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

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.

2021 ◽  
Vol 29 (2) ◽  
pp. 100-107
Author(s):  
Serdar Yedier ◽  
Derya Bostanci ◽  
Nazmi Polat

Abstract The aim of the current study was to determine the length-weight relationship (LWR) and length-length relationship (LLR) with condition factor (K) values for Oxynoemacheilus angorae from the Perşembe Plateau meandering streams in Ordu, Turkey. A total of 65 fish specimens, which were caught with electrofishing gear, were examined. Fish standard length (SL), fork length (FL), total length (TL), and body weight (W) were determined. There were no statistical differences between the measurements of male and female O. angorae specimens; therefore, the female and male specimens were evaluated together in the current study. The LWR equation and determination coefficient of O. angorae were W = 0.014 TL2.7359 (r2 = 0.9659). The 95% confidence interval of the b value for the O. angorae specimens from the Perşembe Plateau meandering streams was 2.7261 to 2.7435. In the present study, it was determined that O. angorae specimens showed negative allometric growth. Calculations of O. angorae TL-SL, TL-FL, and FL-SL relationship equations and determination coefficients were as follows: TL = 0.2091+1.1646 SL, (r2 = 0.986); TL = 0.1341+1.0301 FL (r2 = 0.9914); and FL = 0.0998+1.1261 SL, (r2 = 0.9868), respectively. A new maximum total length was recorded for O. angorae in this study. The average condition factor value of O. angorae was 0.9954. This value could have indicated that this species was encountering some problems in this habitat. The O. angorae parameters determined were the first data reported for the Perşembe Plateau meandering streams in Ordu, Turkey (Middle Black Sea Region).


2021 ◽  
Vol 49 (2) ◽  
pp. 229-241
Author(s):  
Syeda Ismat Ara ◽  
Mohammad Ali Azadi ◽  
Munira Nasiruddin ◽  
Aftab Hossain

A total of 65 specimens of Rhinomugil corsula (Hamilton, 1822), measuring from 8.1 cm to 28.9 cm in total length, collected from the Sitakunda coast of the Bay of Bengal, were used for the morphometric analysis during the period between March 2016 and February 2018. Twenty seven morphometric characters were selected and studied during the investigation period. The regression equations – both arithmetic and logarithmic – between the total length (TL) and 21 morphometric characters, and head length (HL) with five morphometric characters related to the head, were determined. The value of coefficient of correlation ‘r’ for each relationship was calculated and t-test for each ‘r’ value was also done. The relationships of the various measurements of the body with the total length – and head length with the five relevant characters -of R. corsula from the Sitakunda coast of the Bay of Bengal showed linear relationships, which were highly significant (P<0.01). The ranges of ‘b’ values 0.967 to 1.346 in case of the relationships between TL and 21 relevant characters, whereas 0.906 to 1.236 in case of the relationships between HL and 5 relevant characters. These values differ insignificantly (P>0.01) with typical value b=1 indicating isometric relationships among the characters. Bangladesh J. Zool. 49 (2): 229-241, 2021


Author(s):  
Absar Alam ◽  
Narinder Kumar Chadha ◽  
Annam-Pavan Kumar ◽  
Sushant Kumar Chakraborty ◽  
Kripal Datt Joshi ◽  
...  

Oreochromis niloticus (Linnaeus, 1758), an invasive fish species is rapidly spreading in the Gangetic river system. The aim of the study was to identify and confirm its identity at species level by establishing a barcoding reference datasets in the river Yamuna and then to investigate its morphometric, meristic traits and length-weight relationship of O. niloticus from the Allahabad water of the river Yamuna by the examination of 341 fish specimens collected during October 2011 to September 2012. The taxonomic status of O. niloticus (Linnaeus, 1758), in the river Yamuna was assessed using DNA barcode marker COI gene sequences, have clearly identified the O. niloticus species with 100% similarity value with public database. The length-weight relationships were established as W = 0.029486L2.881638 and W = 0.058499L2.661735 for male and female. Differential growth in length-weight between male and female of O. niloticus were significant (p less than 0.05), with a greater slope (b) value for male (2.88) than female (2.66). The t statistics estimated for the regression coefficients (b) were significant at 5% level of significance (p less than 0.05), indicating an allometric growth pattern. The correlation was highest for the standard length and the total length (0.9878) and minimum for caudal peduncle length and total length (0.8022). Fin formula based on the meristic studies can be written as B3, D 15-19/11-15, P14, V 1/5, A 3/8-11 and C16-22.


