Results 131 to 140 of about 761 (154)
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Substitution of Chaetoceros muelleri by Spirulina platensis meal in diets for Litopenaeus schmitti larvae

Aquaculture, 2006
Abstract The nutritional response of Litopenaeus schmitti larvae to substitution of Chaetoceros muelleri by Spirulina platensis meal (SPM) was evaluated. The substitution levels (S) were 0%, 25%, 50%, 75% and 100%, dry weight basis. Final larval length (FL) ranged from 1.98 to 3.16 mm for the different substitution levels.
Barbarito J. Jaime-Ceballos   +3 more
openaire   +1 more source

Growth of the white shrimp litopenaeus schmitti in western Venezuela

2004
Trabalhos prévios sobre o crescimento de Litopenaeus schmitti mostraram diferenças nos valores dos parâmetros estimados. Estes trabalhos utilizaram como fonte de informação distribuições de freqüências de longitudes no Lago de Maracaibo, de onde predominam tamanhos pequenos, excluindo a fração de indivíduos presentes no Golfo de Venezuela, de onde ...
Andrade de Pasquier, Glenys   +1 more
openaire   +2 more sources

Bioaccumulation of heavy metals by shrimp (Litopenaeus schmitti): A dose–response approach for coastal resources management

Marine Pollution Bulletin, 2017
We reveal a dose-response relationship for bioaccumulation of Zn, Cu and Cr in shrimp Litopenaeus schmitti from Sepetiba Bay, Rio de Janeiro, Brazil. Our model estimates the current risk (AD50 was 70% of the legal limit) and the daily metal uptake rate for each metal.
Juliana Ribeiro Nascimento   +5 more
openaire   +2 more sources

Trace metal distribution in white shrimp (Litopenaeus schmitti) tissues from a Brazilian coastal area

Environmental Earth Sciences, 2016
Biomonitoring in situ was performed in order to assess Sepetiba Bay’s Litopenaeus schmitti efficiency as environmental contamination biomonitor, an area historically contaminated by metals and where this shrimp is the second most abundant species. Trawlings were conducted during rainy and dry seasons close to the main pollution sources to evaluate Cd ...
Juliana Ribeiro Nascimento   +4 more
openaire   +1 more source

The economic viability for the production of live baits of White Shrimp (Litopenaeus schmitti) in recirculation culture system

Aquaculture International, 2014
Sportfishing is a growing segment in the fishing sector, which requires the supply of marine shrimps to meet the demand for live baits; however, the extraction of white shrimp from their natural habitat results in overfishing depleting natural stocks.
Leonardo Castilho de Barros   +2 more
openaire   +1 more source

DNA microsatellite variability and genetic differentiation among natural populations of the Cuban white shrimp Litopenaeus schmitti

Marine Biology, 2004
Genetic variability within the Cuban population of the white shrimp Litopenaeus schmitti (Burkenroad, 1936) was assessed using five microsatellite loci and samples collected from four sites (Batabano, Cienfuegos, Tunas de Zaza, and Manzanillo) from November 1999 to March 2000.
Y. Borrell   +5 more
openaire   +1 more source

Effects of Echerichia coli lipopolysaccharides and dissolved ammonia on immune response in southern white shrimp Litopenaeus schmitti

Aquaculture, 2008
Abstract The success of penaeid shrimp aquaculture has been limited by endemic and epidemic infectious diseases around the world and shrimp defense mechanisms are a priority for control, prevention, and diagnosis. The lethal dose (LD50) of Escherichia coli lipopolysaccharides was calculated and pathogen injection and dissolved ammonia concentration ...
Tania Rodríguez-Ramos   +8 more
openaire   +1 more source

The SV40 T antigen nuclear localization sequence enhances nuclear import of vector DNA in embryos of a crustacean (Litopenaeus schmitti)

Gene, 2004
A genetic transformation system for penaeid shrimp could provide a powerful technique for the improvement of different production traits of importance for a sustainable aquaculture. The development of a successful transformation system depends on the ability to efficiently introduce exogenous DNA into the target species.
Amilcar, Arenal   +4 more
openaire   +2 more sources

Acute toxicity of ammonia in white shrimp (Litopenaeus schmitti) (Burkenroad, 1936, Crustacea) at different salinity levels

Aquaculture, 2010
article i nfo Litopenaeus schmitti juveniles (total length 15±0.7 mm) were exposed to different concentrations of ammonia-N (un-ionized plus ionized ammonia as nitrogen), using the static renewal method at different salinity levels (5‰ ,2 0‰ and 35‰) at pH 8.0 and 20 °C. The 24, 48, 72, 96 h LC50 values of ammonia-N in L. schmitti juveniles were 40.72,
openaire   +1 more source

Ontogenetic variation in digestive proteinase activity, RNA and DNA content of larval and postlarval white shrimp Litopenaeus schmitti

Aquaculture, 2002
Abstract Proteinase (endopeptidase), trypsin and chymotrypsin activities, RNA, and DNA contents were examined throughout the ontogenetic development of cultured Litopenaeus schmitti . Whole individuals from larval and postlarval stages, and adult hepatopancreas were homogenized and assayed for quantification of enzyme activity.
D Lemos   +3 more
openaire   +1 more source

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