bycatch of sea-bob shrimp (Xiphopenaeus kroyeri) fishing in the town of Porto Belo, SC, Brazil. Biota Neotrop. 13(1): http://www.biotaneotropica.org.br/v13n1/en/abstract?inventory+bn00313012013Abstract: The activity of artisanal fishing for the sea-bob shrimp, using the method of motorized dragnet with rings, has been practised on the Santa Catarina coast, where it generates jobs and income, and helps keep the traditional Azorean cultural tradition alive, since 1960. With the aim of analyzing the quality and quantity of the ichthyofauna bycatch, two trawls were carried out per isobath (10-20-30 m), seasonally, between November 2009 and August 2010 (i.e. summer, spring and winter), for 20 minutes each, at an average speed of two knots, and the bottom water temperatures and salinities recorded. The captures totalled 10868 fish (208.34 kg), distributed among 31 families and 62 species, with a fish/shrimp ratio of 5.19/1 kg. The most abundant family was Sciaenidae (86.13%), followed by Batrachoididae (2.70%) and Trichiuridae (2.44%). The diversity and evenness indices presented similar patterns of variation, the highest values occurring in spring at 30 m and the lowest in winter at 20 m. Cluster analysis led to the creation of four groups; one of them small and dominated by the Sciaenidae Stellifer brasiliensis, S. rastrifer, Paralonchurus brasiliensis, Isopisthus parvipinnis and Larimus breviceps. The young of this and other species, which are of little or no commercial value, along with tiny shrimps and other macroinvertebrates that enter the dragnets, are thrown back into the sea, usually dead. Besides the negative impact on the food chain, this continued practice could exacerbate the situation of artisanal fishermen even further, with the gradual, future decline of these resources. Resumo: A pesca artesanal dirigida ao camarão sete-barbas (Xiphopenaeus kroyeri), usando o método de arrasto motorizado com portas, tem sido praticada na costa de Santa Catarina, onde ele gera emprego e renda, e ajuda a manter a tradição cultural tradicional açoriana viva, desde 1960. Com o objectivo de analisar a qualidade e a quantidade das capturas acidentais da ictiofauna, efetuou-se sazonalmente, dois arrastos por isóbata (10-20-30 m) entre novembro/2009 e agosto/2010, duração de 20 min/cada, velocidade média dois nós e, registrados temperaturas e salinidades da água de fundo. As capturas totalizaram 10868 peixe (208.34 kg), distribuídos em 31 famílias e 62 espécies, com uma proporção de peixe/camarão de 5,19/1 kg. A família mais abundante foi Sciaenidae (86.13%), seguido por Batrachoididae (2.70%) e Trichiuridae (2,44%). Os índices de diversidade e equabilidade apresentaram padrões similares de variação, os maiores valores ocorreram na Primavera na profundidade de 30 m e a mais baixa no inverno, a 20 m. A análise de Cluster formou quatro agrupamentos, sendo um deles, pequeno e dominante de Sciaenidae Stellifer brasiliensis, S. rastrifer, Paralonchurus brasiliensis, Isopisthus parvipinnis e Larimus breviceps. Os exemplares jovens...
Rodrigues-Filho, J.L.; Branco, J.O.; Monteiro, H.S.; Verani, J.R., and Barreiros, J.P., 2015. Seasonality of ichthyofauna bycatch in shrimp trawls from different depth strata in the southern Brazilian coast. Journal of Coastal Research, 31(2), 378-389. Coconut Creek (Florida), ISSN 0749-0208.Changes in the species composition and ecological descriptors of fish assemblages in terms of abiotic factors such as depth, temperature, salinity, and granulometry were analyzed. Monthly trawls, from October 2003 to September 2004 (30 minutes each) were analyzed in two areas covering an important shrimp fishing site of the Brazilian coast. Results using bifactorial analysis of variance revealed a seasonal variation of environmental variables (p , 0.05), and granulometry analyses showed that the composition of the fishing grounds was similar-mostly sand. A total of 12,613 fish were collected: 7880 in area I and 4733 in area II. The highest values of capture in numerical abundance (catch per unit effort) occurred during winter. Fifty taxa were caught in area I, and 53 taxa were caught in area II. Both values are considered high when compared to previous studies conducted in nearby areas. Sciaenidae was the most speciose family in all samples and in both areas were dominant in number of species (37 species in area I and 42 species in area II). Cynoscion striatus was the most abundant and dominant species in both areas. Estimates of ecological descriptors, such as richness, diversity, and evenness, showed that the ichthyofauna structure was strongly influenced by climatic factors, and all values were more pronounced during fall and winter. The permutational multivariate analysis of variance demonstrated that ichthyofauna species composition differs among seasons. The Student's t test applied a posteriori showed that the community composition differed (significantly) in the following comparisons: spring vs. fall (p , 0.05) and winter vs. summer (p , 0.05). According to similarity percentage analysis, changes in the community structure were mainly correlated with species classified as abundant, which occurred unevenly during the different periods. Our results show that the fish community is influenced by seasonal variations such as salinity and temperature but not by depth or sand grain sizes. ADDITIONAL INDEX WORDS:Fishing, abiotic factors, ecological descriptors, specific composition.
Esta pesquisa tem como objetivo estudar a diversidade, abundância e a riqueza micológica da FLONA, uma área de Mata Atlântica Ombrófila Densa. As informações coletadas servirão de base para estudos futuros no local, uma vez que fungos são consideravelmente importantes em áreas de recuperação florestal e possuem potencial econômico para o setor alimentício e farmacêutico. As coletas analisaram as características locais e de cada espécie propriamente dita. Após o trabalho em campo as amostras foram levadas para o laboratório e preparadas para a fixação em álcool 70% e estudos posteriores.
O presente artigo tem como finalidade apresentar os dados obtidos com a pesquisasobre o desenvolvimento da depressão e ansiedade, bem como sua relação com osestudantes do Ensino Médio no IFC - Campus Ibirama. Para tal, utilizou-se pesquisabibliográfica e pesquisa qualitativa com os estudantes mencionados e verificou-seíndices elevados de sintomas depressivos e ansiosos. Tendo como objetivo acompreensão destes transtornos e como eles afetam o desempenho acadêmico, éde suma importância o conhecimento por parte da comunidade, uma vez que oaparecimento de complicações dessas doenças torna-se mais recorrente ao longodos anos.
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