|
|
|
|
|
| Coutteau, P.; Caers, M.; Curé, K.; Gajardo, G.. |
| The success of hatchery production of bivalves remains highly unpredictable and mortalities are often attributed to deficiencies in certain nutritionally important components. Several studies have implicated the importance of lipids, in particular triglycerides, in the early life stages as a source of energy and essential fatty acids. Experimental diets used so far in bivalve nutrition studies are either heavily polluting the water or too complex to prepare on a regular basis in a hatchery. Self emulsifying concentrates of marine oils are off-the-shell lipid supplements that may be acceptable for bivalves. A series of studies were performed with different species and life stages to evaluate the potential use of these lipid emulsions as a supplement for... |
| Tipo: Info:eu-repo/semantics/article |
|
| Ano: 1996 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2928 |
| |
|
|
| Gajardo, G.; Mercado, C.; Beardmore, J.A.; Sorgeloos, P.. |
| An <i>Artemia</i> population from a site recently described in Chile and located in a semi-arid and humid hydrographical zone (Torres del Paine National Park), was electrophoretically characterized and cross-bred (followed through <i>F</i><sub>3</sub>) to reference samples of <i>A. franciscana</i> (San Francisco Bay, California, USA) and <i>A. persimilis</i> (Buenos Aires, Argentina), which are the species most likely to be found in Chile. The population exhibited high levels of genetic variability as judged by the percentage of polymorphic loci (<i>P</i>=53.3), mean number of alleles per locus (<i>n</i>=2.2) and mean heterozygosity (<i>H</i>=0.176). Based on... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Allopatric populations; Allozymes; Genetic isolation; Hybridization; Population genetics; Chile. |
| Ano: 1999 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=4016 |
| |
|
| |
|
|
| Gajardo, G.; Colihueque, N.; Parraguez, M.; Sorgeloos, P.. |
| Six <i>Artemia</i> populations from coastal and inland sites in Chile, ranging from 20 to 50 degrees latitude south, were compared morphologically. The study included reference samples of <i>A. franciscana</i> (San Fransisco Bay, California-USA) and <i>A. persimilis</i> (Buenos Aires, Argentina). These species are likely to be found in Chile. Samples from Peru (Piura) and Brazil (Macau, Rio Grande do Norte) are two known examples of deliberate introduction of <i>A. franciscana</i>. The hypothesis of <i>A. franciscana</i> being the dominant species in South America was tested by multivariate morphological analyses based on ten body measurements. In addition, laboratory cross-fertility tests were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Artemia. |
| Ano: 1998 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=302 |
| |
|
|
| Gajardo, G.; Parraguéz, M.; Beardmore, J.A.; Sorgeloos, P.. |
| The brine shrimp <i>Artemia</i> , a typical inhabitant of hypersaline environments and characterized by a highly subdivided population structure, was used as a model to evaluate, under standardized laboratory conditions (at 65 ppt), primary reproductive traits (offspring quality and quantity) along with levels of reproductive isolation and degrees of divergence among populations. Intrapopulation experimental crosses and cross-fertility tests were evaluated in five populations (mostly <i>A. franciscana</i>) from coastal and inland environments in Chile, and in reference samples of <i>A. franciscana</i> (San Francisco Bay, USA) and <i>A. persimilis</i> (Buenos Aires, Argentina), which are the species likely to... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Encystment Evolution Fecundity Fertility Hybrids Reproduction Argentina Artemia Artemia franciscana Argentina; Buenos Aires Chile INE PSW; Argentina; Buenos Aires. |
| Ano: 2001 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8062 |
| |
|
| |
|
|
| Gajardo, G.; Coutteau, P.; Curé, K.; Sorgeloos, P.; Beardmore, J.A.. |
| Marine aquaculture, particularly the salmon farming industry, has expanded very fast in Chile. Currently the country ranks second among the world leading salmon producers. However, there is a growing concern for the diversification of aquaculture activities. Examples are the cultures of flatfishes, either the introduced turbot (<i>Scophthalmus maximus</i>) or the native flounder species <i>Paralichthys microps</i> and <i>P. adspersus</i>, along with the native scallop, <i>Argopecten purpuratus</i>. Although both turbot and scallop farming have had a successful transition from pilot to industrial scale, dependable availability of larvae/seed at cost-effective prices is, unlike the situation in the salmon... |
| Tipo: Info:eu-repo/semantics/article |
|
| Ano: 1996 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2961 |
| |
|
|
|
