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| Registros recuperados: 12 | |
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| Vignatti,Alicia; Echaniz,Santiago; Martín,María C. |
| El Valle Argentino es una formación medanosa ubicada en el centro de la provincia de La Pampa, en la región semiárida central de Argentina, en el que se encuentra un grupo de lagos someros, alimentados por lluvias, de distintas características físico-químicas, sobre todo la salinidad, pero que comparten un elevado grado de eutrofia. A los efectos de integrar información sobre la composición y variación de las asociaciones zooplanctónicas de ambientes de diferentes concentraciones de salinidad y grados de eutrofia, se analizaron, mediante muestreos mensuales, tres lagos someros (lagunas) del Valle Argentino, dos de ellos subsalinos y el tercero hipo-mesosalino. Las dos lagunas subsalinas son turbias, con cianofitas, y en ellas se registró la presencia de... |
| Tipo: Journal article |
Palavras-chave: Boeckella; Copépodos; Daphnia; Nauplii; Rotíferos. |
| Ano: 2007 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382007000100005 |
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| Suárez, J.A.; García, A.; Newmark, F.; Bador, R.. |
| In order to identify initial factors that can affect shrimp postlarvae survival during larval rearing, three larval rearing facilities from the Caribbean coast of Colombia were samplesd for 71 nauplii batches during 10 months of 1996. For each batch, cualitative variables (origin, transportation mode, presence of bacteria in transport water) and quantitative variables (transportation time and density, physicochemical parameters of the water, proportion of each nauplii stage and of deformed nauplii) were monitored. Water quality and density (nauplii/l) variables were monitored during the whole process of nauplii packing, transport, reception, acclimatization and stocking. To evaluate the relationship between qualitative variables and larval rearing... |
| Tipo: Journal Contribution |
Palavras-chave: Nauplii; Quality; Bacteria; Transport; Transport; Quality; Bacteria; Http://aims.fao.org/aos/agrovoc/c_7874; Http://aims.fao.org/aos/agrovoc/c_6400; Http://aims.fao.org/aos/agrovoc/c_765. |
| Ano: 2001 |
URL: http://hdl.handle.net/1834/3112 |
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| Léger, P.; Vanhaecke, P.; Sorgeloos, P.. |
| Freshly-hatched <i>Artemia</i> nauplii from various geographical sources survived storage in a refrigerator (2-4°C) at densities of 2000 per ml and above. Except for <i>Artemia</i> from Chaplin Lake and Buenos Aires, naupliar viability was very high even after 48 h storage, and did not decrease significantly after a 24 h post-storage transfer to 25°C. Neither the naupliar dry weight nor biochemical composition changed significantly during refrigeration for most strains tested. Comparative culture-tests with stored and freshly-hatched nauplii as food for juvenile marine mysids <i>Mysidopsis bahia</i> M. and larval carp <i>Cyprinus carpio</i> L. revealed similar production performances. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aquaculture techniques; Cold storage; Nauplii; Artemia. |
| Ano: 1983 |
URL: http://www.vliz.be/imisdocs/publications/261894.pdf |
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| Vanhaecke, P.; Persoone, G.. |
| Considering the need for reliable standardized routine toxicity tests for the marine environment, a short-term bioassay with <i>Artemia</i> nauplii has been developed for routine testing. The major reason for the selection of brine shrimp as test species is the continuous availability of <i>Artemia</i> under the form of dry cysts from which the larvae are hatched very easily. This unique advantage solves one of the major problems of aquatic ecotoxicological tests, namely stock recruitment and/or culturing; the <i>Artemia</i> test can be performed anywhere and at any time from dry biological material available "on the shelf".An extensive study has been performed on various brine shrimp tests published in scientific... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Methodology; Nauplii; Toxicity tests; Artemia. |
| Ano: 1984 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3275 |
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| Sorgeloos, P.; Remiche-Van der Wielen, C.; Persoone, G.. |
| Because of their easy hatching from dry cysts and their year-round availability, nauplii of the brine shrimp <i><i>Artemia</i> salina</i> are most convenient test organisms for toxicity studies. The bioassays mentioned in literature have, however, mostly been carried out with larvae of which neither the exact instar stage nor the geographical origin is known. The incubation of the cysts should always be carried out under strictly controlled temperature conditions since both the onset of hatching and the length of the hatching period are temperature-dependent. Moreover, the experiments should only be carried out with populations of nauplii of the same stage of development since it is demonstrated that the second and third instars are... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Nauplii; Toxicity tests; Artemia. |
| Ano: 1978 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3588 |
