scholarly journals Weight-Length and Condition Factor of Snakehead Fish Channa striata (Bloch, 1793) from Tondano Lake North Sulawesi

2019 ◽  
Vol 10 (1) ◽  
pp. 6
Author(s):  
Musa Amanpokptis ◽  
John L. Tombokan ◽  
Nego Elvis Bataragoa ◽  
Fransine B. Manginsela
Keyword(s):  
Growth Pattern ◽  
Condition Factor ◽  
Marine Science ◽  
Data Recording ◽  
North Sulawesi ◽  
Relative Condition Factor ◽  
Length Relationship ◽  
Fish Weight ◽  
Channa Striata

Sampling was done in two places, Tolour village and Kaweng village. Samples were taken from fishermen in July and August 2018. Total samples collected were 35 individuals, 20 indivduals from Tolour and 15 from Kaweng. Furthermore, the fish were brought the Faculty of Fisheries and Marine Science, and data recording was in the Freshwater Bioecology Laboratory. They consisted of 16 males and 19 females. Male length ranged from 25.8 to 43.2 cm, and female from 22.0 to 39.6 cm. The weight of males ranged from 157-755 g and female between 38-422g.Weight-length relationship in this study was W = 0.0017L3.4517 for sex combination, W = 0.0116L2.9161 for males and W = 0.0009L3,6426 for females. The growth pattern for combied sex was isometric (b = 3.457). The growth pattern was isometric (b = 2.9161) for male and allometric positive (b = 3.6426) for females. The relative condition factor (Kn) of all individuals was 1.06 ± 0.44, 1.01 ± 0.13 for males and 1.01 ± 0.58 for femaleKey Words: Tondano Lake, Snakehead Fish, Weight-length, condition factor ABSTRAKPengambilan sampel dilakukan di dua tempat yaitu, Kelurahan Tolour Kecamatan Tondano Timur dan Desa Kaweng Kecamatan  Kakas. Sampel diambil dari hasil tangkapan nelayan pada Bulan Juli dan  Agustus 2018. Sampel yang terkumpul  sebanyak 35 ekor, 20 sampel dari Tolour dan 15 dari Kaweng. Selanjutnya ikan dibawah ke Laboraturium Bioekologi Air Tawar  FPIK untuk pengambilan data. Sampel yang digunakan sebanyak 35 individu yang terdiri atas jenis kelamin jantan 16 individu dan betina 19 individu. Ukuran panjang ikan jantan berkisar antara 25,8-43,2 cm, dan ikan betina berkisar antara 22,0-39,6 cm.  Ukuran berat ikan jantan berkisar antara 157-755 g dan ikan betina beratnya berkisar antara 38-422g. Hubungan panjang berat ikan gabus dalam penelitian ini adalah W= 0,0017L3,4517 untuk gabungan jantan betina, W = 0,0116L2,9161 untuk jenis kelamin jantan  dan W = 0,0009L3,6426 untuk jenis kelamin betina.  Pola pertumbuhan untuk gabungan jantan dan betina adalah isometric (b=3,457).  Pola pertumbuhan ikan gabus adalah pola pertumbuhan isometrik (b=2,9161)   untuk jantan dan allometrik positif (b=3,6426) untuk jenis kelamin betina. Faktor kondisi relative (Kn) seluruh individu adalah 1,06  ± 0,44. Faktor Kondisi  jantan adalah 1,01 ± 0,13. Jenis kelamin betina faktor kondisi adalah 1,01 ± 0,58.Kata kunci: Tondano, ikan gabus, berat-panjag, factor kondisi

scholarly journals Weight-Length and Condition Factor of Snakehead Fish Channa striata (Bloch, 1793) from Tondano Lake North Sulawesi

2019 ◽  
Vol 10 (1) ◽  
pp. 6
Author(s):  
Musa Amanpokptis ◽  
John L. Tombokan ◽  
Nego E. Bataragoa ◽  
Fransine B. Manginsela
Keyword(s):  
Growth Pattern ◽  
Condition Factor ◽  
Marine Science ◽  
Data Recording ◽  
North Sulawesi ◽  
Relative Condition Factor ◽  
Length Relationship ◽  
Fish Weight ◽  
Channa Striata

