scholarly journals Pola pertumbuhan dan faktor kondisi ikan lemeduk (Barbodes schwanenfeldii) di Sungai Belumai Deli Serdang Provinsi Sumatera Utara

2017 ◽  
Vol 4 (1) ◽  
pp. 8
Author(s):  
Siti Aisyah ◽  
Darma Bakti ◽  
Desrita Desrita
Keyword(s):  
Frequency Distribution ◽  
Growth Pattern ◽  
Condition Factor ◽  
Length Frequency Distribution ◽  
Length Frequency ◽  
Growth Coefficient ◽  
Weight Relationship

Penelitian ini dilakukan di Sungai Belumai Kabupaten Deli Serdang Provinsi Sumatera Utara pada Bulan Mei dan juni 2014 di empat lokasi yang berbeda dengan menggunakan metode sensus. Tujuan dari penelitian ini untuk mengetahui aspek pertumbuhan (sebaran frekuensi panjang, hubungan panjang bobot, faktor kondisi dan koefisien pertumbuhan). Jumlah ikan lemeduk yang tertangkap adalah 55 ekor. Hasil penelitian menggambarkan bahwa populasi ikan didominasi oleh sebaran ukuran kelas panjang 174-194 mm. Hasil hubungan panjang berat menunjukkan bahwa pola pertumbuhan ikan bersifat allometrik negatif (b=2,565) dimana pertambahan panjang lebih cepat dibandingkan pertambahan berat. Nilai faktor kondisi ikan lemeduk (Barbodes schwanenfeldii) berkisar 0,946-1,059.This research was done in Belumai River Deli Serdang District North Sumatera Province. This research was conducted in May until June 2014 in four different locations by using census method. The purpose of this research is to know the aspect of growt (length frequency distribution, length-weight relationship, condition factor and growth coefficient). The number of lemeduk fish which caught were 55 fish. Result shown that the population is dominate by length frequency distribution 174-194 mm. Result length-weight relationship shown that growth pattern was allometric negative (b=2,565) where the length is faster growth than the weight. The condition factor of lemeduk fish was around 0,946-1,059.

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 Preliminary biological data on Pomadasys incisus (Osteichthyes: Haemulidae) in the Aegean Sea, Greece

2008 ◽  
Vol 9 (2) ◽  
pp. 53 ◽  
Author(s):  
K. KAPIRIS ◽  
E. KALLIAS ◽  
A. CONIDES
Keyword(s):  
Sex Ratio ◽  
Frequency Distribution ◽  
Aegean Sea ◽  
Biological Data ◽  
Length Frequency Distribution ◽  
Length Frequency ◽  
Weight Relationship ◽  
Thermophilic Species ◽  
The Status ◽  
First Time

The present paper gives, for the first time, some biological data concerning Pomadasys incisus in theArgolikos Gulf (C. Aegean Sea). The bastard grunt (Pomadasys incisus) is a thermophilic species welladapted in the above area, but the status of fishery suggests an overexploitation. The sex ratio was infavour of males. The length frequency distribution did not differ between the sexes. Growth in weight wasestimated by means of the length-weight relationship. Reproduction seemed to take place in summer. Certainmorphometric characters appeared to be useful while comparing populations among the differentpopulations in the Mediterranean.

scholarly journals Length weight relationship, growth parameter, and condition factor of caroun croaker Johnius carouna (Cuvier, 1830) in the Southern waters of Java

2019 ◽  
Vol 19 (2) ◽  
pp. 231 ◽  
Author(s):  
Ria Faizah ◽  
Regi Fiji Anggawangsa
Keyword(s):  
Condition Factor ◽  
Growth Parameter ◽  
Growth Equation ◽  
Von Bertalanffy ◽  
Length Frequency ◽  
The South ◽  
Growth Coefficient ◽  
Weight Relationship ◽  
Central Java ◽  
Von Bertalanffy Growth Equation

