scholarly journals Length-Weight Relationship and Gonad Maturity of Marble sleeper Oxyeleotris marmorata (Bleeker, 1852) in Tondano Lake North Sulawesi

2020 ◽  
Vol 11 (1) ◽  
pp. 23
Author(s):  
Ikky Ahdian Umage ◽  
Nego E. Bataragoa ◽  
Jety K. Rangan ◽  
Anneke V. Lohoo ◽  
Janny D. Kusen ◽  
...  
Keyword(s):  
Condition Factor ◽  
Growth Patterns ◽  
Mature Male ◽  
Allometric Growth ◽  
Female Fish ◽  
Male Fish ◽  
Gonad Maturity ◽  
Weight Relationship ◽  
North Sulawesi ◽  
Fish Samples

The purpose of this study was to determine the length-weight relationship and gonad maturity of Betutu fish (Oxyeleotris marmorata) in Lake Tondano. Fish samples were caught using gill nets and lift nets in Lake Tondano. Total catches of 240 individuals. The legth-weight relation of male fish is W = 0.0094 L3.14 positive allometric growth pattern. Female female fish obtained W = 0.0104 L3.11 positive allometric growth patterns. The condition factor for male fish is 1.46 male and 1.47 female respectively. All levels of gonad maturity (I, II, III, IV and V) were found in each sample both in August and September. The size of the first mature male male fish is 219 ± 3 mm (range in size 216-222 mm) and female fish 171 ± 3 (range in size 169-174 mm).Keywords: Length-Weight, gonad maturity, Tondano Lake ABSTRAKTujuan penelitian ini untuk mengetahui hubungan panjang-berat dan kematangan gonad ikan Betutu (Oxyeleotris marmorata) yang ada di danau Tondano. Sampel ikan  ditangkap menggunakan jaring insang dan jaring angkat di danau Tondano. Total hasil tangkapan  240 individu. Hubungan panjang-berat ikan betutu jantan yaitu W = 0,0094L3,1394 pola pertumbuhan allometrik positif. Ikan betutu betina didapatkan W = 0,0104L3,1137 pola pertumbuhan allometrik positif. Faktor kondisi ikan betutu jantan masing-masing sebesar  1,46 ikan jantan dan  1,47 ikan betina. Seluruh tingkat  kematangan gonad (I, II, III, IV dan V) ditemukan pada setiap sampel baik pada bulan agustus maupun bulan September.  Ukuran pertama kali matang ikan betutu jantan yaitu   219 ±3 mm (kisaran ukuran 216-222 mm) dan ikan betina  171±3  (kisaran ukuran 169-174 mm)Kata Kunci: Panjang-berat, kematangan gonad, Danau Tondano

scholarly journals LENGTH-WEIGHT RELATIONSHIP AND CONDITION FACTOR OF AFRICAN SNAKEHEAD PARACHANNA AFRICANA (STEINDACHNER, 1879) FROM IJEDE AND AGBOWA LAGOONS, LAGOS STATE, NIGERIA

2020 ◽  
Vol 9 ◽  
pp. 35
Author(s):  
Mistura Temitope Adeleke ◽  
Oladunni Nimota Adekunle ◽  
Olusegun Adebayo Lawal ◽  
Fayokunfe Mayowa Adeyemi
Keyword(s):  
Condition Factor ◽  
Well Being ◽  
Growth Patterns ◽  
Allometric Growth ◽  
B Values ◽  
Practical Applications ◽  
Weight Relationship ◽  
Fish Samples ◽  
Lagos State ◽  
The Mean

The knowledge of length-weight relationship parameters has numerous practical applications in fishery research and management. Currently, there is a dearth of information on the growth pattern and state of well-being of Parachanna africana in Ijede and Agbowa Lagoons. This study period was between December 2017, and June 2018 investigated the allometry and condition factor of P. africana inhabiting the Ijede and Agbowa Lagoons, South-western Nigeria. Two hundred fish samples of P. africana was gotten from fishermen at both locations. The length and weight measurements were taken to the nearest centimetres and grams. Descriptive, correlation and regression tools, was used to 2analyse the data collected. Results obtained showed that the length-weight relationship had r values of  0.186, 0.196, 0.191 and 0.341, 0.001, 0.098 for Ijede and Agbowa respectively, at a significant level of  P<0.05 for male, female and combined sexes. The b values of 0.193 for Ijede and 0.165 for Agbowa were not significantly different (P> 0.05). The mean condition factors of 0.365 ±0.141 and 0.329±0.169 were obtained in Ijede and Agbowa, respectively. It was observed that the species in both lagoons exhibited negative allometric growth patterns with values 0.365 and 0.330 for Ijede and Agbowa lagoons respectively with no variations in the condition factors of both locations which indicate the need to assess human and domestic activities surrounding these water bodies.