Sampling was done in two places, Tolour village and Kaweng village. Samples were taken from fishermen in July and August 2018. Total samples collected were 35 individuals, 20 indivduals from Tolour and 15 from Kaweng. Furthermore, the fish were brought the Faculty of Fisheries and Marine Science, and data recording was in the Freshwater Bioecology Laboratory. They consisted of 16 males and 19 females. Male length ranged from 25.8 to 43.2 cm, and female from 22.0 to 39.6 cm. The weight of males ranged from 157-755 g and female between 38-422g.Weight-length relationship in this study was W = 0.0017L3.4517 for sex combination, W = 0.0116L2.9161 for males and W = 0.0009L3,6426 for females. The growth pattern for combied sex was isometric (b = 3.457). The growth pattern was isometric (b = 2.9161) for male and allometric positive (b = 3.6426) for females. The relative condition factor (Kn) of all individuals was 1.06 ± 0.44, 1.01 ± 0.13 for males and 1.01 ± 0.58 for femaleKey Words: Tondano Lake, Snakehead Fish, Weight-length, condition factor ABSTRAKPengambilan sampel dilakukan di dua tempat yaitu, Kelurahan Tolour Kecamatan Tondano Timur dan Desa Kaweng Kecamatan  Kakas. Sampel diambil dari hasil tangkapan nelayan pada Bulan Juli dan  Agustus 2018. Sampel yang terkumpul  sebanyak 35 ekor, 20 sampel dari Tolour dan 15 dari Kaweng. Selanjutnya ikan dibawah ke Laboraturium Bioekologi Air Tawar  FPIK untuk pengambilan data. Sampel yang digunakan sebanyak 35 individu yang terdiri atas jenis kelamin jantan 16 individu dan betina 19 individu. Ukuran panjang ikan jantan berkisar antara 25,8-43,2 cm, dan ikan betina berkisar antara 22,0-39,6 cm.  Ukuran berat ikan jantan berkisar antara 157-755 g dan ikan betina beratnya berkisar antara 38-422g. Hubungan panjang berat ikan gabus dalam penelitian ini adalah W= 0,0017L3,4517 untuk gabungan jantan betina, W = 0,0116L2,9161 untuk jenis kelamin jantan  dan W = 0,0009L3,6426 untuk jenis kelamin betina.  Pola pertumbuhan untuk gabungan jantan dan betina adalah isometric (b=3,457).  Pola pertumbuhan ikan gabus adalah pola pertumbuhan isometrik (b=2,9161)   untuk jantan dan allometrik positif (b=3,6426) untuk jenis kelamin betina. Faktor kondisi relative (Kn) seluruh individu adalah 1,06  ± 0,44. Faktor Kondisi  jantan adalah 1,01 ± 0,13. Jenis kelamin betina faktor kondisi adalah 1,01 ± 0,58.Kata kunci: Tondano, ikan gabus, berat-panjag, factor kondisi

scholarly journals Length-weight relationship and condition factor of tropical sand goby, Acentrogobius caninus (Valenciennes 1837) from Pabean Bay, West Java, Indonesia

2021 ◽  
Vol 322 ◽  
pp. 01021
Author(s):  
Lenny S. Syafei
Keyword(s):  
Growth Pattern ◽  
Condition Factor ◽  
Sand Goby ◽  
West Java ◽  
Weight Relationship ◽  
Relative Condition Factor

This study aims to determine the length-weight relationship (LWR) and evaluate the condition factors of the tropical sand goby, Acentrogobius caninus (Valenciennes 1837), in Pabean Bay West Java, Indonesia. The sampling was carried out once a month from January to December 2015, and during that period, 152 samples were collected. The LWR is W = 9 x 10-6 L-3.0356. The growth pattern of tropical sand goby is isometric (b=3). The monthly relative condition factor ranged from 0.798 to 1.322 (average: 1.028).

scholarly journals DISTRIBUSI UKURAN IKAN TERI (Stolephorus sp) YANG DITANGKAP PADA PERIKANAN BAGAN TANCAP DI MUARA SUNGSANG SUMATERA SELATAN (Size Distribution of Anchovy (Stolephorus sp.) Caught in Stationary Liftnets at Sungsang Estuary South Sumatera)

2016 ◽  
Vol 7 (2) ◽  
pp. 161
Author(s):  
. Fauziyah ◽  
. Hadi ◽  
Khairul Saleh ◽  
Freddy Supriyadi
Keyword(s):  
Frequency Distribution ◽  
Growth Pattern ◽  
Growth Form ◽  
Condition Factor ◽  
Size Structure ◽  
Length Frequency Distribution ◽  
Fishing Pressure ◽  
Length Frequency ◽  
Relative Condition Factor ◽  
Factor Frequency

