scholarly journals Length-weight Relationship, Growth Pattern and Condition Factor of the Silver Catfish Chrysichthys nigrodigitatus (Lacepède, 1803) from Lower River Benue, Nigeria

2018 ◽  
pp. 1-8
Author(s):  
Edem, Edem Thomas ◽  
Ofunama, Preye ◽  
Eyo, Victor `Oscar
Keyword(s):  
Population Dynamics ◽  
Growth Pattern ◽  
Sustainable Management ◽  
Condition Factor ◽  
B Value ◽  
Health Condition ◽  
Artisanal Fisheries ◽  
Allometric Growth ◽  
Silver Catfish ◽  
Weight Relationship

This study was carried out to evaluate the length-weight relationship, growth pattern and condition factor of the Silver catfish Chrysichthys nigrodigitatus from the Lower River Benue Makurdi, Nigeria. A total of 200 freshly caught specimens of C. nigrodigitatus were collected between July 2013 and September 2013 from the catches of the artisanal fisheries at landing points in Wadata Market, Makurdi. Results obtained showed that the “b” value for the males was 1.6067 while that of the females was 1.6791 and combined sexes 1.7371, indicating a negative allometric growth for this species. Correlation coefficient (r) obtained for males (0.9651), 0.9517 (females) and 0.9329 (pooled sexes) showed a positive significant relationship between length and weight of C. nigrodigitatus. Monthly mean condition factor (K), indicate that C. nigrodigitatus were in good physiological health condition. In conclusion, the baseline data on the length-weight relationship, condition factor of C. nigrodigitatus from the lower River Benue provided in this study is crucial in the sustainable management of this species in the River. Also, these findings will be useful in evaluating the population dynamics, stock and the aquaculture potential of C. nigrodigitatus for future purpose.

scholarly journals Length-weight Relationship and Condition Factor of Blackspot Catfish Auchenoglanis biscutatus from the Lower River Benue Makurdi, Nigeria

2018 ◽  
pp. 1-7
Author(s):  
Edem, Edem Thomas ◽  
Eyo, Victor Oscar ◽  
Ofunama Preye
Keyword(s):  
Correlation Coefficient ◽  
Sustainable Management ◽  
Condition Factor ◽  
Good Health ◽  
B Value ◽  
Health Condition ◽  
Artisanal Fisheries ◽  
Allometric Growth ◽  
Weight Relationship ◽  
Good Health Condition

This study was carried out to evaluate the length-weight relationship and condition factor of the Blackspot Catfish Auchenoglanis biscutatus from the Lower River Benue Makurdi, Nigeria. A total of 200 freshly caught specimens of A. biscutatus were collected from the catches of the artisanal fisheries from landing points at Wadata Market in Makurdi, between July and September 2013. The result obtained showed that the “b” value for the males was 1.6698, females (1.6201) and combined sexes (1.7318) indicating a negative allometric growth. Correlation coefficient (r) for males was 0.9524, females (0.9290) and combine sexes (0.9085). Monthly mean condition factor (K), indicated that both sexes of A. biscutatus were in good health condition. It is therefore concluded that findings of this study will be useful in the sustainable management of this species in the lower River Benue.

scholarly journals Length-Weight Relationship and Condition Factor of Layang Fish (Decapterus russelli) Landed at Tenda Fish Landing Base, Gorontalo

2021 ◽  
Vol 5 (1) ◽  
pp. 44-50
Author(s):  
Frismarwati Wahyuni Lawadjo ◽  
Munirah Tuli ◽  
Nuralim Pasisingi
Keyword(s):  
Growth Pattern ◽  
Random Sampling ◽  
Sampling Method ◽  
Condition Factor ◽  
Simple Random Sampling ◽  
Allometric Growth ◽  
Male And Female ◽  
Weight Relationship ◽  
Flying Fish