scholarly journals Length-weight relationship and condition factor of an endemic Lagusia micracanthus Bleeker, 1860 in Rivers of the Maros Watershed

2020 ◽  
Vol 20 (3) ◽  
pp. 263
Author(s):  
Muhammad Nur ◽  
M. Fadjar Rahardjo ◽  
Charles P.H Simanjuntak ◽  
Djumanto Djumanto ◽  
Krismono Krismono
Keyword(s):  
Condition Factor ◽  
Stage Iv ◽  
Maturity Stage ◽  
Allometric Growth ◽  
Spawning Period ◽  
Gonad Maturity ◽  
Weight Relationship ◽  
South Sulawesi ◽  
Fish Samples ◽  
Three Rivers

Lagusia micracanthus is one of endemic freshwater fish in Sulawesi. It also has been locally consumed. The purpose of this research was to analyze length-weight relationship and condition factors of L. micracanthus in rivers of the Maros Watershed, South Sulawesi Province . The study was conducted in three rivers, namely Pattunuang River, Bantimurung River and Pucak River. The sampling was conducted monthly from May 2018 to April 2019. Fish samples were collected by an electric shocker (12 V and 9 A). A total of 1850 individual fishes with samples ranging from 31.58-127.79 mm in total length and 0.76-31.07 g in weight. The length-weight relationship was W = 0.00009L2.6241 (r = 0.95) in Pattunuang River, W = 0.0001L2.5237 (r = 0.94) in Bantimurung River, and W = 0.0001L2.4953 (r = 0.92) in Pucak River. The slope (b) values of L. micracanthus obtained a negative allometric growth pattern (b <3). The relative condition factors of L. micracanthus was fluctuated from 0.86 to 1.43 in Pattunuang River, 0.65 to 1.45 in Bantimurung River, and 0.55 to 1.26 in Pucak River. The condition factor increased towards the peak of the spawning season and decreased after the spawning period. The condition factor increased with the increasing of gonad maturity stage up to stage IV and decreased after spawned or stage V.

scholarly journals Reproduction biology of Abe's flyingfish, Cheilopogon abei Parin, 1996 in Geser East Seram Strait Waters

2021 ◽  
Vol 21 (2) ◽  
pp. 167-184
Author(s):  
Friesland Tuapetel
Keyword(s):  
Fork Length ◽  
Biological Information ◽  
Female Fish ◽  
Male Fish ◽  
Gonad Maturity ◽  
Gill Net ◽  
Flying Fish ◽  
Reproduction Biology ◽  
Fish Samples ◽  
June July

Eco-biological information of Cheilopogon abei in Geser Streit is unknown. The objective of this research is to observe the sex ratio, first size maturity, gonad maturity and gonado somatic index (GSI) with fecundity of flying fish Ch abei in Geser East Seram Strait waters. Sampling was done for ten months started from February to November 2018, using gill net measuring 1.50 inch. All fish samples were measured in fork length and weighted so dissected to make observations on the level of gonad maturity and the number of eggs in female fish. A total of 682 flying fish was found during the study with a fork length range of 182.6-243.3 mm and a weight of 73.98-115.45 g. The results of the analysis showed that the proportion of the number of male fish was less than that of the female fish for almost every month of observation. The first size gonad mature of male and female is 210.5 mm and 214.1 mm FL. The gonad maturity index of male fish ranges from 0,963-7,967 and female fish ranges 1,315-8,069, the total fecundity is 2321-9438 eggs. Gonads of ripe fish in each month of observation. The spawning peak of Ch abei takes place in June-July and it is hoped that no arrests will be made in both months, to ensure the sustainability of the stock.

scholarly journals Aspek biologi reproduksi ikan pari blentik Neotrygon kuhlii di perairan Selat Sunda

2016 ◽  
Vol 15 (2) ◽  
pp. 189
Author(s):  
Salma Abubakar ◽  
Mennofatria Boer ◽  
, Sulistiono
Keyword(s):  
Condition Factor ◽  
Feeding Habit ◽  
Reproductive Characteristic ◽  
Female Fish ◽  
Male Fish ◽  
Gonad Maturity ◽  
Characteristic Condition ◽  
Intensive Fishing ◽  
Important Fish ◽  
Better Than

