Multivariate Morphometrics in Aquaculture: A Case Study of Six Stocks of the Common Carp (<i>Cyprinus carpio</i>) from Italy

Corti, Marco; Thorpe, Roger S.; Sola, Luciana; Sbordoni, Valerio; Cataudella, Stefano

doi:10.1139/f88-183

Cited by 41 publications

(27 citation statements)

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“…The development of image analysis systems has facilitated progress and diversification of morphometric methods and expands the potential for using morphometry as a tool for stock identification (Cadrin and Friedland 1999). Truss network is much more powerful in identifying intraspecific groups with different life history stages according to shape variation than manual measurements (Corti et al 1988;Strauss and Bookstein 1982;Bookstein 1982).…”

Section: Introductionmentioning

confidence: 99%

RETRACTED ARTICLE: Advancements in morphometric differentiation: a review on stock identification among fish populations

Dwivedi

Dubey

2012

Rev Fish Biol Fisheries

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Identifying intraspecific units or stocks of a species with unique morphological characteristics has now become more powerful and enables a better management of these subunits of species and ensures better management and conservation of the fishery resources. These morphometric characteristics typically show ontogenic changes in body shape particularly rapid at key life history stages. For about the past 50 years, traditional multivariate morphometrics, accounting for variation in size and shape, have successfully discriminated many fish stocks throughout the world, however, they have always been criticized because of several biases and weaknesses. To contribute to the advancement of fish stock identification, a new technology based on ''Truss Network System'' has emerged as a new tool with more effective strategies for descriptions of shape, better data collection and diversified analytical tools. In the present communication, recent developments made in the discipline of morphometric differentiation in body shape among fish populations are briefly reviewed and it appears that the truss based techniques has now been proved to be more effective than manual distance measurement for the management of fishery resources throughout the world. However in India, these techniques have not been commonly applied in fisheries research to discriminate fish stocks. The study expands the potential through various advancements in morphometric differentiation analysis which could serve as a tool for stock identification among fish populations.

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Section: Introductionmentioning

confidence: 99%

RETRACTED ARTICLE: Advancements in morphometric differentiation: a review on stock identification among fish populations

Dwivedi

Dubey

2012

Rev Fish Biol Fisheries

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“…Tench exhibited a more fusiform profile if compared with carp (Corti et al 1988;Loy et al 1996) and the geometric morphometric approach seemed to be a suitable tool to visualize tench shape changes because homologous landmarks bore information on the geometry of forms as previously demonstrated in other fish species (Loy et al 1998). In our samples, condition coefficient ranged from 1.24 to 1.29, without any significant difference among the size classes considered.…”

Section: Resultsmentioning

confidence: 79%

Morphometry, slaughtering performances, chemical and fatty acid composition of the protected designation of origin “Golden hump tench of Poirino highland” product

Gasco

Gai

Lussiana

et al. 2009

Rev Fish Biol Fisheries

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One hundred and thirty-two tench were photographed and a total of 13 landmarks were identified. Fish were grouped in four size classes on length basis and different shape descriptors were computed. Landmark configurations were superimposed. Size was computed as centroid size. The roundness coefficient, the log(partial area)/log(total area) ratio and the condition coefficient were calculated. Slaughtering performances and fillet composition analyses were performed. Shape variability was found primarily on cephalic area while head and tail regions were more homogeneous. A high correlation between centroid size and total length was found as well as a higher increase of the partial area than the total area justifying the hump shape of this tench. The scatter of relative warp 1 scores and centroid size for the four size classes has showed, with the increase of the length, a larger number of specimens that were characterised by a deep profile. Geometric morphometric approach produced a valuable tool in defining morphospaces for tench. Condition coefficient ranged from 1.24 to 1.29, without any significant difference among the size classes. Slaughtering performance resulted in agreement with those reported by other authors while VSI was lower. In fillets, the fatty acid profile was composed of about 30% of saturated fatty acids, 50% of monounsaturated fatty acids and 20% of polyunsaturated fatty acids with about 8% of docosahexaenoic acid. Atherogenic and thrombogenic indices were 0.58 and 0.42, respectively. Both n6/n3 and polyunsaturated/saturated fatty acids ratios were in accordance with value recommended for a healthy nutrition giving positive evaluation of the nutritional qualities of tench.

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“…Corti et al (1988) By comparing RO with the ratio log(PA)/ log(TA) one may suggest that the relatively smaller PA of the 20°C sample is compensated by a more rounded profile of the ventral part of the body (Figs 4a, 4b). Roundness is also related to the geometric morphometrics results: it can be noted that results based on RO (20°C sample more similar to 25°C sample than to the 30°C sample) summarize the ordering of the specimen along the canonical axis 1 (Fig.…”

Section: Discussionmentioning

confidence: 99%

“…Problems such as identification of fish larvae (Froese, 1989;Edwards & Morse, 199.5) A. Lay, E. Ciccotti, L. Fermcci, S. Cataudella estimating stock composition in mixed stock fisheries (Fournier et al, 1984), wild stock characterization (Claytor and MacCrimmon, 1988;Corti et al, 1988), discrimination among growth patterns of reared populations (Loy et al, 1995) and monitoring of the larval quality on the basis of the external morphological traits Marino et cd, 1993), all could take advantage of the integration of morphometric tools and automated systems in defining standard procedures.…”

Section: Introductionmentioning

confidence: 99%

An application of automated feature extraction and geometric morphometrics: Temperature-related changes in body form of Cyprinus carpio juveniles

Loy

Ciccotti

Ferrucci

et al. 1996

Aquacultural Engineering

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Automated image acquisition and geometric morphometric analysis are applied to the study of morphological ecophenotypism in the fry of carp, Cyprinus carpio, of the same progeny reared in aquaria varying the water temperature. The image analysis procedure described here provides an in vivo method of detection and the extraction of simple features: in this sense it can be considered a powerful tool to obtain a preliminary insight of the occum'ng shape changes and the acquisition of large amounts of data without sacrifiing fishes. On the other hand, the recently established geometric morphometrics offers a detailed description of shape differences and growth trends in the external morphologies by analysing the geometric properties of the form. Thus, the approach here described could be applied to a wide range of fisheries topics.

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Multivariate Morphometrics in Aquaculture: A Case Study of Six Stocks of the Common Carp (Cyprinus carpio) from Italy

Cited by 41 publications

References 0 publications

RETRACTED ARTICLE: Advancements in morphometric differentiation: a review on stock identification among fish populations

RETRACTED ARTICLE: Advancements in morphometric differentiation: a review on stock identification among fish populations

Morphometry, slaughtering performances, chemical and fatty acid composition of the protected designation of origin “Golden hump tench of Poirino highland” product

An application of automated feature extraction and geometric morphometrics: Temperature-related changes in body form of Cyprinus carpio juveniles

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