2020 ◽  
Vol 28 (4) ◽  
pp. 216-224
Author(s):  
Kousar Jan ◽  
Imtiaz Ahmed

Abstract Schizothorax labiatus (McClelland) is considered to be one of the most economically important fish species among Schizothorax spp. A total of twenty-four morphometric and five meristic characters were examined; 18 of the morphometric characters as percentages of total length and four characters as percentages of head length were studied. It was found that the characters of standard length, fork length, pre pelvic length, pre anal length, and pre dorsal length had the highest correlations with total length, whereas dorsal fin height followed by caudal fin height had the lowest correlations. In percentages of head length post orbital length had the highest correlation whereas snout length had the lowest correlation. Overall, the results revealed that all the morphometric characters exhibited linear relationships and depicted significantly (P < 0.05) high degree of correlation, while the meristic characters counted were constant in all sizes of S. labiatus, indicating that they were independent of body size. The study provided basic information that will be useful for fish biologists and researchers in the future management and conservation of this fish species.


Author(s):  
Mohammad Ali Azadi ◽  
ASM Sharifur Rahman

Twenty-two morphometric and nine meristic characters of 280 Gudusia chapra (Total length 30-210mm) and 264 Gonialosa manmina (Total length 40-150 mm), the two important clupeids from the Kaptai lake, were studied during 1996-1997 to detect the plastic and non-plastic characters. Wide and medium range characters are plastic characters and hence are controlled by the environment while the narrow range characters are genetically controlled and non-plastic and hence can be used for differentiation of stock or sub-species. Three different categories of morphometric characters of the two species were recognised, viz., wide range, medium range and narrow range. Wide range morphometric characters varied within the range of 21.47% to 140.62% in the case of G. chapra and 24.04% to 87.19% in the case of G. manmina while the medium range characters varied within the range of 11.76% to 13.75% in the case of G. chapra and 11.55% to 18.92% in the case of G. manmina and less than 10% range characters were designated as narrow range. The relationships between the different morphometric characters (both dependent and independent variables) were found to be linear and in all the cases the relationships were found to be highly significant (P< 0.001). DOI: http://dx.doi.org/10.3329/cujbs.v3i1.13403 The Chittagong Univ. J. B. Sci.,Vol. 3(1&2):21-31, 2008


2021 ◽  
Vol 29 (1) ◽  
pp. 29-34
Author(s):  
Muzamil Sidiq ◽  
Imtiaz Ahmed ◽  
Yahya Bakhtiyar

Abstract Morphometric and meristic characters are very important for the identification of any fish specimen. The present study aims to describe the morphometric and meristic characters of the indigenous fish Crossocheilus diplochilus (Heckel) from Dal Lake. This fish is commonly known as Kashmir latia and is called tether locally. In the present study, the material analyzed was 70 specimens ranging in size from 6.9–13 cm (TL) with a mean length of 10.8 cm and a weight range of 3.2–24.0 g with a mean weight of 10.1 g. The parameters with the highest correlations with total length were standard length and fork length at 0.983 and 0.989, respectively. Correlation analysis showed that all morphometric characters changed proportionally as total length increased. The meristic counts analyzed in the present study remained constant in fish of different sizes indicating that they are independent of body size. The study of morphometric characters is very important to determine the growth rate of these fish, which, in turn, is required to properly manage its populations.


2019 ◽  
Vol 1 ◽  
pp. 82-87
Author(s):  
O O Jacob ◽  
S G Solomon ◽  
J O Cheikyula

The study investigated the morphometric and meristic characterization of Common carp (Cyprinus carpio) sourced from Jos Bauchi and Ibadan (Nigeria). In comparing the morphometric and meristic characters one hundred and eighty (180) adult Common carp, Cyprinus carpio were used. Twenty four (24) morphometric and six (6) meristic characters were studied. Measurements of the morphometric features were taken to the nearest centimeter by means of a measuring board, measuring rule, pair of dividers for the length, while the weight was taken by means of a weighing scale (salter scale) to the nearest gram. ANOVA, multivariate technique principal component analysis (PCA) and discriminant function analysis were also applied to the transformed morphometric data to; classify the fish into one or several mutually exclusive groups. The Morphometric study indicated that seven parameters did not differ significantly (p>0.05) between Jos (male and female), and Bauchi (male and Female) strains. The parameters are the body depth, caudal fin length, pectoral fin height, standard weight, pre dorsal distance, eye diameter and body weight. In the meristic count, only the dorsal fin spine did not differ significantly (p >0.05) among the Jos, Bauchi, and Ibadan strains in all sexes. The study revealed that there was a genetic distance between male and female Carp sourced from Ibadan and that of Jos and Bauchi, where as male and female Carp from Jos and Bauchi showed genetic closeness.