The study aims to figure out growth pattern and condition factor of the flying fish (Decapterus russelli) landed at the Fish Landing Base Tenda, Hulonthalangi District, Gorontalo City. Sampling of 360 layang fish was carried out randomly based on a simple random sampling method for three months. Determination of fish sex was conducted visually by dissecting samples and observing the gonads. The study showed that the layang fish (D. russelli) landed in PPI Tenda had a positive allometric growth pattern with condition factor values ranging from 1.005 to 1.014 and 1.002 to 1.620 for male and female, respectively

Length-weight relationship of a newly described catfish Pangasius silasi Dwivedi et al., 2017 from Nagarjuna Sagar Dam, Telengana, India

2020 ◽  
Vol 67 (2) ◽  
Author(s):  
T. T. Ajith Kumar ◽  
Santosh Kumar ◽  
Kuldeep K. Lal
Keyword(s):  
Sustainable Management ◽  
Natural Waters ◽  
Condition Factor ◽  
Regression Coefficient ◽  
Allometric Growth ◽  
Weight Relationship ◽  
Average Condition ◽  
Males And Females ◽  
Relationship Of ◽  
Management And Conservation

The length-weight relationship of a newly described catfish Pangasius silasi Dwivedi et. al., 2017 was studied from 88 specimens collected from the native distribution range of the species i.e. Nagarjuna Sagar Dam, Telengana, India. The total length and weight of the sampled fishes ranged from 290 to -590 mm and 240 to 2300 g respectively. Results of regression analysis showed that the regression coefficient (r²) values varied from 0.985 to 0.989. The average condition factor observed was 1.04 and 0.98 for males and females respectively. Positive allometric growth and condition factor of the species indicated the potential of the species for aquaculture. The information generated will also be useful in sustainable management and conservation of the species in natural waters.

scholarly journals Length-weight Relationship, Condition Factor and Feeding Habits of Synodontis clarias (Linnaeus, 1758) in the Lower River Benue at Makurdi, Nigeria

2015 ◽  
Vol 6 ◽  
pp. 59-67
Author(s):  
P M Akombo ◽  
E T Akange ◽  
B O Amali ◽  
J N Shima
Keyword(s):  
Growth Pattern ◽  
Condition Factor ◽  
Size Range ◽  
Regression Coefficient ◽  
Feeding Habits ◽  
Allometric Growth ◽  
Food Items ◽  
Weight Relationship ◽  
Wide Range ◽  
The Mean

The Length-Weight Relationship (LWR), Condition factor (K) and feeding habits of Synodontis clarias (Linnaeus, 1758) were investigated over a 24 month period from January, 2009 - December, 2010. A total number of 163 specimens comprising of 74 females and 89 males with the size range of 7.60 – 20.00cm and the mean of 12.72± 0.258cm were investigated. The weight ranged from 13.12 – 607.30g with the mean of 65.83± 0.897g. The LWRs for the females, males and combined sexes had the r values of 0. 8415, 0.9463 and 0.8703 respectively. The mean condition factor K was 3.3667, 2.6868 and 2.9954 for the females, males and combined sexes respectively. The regression coefficient b was 1.9408, 1.8799 and 2.1359 for the females, males and combined sexes respectively indicating negative allometric growth pattern for the species. Out of the 163 stomachs examined for food items, 88 (53.99%) were empty while 75 (46.01%) contained a wide range and varying quantities of food items indicating that S.clarias in River Benue is omnivorous.

scholarly journals Length-weight Relationship and Condition Factor of Auchenoglanis biscutatus in Kiri Reservoir, Adamawa State, Nigeria

2020 ◽  
pp. 23-29
Author(s):  
H. S. Kiman ◽  
A. Ja'afaru
Keyword(s):  
Growth Pattern ◽  
Physiological Condition ◽  
Condition Factor ◽  
The State ◽  
Allometric Growth ◽  
B Values ◽  
Weight Relationship ◽  
Regression Exponent