<p><strong>ABSTRACT<br /> </strong><br />The anchovy  (Stolephorus sp.)  in  Muara  Sungsang  estuary South Sumatera  are  generally caught by stationary liftnet. Morphometric studies are essential to determine the growth form and growth rate of species, which is  very much important for proper  utilization  and management of the population of the species. This study aimed to determine the size structure and growth pattern of the  anchovy  caught  by  stationary  liftnet.  The   size  structure,  length -weight  relationship  and  the condition factor  of  anchovy were computed.  The anchovy samples were taken  in July 2013 (750 samples) and September 2013 (1950 samples).    Results  showed  that the population of anchovy was  dominated by length frequency distribution  of  65 mm during study on July 2013 and 75 mm during  study  on  September  2013.  Both  populations  were  dominated  by  weight  frequency distribution 2 gram.  The anchovy that caught on September 2013 were more allowable catch than on July 2013. The growth pattern of anchovy was negative allometric. The relative condition factor (Kn)  value  in  September  2013  was  higher  than  in  July  2013.  It  indicated  that  the  environmental conditions  at  Muara  Sungsang  estuary  are  suitable  for  growth  of  anchovy’s  and  still  safe  from fishing pressure.</p><p>Keywords: allometric, anchovy, condition factor, frequency distribution</p><p> <strong><br />ABSTRAK</strong></p><p>Ikan  Teri  (Stolephorus  sp.)  di  Muara  Sungsang  Sumatera  Selatan  umumnya  ditangkap menggunakan bagan tancap. Studi morfometrik berguna untuk menentukan bentuk pertumbuhan dan laju pertumbuhan spesies. Hal ini berguna untuk manajemen populasi dan sebagai informasi tentang stok atau kondisi organisme. Disamping itu, sebagai dasar dalam upaya pengelolaan dan pemanfaatan  ikan  teri  di  masa  akan  datang.  Penelitian  ini  bertujuan  untuk  mengetahui  struktur ukuran dan pola pertumbuhan ikan teri hasil tangkapan bagan tancap. Data ikan teri didapatkan pada  bulan  Juli  2013  (750  sampel)  dan  September  2013  (1950  sampel).  Hasil  penelitian menunjukkan bahwa populasi ikan teri didominasi oleh distribusi frekuensi panjang 65 mm pada bulan Juli 2013 dan 75 mm pada bulan September 2013. Distribusi frekuensi berat teri pada kedua bulan tersebut sama yaitu 2 gram. Penangkapan ikan teri pada bulan September 2013 lebih layak tangkap  dibandingkan  pada  bulan  Juli  2013.  Pertumbuhan  ikan  teri  bersifat  negative  allometric. Nilai Faktor kondisi (Kn) pada bulan September 2013 lebih tinggi daripada bulan Juli 2013. Hal ini mengindikasikan bahwa kondisi  lingkungan Muara Sungsang cocok untuk pertumbuhan ikan teri dan masih aman dari tekanan aktivitas penangkapan.</p><p>Kata kunci: allometrik, teri, faktor kondisi,distribusi frekuensi</p>

scholarly journals Length-length Relationship, Weight-Length Relationship, Sex Ratio and factor of Condition of Sardinella maderensis (Lowe, 1838) in South-Eastern Coastal waters of Benin

2020 ◽  
Vol 3 (3) ◽  
Keyword(s):  
Coastal Waters ◽  
Condition Factor ◽  
Stock Assessment ◽  
Central Area ◽  
Environmental Condition ◽  
Small Pelagic Fish ◽  
Relative Condition Factor ◽  
Length Relationship ◽  
Significant Difference ◽  
Shared Character

Face to decreasing of high-value commercial fishes’ stocks particularly of small pelagic fish in the central part of FAO fishery area 34, the present study has been carried out. From November 2016 to June 2018, monthly 1041 specimens of Sardinella maderensis were collected from southeastern coastal water of Benin randomly. Standard and Total Length, and weight as well as, the sex data were collected.t-test, z-test and ANOVA one tail test were performed to determine whether there was a significant difference between data. With a ratio of 1:1.5 statistically different from 1:1 (p<0.001), female dominate S. maderensis population in Benin. Negative allometry both for the female (2.92) the male (2.88) and combined sexes (2.90) highly different from the consensus, “b=3” (p<0.001) is remarked. The relative condition factor computed from the allometry shows an average environmental condition for S. maderensis growth. Regarding the shared character of S. maderensis stock in CECAF’s central area, these results are important for the next stock assessment..

scholarly journals Co-infestation of gills by different parasite groups in the mullet, Mugil platanus Günther, 1880 (Osteichthyes, Mugilidae): effects on relative condition factor

