scholarly journals Bioecological aspect of lamasi (Barbonymus gonionotus) in mailil rever labuhanbatu district, indonesia

2021 ◽  
Vol 6 (1) ◽  
pp. 116-124
Author(s):  
Nur Asia Nasution ◽  
Rusdi Machrizal
Keyword(s):  
Gold Mining ◽  
Local Community ◽  
Condition Factor ◽  
Relative Weight ◽  
Biological Aspect ◽  
Relationship Analysis ◽  
Weight Relationship ◽  
Ecological Aspects ◽  
The Stability ◽  
Relationship Of

The existence of gold mining activities in mailil river can disrupt the stability of the ecosystem, fishing by using toxins, which may result in a decrease in fish populations in the river mailil. This study aims to obtain information related to biological and ecological aspects (Barbonymus gonionotus) in river Mailil, Village. This study was conducted from November 2020 to January 2021. The locations for sampling were determined based on information from the local community in Bandar Kumbul Village. Samples were caught using nets, traps, and nets Sampling was conducted from 09:00 am to 03:00 pm. The biological aspect being measured was the length-weight relationship of the fish using the linear allometric model (LAM). Meanwhile, the ecological aspect being measured was the condition factor using Fulton’s K equation and relative weight (Wr) equation. In this study, 54 silver barbs (B. gonionotus) were successfully caught as samples. The results of the length-weight relationship analysis indicated a negative allometric relationship with the value of b = 0.52 (b < 3). Furthermore, the value of Fulton’s K condition factor was 27.75, while the value of relative weight (Wr) condition factor was 100.07. These results indicated that river Mailil as an ecosystem and habitat of silver barbs is in the balance condition.Keywords: Length-weight relationship, Barbonymus gonionotus, aek mailil

scholarly journals Hubungan panjang-berat dan faktor kondisi julung-julung (Hemirhamphodon pogonognathus) di Aek Mailil Kabupaten Labuhanbatu Sumatera Utara Indonesia

2021 ◽  
Vol 10 (2) ◽  
pp. 171-180
Author(s):  
Sinta Nuria Munthe ◽  
Rusdi Machrizal
Keyword(s):  
Growth Pattern ◽  
Local Community ◽  
Condition Factor ◽  
Relative Weight ◽  
Weight Coefficient ◽  
B Value ◽  
Native Fish ◽  
Allometric Model ◽  
Relationship Of ◽  
The Relationship

Julung-julung (Hemirhamphodon pogonognathus) merupakan salah satu spesies ikan asli Indonesia. Aek Mailil merupakan salah satu habitat ikan julung-julug (H. pogonognathus) yang berada di Kabupaten Labuhanbatu. Penelitian bertujuan untuk mendapatkan hubungan panjang-berat dan faktor kondisi ikan julung-julung (H. pogonognathus) yang hidup di Aek Mailil. Pengambilan data dilakukan mulai November 2020 hingga Januari 2021 dengan alat tangkap durung. Titik sampling ditetapkan atas informasi dari masyarakat Desa Bandar Kumbul. Hubungan panjang-berat dihitung dengan Linear Allometrik Model (LAM), sedangkan faktor kondisi dihitung dengan rumus Fulton (K) dan berat relatif (Wr). Pola pertumbuhan ikan julung-julung (H. pogonognathus) mendapatkan hasil alometrik negatif dengan nilai b 2,9371 (b<3). Nilai koefisien Fulton (K) 2,57 dan koefisien berat relatif (Wr) 103,07. Hal ini menunjukkan bahwa pola pertumbuhan ikan julung-julung (H. pogonognathus) allometrik negatif dengan panjang tubuh lebih cepat dibandingkan berat tumbuh. Nilai (K) menunjukkan bahwa Aek Mailil masih dalam keadaan seimbang dan baik untuk mendukung kehidupan ikan julung-julung (H. pogonognathus). Kata kunci: faktor kondisi; Hemirhamphodon pogonognathus; pola pertumbuhan ABSTRACTLong-Weight relationship and condition factors of Julung-Julung (Hemirhamphodon pogonognathus) in Aek Mailil, Labuhanbatu Regency, North Sumatera, Indonesia. Hemirhamphodon pogonognathus is one of Indonesia's native fish species. Aek Mailil is one of the habitats for julung-julung (H. pogonognathus) in Labuhanbatu Regency. This study aimed to determine the relationship between length-weight and condition factors of julung-julung (H. pogonognathus) living in Aek Mailil. Sampling was carried out from November 2020 to January 2021 using durung fishing gear. The sampling points were determined based on information from the local community of Bandar Kumbul Village. The relationship of length-weight is calculated using the Linear Allometric Model (LAM), while the condition factor is calculated using the Fulton formula (K) and relative weight (Wr). The growth pattern of julung-julung (H. pogonognathus) got a negative allometric result with a b value of 2.9371 (b <3). The value of the Fulton coefficient (K) 2.57 and the relative weight coefficient (Wr) 103.07. This means that Aek Mailil's waters are in a balanced state and can support the (H. pogonognathus) live.Keywords: condition factor; Hemirhamphodon pogonognathus; growth pattern