Length-weight relationship and condition factor of Auchenoglanis biscutatus obtained from Kiri Reservoir Adamawa State, Nigeria from July to December 2014 were studied. The objective of this study was to determine the state of physiological wellbeing of the fish in the reservoir. A total of 60 Auchenoglanis biscutatus were collected from fishermen catch and transported to the laboratory for analysis. Identification of fish was done using the Babatunde and Raji method. Length-Weight relationship and condition factor were calculated using the Froeze method. The results of the length - weight analyses showed that the entire fish exhibited a negative allometric growth pattern with regression exponent b values less than 3. The analyses showed that the condition factor of Auchenoglanis biscutatus were greater than 1 and implied that they were in good physiological condition.

scholarly journals Study of some biological aspects of the Nile Carp, Labeo niloticus (Pisces, Cyprinidae) from Khashm El-Girba Reservoir and Atbara River; Eastern Sudan: II, length-weight relationship, condition factor and age structure

2021 ◽  
Vol 3 (2) ◽  
pp. 7-14
Author(s):  
Mutasim Yousif Mohamed Abdalla ◽  
◽  
Abuelgasim Ibrahim Abdelhalim ◽  
Ahmed El Bedawi Adam ◽  
◽  
...  
Keyword(s):  
Age Structure ◽  
Growth Pattern ◽  
Condition Factor ◽  
Allometric Growth ◽  
Beach Seine ◽  
Weight Relationship ◽  
Biological Aspects ◽  
The Mean ◽  
The Relationship ◽  
Eastern Sudan

This study was undertaken to assess the length-weight relationship, condition factor and age structure, of the Nile carp, Labeo niloticus, in Khashm El-Girba reservoir and Atbara River, Sudan, from December 2015 to November 2016. Samples of fish were collected bi-monthly from three locations, namely; Um Aswad (Atbara River), El-Remila and El-Monaba (Khashm El-Girba reservoir), using beach seine nets of 1.2, 4.0 and 7.0 cm stretched mesh. Out of a total number of 1,190 specimens of L. niloticus collected from the three sampling sites, 189 specimens were randomly selected to determine age. The relationship between length and weight indicated negative allometric growth pattern in all three locations, where the slope (b) of the (LWR) was highly significant (p<0.001) and ranged from 2.178 to 2.885. The mean condition factor (K) varied monthly in the three locations with values ranging from 1.671 in Um Aswad (Atbara River) to 2.548 in El-Monaba (reservoir). Although the age of L. niloticus ranged from 0+ and 3+ years, yet, most of the studied fish are between age 0 + and 1+.

scholarly journals Variasi Morfometrik, Hubungan Panjang Bobot dan Faktor Kondisi Ikan Famili Holocentridae yang Didaratkan di Pelabuhan Perikanan Samudra (PPS) Lampulo, Banda Aceh

2021 ◽  
Vol 24 (1) ◽  
pp. 81-92
Author(s):  
Ilham Zulfahmi ◽  
Dwi Yuliandhani ◽  
Arif Sardi ◽  
Neri Kautsari ◽  
Yusrizal Akmal
Keyword(s):  
Frequency Distribution ◽  
Growth Pattern ◽  
Condition Factor ◽  
Allometric Growth ◽  
Morphometric Variation ◽  
Resources Management ◽  
Weight Relationship ◽  
Fish Samples ◽  
Management And Conservation ◽  
Banda Aceh

