scholarly journals Morphometric characters and length-weight relationship of Bele, (Glossogobius giuris) from Mithamoin haor, Kissorgonj, Bangladesh

2016 ◽  
Vol 12 (2) ◽  
pp. 389-395 ◽  
Author(s):  
MS Hossain ◽  
N Sultana
Keyword(s):  
Good Condition ◽  
B Value ◽  
Body Depth ◽  
Morphometric Characters ◽  
Total Length ◽  
Straight Line ◽  
Significant Difference ◽  
Eye Diameter ◽  
Glossogobius Giuris ◽  
Relationship Of

Different morphometric characters such as total length (TL), standard length (SL), head length (HL), eye diameter (ED), body depth (BD), pre-orbital length (POL) were measured on Glossogobius giuris collected from Mithamoin haor showed that percentage growth value of SL, BD, HL, ED and POL were higher in female. A linear relationship was found between total length and morphometric characters and these also showed significant positive correlation (p<0.001) between dependent and independent variables. The length-weight relationships of G. giuris were calculated for males, females. The relationship was analyzed using the formula W=aLb after transform into straight-line equitation. The equation obtained for male was; Log W = 2.757 Log TL – 1.757; for female; Log W = 2.843 Log TL – 1.868. The regression coefficients (b) between males and females did not show any significant difference (p>0.05) while b value significantly deviated from the expected cube value of 3 in case of male only thus indicating negative allometry. However, relative condition factor (Kn) of G. giuris computed for female was 1.009 ± 0.124 and for male was 1.016 ± 0.199, which suggest the specimen were healthy and in good condition. All this variation between male and female may be due to spawning cycle or other physiological activities or environmental factors.J. Bangladesh Agril. Univ. 12(2): 389-395, December 2014

scholarly journals Biometric study of the deep bodied mahseer Tor tor (Hamilton Buchanan) from Ujh River, Kathua (J&K)

2021 ◽  
Vol 16 (3) ◽  
Author(s):  
Monika Bansal ◽  
Ankush Sharma ◽  
Ram Krishan ◽  
Rajesh Kumar ◽  
Koshal Kumar ◽  
...  
Keyword(s):  
Standard Length ◽  
Head Length ◽  
Body Parts ◽  
Monthly Basis ◽  
Body Depth ◽  
Morphometric Characters ◽  
Total Length ◽  
Eye Diameter ◽  
Tor Tor ◽  
External Body

Morphometric characters and meristic count of a fish, Tor tor (Hamilton Buchanan) have been studied from river Ujh, a tributary of river Ravi in District Kathua, (J&K). Collection of samples on monthly basis was conducted for the study of morphological characters of Tor tor. Present study shows some deviations with respect to few morphometric characters and meristic counts that have been aptly discussed in the following discussion. The positive correlation has been observed between total length and external body parts. The highly strong correlated body parameter in relation to total length is standard length (r = 0.98) and least correlated with eye diameter (r = 0.32) and the highly correlated external body part in relation to standard length is caudal length (r = 0.96) and least correlated part is eye diameter (r = 0.35) and also strong correlation was observed between head length and maximum body depth (r = 0.93) and least correlation between head length and eye diameter (r = 0.23). The correlation analysis shows that all the morphometric characters change proportionally with increase in the total length. These results act as baseline data on morphometry of Tor tor which helps in easy identification and will be beneficial for the development of conservational strategies of the natural stocks of Tor tor in river Ujh, Kathua (J&K).

scholarly journals Morphometric characters and their relationship in estuarine catfish

1970 ◽  
Vol 6 (2) ◽  
pp. 349-353 ◽  
Author(s):  
M Begum ◽  
Abdullah Al-Mamun ◽  
ML Islam ◽  
MJ Alam
Keyword(s):  
Sexual Dimorphism ◽  
Linear Relationship ◽  
Standard Length ◽  
Head Length ◽  
Pectoral Fin ◽  
Morphometric Characters ◽  
Total Length ◽  
Length Standard ◽  
Eye Diameter ◽  
Males And Females