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

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.

scholarly journals First data on habitat preference, diet and length-weight relationship of Gobius incognitus Kovačić & Šanda, 2016 (Pisces: Gobiidae)

2020 ◽  
Vol 61 (1) ◽  
pp. 67-78
Author(s):  
Francesco Tiralongo ◽  
Giuseppina Messina ◽  
Bianca Maria Lombardo
Keyword(s):  
Habitat Preference ◽  
Diet Analysis ◽  
Ionian Sea ◽  
Central Mediterranean ◽  
Species Identity ◽  
Weight Relationship ◽  
Important Prey ◽  
Ecological Aspects ◽  
The Mean ◽  
Relationship Of

In this work, we present first data on biological and ecological aspects of Gobius incognitus from specimens from the Ionian Sea (central Mediterranean Sea). In particular, we provided first data on habitat preference, diet and length-weight relationship of G. incognitus on material with confirmed species identity. The species preferred “mixed bottom” (sand and rocks), where it reached relatively high abundances. The diet analysis showed that G. incognitus is a generalist and opportunistic feeder. However, small benthic crustaceans were the most important prey group. The mean total length of specimens was 6.72 ± 1.85 cm and the growth was positive allometric.

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 Length-weight Relationship of Heterobranchus bidorsalis (Geoffroy st. Hilaire 1809) Diploid and Triploid Progenies raised under the same Environmental condition

2021 ◽  
Vol 38 (1) ◽  
pp. 160-166
Author(s):  
O. T. Agbebi ◽  
S. O. Otubusin ◽  
S. O. Olufeagba
Keyword(s):  
Regression Analysis ◽  
Condition Factor ◽  
Environmental Condition ◽  
Weight Relationship ◽  
Total Length ◽  
Relative Condition Factor ◽  
Adaptive Environment ◽  
Factor Evaluation ◽  
Relationship Of

Twenty specimens of triploid with weight and length ranging from 207-300g and 29-32cm; diploid 150-200g and 23-28cm Heterobranchus bidorsalis (Geoffroy St. Hilaire 1809) were subjected to morphometric and meristic characterization, length-weight relationship and condition factor evaluation. Triploid specimens had the higher values in all the parameters examined and were significantly different (P<0.005). Regression analysis of diploid and triploid show the ranges of values (K) of 0.802 1.453 and 0.838 0.906 respectively, for condition factor (k) while the relative condition factor values (Kn) ranged between 0.869 1.087 and 0.968 1.038 respectively. Weight increases directly as the total length increases for both diploid and triploid indicating isometric growth. The R2 in triploid was higher (96.8%) than in diploids (42.4%). In diploid progenies, the length by weight was significantly different (P<0.05) in triploid. Triploid progenies need no special adaptive environment or technique for rearing. Therefore, diploid and triploid progenies can be successfully cultured simultaneously under the same environmental condition.

scholarly journals Length-weight relationship, condition factor, and distribution of spotted barb (Barbodes binotatus Valenciennes, 1842) in Lake Tamblingan Bali

2021 ◽  
Vol 21 (2) ◽  
pp. 185-197
Author(s):  
Nyoman Dati Pertami ◽  
I Nyoman Yoga Parawangsa
Keyword(s):  
Aquatic Plants ◽  
Condition Factor ◽  
Mesh Size ◽  
Growth Patterns ◽  
Fish Sample ◽  
Allometric Growth ◽  
Volcanic Lake ◽  
Relationship Analysis ◽  
Weight Relationship ◽  
Endorheic Basin

Tamblingan Lake is a volcanic lake located in the caldera of  Mount Lesung a rain-fed lake in a confined endorheic basin and there is no inflow or outflow. Nyalian is a type of fish from the Cyprinidae family that is  quite common compared to other fish in its class in Tamblingan Lake. Information on the growth and distribution of these fish parameters in Tamblingan Lake does not exist. This study aims to analyze and explain the growth patterns of  Barbodes binotatus, especially the length-weight relationship, condition factor, and their distribution in the waters of  Tamblingan Lake. The research was conducted in Tamblingan Lake from January to June 2019 using a modify gill nets with the mesh size  0.5; 1.0; 1.5; 2.0; 2.5; 3.0 in centimeter. The sampling done in five locations. The length-weight relationship analysis used the power regression. The fish sample found was 204 individuals during the study with a range of total length was 5.2 – 15.0 cm. The equation of length-weight relationship is W = 0.0051 L3.387. The value of b formed based on this equation is 3.387 with a positive allometric growth pattern.The condition factor values ranged from 0.587 to 1.246. Barbodes binotatus spread in the litoral area where there are many aquatic plants. This information of nyalian fish could use as the basis for fish resource management in Tamblingan Lake.

scholarly journals Growing Pattern of Blue Swimming Crab, Portunus pelagicus at Two Different Locations in Manado Bay

