Froese, R. and D. Pauly. Editors. (). FishBase. Macrodon ancylodon (Bloch & Schneider, ). Accessed through: World Register of Marine Species at. Macrodon ancylodon — Overview. Yellow Mouth Salmon Media. Image of Macrodon ancylodon. Macrodon ancylodon Trusted. Creative Commons. O pescada-foguete (Macrodon ancylodon) é uma espécie de pescada que pode ser encontrada da Venezuela à Argentina. Tais animais medem cerca de
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Because of its wide distribution this fish may be subject to geographic isolation and this may have resulted in distinct populations along its coastal range. ADW doesn’t cover all species in the world, nor does it include all the latest scientific information about organisms we describe.
Mol Phylogenet Evol 21 3: Wikiversity 0 entries edit.
In a study of the meristic and morphometric traits of M. J Mol Evol Our analyses showed that the two Macrodon groups consist of populations from areas that are influenced by different surface currents and therefore we can suggest that this is one of the barriers that prevents genetic flow and isolates the Macrodon populations of the tropical and subtropical groups. Correlation between genetic distance and geographic distance. Molecular Evolutionary Genetics Analysis software.
Studies carried out in the tropical and subtropical regions of Brazil have shown that this species has distinct reproduction periods, December and February in the South Juras and Yamagguti, ; Yamaguti, ; Vazzoler, and July-August and October-December in the north Camargo-Zorro, Additional Information Encyclopedia of Life.
IUCN Red List of Threatened Species
Mol Dev Evol Phylogenetic analyses The ancylovon DNA segments studied did not show any indication of saturation in their sequences, so that both could be used in the phylogenetic analyses. Macrodon ancylodon King weakfish Facebook. The occupation of cooler water environments may have caused the development of adaptation mechanisms to these environments and later isolation of tropical and subtropical populations.
Results Nucleotide composition Table 2 shows that 29 different cytochrome b sequences were obtained from 53 M. To investigate differences between king weakfish populations we used the cytochrome b and 16S rRNA genes to characterize M. Comp Applic Biosci 5 3: Wikipedia 10 entries edit. Our results clearly distinguished two genetically different groups which show nucleotide divergence and genetic structuring patterns that strongly suggest they may be different species, disagreeing with the widely accepted traditional taxonomy that accepts only one species of Macrodon in the western Atlantic.
Class Actinopterygii ray-finned fishes.
Wikiquote 0 entries edit. From a commercial point of view, M. According to Brandini et al. World Register of Marine Species.
In the phylogenetic trees Figures 4 and 5the populations cannot be separated because individuals belonging to very distant geographical regions group together.
Twenty-five sites of the bp of the cytochrome b gene and 11 of the bp of the 16S rRNA gene are diagnostic in terms of separating the tropical and subtropical Macrodon groups Figures 2 and 3nucleotide divergence being of the same magnitude as the values detected for intrageneric comparisons in Perciformes. This work was possible with the valuable help of the many people who supplied samples of M.
Conversely, high genetic divergence was observed between the tropical and subtropical groups, and this is also confirmed by the separation of these groups in the phylogenetic trees with the nodes being supported by high bootstrap values Figures 4 and 5. Based on morphometric traits, Yamaguti distinguished four M. The results clearly show two genetically different groups which have nucleotide divergence levels and genetic structuring patterns that suggest they may be different species, disagreeing with the traditional taxonomic system which allocates only one species to the genus Macrodon in the western Atlantic.
Pomacentridae as determined by mitochondrial ribosomal DNA data.
Pescadillo del Rey Spanish. Because of its wide distribution, M. To cite this page: Global Biodiversity Information Facility. Retrieved from ” https: Mol Biol Evol Help us improve the site by taking our survey. Mol Biology Evol 15 Genetic characterization of species of commercial interest is a primary condition for any fishing control policy, the study described in this paper being macrovon first on the molecular characterization of the Zncylodon.
The Animal Diversity Web is an educational resource written largely by and for college mscrodon. Futuyma postulated that low levels of genetic flow and population isolation are important for speciation to take place. The degree of confidence for the groups on the maximum-parsimony tree was evaluated by bootstrap replicates Felsenstein, Several studies have assessed the degree of genetic differentiation of fish populations based on mitochondrial DNA sequences, especially cytochrome b and D-loop region sequences Dawson et al.
Geographic structuring could not be identified in the individual populations which make up the tropical and subtropical Macrodon groups based on the segments of the two genes analyzed because specimens collected from very distant localities presented identical nucleotide sequences.
Integrated Taxonomic Information System. While ADW staff and contributors provide references to books and websites that we believe are reputable, we cannot necessarily endorse the contents of references beyond our control. Macrodon ancylodon specieswiki Macrodon ancylodon. Mol Phylogenet Evol 9 1: Macrpdon based on cytochrome b sequences.
Mol Phylogenet Evol 15 2: There was no perfect geographic structuring of the sampled populations in the clades, as is shown by specimens from one locality grouping with specimens from anclyodon, geographically distant, locality. Similarly, Figure 3 shows the 11 anccylodon sites 4, 19, 30, 35, 93,,of the 16S rRNA gene which differentiate the two Macrodon groups.
The low nucleotide divergence values for the two genes are often observed in closely related taxa, our results with the cytochrome b gene being similar to population macrodpn on fish such as Dicentrarchus labrax Allergruci et al.