2019 ◽  
Vol 41.3 ◽  
pp. 7029-7041
Author(s):  
Ahou Nicole YOBOUE ◽  
Koffi Charles BOUSSOU ◽  
Kouassi Sylvain KONAN ◽  
Koffi Félix KONAN ◽  
Abouo Béatrice ADEPO-GOURENE

1 ABSTRACT The phenotypic characterization of four populations of Oreochromis niloticus (Linnaeus, 1758) from the Haut-Sassandra region was carried out using 147 specimens. Among them, 39 were from the natural environment (Sassandra River) and 108 from three fish farms in the town of Daloa. The body weight, sixteen (16) metric characters and fifteen (15) meristic characters recorded on each individual made it possible to analyze the phenotypic variability of the four populations. Twenty-eight (28) on the 31 morphometric characters studied differentiated populations (P <0.001). Based on these 28 characters, Principal Correspondence Analysis (PCA) and Hierarchical Classification Analysis (HCA) grouped the individuals into two groups, a group consisting of Guessabo and PK 12(Kilometer 12 fish farm located at the end of the city of Daloa) specimens and the other group consisting of APDRACI and Quartier Manioc (two fish farms in the city) individuals. Six morphometric characters (PrAL. IOD. LDF. DAL. AFL and SsL) were the most relevant in the discrimination of these two groups. Discriminant factor analysis (DFA) has also classified these populations into two clusters identical to those of the PCA and the HCA. The brood stocks of PK 12 farm is morphologically identical to specimens of the natural environment (Guessabo). The waters of the PK 12 farm have similar characteristics to the natural environment. The PK 12 farm compared to the others (APDRACI and Quartier Manioc) would be better managed.


2019 ◽  
Vol 66 (2) ◽  
Author(s):  
H.B. Pawar ◽  
S.V. Sanaye ◽  
R.A. Sreepada ◽  
B.S. Ingole

Eighteen morphometric and five meristic characters of the yellow seahorse, Hippocampus kuda inhabiting the coastal waters of Ratnagiri, central west coast of India, were studied. Morphometric/numerical analysis confirmed the identity of the species from Ratnagiri coastal waters as Hippocampus Kuda Bleeker, 1852. A negative allometric relationship was observed in both genders of H. kuda. The estimated weight-length relationships  (WLR) for male and female specimens, respectively were, W=0.0034 SL2.8533 and W=0.0078 SL2.5253 (r2>0.95). The biological information on morphometric and meristic characters, WLR and length-length relationship (LLR) provided in this study would be helpful for conservation and management of this vulnerable seahorse species.


Jurnal Biota ◽  
1970 ◽  
Vol 7 (2) ◽  
pp. 118-128
Author(s):  
Adenia Arih Utarini ◽  
Suhestri Suryaningsih ◽  
Agus Nuryanto

Pennahia anea is among of the demersal fish landed at Asemdoyong Fish Auction Centre, Pemalang. P. anea doesn't show sexual dimorphism, so that other characters are needed to differentiate male and female individuals, i.e. truss morphometric and meristic characters. Previous studies have shown that truss morphometric and meristic can differentiate between male and female individuals. This study aims to describe the morphometric and meristic truss characters and determine the truss morphometrically and meristic characters that distinguish between males and females of Pennahia anea. The research used a survey method with a purposive random sampling technique. Male and female individuals of P. anea were examined based on their meristic and truss morphometric characters. The data were analyzed statistically using Mann Whitney non-parametric test. The result proved that male and female were significantly different in seven out of the 31 truss distances. Male individuals had a larger size than female individuals in three truss distances. In contrast, the male had a smaller size than the female individuals in four out of seven truss distances that distinguish both sexualities. The soft fin radius of the ventral fin was significantly different between male and female of P. anea. It could be concluded that male and female individuals of Pennahia anea have different truss distances and meristic characters with seven truss distances and one meristic character are different


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