Amphibia, Anura, Brachycephalidae, Ischnocnema verrucosa Reinhardt and Lütken, 1862: Distribution extension to northeastern Brazil

Herein I present a new geographical record of Ischnocnema verrucosa Reinhardt and Lütken, 1862 for northeastern Brazil and briefly discuss the new record with a previous record of similar characteristics. © 2010 Check List and Authors.

Amphibia, anura, hylidae, hypsiboas raniceps cope, 1862: Distribution extension

Hypsiboas raniceps is a large treefrog typically found in the Cerrado and Caatinga biomes. Here we provide information about new records of this species in the Atlantic Forest and raise some hypotheses that could explain the late record of this species in this biome. © 2010 Check List and Authors.

Production strategies for short term grow-out of the Amazon River prawn Macrobrachium amazonicum (Heller 1862) in ponds

The aim of this study was to evaluate the effect of stocking ponds using graded and ungraded juveniles and performing drained and combined harvesting on the production of M. amazonicum. A randomized completed-blocks design with 4 treatments (farming strategies) and 3 replicates was used. Treatments were: Upper size-graded juveniles, Lower size-graded juveniles, Ungraded juveniles, all with total drained harvesting, and Combined Harvesting (ungraded juveniles). Twelve earthen ponds were stocked at 40 juveniles.m -2, according to the treatment. After 3.5 months prawns were completely harvested. Lower size-graded prawns showed smaller average weight (3.37 ± 0.25 g) than upper size-graded (4.03 ± 0.40 g) and ungraded ones (3.80 ± 0.16 g). Survival percentage varied from 68 ± 9 to 76 ± 10, productivity was slightly higher than 1,000 kg.ha -1 and apparent feed conversion rate varied from 3.0 ± 0.7 to 3.7 ± 1.3. These parameters did not differ among the farming strategies. The best strategy for short term grow-out M. amazonicum in earthen ponds is stocking ungraded juveniles and performing total harvesting by draining ponds at the end of rearing cycle. Grading juveniles before stocking and selective-harvesting managements are not advantageous because they increase costs and do not improve any production parameter.

Effects of artificial substrate and night-time aeration on the water quality in Macrobrachium amazonicum (Heller 1862) pond culture

The effects of artificial substrate and night-time aeration on the culture of Macrobrachium amazonicum were evaluated in 12 ponds stocked with 45 prawns m-2. A completely randomized design in 2 × 2 factorial scheme with three replicates was used. The combination of factors resulted in four treatments: with substrate and aeration (SA), with substrate and without aeration (SWA), without substrate and with aeration (WSA) and without substrate and aeration (WSWA). The presence of substrate in SA and SWA treatments reduced suspended particles (seston) by ~17.3% and P-orthophosphate by ~50%. The use of aerator (WSA and SA treatments) significantly (P < 0.05) increased the concentration of dissolved oxygen, suspended particles and nutrients in the pond water. These results indicate that the effect of substrate on turbidity and total suspended solids (TSS) values is opposite to the effect of the aerator. The aerators in semi-intensive grow-out M. amazonicum farming lower water quality because they increased the amount of detritus and nutrients in the pond water. On the other hand, the use of artificial substrate reduces turbidity values, chlorophyll a, TSS and P-orthophosphate concentrations. Therefore, the combination of substrate addition and night-time aeration is not interesting because they have opposite effects. © 2013 John Wiley & Sons Ltd.

Desenvolvimento embrionário do camarão-da-amazônia Macrobrachium amazonicum (Heller, 1862) (Crustacea, Decapoda, Palaemonidae)

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Efeito da alimentação e densidade de estocagem no desempenho zootécnico e perfil celular do hepatopâncreas do camarão-da-amazônia Macrobrachium amazonicum (Heller, 1862) (Crustacea, Palaemonidae)

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Aspectos estruturais do hepatopâncreas do camarão de água doce Macrobracium amazonicum (Heller, 1862)

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Revista da escola normal de São Carlos (1916-1923): um estudo sobre idéias e práticas educacionais

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Um estudo do processo de reconhecimento histórico: o caso de Arthur Cayley

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Fora do palco, dentro da vida: o contista Arthur Azevedo e o Rio de Janeiro de sua época

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Teatro a vapor de Arthur Azevedo: um olhar satírico sobre o Rio de Janeiro do início do século XX

Pós-graduação em Estudos Literários - FCLAR

O engenheiro Antônio Soares Romêo e a modernização urbana de Ribeirão Preto nos tempos do café (1913-1923)

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Germanismo e nazismo na colônia alemã de Presidente Venceslau (1923-1945)

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Intelectualidade e imprensa negra paulista: os casos do Getulino e Progresso (1923-1931)

Pós-graduação em História - FCLAS

Machado de Assis: Cronista d'O Futuro (1862-1863)

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)