.27-43.34 g. The sex ratio of male and female were 1:1.12. The length-weight equations for males was W = 1x10-5 L3.063, W = 8x10-6L3.108 for females, and W = 9 x 10-6 L3.091 for both sexes. The condition factor (K) for the spotted barb was ranged between 0.826 – 2.214 with mean value of 1.163.  AbstrakBiologi ikan wader bintik dua Barbodes binotatus (Valenciennes, 1842) di Sungai Barambai, Kalimantan Timur belum diketahui. Penelitian ini bertujuan menganalisis ukuran ikan, nisbah kelamin, hubungan panjang bobot, dan faktor kon-disi. Total 347 sampel ikan dikumpulkan dengan menggunakan berbagai alat tangkap di Sungai Barambai dari bulan Agustus sampai Oktober 2017. Hasil penelitian menunjukkan bahwa panjang total ikan berkisar dari 45,67 sampai 146,01 mm dan bobot tubuh berkisar 1,27- 43,34 gram. Nisbah kelamin jantan dan betina 1: 1,12. Model hubungan panjang bobot ikan jantan W = 1x10-5 L3,063, ikan betina W = 8x10-6L3,108,dan keseluruhan jenis ikan W =  9 x 10-6  L3,091. Faktor kondisi (K) ikanwader bintik dua berkisar antara 0,826 - 2,214 dan rata-rata 1,163. 

scholarly journals Length-weight relationship and condition factor of endemic fish Bilih (Mystacoleucus padangensis Blkr.) in Lake Singkarak, West Sumatra, Indonesia

2021 ◽  
Vol 322 ◽  
pp. 01036
Author(s):  
Syahroma H. Nasution ◽  
Ira Akhdiana ◽  
M. Suhaemi Syawal ◽  
Agus Nurhidyat
Keyword(s):  
Condition Factor ◽  
Economic Value ◽  
Normal Range ◽  
Female Fish ◽  
High Demand ◽  
Male And Female ◽  
Weight Relationship ◽  
West Sumatra ◽  
Males And Females ◽  
Relationship Of

Bilih (Mystacoleucus padangensis) is an endemic species of Lake Singkarak and has important economic value. Overfishing of Bilih fish using non-selective fishing gear has led to a decline in its population. High demand, resulting in decreased production and size of Bilih fish. This research aims to determine this endemic fish's length-weight relationship and condition factor as basic data to the effort conservation. The fish was captured with experimental gillnet mesh sized 5/8, ¾, and 1 inch in Sumani, Batu Taba, Paninggahan, and PLTA intake stations. The total length and the weight of Bilih fish ranged from 40 – 95 mm and 10 – 74 mg, respectively. The highest length and weight of Bilih were 80.3 mm, and 45.0 mg were found at the Sumani station. The growth pattern of male and female fish was a negative allometric characteristic. The length-weight relationship of male and female fish was W = 0.00137 L2.368 and W = 0.00179 L2.312, respectively. Condition factors of males and females are 1.02 and 1.004, respectively. The result of condition factor value for males is higher than the female. The water quality values are within the normal range that supports fish life.

scholarly journals Native Species in Barito Upstream at South Kalimantan, Indonesia: Sex Ratio and Length-Weight Relationship of Seluang Batang Fish (Rasbora argyrotaenia Blkr 1850)

2016 ◽  
Vol 4 (2) ◽  
Author(s):  
Erwin Rosadi ◽  
Endang Yuli H. ◽  
Daduk Satyohadi ◽  
Gatut Bintoro
Keyword(s):  
Sex Ratio ◽  
Native Species ◽  
Scientific Data ◽  
Time Interval ◽  
Female Fish ◽  
Male And Female ◽  
Weight Relationship ◽  
Intensive Exploitation ◽  
Chi Square Analysis ◽  
Relationship Of