The morphometric observations were made on total length, standard length, pre-caudal length, head length, eye diameter and depth of body at pectoral fin base of estuarine catfish M. gulio. Males and females showed homogeneity in characters. A linear relationship was found between total length and morphometric characters. Regression of length and weight did not deviate significantly from cube law indicating isometric growth. The fish exhibited sexual dimorphism. Keywords: Morphometric characters; Estuarine catfish; Mystus gulio DOI: 10.3329/jbau.v6i2.4833 J. Bangladesh Agril. Univ. 6(2): 349-353, 2008

scholarly journals Morphological Divergence of Snow Trout (Schizothorax Richardsonii, Gray 1932) from Rivers of Nepal with Insights from a Morphometric Analysis

2015 ◽  
Vol 3 (3) ◽  
pp. 464-473
Author(s):  
Suresh Kumar Wagle ◽  
Neeta Pradhan ◽  
Madhav Kumar Shrestha
Keyword(s):  
Size Variation ◽  
Principal Component ◽  
Head Region ◽  
Body Depth ◽  
Morphometric Characters ◽  
Significant Difference ◽  
Snow Trout ◽  
Major River ◽  
Mean Vectors ◽  
Schizothorax Richardsonii

Asala or snow trout (Schizothorax richardsonii, Cyprinidae), one of highly valued freshwater fish of Transhimalayan regions, is distributed in upper reaches of all major river systems of Nepal. Morphometric diversification between six river populations of S. richardsonii was examined to identify intraspecific unit for enabling better management of the resources. Significant differences were observed in 17 measured morphometric characters of 207 specimens among the six river populations. Multivariate analysis of variance (Wilks' test) indicated a significant difference for mean vectors of mophometric measurements (? =0.012, F85, 731 = 19.999, P<0.0001) among populations. Principal component and discriminant functions (DFs) analysis of morphometric measurements revealed high seperation of the stocks. The analysis showed that most of the shape and size variation among these populations occurs in the head region, body depth and fin length. Apparent morphometric divergence among S. richardsonii samples showed the existence of three differentiated groups viz., the Indrawati and Khudi populations, the Melamchi and Phalaku Rivers, and the Sabha and Tadi River populations of Nepal. The results of this study may be useful in fisheries management and potential exploitation of this species in coldwater aquaculture.Int J Appl Sci Biotechnol, Vol 3(3): 464-473

scholarly journals KARAKTER MORFOMETRIK DAN MERISTIK IKAN EKOR PEDANG (Xiphophorus helleri Heckel, 1848) DI DANAU BUYAN, BULELENG, BALI

2019 ◽  
Vol 11 (2) ◽  
pp. 103
Author(s):  
I Nyoman Yoga Parawangsa ◽  
Prawira A. R. P Tampubolon ◽  
Nyoman Dati Pertami
Keyword(s):  
B Value ◽  
The Body ◽  
Freshwater Ecosystem ◽  
Meristic Characters ◽  
Morphometric Characters ◽  
Male And Female ◽  
Total Length ◽  
Length Relationship ◽  
Different Color ◽  
D 12

