Morphometric and meristic characters of fish pdf lundin

For meristic counts seven meristic, characters total number of scutes, pre pelvic scutes, post. Morphometric measurement of fishes points considered while measuring a fish with definition are in the slide. The earliest analyses of morphometricvariables for stock identification were univariatecomparisons, but were soon followed by bivariateanalyses of relative growth to detect. Morphometric studies are based on a set of measurements which represent size and shape variation and are continuous data, in contrast to meristic characters, which are discrete or noncontinous data. The total length was recorded as 79 mm to 220 mm whereas, the mean value of head length in percentage of total length was found to be 25. Data on 16 morphometric and meristic characters of 489 nemipterus japonicus were analyzed.

Trussmorphometric and meristic characters of kelabau fish. In addition, taxonomy study of fishes also require characteristics and traits of the body including meristic details. In total, 9 meristic characters dorsal, pectoral, pelvic. Winans and others published using morphometric and meristic characters for identifying stock of fish find, read and cite all the research you need on researchgate. Advances in morphometric identification of fishery stocks.

Morphometric and meristic characteristics of clarias. Caspian sea basin were analyzed using 31 morphometric and 7 meristic characters in order to investigate the hypothesis differentiation and clarify its taxonomic status. A morphometric and meristic investigation of lusitanian. Fish populations are recognized by using morphological measurements 68. Morphometric and meristic characteristics of birdi loach. Morphometric analyses are commonly performed on organisms, and are useful in analyzing their fossil record, the impact of mutations on shape, developmental changes in form, covariances between. A total of 1 kelabau from kampar river, 58 fish from the siak river and84 fishfrom the rokan river was used in this study. Feb 18, 2010 thus, the meristic characters were not adjusted for size differences. Comparative analysis of the morphometric and meristic. The historical development of stock identificationmethods has paralleled the advancement of morphometrictechniques. Each character has two or more states, and the states do not grade into one another. The premaxillary bone can have 2, 3, or 4 teeth, not 2.

Meristics is an area of ichthyology which relates to counting quantitative features of fish, such as the number of fins or scales. Pdf a study on the morphometric and meristic characters. Morphometric and meristic characters are generally used for fish identification. Morphometrics from greek morphe, shape, form, and metria, measurement or morphometry refers to the quantitative analysis of form, a concept that encompasses size and shape. The comparisons of the various morphometric measurements are shown in table for type a and i b. This procedure resulted in the elimination of 15 specimens from the analysis tables 1 and 3. The general morphometric and meristic characters are very useful characters for classification7, 1115, however there is a scope to explore the alternate characters, which can substantiate the morphological and meristic. Morphometric and meristic fish body for measurement of landmark distances of the characters of fish are the measurable and countable species. Meristic and morphometric traits are used to identify fish a meristic is a countable trait, such as number of gill rakers or number of dorsal fin spines. Methods all samples were taken between the gulf of st. Morphometric study of fresh water carps fishes of shahdol. Chapter i geographical variation of morphometric and meristic.

Morphometric and meristic characteristics of dominant fishes. Both morphometric and meristic characters are mostly used to identify variety of fish species turan et al. Here we investigate other morphometric and meristic characters that can also be used to differentiate these two species. Morphometric relationships among the clariid fishes of the. The watershed of the mhadei river is an integral part of the mandovi river basin fig. All the fishes have the following common featu res. The typea fish were found larger in size than that of type b. In contrast significant correlations were observed between size and morphometric characters, and allometric effects may accentuate such differences. Here we report the comparison of manual measurements using proma 150d digital calipers and computerassisted image analysis in lucia software to evaluate the accuracy of both methods and the suitability of digital images for exploration of fish morphology. Morphometric characters are continuous characters describing aspects of body shape.

Morphometric characters and meristic counts of black chin. Morphometric and meristic characters were recorded from the left lateral side of each specimen using metric rulers mm and stereomicroscopes. On the basis of meristic and morphometric characteristics, the fish was identified as tor. Nov 07, 2016 morphometric measurement of fishes points considered while measuring a fish with definition are in the slide. As meristic characteristics, kelp grouper have more number of anal fin rays than other fish, red spotted grouper have more number of dorsal soft rays than other. The morphometric characters measured are the standard length and head length, as described by lkusemiju 1975. Traditionally, the fish species are identified on the basis of morphological and meristic characters. Department of zoology, vidya bharati the freshwater fish which has been selected for present study fishes were collected from the local wadali lake of amravati region. Landmarkbased morphometric and meristic analysis of. Landmarks refer to some arbitrarily selected points on a fish s body, and with the help of these points, the individual fish shape can be analyzed.