<p>Freshwater potential in South Kalimantan is one million hectares and 140 species of fish are exploited. One of the fish resources in the intensive exploitation in South Kalimantan is Seluang Batang fish (<em>Rasbora argyrotaenia</em>). The purpose of this study was to obtain scientific data related to the sex ratio of fish and length-weight relationships of <em>R. argyrotaenia</em> in Barito upstream at South Kalimantan. The study was conducted in the Barito upstream in South Kalimantan, on location 2<sup>o</sup>57'36.10'' S 114<sup>o</sup>5'37.92'' E; 3<sup>o</sup>01'07.86" S 114<sup>o</sup>45'29.28'' E. Taking of samples by the method of Ford-Walford plot lasts for one year with a fixed time interval decision which is one month. Data obtained by comparing the sex ratio between the number of male fish with the number of females and multiplied by 100%. To test the hypothesis difference in the number of male and female fish used chi-square analysis of the end. Analysis of length-weight relationship of fish with regression test and were calculated using a cubic pattern. The results showed that the ratio of fish <em>R. argyrotaenia</em> male and female is 3: 1 and the growth pattern of male and female fish are negative allometric.</p>

scholarly journals HUBUNGAN PANJANG-BOBOT DAN FAKTOR KONDISI IKAN NILEM (Osteochilus vittatus VALENCIENNES, 1842) DI PERAIRAN WADUK BENANGA, KALIMANTAN TIMUR

2020 ◽  
Vol 19 (2) ◽  
Author(s):  
Jusmaldi Jusmaldi ◽  
Nova Hariani ◽  
Nikmahtulhaniah Ayu Wulandari
Keyword(s):  
Body Weight ◽  
Sex Ratio ◽  
Condition Factor ◽  
Mesh Size ◽  
Growth Patterns ◽  
Male And Female ◽  
Tropical Regions ◽  
Weight Relationship ◽  
East Kalimantan ◽  
Gill Net

Biology of bonylip barb (Osteochilus vittatus Valenciennes, 1842) in Benanga Reservoir, East Kalimantan is not yet known. The purpose of this study was to analyze distribution of the length and body weight of fishes, sex ratio, gonad maturity level, length-body weight relationship, and condition factor. In total 278 fishes samples were collected during the five months, from January to May 2019 with a purposive sampling method at Benanga Reservoir, and gill net with  mesh size 0.5; 1; and 1.5  inches used. The results of this research showed that the total length of the fishes analyzed ranged from 72.21–196.57 mm and body weight ranged from 5.12–89.21 g. The sex ratio of male and female were 1:2.02. The male and female fishes were dominated by mature gonad. The length-body weight relationship models calculated for the total fishes sample was W=1x10-5L2.967 (r=0.988) for males, W=5x10-6L3.199 (r=0.989) for females and W=7x10-6L3.126 (r=0.987) for both sexes. Isometric growth patterns (b=3) were observed in males, meanwhile positive allometric growth patterns (b>3) were observed in females and both sexes. Calculation of the condition factor (K) resulted in 1.181±0.117 for males, 0.949±0.094 for females, and 1.026±0.150 for all specimens. The condition factors of bonylip barb from the Benanga Reservoir inside the range recommended as suitable for freshwater fish species in the tropical regions.   

scholarly journals Biological parameters of Bonylip barb (Osteochilus vittatus Valenciennes, 1842) in Lake Rawa Pening Semarang Regency

2020 ◽  
Vol 20 (3) ◽  
pp. 251
Author(s):  
Sadza Maulidyasari ◽  
Djumanto Djumanto
Keyword(s):  
Sex Ratio ◽  
Condition Factor ◽  
Good Condition ◽  
Biological Parameters ◽  
Chi Square ◽  
Weight Range ◽  
Weight Relationship ◽  
Length Range ◽  
Chi Square Test ◽  
Relationship Of

Bonylip barb (Osteochilus vittatus Valenciennes, 1842) is an indigenous fish which is the main target of fishermen in lake Rawa Pening. This study aims to determine the biological parameters including length-weight relationship, con-dition factor, and sex ratio of bonylip barb in lake Rawa Pening, Semarang Regency. Fish sampling was conducted biweekly from October 2019 to March 2020, caught using bamboo blinds operated by local fishermen. Data collected consisted of total length, individual weight, and sex. Data on the length-weight relationship and condition factors were analyzed descriptively, while the sex ratio was analyzed with the chi-square test (χ2). The results showed that female bonylip barb was obtained as many as 392 individuals with a length-range between 10.0-26.0 cm and a weight range between 14.5-264.1 g. The male counted 255 individuals with a length range of 10.2-22.4 cm and a weight range of 15.0-160.9 g. The growth pattern was allometric negative. The equation of the length-weight relationship of female was W = 0.0186 L 2.9096 (R² = 0.9527), and the male was W = 0.0151 L 2.9689 (R² = 0.9386). The value of the average condition factor of females was 1.05, and the males was 1.02. The condition factor in females was in excellent condition (> 1.05), and males were in good condition (0.95-1.05). The overall sex ratio of male and female was 1:1.54. It means that females population was significantly higher than males.