<p class="BasicParagraph"><strong>ABSTRACT</strong></p><p class="BasicParagraph"> </p><p class="BasicParagraph">Bluespotted stingray fish <em>Neotrygon kuhlii</em> is the important fish economically captured from Sunda Strait. Intensive fishing could decrease bluespotted stingray stock. This study was aimed to know the length-weight, and reproduction characteristic. The reproduction characteristic covered the size of first gonad maturity, the level and also index of gonad maturity of bluespotted stingray fish in Labuan Fishing Dock, Banten. The result showed the equilibrium of length-weight of female fish was about W=0.0007L2,1496. Meanwhile, the male fish was about W=0.0000L2.251. Male fish was better than female fish according their relatively condition factor. Decreasing of the factor condition was caused by feeding habit to grow the reproduction cells. The size of first gonad maturity for the female and male respectively were about 550–799 dan 550–760 mm. The highest level maturity even female or male was on IV achieved in June and Juli 2013. Increasing the index (IKG) was followed by the level of gonad maturity.</p><p class="BasicParagraph"> </p><p class="BasicParagraph">Kata kunci: bluespotted stingray, reproductive characteristic, condition factor, Sunda Strait<strong></strong></p><p class="BasicParagraph"><strong> </strong></p><p class="BasicParagraph"><strong> </strong></p><p class="BasicParagraph"><strong>ABSTRAK</strong></p><p class="BasicParagraph"><strong> </strong></p><p class="BasicParagraph">Ikan pari blentik <em>Neotrygon kuhlii</em> merupakan salah satu sumberdaya ikan ekonomis penting dan sebagai hasil penangkapan di Selat Sunda. Penangkapan yang intensif dapat mengakibatkan penurunan stok ikan pari blentik. Penelitian ini bertujuan untuk mengetahui panjang bobot, dan  karakteristik reproduksi. Karaktersitik reproduksi itu sendiri meliputi ukaran pertama kali matang gonad, tingkat kematangan gonad dan indeks kematangan gonad ikan pari blentik di perairan Selat Sunda yang didaratkan di Pelabuhan Perikanan Pantai (PPP) Labuan, Banten. Berdasarkan hubungan panjang bobot ikan pari betina diperoleh persamaan hubungan panjang dan bobot untuk ikan pari blentik betina W=0,0007L2,1496. Sementara itu pada ikan jantan, persamaan hubungan panjang bobot W=0,0000L2,251. Ikan pari blentik jantan mempunyai faktor kondisi yang relatif lebih besar daripada ikan pari betina. Penurunan nilai faktor kondisi disebabkan bagian terbesar dari makanan yang dikonsumsi digunakan untuk perkembangan sel-sel reproduksinya. Kisaran ukuran pertama kali matang gonad ikan pari blentik betina 550–799, sedangkan untuk ikan pari jantan adalah dengan kisaran panjang total tubuh 550–760 mm. Tingkat kematangan gonad tertinggi ikan betina dan jantan (TKG IV) ditemukan pada bulan Juni dan Juli 2013. Indeks kematangan gonad (IKG) ikan pari semakin meningkat seiring dengan meningkatnya TKG.</p><p class="BasicParagraph"><strong> </strong></p><p>Keywords: ikan pari blentik, karakteristik reproduksi, faktor kondisi, Selat Sunda</p>

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 Size, Length-Weight Relationship And Condition Factor Of Banggai Cardinal Fish, Pterapogon Kauderni Koumans, 1933 In Lembeh Strait North Sulawesi

2020 ◽  
Vol 8 (1) ◽  
pp. 30
Author(s):  
Rully Lempoy ◽  
Ari B. Rondonuwu ◽  
Nego E. Bataragoa
Keyword(s):  
Size Distribution ◽  
Size Class ◽  
Male Fish ◽  
Weight Relationship ◽  
North Sulawesi ◽  
Lembeh Strait ◽  
Fish Samples ◽  
Total Fish ◽  
Relationship Of ◽  
The Relationship