2018 ◽  
Vol 6 (1) ◽  
pp. 149
Author(s):  
Frank Rijkaard Makahinda ◽  
Rose O.S.E Mantiri ◽  
Boyke H. Toloh
Keyword(s):  
Growth Pattern ◽  
Carapace Width ◽  
Market Demand ◽  
Swimming Crab ◽  
Chi Square ◽  
Portunus Pelagicus ◽  
Relationship Analysis ◽  
Weight Relationship ◽  
Relationship Of ◽  
Swimming Crabs

Portunus pelagicus (blue swimming crab) is one of the important economical marine commodities produced from Indonesian coastal waters that has increasing market demand among fishery commodities. The purpose of this research is to reveal the relationship of carapace width and weight, the growth pattern and the carapace width-weight ratio of P. pelagicus crabs at two different research sites in Manado Bay. The benefits of this study, can be a reference for further studies on blue swimming crabs, P. pelagicus, and information obtained in this study could become important information needed for the maximum sustainable utilization of blue swimming crab, P. pelagicus.This research was conducted at two locations, namely Kelurahan Bahu, Sub-district of Malalayang with coordinates of 1 ° 27'49.86 "North and 124 ° 49'35.79" East and second location in Tumumpa Dua, Sub-district of Tuminting with coordinates 1 ° 31'14.51"North - 124 ° 50'28.67"East. Samples of blue swimming crabs were collected by deploying traps which are placed at 5-7 meters with the distance between traps 10 meter. Traps were placed at 17.00 pm and lifted on the next day at 06.00 am. Measurement of the width of the carapace conducted by using the ruler with 0.1 cm accuracy and weight measurement using the scales with 0.1 gram accuracy.The correlation value obtained for the wide and weight relationship of blue swimming crabs in the Sub-district of Malalayang is 0.953 for males and 0.898 for females. In Kelurahan Tumumpa Dua, Sub-dis ittrict of Tuminting 0.829 for males and 0.920 for females respectively. Based on these values the increase in the width of the carapace will affect the weight gain of the crab. The growth pattern of P. pelagicus crab in Kelurahan Bahu, Sub-district of Malalayang and Tumumpa Dua Sub-district Tuminting showed negative allometric growth pattern with b <3 value which means faster carapace growth compared to the weight of crab. From the result of chi square test on wide body and weight relationship analysis, is found same for both locations with value x2 table = 7.815 <x2 count = 112.3134. This is presumably due to one of the external factors is the availability of food.Keywords: Rajungan, growth pattern, Manado Bay AbstrakPortunus pelagicus merupakan salah satu komoditi hasil laut ekonomis penting yang dihasilkan dari perairan pantai Indonesia dengan permintaan pasar terhadap komoditas rajungan yang terus meningkat. Adapun tujuan penelitian ini yaitu mengetahui hubungan lebar berat rajungan P. pelagicus, pola pertumbuhan rajungan P. pelagicus dan perbandingan lebar berat rajungan P. pelagicus di dua lokasi penelitian yang berbeda di Teluk Manado. Manfaat penelitian ini, dapat menjadi bahan acuan untuk studi lebih lanjut mengenai rajungan P. pelagicus serta infomasi yang didapat dalam penelitian ini bisa menjadi bahan kajian untuk pemanfaatan rajungan P. pelagicus secara maksimal serta berkelanjutan.Penelitian ini dilaksanakan pada dua lokasi yakni di Kelurahan Bahu Kecamatan Malalayang dengan koordinat 1°27'49.86"LU - 124°49'35.79"BT dan lokasi kedua di Kelurahan Tumumpa Dua Kecamatan Tuminting dengan koordinat 1°31'14.51"LU - 124°50'28.67"BT. Pengambilan sampel dilakukan dengan alat tangkap bubu yang diletakan pada kedalam 5-7 meter dengan jarak antara bubu 10 meter. Bubu diletakan pada pukul 17.00 wita dan diangkat pada esok harinya pukul 06.00 wita. Pengukuran lebar karapas menggunakan mistar dengan ketelitian 0,1 cm dan pengukuran berat tubuh menggunakan timbangan 0,1 gr.Nilai korelasi yang didapat untuk hubungan lebar berat rajungan P. pelagicus di Kelurahan Bahu Kecamatan Malalayang 0,953 untuk jantan dan 0,898 untuk betina. Di Kelurahan Tumumpa Dua Kecamatan Tuminting 0,829 untuk jantan dan 0,920 untuk betina. Berdasarkan nilai tersebut pertambahan lebar karapas akan berpengaruh pada kenaikan berat tubuh dari rajungan. Pola pertumbuhan rajungan P. pelagicus di Kelurahan Bahu Kecamatan Malalayang dan di Kelurahan Tumumpa Dua Kecamatan Tuminting menunjukan pola pertumbuhan yang bersifat allometrik negatif dengan nilai b < 3 yang berarti pertumbuhan karapas lebih cepat dibandingkan pertambahan berat rajungan. Dari hasil analisis chi square lebar berat tubuh, sama untuk kedua lokasi penelitian dengan nilai x2 tabel =  7,815 < x2 hitung = 112,3134. Hal ini diduga karena salah satu faktor eksternal yakni  ketersediaan makanan.Kata  kunci : Rajungan,  Pola pertumbuhan, Teluk Manado.

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.

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