Fish samples were randomly collected from the river nile around kreima by gill nets of mesh size of 2x2 and 3x3 cm or were purchased from the operating fisher plate 14. Types of morphological characters a biologist studying morphological variation will make counts of elements in or along specific body parts and measure distances between distinguishing landmarks. Average linear morphometric measurements of pomadasys maculatus have been given in table 2. Pdf study of some morphometric and meristic characters of. Morphometric and meristic variation in argentine hake ices. Twelve morphometric characters and body weights of the fish were measured to an accuracy of 0. Pdf study of some morphometric and meristic characters. Comparison of manual measurements and computerassisted image. International research journal of biological sciences. Comparison of meristic and morphometric traits showed the ability of the morphometric discriminant function to correctly classify individuals, in agreement with the results obtained by discriminant function analyses with other fish species meng and stocker, 1984. Morphometric and meristic characters of fishes jayaprakash, a a 1989 morphometric and meristic characters of fishes. Express morphometric measurements as a percentage of standard length mm see. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Morphological, meristic characteristics and mtdna analysis of.

The study on morphometric characters in fishes is important because they can. Morphometric analyses are commonly performed on organisms, and are useful in analyzing their fossil record, the impact of mutations on shape. No sexual dimorphism was found in pomadasys maculatus. Landmarkbased morphometric and meristic analysis of serranidae. Eighteen morphometric characters of 20 specimens of prussian carp.

Introduction the morphometric analysis of fish is an important key in the study of biology of fish. Some arbitrarily selected points on a fish body known as landmarks help the individual fish shape to be analyzed. Morphometric and meristic characters are important parameter to distinguish one fish to other on the basis of body traits. Studies on meristic counts and morphometric measurements.

Morphometric measurement of fishes linkedin slideshare. Lengthweight relationship, condition factor and morphometry. Pdf using morphometric and meristic characters for. Morphometric characters of freshwater fish cyprinus sp. Meristic characters encompass any anatomical feature external or internal that can be counted. Landmarkbased morphometric and meristic analysis in response to. Oct 17, 2014 meristic and morphometric traits are used to identify fish a meristic is a countable trait, such as number of gill rakers or number of dorsal fin spines. Morphometric and meristic characters of fish are the measurable or.

Morphometric characteristic is the character illustrating the body shape, while meristic character counted number, series or structure. Meristics and morphometrics fishionary a blog about fish. Morphometric characters and meristic counts of a fish. Taxonomic analysis involved morphometric characters and 7 meristic ones.

A simple yet useful criterion based on external markings andor number of dorsal spines is currently used to differentiate two congeneric archer fish species toxotes chatareus and toxotes jaculatrix. Morphometric and meristic variation in two congeneric. Quantitative morphometric characters and meristic characters used for differentiation analysis among the four mugilid species of karachi coast. Meristic characters are the number of discrete, serially repeated, countable structures that are fixed in embryos or larvae. All the meristic characters remained constant with increasing body length. Therefore, transformation of absolute measurements to sizeindependent shape characters was performed before the final analysis. Observation on minute meristic characters such as spine count and. The sample size, mean tl, and weight are presented in table 1. Geographic variation in morphometry has been used todiscriminate local forms of fish for over a century. Landmarks refer to some arbitrarily selected points on a fishs body and with the help of these points, the individual fish body shape can be analyzed. Multivariate analysis of morphometric and meristic characters is a standard tool for.

Monthly sample collection of crossochelius latius latius was conducted for the study of morphometric characters and meristic counts. Morphometric characters and meristic count of a fish, garra gotyla gotyla gray have been studied from ranjit sagar wetland. Introduction fish identification and classification sometimes help fish breeders to determine if samples are from different populations and to determine the relative contribution of stocks to a mixed fishery 1. Morphometric and meristic variation in european hake. Meristics and morphometrics a blog about fish words. Morphometric measurements and meristic characters were determined on the specimens to ascertain the possibility of morphological and meristic diversity among them. The material used to study meristic and morphometric characters consisted of 30 xanthic morph individuals collected from the laboratory culture, and one albino individual from the heated water aquaculture. Morphometric and meristic variation in two congeneric archer. Whereas significant differences were found in some morphometric and meristic characters, the ranges overlapped somewhat in all of the characters examined between the two groups. Among the samples, 10 different variants have been identified depending upon their morphological differences.

Morphometric variation among four populations of shemaya. Meristic, morphometrics and lengthweight relationship of. Each of the other 14 morphometric characters showed a linear relationship with total length when. The morphometric character showed a gradual increase with increase in body length. Morphometric and meristic analysis can thus be a first step in investigating the stock structure of species with large population sizes. In total, 9 meristic characters dorsal, pectoral, pelvic, anal, and caudal fin rays, lateral line scales, scales above and below the lateral line, and vertebra counts were analyzed. A meristic countable trait can be used to describe a particular species of fish, or used to identify an unknown species. Collection of fish and identification fish were caught by handlines and longlines with baited hooks, scoop nets and gills nets and transported in ice coolled boxes to the laboratory at tafiri mwanza centre for identification, morphometric measurements and meristic counts.