This study aims to determine the size distribution and the relationship between length and weight and condition factors of Banggai Cardinalfish (Pterapogon kauderni) in the Lembeh Strait. Fish samples were obtained by using Chang Net in the Lembeh Strait. Total fish caught were 150 individuals from three sites namely Serena Besar Island, the waters in front of LIPI and the waters in front of Papusungan village with 50 fish each. The size distribution of Pterapogon kauderni fish ranges from 4.13 - 8.92 cm and dominated by the size class of 7.13 - 7.72 cm while the size class of 4.13 - 4.72 cm only contains 3 individuals. The length-weight relationship of male fish is W = 0.0285 L2.6496 (n = 77; R2 = 0.7231), and female fish W = 0.837 L2.0723 (n = 73; R2 = 0.6626).  The growth pattern analysis shows a negative allometric pattern both for males and females while the condition factors of male fish are 1.020 ± 0.202 and female 1.027 ± 0.236.Keywords: Kauderni pterapogon, distribution size, length-weight relationship, condition factorAbstrakPenelitian ini bertujuan untuk mengetahui distribusi ukuran dan hubungan panjang berat serta faktor kondisi ikan Capungan Banggai (Pterapogon kauderni) yang ada di Selat Lembeh. Sampel ikan diperoleh dengan cara ditangkap menggunakan Chang Net di Selat Lembeh. Total hasil tangkapan adalah 150 individu masing-masing 50 di Pulau Serena Besar, Perairan depan LIPI dan Perairan depan desa Papusungan. Sebaran ukuran ikan Pterapogon kauderni berkisar antara 4,13 – 8,92 cm dan didominasi oleh kelas ukuran 7,13 – 7,72 cm sedangkan kelas ukuran 4,13 – 4,72 cm hanya terdapat 3 individu. Hubungan panjang-berat ikan jantan adalah W = 0,0285L2,6496 & (n = 77 ; R2 = 0,7231), ikan betina W = 0,837L2,0723 (n = 73 ; R2 = 0,6626). Analisis pola pertumbuhan menunjukan pola pertumbuhan allometrik negatif  baik jantan maupun betina. sedangkan Faktor kondisi ikan jantan 1,020 ± 0,202 dan betina 1,027 ± 0,236.Kata kunci: Pterapogon kauderni, sebaran ukuran, panjang berat, faktor kondisi

scholarly journals Biological Aspects of Waanders’s Hard-lipped Barbs (Osteochilus waandersii) in Tambatan River, North Sumatera, Indonesia

BIOEDUSCIENCE ◽  
2021 ◽  
Vol 5 (2) ◽  
Author(s):  
Siti Jurniah Nasution ◽  
Rivo Hasper Dimenta
Keyword(s):  
Sampling Method ◽  
Growth Patterns ◽  
Maturity Stage ◽  
Maturity Level ◽  
Female Fish ◽  
Male Fish ◽  
Gonad Maturity ◽  
The Family ◽  
Biological Aspects

Background: Waanders’s hard-lipped barbs or scientifically known as Osteochilus waandersii belong to the family Cyprinidae with the potamodromous category. This fish can be found in the Tambatan river. It has the potential for commercial consumption or ornamental fish. Methods: This study was conducted in the Tambatan river from November to January 2021. The determination of three research stations was carried out using a purposive sampling method. Sampling was undertaken using cast nets. Furthermore, data analyzed were growth patterns, condition factors, and gonad maturity levels. Results: The growth patterns of male (1.944) and female (2.379) Osteochilus waandersii were in a negative allometric category. Besides, The Fulton's condition factor for male fish ranged from 0.42 - 3.43 with an average of 1.05, while that for female fish ranged from 0.59 - 3.67 with an average of 1.47. The result of the observation on the gonad maturity level for male and female O. waandersii in the Tambatan river indicated that they were dominated by fish with gonad maturity stage I (immature). Conclusions: Waanders’s hard-lipped barbs O. waandersii found were in the stage towards the mature level.

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 The length-weight relationships and condition factor of an endemic Marosatherina ladigesi Ahl, 1936 in Walanae Cenranae River Watershed, South Sulawesi, Indonesia

2021 ◽  
Vol 322 ◽  
pp. 01002
Author(s):  
Adiara Firdhita Alam Nasyrah ◽  
Muhammad F. Rahardjo ◽  
Charles P. H. Simanjuntak ◽  
Muhammad Nur
Keyword(s):  
Condition Factor ◽  
Ornamental Fish ◽  
Growth Patterns ◽  
Biological Information ◽  
Female Fish ◽  
Male And Female ◽  
River Watershed ◽  
South Sulawesi ◽  
Fish Samples ◽  
Relationship Of

Marosatherina ladigesi is an endemic fish species in South Sulawesi and is famous as ornamental fish. However, the biological information of this species is still restricted. This research direct analyzes the length-weight relationships and condition factors of M. ladigesi. Sampling was held monthly from May 2018 to April 2019 in the Walanae Cenranae River Watershed, South Sulawesi. Fish samples were assembled by seine net. A total of 550 M. ladigesi were collected consisted of 227 fish in Camba River, 88 fish in Sanrego River, and 235 fish in Batu Puteh River. The length-weight relationship of male and female fish was W = 0,0002L2,74 and W = 0,00004L3,23 in Camba River, W = 0,0001L2,78 and W = 0,0001L2,92 in Sanrego River, W = 0,0001L2,88 and W = 0,00006L3,12 in Batu Puteh River, respectively. In Camba and Batu Puteh Rivers, the growth pattern of male and female fish were negative allometric and positive allometric, respectively. Conversely, the growth patterns of male and female fish in the Sanrego River were isometric. The condition factor fish in Sanrego River was lower than Camba and Batu Puteh River. These findings are valuable data for establishing a monitoring and conservation of this endemic species in its habitat.

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. 

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