|
|
|
|
|
| Triantaphyllidis, G.; Criel, G.R.J.; Abatzopoulos, T.J.; Sorgeloos, P.. |
| A detailed morphological and allometrical study was performed with adult males and females of eleven bisexual populations of brine shrimp <i>Artemia</i> . Multivariate procedures, discriminant and cluster analysis, allowed to separate and group together populations which exhibit great genetic similarities. The eleven populations studied form four distinct groups: the <i>A. franciscana</i> group, the <i>A. tunisiana</i> group, the <i>A. urminiana</i> group and a broader group which includes Eastern Old World populations. Scanning electron microscopy revealed differences in the male genital organs of an <i>A. tunisiana</i> population by lacking a medial protuberance in the base of the penes while... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Artemia. |
| Ano: 1997 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2973 |
| |
|
| |
|
|
| Triantaphyllidis, G.V.; Abatzopoulos, T.J.; Sorgeloos, P.. |
| In this study we report on the known <i>Artemia</i> habitats worldwide. Recent literature information is incorporated about the taxonomic status of the various populations studied. The genus is composed of di-, tri-, tetra- and pentaploid parthenogenetic populations and of the following bisexual species, <i>A. franciscana franciscana</i>, <i>A. franciscana monica</i>, <i>A. franciscana</i> sp., <i>A. persimilis</i>, <i>A. salina, A. urmiana, A. sinica</i> and <i>A.</i> sp. from Kazakhstan. The problems of characterizing new brine shrimp populations are discussed. In view of the great importance of <i>Artemia</i> as part of the live food chain for the culture of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Artemia. |
| Ano: 1998 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=320 |
| |
|
|
| Triantaphyllidis, G.; Criel, G.R.J.; Abatzopoulos, T.J.; Thomas, K.M.; Peleman, J.; Beardmore, J.A.; Sorgeloos, P.. |
| A scanning electron microscopy (SEM) study of bisexual <i>Artemia</i> populations revealed that populations representing the species <i>A. franciscana, A. persimilis, A. urmiana, A. sinica</i> and a recently described species from Kazakhstan have a pair of spine-like outgrowths at the basal parts of their penes, whereas populations from Southern Europe and North Africa (i.e. Mediterranean populations) lack these spine-like outgrowths. Allozyme and DNA polymorphisms, detected by allozyme starch gel electrophoresis and AFLP fingerprinting, respectively, suggested conspecificity of the studied populations from the broader Mediterranean basin. Male specimens from the collection of the Natural History Museum of London (UK) of the extinct... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Artemia. |
| Ano: 1997 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2977 |
| |
|
|
| Triantaphyllidis, G.V.; Pilla, E.J.S.; Thomas, K.M.; Abatzopoulos, T.J.; Beardmore, J.A.; Sorgeloos, P.. |
| We present evidence that incubation of brine shrimp <i>Artemia</i> encysted embryos (cysts) at high temperatures (36-37°C) suppresses hatching of cysts from a parthenogenetic population, while at the same time allowing cysts of the New World bisexual species (<i>A. fransiscana</i>) to hatch. This approach is used to verify the presence of contaminating foreign material from the New World in natural cyst populations of Old World <i>A. parthenogenetica, A. sinica, A. urmiana</i> and <i>A. tunisiana</i>. We demonstrate that high temperature incubation can be routinely applied to cysts from natural <i>Artemia</i> populations occurring adjacent to fish and shrimp hatcheries, to determine the extent and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Artemia; Artemia franciscana. |
| Ano: 1994 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2687 |
| |
|
|
| Triantaphyllidis, G.V.; Abatzopoulos, T.J.; Miasa, E.; Sorgeloos, P.. |
| Two parthenogenetic <i>Artemia</i> populations from southern Africa, one from Swakopmund (Namibia) and another from Ankiembe saltworks (Madagascar) have been studied. The population of Namibia is mainly diploid (2n=42) with few tetraploid individuals (4n=84), while the one from Madagascar was found to be triploid (3n=63). No chromocenters have been observed in either of the two populations. The Namibian population has smaller cysts and nauplii compared to those of the Madagascar population. Discriminant analysis revealed significant differences in the biometry of the adults from the two populations. The two populations exhibited very good hatching characteristics. The study of fatty acid methyl esters revealed that the Namibian population... |
| Tipo: Info:eu-repo/semantics/article |
|
| Ano: 1996 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3110 |
| |
|
|
| Triantaphyllidis, G.; Criel, G.R.J.; Abatzopoulos, T.J.; Sorgeloos, P.. |
| Eleven morphometric and one meristic character in 15 parthenogenetic <i>Artemia</i> populations have been studied by using discriminant and cluster analysis as well as scanning electron microscopy. Discriminant analysis revealed five main groups of morphological patterns: (i) the coastal Chinese populations together with a population from Kazakhstan, (ii) the inland Chinese salt lake populations, (iii) the Greek populations, (iv) one African population from Namibia and (v) a Chinese population from Xuyu (Jiangsu province). Cluster analysis was not always in agreement with discriminant analysis and these results are discussed. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Artemia. |
| Ano: 1997 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2975 |
| |
|
|
| Triantaphyllidis, G.V.; Poulopoulou, K.; Abatzopoulos, T.J.; Pinto Pérez, C.A.; Sorgeloos, P.. |
| Two <i>Artemia</i> populations, a bisexual from San Francisco Bay (California, USA) and a parthenogenetic from Tanggu area (Tianjin province, People's Republic of China) are assayed for their tolerance and fitness in various salinity levels. This study was carried out under laboratory conditions where salinity effects upon special characteristics of the two <i>Artemia</i> populations, such as survival, growth rate, maturation, morphology, fecundity and life duration, were recorded. This evaluation revealed that the two populations examined exhibit significant differences in their response against elevated salinity levels. Furthermore, specific biometric parameters can be a useful tool for the discrimination and/or determination of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Artemia. |
| Ano: 1995 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2639 |
| |
|
|
|
