scholarly journals Spatiotemporal variations in length-weight relationship, growth pattern and condition factor of Periophthalmus variabilis Eggert, 1935 in Vietnamese Mekong Delta

PeerJ ◽  
2022 ◽  
Vol 10 ◽  
pp. e12798
Author(s):  
Quang Minh Dinh ◽  
Ton Huu Duc Nguyen ◽  
Tien Thi Kieu Nguyen ◽  
Giang Van Tran ◽  
Ngon Trong Truong
Keyword(s):  
Growth Pattern ◽  
Condition Factor ◽  
Mekong Delta ◽  
Fish Growth ◽  
Maturation Stage ◽  
Fish Length ◽  
Mangrove Forests ◽  
Wet Season ◽  
Positive Allometry ◽  
Weight Relationship

Length-weight relationship (LWR), growth pattern and condition factor (CF) play a vital role in fish resource evaluation and management but data on this is limited for Periophthalmus variabilis. This is an amphibious fish that lives in the mudflats of the mangrove forests in the Western Pacific regions, including the Vietnamese Mekong Delta (VMD). This paper contributes to the understanding of the LWR, growth pattern and CF of P. variabilis. Fish specimens were collected by hand at four sites in the VMD from April 2020 to March 2021. The analysis of 495 individual fish (259 females and 236 males) showed that fish weight could be estimated from a given fish length due to high determination values (r2 = 0.70 − 0.97). Dusky-gilled mudskippers of the VMD exhibited positive allometry, as indicated by their larger than 3 b value (b = 3.094 ± 0.045, p = 0.04). However, the growth pattern of the mudskipper between the sex and maturation stage (immature versus mature) showed isometry. These fish displayed positive allometry in the dry season (b = 3.138 ± 0.065) (>3, p = 0.04) but isometry in the wet season (b = 3.058 ± 0.061) (≈3, p = 0.34). Fish growth ranged from isometry to positive allometry and varied by site (b = 2.850 ± 0.103–3.370 ± 0.114) and month (b = 2.668 ± 0.184–3.588 ± 0.299) based on the b value. The CF of P. variabilis was not affected by sex (p = 0.29), body size (p = 0.64) or season (p = 0.43), but was affected by site (p = 0.01) and month (p = 0.01). The CF of this species (1.05 ± 0.02) was higher than 1 (p < 0.001), indicating that the fish adapted well to their habitat.

scholarly journals Length-weight relationship and condition factor of Hamilton's thryssa fish (Thryssa hamiltonii) from Pabean Bay, West Java, Indonesia

2021 ◽  
Vol 322 ◽  
pp. 01001
Author(s):  
Ade Sunaryo
Keyword(s):  
Growth Pattern ◽  
Field Survey ◽  
Condition Factor ◽  
Fish Growth ◽  
West Java ◽  
Research Results ◽  
Weight Relationship ◽  
Fish Samples ◽  
Body Weights ◽  
The Relationship

The length-weight and condition factor can be used as an indicator of the condition for fish growth and to determine the suitability of the environment. The research objective was to evaluate the relationship between length-weight and condition factor of Hamilton's thryssa fish (Thryssa hamiltonii) from Pabean Bay West Java Indonesia. The researchers have been carried out to analyze the two essential parameters: the lengthweight relationship that can be used to evaluate and investigate stock density and condition factor of Hamilton's thryssa fish (Thryssa hamiltonii). A total of 195 fish samples were collected over the 8th month from the sea estuary and measured and weighed during a field survey conducted from April to December 2015. Samples of fish were collected using gillnet and set net. The total length of the fish ranged from 47-186 mm, with body weights ranging from 0.47 - 45.37 g. The results of the length-weight relationship were shown as regression was Y = 7E-07 X3.4339 or W = 7.45 x 10−7.L3.43389, and the condition factors ranged from 0.77 to 1.39. These research results indicated that the growth pattern of Hamilton's Thryssa fish (Thryssa hamiltonii) was positive allometric.

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).

scholarly journals Size composition and length-weight relationships of the Yellowfin Tuna (Thunnus albacares) in Bone Bay

2020 ◽  
Vol 153 ◽  
pp. 01006
Author(s):  
Jalil ◽  
Achmar Mallawa ◽  
Faisal Amir ◽  
Safruddin
Keyword(s):  
Growth Pattern ◽  
Condition Factor ◽  
Average Length ◽  
Fork Length ◽  
Size Composition ◽  
Yellowfin Tuna ◽  
Thunnus Albacares ◽  
Weight Measurement ◽  
Weight Relationship ◽  
The Relationship

The size composition, length-weight relationship, and condition factor of Thunnus albacares were examined in Bone Bay. Sampling was conducted at two stations, i.e., Station I at Cimpu in Luwu Regency and Station II at Lonrae in Bone Regency between July 2018 and June 2019. 10246 and 2651 yellowfin tunas were captured in Station I and Station II, respectively. Measurement of the fork length ranged between 20 cm and 192 cm with an average length of 81,257 ± 33,456 cm in Station I, and between 26 to 162 cm with an average length of 95,479 cm in Station II. The weight measurement ranged between 0,35 and 99,21 kg with an average of 14,539 kg in Station I, and between 0,46 and 97,35 kg with an average of 26,978 kg in Station II. Calculation of the relationship was based on the formula W= 5,5−5FL2,7454 (R2 = 0,963) in Station I, and W=4,1−5FL2,9103 (R2 = 0,761) in Station II. The values of condition factor at Station I and Station II were 2,1395 and 3,4374, respectively. It is quite evident that the growth pattern of the yellowfin tunas at Bone Bay was negatively allometric, indicating that the length increased faster than the weight.

