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| Registros recuperados: 12 | |
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| Jerez, B.; Hernández, D.R.; Giussi, A.R.; Malaspina, A.M.. |
| To determine the existence of different population units of longtail hake (Macruronus magellanicus) of the Argentine Sea, the meristic and morphometric characters of 861 specimens from two different areas were studied measuring 24 body distances with the landmark methods. Besides, the relation among weight, width and thickness of 806 pairs of sagittae otoliths as a function of length and sex of individuals was analyzed. Using the General Linear Model, the Principal Component Analysis and the Multivariate Analysis of Variance the fitted morphometric variables, the meristic characters and their relation to the Area and Sex factors were assessed. The variability observed does not show any conclusive evidence about the existence of more than one stock in the... |
| Tipo: Journal Contribution |
Palavras-chave: Stock identification; Meristic counts; Morphometry; Otoliths. |
| Ano: 2013 |
URL: http://hdl.handle.net/1834/5490 |
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| Hansen, J.E.. |
| Collete and Chao (1975) reviewed the systematic and morphology of the Genus Sarda and relatives ((Tribe Sardini), including into their analysis a few S.sarda from the SW Atlantic. Before that, Demir (1964)dealt with the meristic data of the same species from the Black Sea. This paper in concerned with the featuring of the bonito caught in Argentina, from both a morphometric and a meristic point of view. The study made the differences reported by Collette and Chao (op.cit.)among W and E S.sarda populations to be more conspicuous, because our samples had even lower values han those from the NW. |
| Tipo: Journal Contribution |
Palavras-chave: Meristic counts; Morphometry. |
| Ano: 1988 |
URL: http://hdl.handle.net/1834/1966 |
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| Derisio, C.M.. |
| En el Atlántico Suroccidental, el orden Pleuronectiformes se halla representado por más de 20 especies que se distribuyen principalmente entre los 34° y 47° S. El objetivo de este trabajo fue describir las características morfológicas de los estadios larvalcs de Etropus longimanus y Symphurus trewavasae, y de los juveniles de algunas especies de la familia Paralichthyidae (Paralichthys orbignyanus, P. isosceles, Xystreurys rasile y E. longimanus) y Cynoglossidae (S. jenynsi y S. trewavasae) presentes en el Mar Argentino, aportando herramientas diagnósticas que permitan diferenciar las especies de juveniles entre sí y los diferentes estadios larvales en una mIsma espeCIe.Los ejemplares estudiados provInieron de campañas de investigación desarrol1ádas por el... |
| Tipo: Theses and Dissertations |
Palavras-chave: Meristic counts; Morphometry; Animal morphology; Animal morphology; Http://aims.fao.org/aos/agrovoc/c_421. |
| Ano: 2004 |
URL: http://hdl.handle.net/1834/3868 |
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| Ratti, M.M.. |
| The argentine anchovy (E.anchoita)shows a distributional area between 35° and 47°30' on the continental shelf off Argentina. This paper deals with some meristic and morphometric characters in order to test their power in separating different stocks. Those largely scattered distributions of morphologic features, which had been already pointed out other authors, make difficult to separate different stocks of this species on this basis. |
| Tipo: Journal Contribution |
Palavras-chave: Meristic counts; Stock identification. |
| Ano: 1986 |
URL: http://hdl.handle.net/1834/2026 |
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| Sabadin, D.. |
| El conocer la escala espacial y temporal de la variación fenotípica y genética en las especies marinas es fundamental para el entendimiento de los procesos ecológicos y evolutivos que influyen sobre la biodiversidad, proveyendo un marco explicativo para la conservación de las poblaciones de peces. La pescadilla de red (Cynoscion guatucupa, Actinopterygii, Sciaenidae), es un pez demersal, que tiene en Sudamérica una amplia distribución latitudinal, abarcando desde las costas de Río de Janeiro (Brasil) hasta las costas de la provincia de Chubut (Argentina). Habita zonas costeras y parte de la plataforma continental, en aguas marinas y estuarinas, y es la segunda, en importancia comercial de las especies costeras. La finalidad de este trabajo es efectuar un... |
| Tipo: Theses and Dissertations |
Palavras-chave: Morphometry; Genetics; Meristic counts; Genetics; Http://aims.fao.org/aos/agrovoc/c_3222. |
| Ano: 2009 |
URL: http://hdl.handle.net/1834/3586 |
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| Pineda, S.E.; Hernandez, D.R.; Brunetti, N.E.; Jerez, B.. |
| Morphological characters of two loliginid squids, Loligo gahi and Loligo sanpaulensis, in the SW Atlantic region off Argentina were studied to obtain a diagnostic criterion for their identification. Emphasis was placed on the taxonomic characters suitable to identify individuals in the whole size range. Considering the uncertainty associated to the correct identification of juveniles, their taxonomic status was confirmed using electrophoretic studies. Discrimination between species based on morphological characters proved to be more effective than meristic counts. A discriminant function that allows an easy separation of the two species is presented. The function, composed of two indices: fin width mantle length (FW/ML)and gladius width mantle length... |
| Tipo: Journal Contribution |
Palavras-chave: Meristic counts; Morphometry; Electrophoresis; Electrophoresis; Http://aims.fao.org/aos/agrovoc/c_2523. |
| Ano: 2002 |
URL: http://hdl.handle.net/1834/1583 |
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| Pacheco Tack, R.; Cousseau, M.B.. |
| The aim of this paper is to discuss the validity of the taxonomic status formerly assigned to the rough scad inhabiting shelf waters off Buenos Aires Province, Argentina. Until recently the species had been considered, mainly by Argentine authors, as Trachurus picturatus australis, on the basis of a description by Nani (1950). Other authors, however, consider that the only valid species for the West Atlantic is Trachurus lathami. In general terms, there references are based on rather scarce material for this region. In this paper, we compare meristic and morphometric data from 160 specimens collected off Mar del Plata. Statistical analysis of the characteristics lead us to conclude that the valid scientific name of the Argentine rough scad is Trachurus... |
| Tipo: Journal Contribution |
Palavras-chave: Morphometry; Meristic counts; Taxonomy; Taxonomy; Http://aims.fao.org/aos/agrovoc/c_7631. |
| Ano: 1994 |
URL: http://hdl.handle.net/1834/1934 |
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| Registros recuperados: 12 | |
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