Ikan ekor pedang bukan merupakan ikan asli Indonesia. Ikan ini berasal dari Amerika Tengah dan dilaporkan menyebabkan kerugian di beberapa perairan yang dihuninya. Ikan ekor pedang merupakan ikan kedua yang paling banyak tertangkap di Danau Buyan. Penelitian ini bertujuan untuk mengungkap karakter morfometrik dan meristik, hubungan panjang bobot dan hubungan panjang total-panjang baku pada dua varian ikan ekor pedang di Danau Buyan yang memiliki warna tubuh yang berbeda. Penelitian dilakukan pada bulan Januari sampai April 2018. Ikan yang diamati berjumlah 160 ekor. Pengamatan meliputi pengukuran 12 karakter morfometrik tradisional, 14 karakter truss morphometric, penghitungan empat karakter meristik, dan penimbangan bobot. Panjang total ikan ekor pedang jantan dan betina pada varian I adalah 43,94 - 79,47 mm dan 43,81 - 115,80 mm dengan nilai b= 2,90 dan b= 2,98. Kemudian, panjang total ikan ekor pedang pada varian II adalah 45,76 - 83,91 mm untuk ikan jantan dan 41,43 - 88,49 mm untuk ikan betina dengan nilai b= 2,80 dan b= 3,07. Karakter meristik pada kedua varian ikan ekor pedang baik jantan dan betina adalah D. 12-13 ; A. 8 - 9. Hubungan panjang bobot ikan ekor pedang pada kedua varian menunjukan pertumbuhan isometrik. Berdasarkan pengamatan dalam penelitian ini, diketahui tidak terdapat perbedaan pada dua varian ikan ekor pedang di Danau Buyan.Green swordtail is not originally from Indonesia, but from Central America. This fish was reported harmful in some freshwater ecosystem. Green swordtail was the second most caught fish in Buyan Lake. The aims of this research were to reveal morphometric and meristic characters, length-weight relationship and total length-standard length relationship on two variants of green swordtail with the different color in Buyan Lake. This research was conducted from January to April 2018 in Buyan Lake. The number of measured and weighed fish were 160 individuals. There were 12 traditional morphometric characters, 14 truss morphometric characters, and four meristic characters observed. Respectively, the total length for green swordtail variant I male and female were 43.94 - 79.47 mm and 43.81 - 115.80 mm. The b value for both of the variant I were 2.90 and 2.98. For the variant II, the total length was 45.76 - 83.91 mm for male fish and 41.43 - 88.49 for female. The b value for variant II were 2.80 and 3.07 for male and female respectively. Meristic characters for all variant and sex was D 12 - 13; A 8 - 9. The growth pattern was isometric. There is no difference in the body shape between the variant of green swordtail fish.

scholarly journals New species of Eugerres from the Usumacinta Province, México and Guatemala with a redescription of E. mexicanus (Steindachner, 1863) (Teleostei: Gerreidae)

2013 ◽  
Vol 11 (2) ◽  
pp. 307-318 ◽  
Author(s):  
Adrian F. Gonzalez-Acosta ◽  
Rocio Rodiles-Hernandez
Keyword(s):  
New Species ◽  
The Body ◽  
Body Depth ◽  
Morphometric Characters ◽  
Dorsal Fin ◽  
Fin Ray ◽  
Fin Rays ◽  
Freshwater Habitats ◽  
Eye Diameter ◽  
Pelvic Fin

Eugerres castroaguirrei, new species is described from the río Grijalva-Usumacinta basin of southeastern Mexico and northern Guatemala. Eugerres castroaguirrei and E. mexicanus are distinguishable from their marine estuarine congeners by the dorsal-fin origin posterior to the insertion of the pectoral and pelvic fins, a shorter and broad based supraoccipital crest, and a distinct geographic distribution restricted to freshwater habitats. Eugerres castroaguirrei differs from E. mexicanus by diagnostic characters of the body skeleton: anterior process of supraoccipital convex, infraorbital 1 with foramen, premaxillary ascending process developed with margins curved, pharyngeal plate granular and not serially arranged, and dorsal and anal fin-rays reduced. Likewise, E. castroaguirrei is characterized by an oblong and laterally thicker body (37.6-58.5% HL); greater body depth (33.8-42.1% SL), and eye diameter (23.3-31.6% HL); in addition to 16 significant morphometric characters: length of the second dorsal-fin spine 23.2-34.2% SL; depressed second dorsal-fin spine (extending to base of third to fourth dorsal-fin rays); length of second anal-fin spine 11.1-20.6% SL, depressed second anal-fin spine extending to the base of third to fourth anal-fin rays not reaching the distal point of last anal-fin ray; pelvic-fin spine length 49.7-65.0% in the first pelvic-fin ray length

Morphometrics and length-weight relationship of Schizothoraxcurvifrons Heckel 1838 in River Jhelum, Kashmir, India

