OCORRÊNCIA DO CAMARÃO TIGRE-GIGANTE Penaeus monodon FABRICIUS, 1798 (CRUSTACEA, DECAPODA, PENAEIDAE) NA PLATAFORMA CONTINENTAL PIAUIENSE

This study aimed to report the first occurrence of giant asian tiger shrimp Penaeus monodon Fabricius, 1798 in Piauí coast. A unique example was captured in March 2015 by a shrimp fishing boat. In the laboratory the specimen was identified, sexed, weighed and measured in carapace length (CL), post-orbital length (POL) and length (TL). The exemplary captured it is a female with 298.45 g, 316.20 mm (TL), 133.85 mm (CL) and 90.10 mm (POL) and was found in the depth range of 4 to 6 meters in latitude: 02°50'51.1"S and longitude: 041°40'03.9"W.Keywords: Bioinvasion; Penaeus monodom; Piauí Continental Shelf.O presente trabalho teve o objetivo de relatar a primeira ocorrência do camarão tigre-gigante Penaeus monodon Fabricius, 1798 no litoral piauiense. Foi capturado um único exemplar em março de 2015 por uma embarcação da frota camaroneira. No laboratório o espécime foi identificado, sexado, pesado e mensurado no comprimento do cefalotórax (CC), comprimento do pós-orbital (CPO) e comprimento total (CT). O exemplar capturado foi uma fêmea de 298,45 g, 316,20 mm (CT), 133,85 mm (CC), e 90,10 mm (CPO) capturada na faixa de profundidade de 4 a 6 metros na latitude: 2°50'51.1" S e longitude: 41°40'03.9" W.Palavras-chave: Bioinvasão, Penaeus monodom, Plataforma Continental Piauiense

ATLANTIC EPIPHYTES: a data set of vascular and non-vascular epiphyte plants and lichens from the Atlantic Forest

Epiphytes are hyper-diverse and one of the frequently undervalued life forms in plant surveys and biodiversity inventories. Epiphytes of the Atlantic Forest, one of the most endangered ecosystems in the world, have high endemism and radiated recently in the Pliocene. We aimed to (1) compile an extensive Atlantic Forest data set on vascular, non-vascular plants (including hemiepiphytes), and lichen epiphyte species occurrence and abundance; (2) describe the epiphyte distribution in the Atlantic Forest, in order to indicate future sampling efforts. Our work presents the first epiphyte data set with information on abundance and occurrence of epiphyte phorophyte species. All data compiled here come from three main sources provided by the authors: published sources (comprising peer-reviewed articles, books, and theses), unpublished data, and herbarium data. We compiled a data set composed of 2,095 species, from 89,270 holo/hemiepiphyte records, in the Atlantic Forest of Brazil, Argentina, Paraguay, and Uruguay, recorded from 1824 to early 2018. Most of the records were from qualitative data (occurrence only, 88%), well distributed throughout the Atlantic Forest. For quantitative records, the most common sampling method was individual trees (71%), followed by plot sampling (19%), and transect sampling (10%). Angiosperms (81%) were the most frequently registered group, and Bromeliaceae and Orchidaceae were the families with the greatest number of records (27,272 and 21,945, respectively). Ferns and Lycophytes presented fewer records than Angiosperms, and Polypodiaceae were the most recorded family, and more concentrated in the Southern and Southeastern regions. Data on non-vascular plants and lichens were scarce, with a few disjunct records concentrated in the Northeastern region of the Atlantic Forest. For all non-vascular plant records, Lejeuneaceae, a family of liverworts, was the most recorded family. We hope that our effort to organize scattered epiphyte data help advance the knowledge of epiphyte ecology, as well as our understanding of macroecological and biogeographical patterns in the Atlantic Forest. No copyright restrictions are associated with the data set. Please cite this Ecology Data Paper if the data are used in publication and teaching events. © 2019 The Authors. Ecology © 2019 The Ecological Society of Americ

Análise temporal da relação peso/largura de carapaça e fator de condição em Uca mordax (Smith, 1870) (Crustacea, Decapoda, Ocypodidae) no Rio Igaraçu, Parnaíba, PI, Brasil