scholarly journals Length-Weight Relationship of Some Fish Species in a Tropical Rainforest River in South-East Nigeria

2015 ◽  
Vol 17 (2) ◽  
pp. 73-78
Author(s):  
Godwin Adaka ◽  
Eunice Ndukwe ◽  
Anthony Nlewadim
Keyword(s):  
Fish Species ◽  
Growth Pattern ◽  
Condition Factor ◽  
Good Condition ◽  
B Value ◽  
Positive Correlation ◽  
Weight Relationship ◽  
Tilapia Zillii ◽  
Relationship Of ◽  
High Degree

Abstract The Length-Weight relationship of some fish species from Oramiri-Ukwa River, was studied from January to December, 2014. The slope (b) values obtained in the nine species ranged from 1.830 to 5.670 with most of the fishes indicating a negative allometric growth pattern except for Papyrocranus afer, with b value of 3.04, thus showing a positive isometric growth pattern. The following fish species showed a high degree of positive correlation at (P > 0.05); Ctenopoma kingselyae, Alestes imberi, Channa obscura, Oreochromis niloticus, Tilapia mariae, Tilapia zillii, Synodontis omais, and Papyrocranus afer. Chrysichthys auratus did not show this positive correlation. The condition factor (K) of the fish species ranged from 0.99 to 4.54, indicating that most of the fish were in good condition except for Chrysichthys auratus with 0.99.

scholarly journals Length-weight relationship, condition factor and sex ratio of tade mullet (Liza tade Forsskal, 1775) from Mawlamyine, Mon state, Myanmar

2020 ◽  
Vol 9 (4) ◽  
pp. 107-112
Author(s):  
Ei Ei Mon
Keyword(s):  
Sex Ratio ◽  
Correlation Coefficient ◽  
Growth Pattern ◽  
Condition Factor ◽  
Allometric Growth ◽  
Weight Relationship ◽  
Highly Correlated ◽  
Relationship Of

The species of Liza tade were collected from Mawlamyine, Mon State, Myanmar during June 2018 to May 2019. The analysis of fishes was based on 1264 specimens ranging in size from 10 to 30cm and in weight from 15 to 190g. The length-weight relationship of L. tade was determined for males, females and combined sexes as W=0.016L2.82, W=0.016L2.84 and W=0.016L2.83 respectively. The samples have been found to be negative allometric growth pattern (b˂3). The results indicated that the value of correlation coefficient (r) for males, females and combined sexes were as 0.972, 0.975 and 0.973, which were closer to 1 indicating that the length-weight relationship was highly correlated. The condition factor (K) was recorded as 1.088 for males, 1.140 for females and 1.114 for all individuals respectively.

Length-weight relationship of Cirrhinus Cirrhosus inhabiting Indus River, Sindh-Pakistan

2021 ◽  
Vol 1 (1) ◽  
pp. 028-033
Author(s):  
Kashaf Malik ◽  
Sumeera Malik ◽  
Dilawer Bhambhro ◽  
Maryam Sheikh ◽  
Shehla Malik ◽  
...  
Keyword(s):  
Strong Correlation ◽  
Sustainable Management ◽  
Fishery Management ◽  
Condition Factor ◽  
Maximum Length ◽  
Indus River ◽  
Maximum Weight ◽  
Weight Relationship ◽  
River Indus ◽  
Relationship Of

The present work reports the length–weight relationships (LWR) and condition factor and of Cirrhinus cirrhosus inhabiting in River Indus, Sindh-Pakistan. The Length-weight relationship is an important tool for fishery management. A total of 340 specimens (individual) of length–weight were measured. A maximum length of the groups was observed 20.7cm and minimum as 9.4cm. The maximum weight was recorded about 84gm and minimum as 6gm. The estimated values of length-weight relationship and condition factor were calculated by formula LeCren (1951), as Kn=0.547, and Fulton as K=0.724. Length-weight was found with a strong correlation of n= 3.101, C=0.0176 with r2=0.894. The results of this work would be beneficial for sustainable management as well as fishery managers.

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