Understanding of morphometric variation, length-weight relationship, and condition factors needed to support fishery resources management and conservation. Therefore, this study aimed to determine the morphometric variation, length-weight relationship, and condition factors of the Holocentridae family landed at the Lampulo Ocean Fishing Port, Banda Aceh. A total of 50 each of the four species of fish (Myripristis berndty, Myripristis murdjan, Sargocentron tieroides and Sargocentron caudimacullatum) were collected during April 2020. Fish samples were obtained from the catch of fishermen who landed at the Lampulo Ocean Fishing Port, Banda Aceh. The parameters analyzed included morphometric variations (12 characters), length and weight frequency distribution, length-weight relationship and condition factors. The results showed that the genus Myripristis had more distinguishing characters than the genus Sargocentron, namely 50.00% and 16.66%, respectively. Myripristis berndty and Myripristis murdjan have 5 distinguishing characters (SL, HL, CPL, HD, PFL and VFL), while Sargocentron tieroides and Sargocentron caudimacullatum only have 2 distinguishing characters (SnL and PFL). The Myripristis genus that were collected tended to more length and heavier compared to the genus Sargocentron. The four spesies of Holocentridae studied had a negative allometric growth pattern (b<3) with condition factor values ranging from 0.787 to 1.417.Pemahaman terkait variasi morfometrik, hubungan panjang bobot dan faktor kondisi sangat diperlukan dalam rangka pengelolaan dan konservasi sumberdaya perikanan. Oleh karenanya, penelitian ini bertujuan untuk mengetahui variasi morfometrik, hubungan panjang bobot serta faktor kondisi dari ikan Famili Holocentridae yang didaratkan di Pelabuhan Perikanan Samudera (PPS) Lampulo, Banda Aceh. Sebanyak masing-masing 50 ekor dari empat jenis ikan (Myripristis berndty, Myripristis murdjan, Sargocentron tieroides dan Sargocentron caudimacullatum) dikoleksi selama bulan April 2020. Sampel ikan diperoleh dari hasil tangkapan nelayan yang didaratkan di Pelabuhan Perikanan Samudera (PPS) Lampulo, Banda Aceh. Parameter yang analisis meliputi variasi morfometrik (12 karakter), selang kelas, hubungan panjang bobot dan faktor kondisi. Hasil penelitian menunjukkan bahwa genus Myripristis memiliki karakter pembeda yang lebih banyak dibandingkan dengan genus Sargocentron yaitu masing masing sebesar 50.00% dan 16.66%. Myripristis berndty dan Myripristis murdjan memiliki 5 karakter pembeda (SL,HL, CPL, HD, PFL dan VFL), sedangkan Sargocentron tieroides dan Sargocentron caudimacullatum hanya memiliki 2 karakter pembeda (SnL dan PFL). Genus Myripristis yang dikoleksi cenderung memiliki ukuran panjang total dan bobot total yang lebih rendah dibandingkan dengan genus Sargocentron.  Keempat jenis yang diteliti dalam penelitian ini memiliki pola pertumbuhan alometrik negatif (b<3) dengan nilai faktor kondisi berkisar antara 0.787 hingga 1.417

scholarly journals Growth Pattern and Morphological Variation of Labeo calbasu Found in Indus River, Sindh-Pakistan

2019 ◽  
Vol 1 (2) ◽  
Author(s):  
Sumeera Malik ◽  
Ayaz Hussain Qadri ◽  
M. Y. Laghari ◽  
P. K. Lashari ◽  
A. R. Khuharo ◽  
...  
Keyword(s):  
Growth Pattern ◽  
Sustainable Management ◽  
Fishery Management ◽  
Condition Factor ◽  
Stock Assessment ◽  
Morphological Characters ◽  
Allometric Growth ◽  
Indus River ◽  
Commercially Important ◽  
River Indus

The present work reports the length–weight relationships (LWR) and condition factor relationships for Labeo calbasu collected from Upstream (Matyari) Kotri barrage at, River Indus, Pakistan, because stock assessment helps the fisheries managers to conserve the commercially important fish. Morphological characters of fish as well as Length-weight relationship are an important tool for fishery management. The results of LWR (W= aLb), for L calbasu.  Representing negative allometric growth pattern. LWRs and condition factor relationships were found significantly correlated. A total of 200 and 190 specimens from upstream and downstream were collected, respectively. The assessed values of length-weight correlation and condition factor were calculated as Kn=39.663 (LeCren), and K=11.915 (Fulton) for upstream and Kn=44.066 and K=13.872 for downstream. Length-weight was found with a strong correlation of n= 2.892, a=0.0235 with r2=0.934 for upstream population then the downstream population.  The results of this work would be beneficial for sustainable management as well as fishery managers.  

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.

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