http://dx.doi.org/10.5007/2175-7925.2016v29n1p47Crabs of the genus Uca Leach, 1814 are widely distributed along the Brazilian coast and play an important ecological role in the estuarine ecosystem in soil bioturbation, nutrient cycling and by serving as a food source for other organisms. This study analyzed the relationship of wet weight/carapace width and the temporal dynamics of the condition factor of the crab Uca mordax (Smith, 1870). The crabs were sampled manually on the bank of the Igaraçu River (02°53’58”S; 41°46’49”W) from September 2009 to June 2011, in the dry and rainy seasons. A total of 602 crabs (449 males and 153 females) were analyzed. The carapace width (CW) and the wet weight (WW) were determined for each individual. The biometric data obtained were submitted to a regression analysis using the power equation (y=axb). The CW/WW relationship for males was expressed by the equation WW=0.00011CW3.441, and for females by WW=0.000183.211. The condition factor was determined for each month and compared between the sexes. The females showed a 1.6 higher degree of fattening than the males. In the rainy season the females showed an isometric increase in weight, while the other relationships (males during the dry and rainy seasons and females in the dry season) showed a positive allometric increase. There was no significant difference in the degree of fattening between males and females. http://dx.doi.org/10.5007/2175-7925.2016v29n1p47Os caranguejos do gênero Uca Leach, 1814 são amplamente distribuídos na costa brasileira e desempenham importante papel ecológico no ecossistema estuarino na bioturbação do solo, ciclagem de nutrientes e servindo como fonte de alimento para outros organismos. Este estudo objetiva analisar a relação peso úmido/largura da carapaça e a dinâmica temporal do fator de condição do caranguejo Uca mordax (Smith, 1870). Os caranguejos foram coletados manualmente na margem do Rio Igaraçu (02°53’58”S; 41°46’49”W), de setembro de 2009 a junho de 2011, no período seco e chuvoso da região. Foram analisados 602 caranguejos (449 machos e 153 fêmeas). Determinou-se a largura da carapaça (LC) e o peso úmido (PU) de cada indivíduo. Os dados biométricos obtidos foram submetidos a uma regressão, por meio do software REGRANS, utilizando-se a equação do tipo potência (y = axb). A relação PU/LC para os machos foi expressa pela equação PU = 0,00011LC3,441, e para as fêmeas por PU = 0,00018LC3,211. O fator de condição foi determinado para cada mês de coleta, e comparado entre os sexos. As fêmeas apresentaram o grau de engorda cerca de 1,6 vezes maior que o dos machos. No período chuvoso as fêmeas apresentam um crescimento em peso do tipo isométrico, enquanto as demais relações (machos no período seco e chuvoso, e fêmeas no período seco) apresentaram crescimento alométrico positivo. Não houve diferença signiicativa entre o grau de engorda de machos e fêmeas.

Population biology and relative growth of the crab Minuca mordax (Smith, 1870) (Crustacea, Decapoda, Ocypodidae) in the Igaraçu River, Parnaíba, state of Piauí, Brazil

This study aimed to investigate the population biology of Minuca mordax in the Igaraçu River, Parnaíba, analyzing frequency distribution in size classes, reproductive period, relative growth, morphological sexual maturity, sex ratio and heterochely. The crabs were manually collected, randomly, by two people for 1 hour, in the representative months of the dry season (September to November) and rainy (April to June). In laboratory the crabs were identified, separated according to sex and measured. A total of 610 samples were captured, with 453 males and 157 females. The average size of carapace width (CW) was significantly different (p < 0.05) between males (17.21 ± 3.68 mm) and females (15.06 ± 3.18 mm). The distribution of the crabs in size classes was unimodal for both sexes. The morphological sexual maturity obtained for males was 12.42 mm CW and females was 10.05 mm CW. The sex ratio for the population was 1:0.35 (male: female), with significant difference from the expected ratio of 1:1. The heterochely was observed only in males of the species (224 right-handed and 229 sinister). Subsequently, other on-site observations were carried out monthly, from February/2011 to January/2012 to observe ovigerous females and determine the reproductive period. Females with eggs were observed only from March to June, corresponding to the rainy season in the region. The results found in the present study are similar to those observed in other populations of violinist crabs and suggest that the population is stable in the environment. The present study provides subsidies for the conservation of the species in the Igaraçu River.O presente estudo teve como objetivo investigar a biologia populacional de Minuca mordax no Rio Igaraçu, Parnaíba, PI, analisando a distribuição de frequência em classes de tamanho, período reprodutivo, crescimento relativo, maturidade sexual morfológica, razão sexual e heteroquelia. Os animais foram coletados manualmente de forma aleatória por duas pessoas durante 1 hora, nos meses representativos da estação seca (setembro a novembro) e chuvosa (abril a junho). Em laboratório os caranguejos foram identificados, separados quanto ao sexo e mensurados. Um total de 610 exemplares foi capturado, sendo 453 machos e 157 fêmeas. O tamanho médio da largura de carapaça (LC) diferiu significativamente (p<0,05) entre machos (17,21 ± 3,68 mm) e fêmeas (15,06 ± 3,18 mm). A distribuição dos caranguejos em classes de tamanho foi unimodal para ambos os sexos. A maturidade sexual morfológica obtida para os machos foi de 12,42 mm de LC e para as fêmeas foi de 10,05 mm de LC. A razão sexual para a população foi de 1:0,35 (macho:fêmea), sendo verificada diferença significativa da proporção esperada de 1:1. A heteroquelia foi verificada apenas nos machos da espécie (224 destros e 229 sinistros). Posteriormente, outras observações in loco foram realizadas mensalmente, de fevereiro/2011 a janeiro/2012 para observação de fêmeas ovígeras e determinação do período reprodutivo. Fêmeas com ovos foram observadas apenas nos meses de março a junho, correspondendo ao período chuvoso da região. Os resultados encontrados no presente estudo são semelhantes aos observados em outras populações de caranguejos violinistas e sugerem que a população se encontra estável no ambiente. O presente estudo fornece subsídios para a conservação da espécie no manguezal do Rio Igaraçu