2016 ◽  
Author(s):  
Tasaduq H. Shah ◽  
Sauliheen Qadri ◽  
M. H. Balkhi ◽  
Bilal A. Bhat ◽  
F. A. Bhat ◽  
...  
Keyword(s):  
B Value ◽  
Cyprinid Fish ◽  
Allometric Growth ◽  
Morphometric Characters ◽  
Fishery Resource ◽  
Pooled Data ◽  
Weight Relationship ◽  
Highly Correlated ◽  
Relationship Of

Schizothorax curvifrons, an indigenous cyprinid fish of Kashmir, forms an important coldwater fishery resource of the valley. This study was aimed to describe the morphometrics and length-weight relationship of S. curvifrons in River Jhelum Kashmir. The various morphometric characters showed high co-efficient of correlation (r) values, indicating that the characters were highly correlated to each other. The length-weight relationship was established logarithmically as Log W = -3.9323 + 2.5863 Log L (r2=0.746) for males, Log W = -4.1708 + 2.6852 (r2=0.745) Log L for females and Log W = -3.9975 + 2.6138 Log L (r2=0.746) for pooled data. The b value (2.6138) was found to be significantly different from 3 indicating negative allometric growth.

scholarly journals Length-weight relationship, body condition, and fishing gear selectivity of shortfin scad (Decapterus macrosoma) landed in Banjarmasin fishing port, Indonesia

2020 ◽  
Vol 28 (2) ◽  
pp. 113-124
Author(s):  
Keyword(s):  
Scientific Information ◽  
Good Condition ◽  
Growth Patterns ◽  
The Body ◽  
Body Depth ◽  
Total Length ◽  
Gear Selectivity ◽  
Fish Samples ◽  
Precautionary Measures ◽  
Pelagic Fisheries

AbstractThe present study provides scientific information on the growth pattern and relative condition of shortfin scad, Decapterus macrosoma Bleeker landed in Banjarmasin fishing port, Indonesia. A total of 313 individual scad comprising 178 males and 135 females ranging from 152 to 225 mm total length and from 37 to 110 g weight were investigated. The body shape of both males and females showed isometric growth patterns indicating that all body dimensions grew at the same rate. The regression coefficient was significantly different between the sexes. The total length (TL), body weight (W), body depth (BD), W/TL, and BD/TL ratios and condition factors of the females were comparatively higher than those of males. The highest percentage of the catch was between 180 and 189 mm TL (32.59–40.45%) and 50 and 59 g W (20.65-21.79%). The relative condition factor values ranged from 0.799 to 1.433, which reflected the good condition of the fish samples. The estimated length at first capture (Lc50) and selection factor values were 180 mm and 3.54 for males and 185 mm and 3.64 for females. In the present work, the purse seine was considered to be a male-biased gear, with a sex ratio of 1.3 : 1. The outcomes of this research could be useful for sustainable pelagic fisheries management and for developing precautionary measures to prevent the overexploitation of this species.

scholarly journals Analysis and interdependence of morphometric characters in the Hill stream fish Mastacembelus armatus (Lacepede) from Garhwal Himalaya

2019 ◽  
Vol 11 (1) ◽  
pp. 107-115
Author(s):  
Mohd Rashid ◽  
Mohd Sagir ◽  
Anoop Kumar Dobriyal
Keyword(s):  
Standard Length ◽  
Maximum Size ◽  
Body Depth ◽  
Cluster Technique ◽  
Morphometric Characters ◽  
Total Length ◽  
Length Standard ◽  
Linearity Of Regression ◽  
Mastacembelus Armatus ◽  
The Hill