Caroun croaker (Johnius carouna) is one of demersal fishes which are commonly caught in the south of Java waters. This fish captured by trammel net, gillnet, danish seine and mini trawl. This study aims to determine length and weight relationship, growth parameter, length frequency distribution and condition factors of croaker fish caught in the south of Java waters.   This study was conducted from January-December 2015 at the Cilacap Ocean Fisheries Port, Central Java. Data collected was total length (TL in mm) and weight (W in g) of caroun croacker fish.  A total of 2141 of Caroun croaker was caught by mini trawl during the sampling periods. The result showed that the size of croaker fish caught by mini trawl ranged between 85-225 mm with an average was 143.7 mm. Length and weight relationship expressed by equation of W = 0.0062 TL3.2889 ( R2 = 0.9443). The growth pattern of croaker fish was allometric positive. The Von Bertalanffy growth equation of caroun croacker fish in south of Java waters was Lt =155 (1 - e -0.9(t+0.2127)) with the asymptotic length (L∞) =155  mm, growth coefficient (K) = 0.9 per year and the theoretical age croaker fish that was equal to (t0) = - 0,2127.

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

Age and growth pattern of the thin-lipped mullet Liza Ramada in the Eastern coast of Libya.

2016 ◽  
Vol 5 (06) ◽  
pp. 4620
Author(s):  
Manal M. Khalifa ◽  
Ramadan A. S. Ali ◽  
Abdalla N. Elawad* ◽  
Mohammad El. ElMor
Keyword(s):  
Frequency Distribution ◽  
Age Groups ◽  
Age Determination ◽  
Age And Growth ◽  
Eastern Coast ◽  
Growth Equation ◽  
Length Frequency Distribution ◽  
Length Frequency ◽  
Scale Reading ◽  
Von Bertalanffy Growth Equation

Age and growth characteristics of the thin-lipped Grey Mullet (Liza ramada) were investigated in Eastern coast of Libya. Aging was done by two methods: counting annuli on scales and by length frequency distribution, a total of 218 scales were studied for age determination, in addition of 334 fishes specimen for length frequency distribution reading. Four age groups were determined from scale reading, and five age groups from length frequency distribution methods, the parameters of the Von Bertalanffy growth equation for both sex of all individuals were estimated at 35.4 cm, 0.187 per year, -1.14 years and 2.4, for male were estimated at 35.7 cm, 0.17 per year, -1.367 and 2.3, for female were 38.6 cm, 0.156 per year, -1.383 and 2.4, for L∞, k and t0, and φ′, respectively.

scholarly journals Age, Growth and Ovarian Histology of Sardinella aurita (Valenciennes, 1847) in the South of Atlantic Moroccan Coast

2021 ◽  
Vol 21 (04) ◽  
pp. 191-204
Author(s):  
Ayoub Baali ◽  
Oum Keltoum Belhsen ◽  
Khalil Chahdi Ouazzani ◽  
Khadija Amenzoui ◽  
Ahmed Yahyaoui
Keyword(s):  
Frequency Distribution ◽  
Stock Assessment ◽  
Atlantic Coast ◽  
Age Groups ◽  
Age Determination ◽  
Length Frequency Distribution ◽  
Length Frequency ◽  
The South ◽  
Moroccan Coast ◽  
Sardinella Aurita

Otoliths reading and length frequency distribution were used for age determination and growth estimation of Sardinella aurita (round sardinella) stock of Southern Atlantic coast of Morocco. Both otoliths' method for age determination and Bhattacharya’s method for length frequency analysis showed five age groups. The growth performance index revealed that there is significant accordance among method of length frequency distribution and otoliths reading for stock assessment studies of Sardinella aurita stock in the south of Morocco. The microscopic observation of female gonads using histology method was investigated for the first time in our study area and confirms the presence of five principal stages of ovary of sardinella aurita: immature, maturing virgin and recovering spent, mature (or pre-spawning phase), spawning, post-spawning or spent. In addition, our results of the fecundity showed that the mean relative fecundity obtained is estimated at 193 ± 98 oocytes/g which is lower compared to those obtained in other areas in the Atlantic coast.

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 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).

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