Litopenaeus vannamei
Litopenaeus vannamei on World Data Ocean: a running collection of 4 stories we have gathered and hand-picked because they are worth your time. Every post here touches on litopenaeus vannamei in some way — the news, the analysis, the deep dives, and the occasional surprise find. A Global Hub for Ocean Intelligence 4 World Data Ocean is a centralized digital platform where researchers, scientists, and ocean enthusiasts converge to explore, analyze, and… New stories are added to this page as we find them, so check back if you want to keep up with what is happening around litopenaeus vannamei, or subscribe to the RSS feed to get them as soon as they are published. Browse the collection below, or head back to the homepage to see everything World Data Ocean is covering right now.
Evaluation of carbon transfer efficiency from microalgae to Litopenaeus vannamei larvae using a laboratory scale rearing system
Quantifying carbon flows is increasingly vital for assessing aquaculture’s environmental impact. This study addresses a critical knowledge gap: the efficiency of carbon transfer from microalgae to commercially important species. Utilizing a laboratory-scale rearing system, we measured carbon transfer from *Chaetoceros gracilis* to *Litopenaeus vannamei* larvae, achieving a peak efficiency of 33.0% at a specific algal density. Extrapolating these findings suggests annual carbon retention of 9.2 tons within *L. vannamei* hatchery seed production.
Threshold-dependent effects of Clostridium autoethanogenum protein as the primary dietary protein source on growth, metabolism, and gut microbiota in Litopenaeus vannamei
Recent research highlights the threshold-dependent effects of *Clostridium autoethanogenum* protein (CAP) as a primary dietary protein source for *Litopenaeus vannamei* (Pacific whiteleg shrimp). This study rigorously assessed growth, metabolism, and gut microbiota responses across varying CAP inclusion levels (32%-48%). Optimal growth was observed at 39.44% CAP, with higher levels demonstrating reduced growth rates and shifts in gut microbial communities—specifically, a trade-off between beneficial lipid metabolism and potential pathogen proliferation.
A comparative observational study of prokaryotic microbial community dynamics across different Litopenaeus vannamei cultivation systems
Prokaryotic microbial communities serve as critical indicators of ecosystem health within aquaculture. This observational study comparatively analyzes these communities across three commercial *Litopenaeus vannamei* cultivation systems, examining the impact of pond construction, salinity, and water-exchange intensity. Utilizing 16S rRNA amplicon sequencing, researchers documented significant differences in community composition and diversity, revealing a trade-off between stability and potential pathogenic risk. For deeper exploration of coastal ecology, see our related article, "Abundance and physical controls of Mediterranean micro-estuaries."
Genome-wide characterization of hemocyanin gene family and adaptive evolution of heme oxygenase across four penaeid shrimp species
Penaeid shrimp aquaculture faces escalating challenges from disease and environmental stress, highlighting the critical need for enhanced resilience. This study presents a comprehensive, genome-wide characterization of the hemocyanin gene family across four penaeid shrimp species, alongside an analysis of heme oxygenase (HO) adaptive evolution. Phylogenetic analysis revealed key divergence times, with *Marsupenaeus japonicus* exhibiting the earliest separation. The research identifies a significantly expanded hemocyanin gene repertoire and pinpoints HO, demonstrably under positive selection, as playing a vital role in immune defense and stress tolerance.