2004 ◽  
Vol 64 (3b) ◽  
pp. 677-682 ◽  
Author(s):  
M. J. T. Ranzani-Paiva ◽  
A. T. Silva-Souza
Keyword(s):  
Condition Factor ◽  
Sao Paulo ◽  
The Other ◽  
Total Weight ◽  
Paulo State ◽  
Total Length ◽  
Relative Condition Factor ◽  
Length Relationship ◽  
Gill Parasites ◽  
Estuarine Region

This study involved 334 specimens of mullet, Mugil platanus, captured monthly in the estuarine region of Cananéia, São Paulo State, Brazil, from July 1988 to June 1989, and examined for the presence of gill parasites. Parasitological inspections revealed the occurrence of the following groups: Trichodina sp., Monogenoidea, Copepoda, and Hirudinea. Only four mullets were not parasitized. Total weight and total length of all 334 mullet specimens examined were used for adjusting the weight-length relationship curve and calculating the relative condition factor (Kn). The 118 specimens infested with monogenoideans on average had lower weights than expected (Kn < 1.0), and the 81 fish co-infested with Copepoda, Monogenoidea, and Trichodina sp. showed a Kn < 1.0. The other infested and non-infested mullets had a Kn > 1.0. It was possible to infer that gill infestation with monogenoideans alters mullet weight, especially in the presence of co-infestation with Trichodina sp. and copepods.

scholarly journals Relative condition factor: Le Cren's legacy for fisheries science

2020 ◽  
Vol 32 ◽  
Author(s):  
Éder André Gubiani ◽  
Renata Ruaro ◽  
Vinícius Ricardo Ribeiro ◽  
Úrsula Morgana Gomes de Santa Fé
Keyword(s):  
Body Condition ◽  
Condition Factor ◽  
Relative Weight ◽  
Well Being ◽  
The Body ◽  
Scientometric Analysis ◽  
Aquatic Environments ◽  
Relative Condition Factor ◽  
Length Relationship ◽  
Thomson Reuters

Abstract: Aim In this paper we present a scientometric analysis aimed at to assess and quantify the contribution of Le Cren’s condition factor and the main ideas advanced by ‘Le Cren, 1951’ to studies on the health of individuals or populations in aquatic environments. Specifically, we addressed the following questions: (i) what are the temporal and spatial citation trends of ‘Le Cren, 1951’?; (ii) Which journals cited ‘Le Cren, 1951’ most frequently?; (iii) In which types of aquatic environments and organisms have Le Cren’s condition factor been most commonly applied?; (iv) Which of the main applications addressed in ‘Le Cren, 1951’ have been most frequently used by fisheries scientists?; (v) Which of the methods (i.e., Quételet’s index or body mass index, Fulton’s condition factor, Le Cren’s condition factor, relative weight, residual index and scaled mass index) used to estimate condition factor identified in the papers that cited ‘Le Cren, 1951’ have been most frequently used? In addition, the main criticisms of the use of the relative condition factor are discussed. Methods We carried out a scientometric analysis on the papers published from 1951 to December 2015 that cited Le Cren’s article. The papers were obtained from the Thomson Reuters database (ISI Web of Knowledge, apps.isiknowledge.com) in May 2016. Results In total, 1128 papers were assessed. The number of citations increased significantly over time. Most citations occurred in two journals (Journal of Fish Biology and Journal of Applied Ichthyology). Most of papers were carried out in marine environments. In addition, we show that Le Cren's paper has been cited mainly in articles that estimate the condition factor or the weight-length relationship of populations. Finally, we emphasize that the relative condition factor proposed by Le Cren in 1951 is still the main method used to estimate the body condition of an individual or population. Conclusions Le Cren's significant contribution to animal well-being is undeniable, and we emphasize that among the methods identified in the papers that cited ‘Le Cren, 1951’ that estimated body condition, the relative condition factor proposed by Le Cren in 1951 is still the most commonly used method.

Growth aspect of squid (Loligo chinensis) from the Banyuasin Coastal Waters, South Sumatra, Indonesia

2020 ◽  
Vol 27 ◽  
pp. 1-10
Author(s):  
Fauziyah . ◽  
Anna I.S. Purwiyanto ◽  
Fitri Agustriani ◽  
Wike A.E. Putri
Keyword(s):  
Coastal Waters ◽  
Growth Pattern ◽  
Condition Factor ◽  
Critical Value ◽  
Small Scale ◽  
Environmental Condition ◽  
Small Scale Fisheries ◽  
Relative Condition Factor ◽  
The Mean ◽  
First Maturity