scholarly journals Fly fish growth pattern (Decapterus spp) in Likupang Water, Nort Sulawesi

2019 ◽  
Vol 7 (1) ◽  
pp. 113
Author(s):  
Inggrid M. F Akerina ◽  
Silvester B. Pratasik ◽  
Nego E. Bataragoa
Keyword(s):  
Size Distribution ◽  
Growth Pattern ◽  
Growth Patterns ◽  
Fish Growth ◽  
Purse Seine ◽  
Relationship Analysis ◽  
Weight Relationship ◽  
Fish Samples

This study was aimed to find out the size distribution of scad (Decapterus spp) caught by Likupang fishermen and to find out theirgrowth patterns. Fish samples were collected by traditional purse seine fishermen in Likupang waters. Total catches were 139 individuals consisting of 89 D. macarellus and 50 D. macrosoma.The former was dominated by size of 19.2-20.6 cm, while the latter was dominated by size of 13.1-14.1 cm. Length-weight relationship analysis showed that the growth patterns of D. macarellus and D. Macrosoma were isometric meaning that the increase in length is consistent with weight gain.Keywords: Likupang, Decapterus spp and growth patternsABSTRAKPenelitian ini bertujuan untuk mengetahui distribusi ukuran ikan layang (Decapterus spp) yang ditangkap oleh nelayan Likupang and untuk menduga pola pertumbuhannya. Sampel ikan diperoleh nelayan tradisional pukat cincin di perairan Likupang.Total hasil tangkapan adalah 139 ekor terdiri dari 89 ekor  D. macarellus dan 50 D. macrosoma. Hasil tangkapan D. macarellus didominasi oleh kelas ukuran 19,2-20,6 cm, sedangkan D. macrosomadidominasi oleh kelas ukuran 13,1-14,1 cm. Analisis hubungan panjang berat menunjukkan bahwa pola pertumbuhan ikan D. macarellusdan D. macrosoma bersifat isometrik yang artinya pertambahan panjang selaras dengan pertambahan berat.Kata kunci: Likupang, Decapterus spp dan Pola pertumbuhan

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 Width-weight relationship and condition factor of Ucides cordatus (Crustacea, Decapoda, Ucididae) at tropical mangroves of Northeast Brazil

2012 ◽  
Vol 102 (3) ◽  
pp. 277-284 ◽  
Author(s):  
Marina S.L.C. Araújo ◽  
Daniela S. Castiglioni ◽  
Petrônio A. Coelho
Keyword(s):  
Condition Factor ◽  
Carapace Width ◽  
Aquatic Organisms ◽  
Reproductive Period ◽  
Environmental Conservation ◽  
Mangrove Forests ◽  
Present Contribution ◽  
Ucides Cordatus ◽  
Weight Relationship ◽  
Rivers State

The present contribution aims at evaluating the carapace width vs. humid weight relationship and the condition factor of Ucides cordatus (Linnaeus, 1763), in the mangrove forests of the Ariquindá and Mamucabas rivers, state of Pernambuco, Brazil. These two close areas present similar characteristics of vegetation and substrate, but exhibit different degrees of environmental conservation: the Ariquindá River is the preserved area, considered one of the last non-polluted of Pernambuco, while the Mamucabas River suffers impacts from damming, deforestation and deposition of waste. A total of 1,298 individuals of U. cordatus were collected. Males were larger and heavier than females, what is commonly observed in Brachyura. Ucides cordatus showed allometric negative growth (p < 0.05), which is probably related to the dilatation that this species develops in the lateral of the carapace, which stores six pairs of gills. The values of b were within the limit established for aquatic organisms. Despite of the condition factor being considered an important feature to confirm the reproductive period, since it varies with cyclic activities, in the present study it was not correlated to the abundance of ovigerous females. However, it was considered a good parameter to evaluate environmental impacts, being significantly lower at the impacted area.

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

scholarly journals Population features of Hoplosternum littorale (Hancock, 1828) (Siluriformes, Callichthyidae) at Santo Anastacio Reservoir, Brazil

2013 ◽  
pp. 3767-3772 ◽  
Author(s):  
Francisco D. Do Nascimento Chaves ◽  
Jorge I. Sánchez-Botero ◽  
Danielle Sequeira Garcez ◽  
Vitor Cavalcanti dos Reis
Keyword(s):  
Condition Factor ◽  
Well Being ◽  
Northeastern Brazil ◽  
Maturation Stage ◽  
Gonadal Maturation ◽  
Weight Relationship ◽  
Growth Deficiency ◽  
State Classification ◽  
Sexual Determination ◽  
Hoplosternum Littorale

ABSTRACTObjective. The length-weight relationship and condition factor of fish are indicators of physiological well-being and may be related to reproduction and feeding periods. These attributes were evaluated for a population of Hoplosternum littorale sampled in the Santo Anastácio Reservoir (Fortaleza, Northeastern Brazil). Materials and methods. One hundred and fifty-five specimens were collected with gillnets between October 2009 and March 2010, and standard length (cm), total weight (g), sex and gonadal maturation stage were registered. Results. The observed length-weight relationship indicated negative allometric adjustment (2.72). Only seventy individuals were evaluated for the condition factor analysis, sexual determination and gonadal state classification. Condition factor values peaked in November and plummeted in February, no statistical differences in sex ratio (χ²=13.683; p=0.057) were observed. Mature females were collected throughout the study period. Conclusions. The results indicate that the population of H. littorale in the Santo Anastácio reservoir presents growth deficiency and changes in reproductive strategy in this hypereutrophic environment.

Sign in / Sign up

Export Citation Format

Share Document