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| Vanhaecke, P.; Persoone, G.. |
| Considering the necessity for standardization of toxicity tests and the need for simple and reliable routine tests, the <i>Artemia</i> Reference Center at the State University of Ghent in Belgium has developed a short term standard toxicity test with <i>Artemia</i> nauplii. This simple and inexpensive bioassay which can be used as a screening test to determine the toxicity of chemicals to aquatic organisms, has been discussed in detail during a special workshop devoted to toxicity tests with brine shrimp, at the occasion of the "International Symposium on the brine shrimp <i><i>Artemia</i> salina</i>"(Corpus Christi, Texas, USA; August 1979). Besides a few minor modifications, the test methodology was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Intercalibration; Nauplii; Toxicity tests; Artemia. |
| Ano: 1981 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3377 |
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| Vanhaecke, P.; Persoone, G.; Claus, C.; Sorgeloos, P.. |
| Standardization of toxicity tests on aquatic organisms to detect the impact of chemicals on freshwater or marine ecosystems is an urgent necessity. From the variety of methods, criteria, and test species proposed, simple standardized tests for algae, crustaceans, and fish are now close to being adopted at the international level for the freshwater environment. Despite the same urgency, very little has been achieved for the marine environment. <i>Artemia</i> is an extremely suitable test-species since, contrary to all other organisms, it does not require continuous maintenance of stock cultures. Unfortunately none of the <i>Artemia</i> toxicity tests that have been worked out so far can be adopted as such as a representative standard... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Nauplii; Toxicity tests; Artemia. |
| Ano: 1980 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3698 |
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| Persoone, G.; Sorgeloos, P.. |
| 1. A simple cylindrical hatching and separator box is described for <i>Artemia salina</i>nauplii (and other phototactic invertebrates), in which the "corner seeking effect" responsible for poor separation is avoided, and from which nauplii can be recovered very conveniently. 2. Separation is achieved by partly unscrewing an internal and closed cylinder from its fixed counter-part glued to the bottom of the box, till two slits are freed through which the nauplii migrate from the darkened internal hatching cylinder into the illuminated exterior compartment. Rescrewing the former cylinder separates the larvae from debris and unhatched eggs. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hatching; Instruments; Nauplii; Phototaxis; Artemia. |
| Ano: 1972 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3460 |
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| Vanhaecke, P.; Persoone, G.; Claus, C.; Sorgeloos, P.. |
| Although standardization of toxicity tests on aquatic organisms is an urgent necessity, very little has yet been achieved for the marine environment. As a first step in this direction, a simple, inexpensive and reliable short-term routine test with <i>Artemia</i> larvae is proposed. This test is the result of an extensive study in our laboratory, taking into account the advantages and disadvantages of <i>Artemia</i> bioassays published by various authors. The major advantage of the brine shrimp as a test species is its continuous availability under the form of dry cysts which can be hatched very easily; this eliminates all biological, technological, and financial problems of stock recruitment and/or culturing. The acute test... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Nauplii; Toxicity tests; Artemia. |
| Ano: 1981 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3711 |
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| Dias, Danielle de Carla; Centro de Aquicultura da UNESP - CAUNESP; Corrêa, Camila Fernandes; Polo Regional de Desenvolvimento Sustentável do Vale do Ribeira; Leonardo, Antônio Fernando Gervásio; Polo Regional de Desenvolvimento Sustentável do Vale do Ribeira; Tachibana, Leonardo; Instituto de Pesca; Romagosa, Elizabeth; Instituto de Pesca; Ranzani-Paiva, Maria José Tavares; Instituto de Pesca. |
| Brycon amazonicus larvae fed with probiotic consisting of Bacillus subtilis, bioencapsulated in Artemia salina at different doses. Six treatments were used: T0 = control (without probiotic), T2.5 = 2.5 g, T5.0 = 5.0 g, T7.5 = 7.5 g, T10.0 = 10.0 g and T12;5 = 12.5 g per liter of probiotic when fed with A. saline (4h before feeding the larvae); and per kilogram of feed (commercial powder with 40% crude protein) in the next phase. The results showed heterogeneity with regard to growth, indicating that larvae fed with probiotic had no influence on cannibalism. |
| Tipo: Trabalho de campo |
Palavras-chave: 5.06.03.00-0 Bacillus subtilis; Larvicultura; Nauplios Artemia salina; Bacillus subtilis; Nauplii. |
| Ano: 2011 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/11764 |
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| Registros recuperados: 12 | |
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