In the present study the average total length of females were 152. Morphometric and meristic characters of fishes cmfri. Study of some morphometric and meristic characters of. Morphometric characters and meristic counts of a fish, garra. M adj ml s l o, where m is the original measurement, m adj is the sizeadjusted measurement, l o is the sl standard length of the fish, and l s is the overall mean of the sl for all fish from all samples. Morphometric and meristic characteristics were compared between two genetically divergent groups oflethenteron reissneri, collected from hokkaido and honshu islands, japan. Study of some morphometric and meristic characters of striped piggy fish, pomadasys stridens forsskal, 1775 from karachi coast, pakistan article pdf available january 2014 with 259 reads. Morphometric characters of fish are the measurable characters common to all fishes. The morphometric relationships between various body parts of fish can be used to assess the well being of individuals and to determine possible difference between. This work is restricted to morphometric and meristic characters. Comparative survey of some morphometric and meristic.

Zaheer khan, study of some morphometric and meristic characters of saddle grunt fish, pomadasys maculatus bloch, 1793, off karachi coast, pakistan. Landmarkbased morphometric and meristic variations in. The earliest analyses of morphometricvariables for stock identification were univariatecomparisons, but were soon followed by bivariateanalyses of relative. Ponderal index or condition factor or the fatness k was worked out to assess. Meristic traits are often described in a shorthand notation called a meristic formula meristic characters are the countable structures. Univariate analysis of variance of 162 adult specimens showed significant differences among the means of the five studied groups for 14 standardized morphometric. The morphometric and meristic characters chosen ware those which had in the past been found to have exhibited significant differences. This study has demonstrated that both morphometric. Fish species were identified based on phenotypic characteristics 2 4 9. Study of some morphometric and meristic characters of saddle. Classification success of species within the gila robusta.

Different meristic counts and morphometric measurements of different parameters were studied. The morphometric characters are classified into genetically narrow range, intermediate moderate range and environmentally vast range controlled characters 5. Morphometric characters and meristic count of a fish, crossochelius latius latius hamiltonbuchanan have been studied from ranjit sagar wetland. Morphological variations of tunisian lithognathus mormyrus populations were investigated using 41 morphometric measurements 27 truss elements and 14 traditional measurements and eight meristic characters collected from ten marine and lagoon samples. Six meristic and foul morphometric characters were chosen for statistical analysis. Detail studies on the meristic, morphometric characteristic and lengthweight relationship of a. The purpose of this study was to understand the morphometric and the meristic characters of the kelabau fish from the siak, kampar, and rokan river populations that could be used as an initial step forconservation. Morphometric characters of freshwater fish cyprinus sp collected from river jhelum, kashmir manzoor a bhat noor mohammad shaista masarat department of zoology, s. This fish is important as forage for commercial fishes and used as bait and dried cat food ivantsoff and crowley, 2000. Morphometric measuremens and meristic counts for each sample were recorded table 1. Characters acronyms morphometric characters total length tl. Quantitative morphometric analysis facilitates understanding of the drainage development, surface runoff generation, infiltration capacity of the ground and groundwater potential.

Landmarkbased morphometric and meristic variations of. Monthly sample collection of garra gotyla gotyla was conducted for the study of morphometric characters and meristic counts. Analysis of phenotypic variation in morphometric characters or meristic counts remains the most commonly used method to delineate stocks of fish despite the advent of techniques which directly examines biochemical or molecular genetic variation, these conventional methods continues to have an important role in stock identification even to date 5. Taxonomic differentiation of goatfishes familymullidae. Such selected morphometric characters were the total length tl, depth at dorsal origin dp, head length hl, thickness of body th, eye diameter ed and caudal peduncle length cpl. In morphometry of pomadasys maculatus, the total length was recorded as 79 mm to 220 mm while mean total length was 162.

Morphometric and meristic differences between two types of. Morphometric characters of botia birdi in accordance with percent total length and head length of fish and correlation of morphometric traits with total length from the poonch river. A landmark is a point of correspondence on an object that matches between and within populations. Comparative survey of morphometric and meristic studies of.

Morphometric measurements, meristic counts, and molecular. Morphometric and meristic characteristics of two groups of. Canadian journal of fisheries and aquatic sciences, 1993, 509. Morphological identification is as follows bailey rg. Morphometric and meristic characters of fish are the measurable and countable characters, respectively common to all fishes.

Morphometric and meristic characters of fishes cmfri repository. Study area ranjit sagar wetland 320 26 33 n and 750 43 43 e is situated on the ravi river near pathankot city, punjab india. In fish, the major characters used for description and identification are descriptive, referring to distinguishable characters e. Once captured, specimens were immediately frozen with the aim of preserving the best conditions for their later laboratory analysis. Morphomertic and meristic characters though ranged from genetic variability but wide influences with rearing.

Morphometric analysis a tool to identify the different. Morphometric and meristic characteristics of hybrid. Morphological variation in fish have been cited by various authors for different species of fishes but no report is available on the morphometric and meristic. Summer institute in recent advances on the study of marine fish eggs and larvae, 14 june 3 july 1989, kochi. Chapter i geographical variation of morphometric and. Morphological variations of striped seabream, lithognathus. Morphometrics and meristics biol 426l ichthyology lab. Morphometrics examines the size and shape using a measurable trait, such as standard length or wet weight, which can be gauged as a length, mass, angle or ratio of other measurements. In laboratory, 31 morphometric and 8 meristic characters of each fish sample were made in the present study see table 1.