| Title |
Corynosoma australe Johnston, 1937 and C. cetaceum Johnston & Best, 1942 (Acanthocephala: Polymorphidae) from marine mammals and fishes in Argentinian waters: allozyme markers and taxonomic status
|
|---|---|
| Published in |
Systematic Parasitology, June 2005
|
| DOI | 10.1007/s11230-005-3131-0 |
| Pubmed ID | |
| Authors |
Norma H. Sardella, Simonetta Mattiucci, Juan T. Timi, Ricardo O. Bastida, Diego H. Rodríguez, Giuseppe Nascetti |
| Abstract |
Genetic and morphological studies were carried out on acanthocephalans belonging to Corynosoma Lühe, 1904 and referable to the species C. cetaceum Johnston & Best, 1942 and C. australe Johnston, 1937, which were recovered from both definitive and intermediate hosts in Argentinian waters. The aims were to estimate the level of genetic differentiation between the two taxa at any stage of their life-cycle, to provide genetic (allozyme) markers for their recognition and to analyse the systematic status of both taxa. Acanthocephalans were collected from the stomach and intestine of Arctocephalus australis (Zimmerman), the intestine of Mirounga leonina (Linnaeus) and the stomach of Pontoporia blainvillei Gervais & D'Orbigny (definitive hosts) in Argentinian waters. Alternative alleles at all the 13 enzymatic loci studied were observed for C. australe and C. cetaceum. The specimens from the stomach of both P. blainvillei and A. australis were identified, on the basis of the great number of diagnostic loci found, as C. cetaceum; those from intestine of both A. australis and M. leonina as C. australe. A high level of genetic differentiation (D(Nei)=infinity: I(Nei)=0.00) between the two taxa was found, suggesting a generic distinction between the two species. Cystacanths of the two species from the body-cavity of the fish Cynoscion guatucupa (Cuvier) collected from the same geographical area were identified genetically. Morphological patterns, such as the number of hooks and hook rows on the proboscis, the distribution of somatic and genital armature, and other morphometric and meristic differences, in addition to ecological data, enabled the identification of these two species at cystacanth, juvenile and adult stages. However, a number of morphological and morphometric features of the Argentinian material were different to those of C. australe and C. cetaceum described from other regions of the world. |
Mendeley readers
The data shown below were compiled from readership statistics for 76 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Brazil | 3 | 4% |
| United States | 2 | 3% |
| Italy | 1 | 1% |
| Uruguay | 1 | 1% |
| South Africa | 1 | 1% |
| Chile | 1 | 1% |
| Argentina | 1 | 1% |
| Mexico | 1 | 1% |
| Unknown | 65 | 86% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Researcher | 18 | 24% |
| Student > Ph. D. Student | 11 | 14% |
| Student > Bachelor | 9 | 12% |
| Student > Doctoral Student | 7 | 9% |
| Student > Master | 6 | 8% |
| Other | 17 | 22% |
| Unknown | 8 | 11% |
| Readers by discipline | Count | As % |
|---|---|---|
| Agricultural and Biological Sciences | 48 | 63% |
| Environmental Science | 8 | 11% |
| Medicine and Dentistry | 3 | 4% |
| Biochemistry, Genetics and Molecular Biology | 3 | 4% |
| Veterinary Science and Veterinary Medicine | 2 | 3% |
| Other | 4 | 5% |
| Unknown | 8 | 11% |
Attention Score in Context
This research output has an Altmetric Attention Score of 8. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 20 June 2012.
All research outputs
#3,943,724
of 22,694,633 outputs
Outputs from Systematic Parasitology
#86
of 731 outputs
Outputs of similar age
#9,021
of 57,168 outputs
Outputs of similar age from Systematic Parasitology
#3
of 5 outputs
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So far Altmetric has tracked 731 research outputs from this source. They receive a mean Attention Score of 3.5. This one has done well, scoring higher than 87% of its peers.
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