Understanding the evolution of scientific literature is a critical and necessary step for the development and strengthening of a research field. However, an overview of global dinoflagellate research remains unavailable. Herein, global dinoflagellate research output was analyzed based on a scientometric approach using the Scopus data archive. The basic characteristics and worldwide interactions of dinoflagellate research output were analyzed to determine the temporal evolution and new emerging trends. The results confirm that dinoflagellate research output, reflected in the number of publications, is a fast-growing area since the mid-1990s. In total, five research subareas emerged using a bibliometric keywords analysis: (1) “symbiosis with coral reefs”, (2) “phylogeny”, (3) “palynology”, (4) “harmful algal blooms” and (5) “nutrition strategies”. Dinoflagellate publications were modeled by fish production (both aquaculture and fisheries) and economic and social indexes. Finally, directions for future research are proposed and discussed. The presented scientometric analysis confirms that dinoflagellate research is an active and important area with focus on mitigating economic impacts, especially in regard to fish production.

This study aimed to evaluate the effect of different forms of artificially salinized on the zootechnical performance, TCBS and Sabouraud Dextrose counts in Penaeus vannamei juveniles reared in a synbiotic system. Four treatments were established in triplicate using a completely randomized design: SD (diluted seawater); LCSM (low-cost salt mix with freshwater); CS (commercial salt); and SW (seawater) in experimental tanks of 60 L, with a density of 2,000 PL m^− 3 for 40 days. An ammonia stress test was performed at the end of the culture and TCBS and Sabouraud Dextrose counts in gut was performed at the 20th and 40th. The synbiotic system proved to be effective in the control of nitrogen compounds. The values of calcium, magnesium and total hardness remained above 30, 75 and 400 mg L^− 1, respectively in low salinity treatments. Better values of final average weight were obtained with the different forms of artificially salinized (LCSM, SD and CS), but survival was lower when compared to SW. There was no influence of different forms of artificially salinized on bacterial counts of TCBS and Sabouraud Dextrose, and on resistance to ammonia stress. Based on the results obtained, it can be concluded that it is possible to rear P. vannamei juveniles in artificially salinized water of low salinity (3 g L^− 1) in a synbiotic system.

O estudo apresenta o desenvolvimento e a validação de um sistema inteligente de monitoramento, de baixo custo, voltado à aquicultura de precisão, com base na arquitetura da Internet das Coisas (IoT). O sistema é composto por sensores subaquáticos capazes de medir, em tempo real, parâmetros críticos da qualidade da água, como temperatura, pH e oxigênio dissolvido (OD), sendo este último estimado indiretamente por meio de uma rede neural artificial baseada nas leituras de temperatura e pH. O protótipo foi testado em pisciculturas localizadas em São José do Egito (PE), Serra Talhada (PE) e Recife (PE) (UFRPE), durante o ciclo completo de cultivo da tilápia-do-Nilo (Oreochromis niloticus), ao longo de quatro meses. Os resultados demonstraram alta precisão para os sensores de temperatura (CV-RMSE ≤ 2,93%) e pH (CV-RMSE ≤ 16,01%), evidenciando sua confiabilidade para uso em campo. As estimativas de OD apresentaram maior variação (CV-RMSE entre 58,01% e 81,73%), indicando a necessidade de aprimoramento do modelo preditivo. Ainda assim, o sistema mostrou potencial para contribuir com a aquicultura 4.0, ao fornecer dados em tempo real, armazenamento em nuvem, visualização remota e alertas automatizados, otimizando o processo de tomada de decisão e a gestão da produção aquícola.