Study of morphometric characters is generally carried out for species identification in fish biology. It includes the measurements of all body lengths and their inter relationships in terms of ratios and percentages to the independent lengths (Total length, standard length and head length). Present paper deals with the analysis of various morphometric characters with species characteristics in Mastacembelus armatus (Lacepede),  which is one of the most important eel like hillstream fish belonging to order Mastacembeliformes and family Mastacembelidae from river Western Nayar (290 45’ to 300 15’ latitude and 780 34’ to 790 12’ longitude ). Total length, standard length and head lengths were considered as an independent variables in ratio of which other lengths (caudal length, pre orbital length, post orbital length, maximum body depth, snout length and eye diameter) were analysed. The maximum size of fish was observed as 60 cm and the minimum being 10 cm. By using regression and correlation analysis, the modelling of data is presented to find out their interrelationship. The closest correlation was in between total length and standard length (r= 0.999) and the farthest between total length and caudal length ( r= 0.878). The linearity of regression was tested by the analysis of variance (ANOVA) which showed that all the relationships were significant at the level of 5 % significance. The multivariate analysis was also done by using cluster technique which sowed except caudal length rest all characters were forming a close cluster.

scholarly journals Morphometric and Meristic Analysis of Tor putitora (Hamilton Buchanan) from Ujh River, Kathua (J&K)

2021 ◽  
Vol 16 (3) ◽  
Author(s):  
Monika Bansal ◽  
Ankush Sharma ◽  
Ram Krishan ◽  
Rajesh Kumar ◽  
A. K. Dobriyal
Keyword(s):  
Standard Length ◽  
Morphological Characters ◽  
Head Length ◽  
Body Depth ◽  
Total Length ◽  
Length Standard ◽  
Meristic Counts ◽  
Tor Putitora ◽  
Eye Diameter ◽  
Source Of Information

The morphology of fishes has been the major source of information for taxonomic and evolutionary studies. The present communication deals with the taxonomic analysis of Golden Mahseer- Tor putitora, collected from river Ujh, a tributary of Ravi in District Kathua, (Jammu & Kashmir). The morphological characters are generally divided into two major categories, the morphometric and the meristic. For morphometric studies the parameters considered were: the total length, standard length, head length, pre-dorsal length, pre-ventral length, pre-anal length, caudal length, snout length, eye diameter and maximum body depth. The growth of parameters were studied in relation to three independent variables, i.e., total length, standard length and the head length. Meristic counts of fin rays and fin spines etc. were also studied.

scholarly journals Species Composition and Length-Weight Relationship of Anguillid Eels Habited in Bengkulu Waters, Indonesia

2018 ◽  
Vol 2 (2) ◽  
Author(s):  
Komang Suryati ◽  
Fauziyah Fauziyah ◽  
Ngudiantoro Ngudiantoro
Keyword(s):  
Cluster Analysis ◽  
Morphological Diversity ◽  
Morphometric Parameter ◽  
Growth Trend ◽  
Population Characteristic ◽  
Average Value ◽  
Weight Relationship ◽  
Total Length ◽  
Significant Difference ◽  
Relationship Of

Management of euryhaline species, such as Anguillid eel, is very important. Anguillid eel is an important economic fish which the partly of its life cycle spent in inland waters then migrates into the ocean for spawning. The objective of this study is to identify the morphological diversity and length-weight relationship of Anguillid eels in this province. The total of 148 individuals of elver and adult Anguillid eels were caught was identified using the comparison of ano-dorsal with total length parameter. Cluster analysis was obtained based on measurement of morphometric parameter. The current work used cluster analysis and dendrogram to group the population characteristic of Anguilla eel. It revealed that in the Jenggalu, Kungkai and Manna rivers of Bengkulu province, there are two groups of Anguilla eel with significant difference of ano-dorsal length. The value of the ano-dorsal varied from 2.56 ± 1.54 and 17.78 ± 1.33 for A.bicolor bicolor and A.marmorata, respectively. The length-weight relationships between total length (TL) and weight (W) for Anguilla bicolor and A.marmorata were found to be highly significant (r2 > 0.94, p < 0.001). The average value of 'b' for length and weight were higher than 3, i.e., 3.2677 and 3.4821 in A.bicolor and A.marmorata respectively which indicated a positive allometric growth trend of this species in the studied area.

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