UTILIZAÇÃO DE INDICADORES DE VIABILIDADE ECONÔMICA NA PRODUÇÃO DE TILÁPIA (OREOCHROMIS NILOTICUS) EM SISTEMA DE RECIRCULAÇÃO: ESTUDO DE CASO DE UMA PISCICULTURA DE PEQUENA ESCALA EM PARNAÍBA-PI

This study aimed to analyze the economic viability of tilapia farming (Oreochromis niloticus) using a small-scale recirculating water system in the municipality of Parnaiba-PI, Brazil. We verified the marketing data regarding the economic viability of two production cycles, using three 2.5 x 5.7 x 0.7 meter tankss, with a final weight of 500 grams. With the data obtained, the annual production of 660 kg after two cycles of fattening of 165 days were estimated. Indicators such as gross revenue, operating income, gross margin, profitability index, leveling point, net present value, benefit cost ratio, payback, internal rate of return and sensitivity analysis were analyzed. The implementation cost was of R$9,370.94. Given that the return investment will occur in the sixth month of the fifth year, the Net Present Value (NPV) is of R$ 2.759.55, the leveling point is of 38.20% and the Internal Rate of Return (IRR) will be of 19.40%. With this, the project can be considered economically viable, provided it is not the only source of family income, since it is able to generate a monthly income equivalent to R$ 226.91

Lectin from &lt;em&gt;Canavalia brasiliensis&lt;/em&gt; Seeds (ConBr) Is a Valuable Biotechnological Tool to Stimulate the Growth of &lt;em&gt;Rhizobium tropici&lt;/em&gt; &lt;em&gt;in Vitro&lt;/em&gt;

To study the interactions between a &lt;em&gt;Rhizobium tropici&lt;/em&gt; strain and lectins isolated from the seeds of &lt;em&gt;Canavalia ensiformis&lt;/em&gt; (ConA) and &lt;em&gt;Canavalia brasiliensis&lt;/em&gt; (ConBr), a lectin fluorescence assay was performed. In addition, an experiment was designed to evaluate the effect of the two lectins on bacterial growth. Both lectins were found to bind to &lt;em&gt;R. tropici&lt;/em&gt; cells, but the interactions were inhibited by D-mannose. Interestingly, only ConBr stimulated bacterial growth in proportion to the concentrations used (15.6–500 µg/mL), and the bacterial growth stimulation was inhibited by D-mannose as well. Structure/Function analyses by bioinformatics were carried out to evaluate the volume and carbohydrate recognition domain (CRD) configuration of ConA and ConBr. The difference of spatial arrangement and volume of CRD may indicate the variation between biological activities of both lectins. The results suggest that ConBr could be a promising tool for studies focusing on the interactions between rhizobia and host plants

Comentarios a una sentencia anunciada : el proceso Lula

El centenar de textos que conforman este libro -escritos por un movimiento de prestigiosos/as juristas y abogados- desgranan el procedimiento al que fue sometido Lula. En la opinión de las y los autores de los artículos las normas no fueron observadas, y su inobservancia llevó a que se dictaminase una decisión injusta. Frases del estilo "Voy a tomar una decisión revolucionaria, dejando de lado la ley, porque por la ley no se puede condenarlo de ninguna manera”, dichas en los juicios por las más altas autoridades judiciales militares y civiles, hoy son conocidas gracias a quienes se abocaron al trabajo de escuchar los audios de aquellas sesiones, nutriendo las reflexiones que argumentan sobre el imperativo de la hora: restablecer el estado de derecho y absolver al presidente Lula Da Silva