Squid (Loligo chinensis) played an important role in small scale fisheries in Banyuasin Coastal Waters, however, the information and publications were limited. This study aimed to estimate the length at first capture (LC50%), the length at first maturity (Lm), growth pattern and condition factor of L. chinensis from Banyuasin Coastal Waters of South Sumatra. The squids were observed for samples in April 2018 and March 2019 using a stationary lift net. During the observation, the squid measurement was conducted on 1179 individuals. The mantle length ranged was 40-210 mm and their body weight ranged was 2-42 gr. The value of LC50%, Lm and ½L∞ were obtained at 103 mm, 147 mm, and 110.5 mm respectively. The analysis results of the length-weight relationship (W = 0.0145L1.4618, R2 = 0.9265 and P < 0.05) showed that their growth pattern was negative allometric (b < 3).  The mean relative condition factor (Kn = 1.01) above the critical value limits (K=0.56) confirmed that the environmental condition of Banyuasin Coastal Waters suitable for the L. chinensis growth. However, should be careful with their length size of the squid catch were not feasible in the capture.

scholarly journals Pola Pertumbuhan dan Faktor Kondisi Hiu Merak Bulu Carcharhinus brevipinna di Perairan Selatan Nusa Tenggara

2018 ◽  
Vol 3 (3) ◽  
pp. 209 ◽  
Author(s):  
Agus Arifin Sentosa ◽  
Fahmi Fahmi ◽  
Umi Chodrijah
Keyword(s):  
Growth Pattern ◽  
Condition Factor ◽  
Scientific Information ◽  
Growth Patterns ◽  
Catch Data ◽  
Weight Relationship ◽  
Relative Condition Factor ◽  
Direct Recording ◽  
Males And Females

<strong>Growth Pattern and Condition Factor of Spinner Shark Carcharhinus brevipinna in Southern Nusa Tenggara Waters.</strong> The spinner sharks are one of shark commodities that are utilized optimally from the southern of Nusa Tenggara waters, however, the scientific information is still limited. This study aimed to assess the growth pattern and condition factors of the spinner shark, <em>Carcharhinus brevipinna</em> in southern Nusa Tenggara waters. The research was conducted from January to December 2016 using direct recording of the catch data. Information on length, weight and sex determinations were collected by the enumerator. The data was analysed descriptively with the shark condition was determined based on the relative condition factor obtaining from the length-weight relationship. The results showed that growth patterns of the spinner shark, both males and females, were allometrically negative. The relative condition factors of the catch of male sharks were ranged from 0.206 – 2.225  and females from 0.237 – 3.361. The condition factors of spinner sharks were not different between sexes and time of fishing, but they were different in length classes.

scholarly journals Hubungan panjang bobot dan faktor kondisi ikan petek, Leiognathus equulus (Forsskål, 1775) di Teluk Pabean, Jawa Barat

2018 ◽  
Vol 17 (3) ◽  
pp. 311
Author(s):  
Reiza Maulana Aditriawan ◽  
Nico Runtuboy
Keyword(s):  
Growth Pattern ◽  
Condition Factor ◽  
Weight Relationship ◽  
Relative Condition Factor ◽  
Fish Samples ◽  
Fish Collection ◽  
One Year ◽  
Relationship Of

This study is aimed to determine length-weight relationship and condition factor of common ponyfish in Pabean Bay, Indramayu. The study was carried out for one year, from April 2016 to March 2017. Fish collection were caught using gillnet and set net. total of 154 individual fishes were caught, the fish samples ranged from 18 - 141 mm in length and 0.05 – 41.35 g in weight. The length-weight relationship of ponyfish throughout a year was W = 7x10-06 L3,1983. The result indicated that the growth pattern of fish was positive allometric. The relative condition factor of ponyfish was varied from 0,67 – 1,42 AbstrakPenelitian ini bertujuan untuk menentukan hubungan panjang bobot dan faktor kondisi ikan petek yang ada di Teluk Pabean, Indramayu. Penelitian dilaksanakan selama satu tahun dari bulan April 2016 hingga bulan Maret 2017. Ikan contoh ditangkap dengan menggunakan alat tangkap yaitu jaring insang dan sero. Jumlah ikan yang tertangkap seba-nyak 154 ekor dengan kisaran panjang total 18 - 141 mm dan bobot 0,05 – 41,35 g. Hubungan panjang-bobot ikan petek sepanjang tahun 2016 adalah W = 7x10-06 L3,1983. Hasil ini menunjukkan bahwa pola pertumbuhan ikan bersifat alome-trik positif. Faktor kondisi ikan petek berfluktuasi berkisar antara 0,67 – 1,42.

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