Centropomus undecimalis (popularly known as common snook) is a very important resource for commercial and recreational fishing. This study aimed to evaluate quantitative indicators of the reproductive biology of C. undecimalis in the Parnaíba Delta Environmental Protection Area (Brazil). The parameters were analyzed at the different stages of the reproductive cycle of 155 specimens, 135 (87.10%) males and 20 (12.90%) females. The results showed positive allometric growth for females and negative allometric growth for males. The sex ratio was 1:6.75 (females: males). The first estimated maturation (L50) was 57.21 cm for females and 54.55 cm for males. The species spawns multiple times, with oocytes maturing in batches, being released at intervals. According to the results of this study, it was possible to notice that reproductive peaks occurred in February, May, and November. Therefore, it is recommended that the capture of this species be avoided during these months.
Diante da pandemia do novo coronavírus e, consequentemente, da falta de tratamento precoce, diversos governantes, seguindo recomendações da Organização Mundial da Saúde (OMS), decretaram o isolamento social como medida de enfrentamento à crise. Contudo, a comunidade acadêmica teve sua rotina escolar alterada, impactando diretamente no desenvolvimento de suas atividades. Essas mudanças pedagógicas e o isolamento domiciliar podem propiciar níveis elevados de ansiedade aos estudantes. Dessa forma, este trabalho teve o objetivo de analisar os níveis de ansiedade de estudantes do ensino médio, na rede pública do estado do Maranhão, correlacionando-os a fatores decorrentes do isolamento social ocorrido durante os meses iniciais da pandemia. Para isso, o Inventário de Ansiedade de Beck (BAI) e um questionário Socioeconômico foram
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