Tolerance to the air exposition test of Hoplias lacerdae larvae and juvenile during its initial development

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Desenvolvimento larval de Eriphia gonagra (Fabricius, 1781) (Decapoda, Xanthidae), em laboratório

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

Desenvolvimento larval de Dardanus insignis (Saussure) (Crustacea, Decapoda, Diogenidae), em laboratório

The developmental stages of Dardanus insignis (Saussure, 1858) from first through eighth zoea and megalopa are described and illuslraled. The experiments were carried out involving 100 larvae, obtained from ovigerous females collected on the north littoral of the state of São Paulo, Brazil. The larvae were kept in individual containers, with water of 34 salinity and fed with freshly hatched nauplii of Artemia; room temperature was maintained at 25±1ºC. The larval characters of this species are compared with Dardanus arrosor (Herbst, 1796). the only species of the genus that has also heen reared in laboratory.

Post-embrionic development of the digestive tube of Dermatobia hominis (Linnaeus) (Diptera, Cuterebridae)

The digestive tube of 2nd and 3rd instar larvae, pupae and newly emerged adults of Dermatobia hominis (Linnaeus, 1781) was studied anatomically. The specimens were dissected in buffer saline under a stereomicroscope, and the digestive tubes were placed on slides and fixed in 10% buffered formalin. Each tube was measured using a micrometric eye piece, and drawings were made with camera lucida. The results showed that the midgut, the hindgut and the Malpighian tubules with their ducts grow gradually during the larval development. The oesophagus and the salivary glands with their ducts grow only during the moult from the 2nd to the 3rd instar. In the pupal period, salivary glands grow gradually but disappeared after the 20th day. After metamorphosis the digestive tube regressed. This is expected since adult D. hominis lives about nine days without feeding. This fly, similar to other calyptratae muscoid flies shows no vestige of a crop during all post-embrionic development, and the adult has no salivary glands.

Desenvolvimento larval de Macrobrachium birai Lobão, Melo & Fernandes (Crustacea, Decapoda, Caridea, Palaemonidae) em laboratório

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Postembryonic development of Macrobrachium petronioi (Caridea : Palaemonidae) in the laboratory

Macrobrachium petronioi, a native Brazilian fresh-water shrimp, was captured along the coast of Rio Branco, Cananeia, São Paulo State, Brazil. The eggs were green-black in early development and the average size was 1.21 mm by 0.98 mm. Macrobrachium petronioi has no free-swimming larval phase. However, newly hatched larvae possessed several zoea I characters. Therefore, they were clearly more developed than newly hatched larvae of other species of Macrobrachium with prolonged larval development. The average duration of larval development in M. petronioi was 5.5 days. During early development, the larvae subsisted on stored yolk. After the third molt, the postlarvae accepted food. The three zoeal stages prior to the postlarval stage were described and characterized, with detailed morphological analyses. This species has a partially abbreviated type of development. The larval development of M. petronioi is distinguished from that of M. potiuna.

Larval stages of Pyromaia tuberculata (Lockington, 1877) (Decapoda, Majidae, Inachinae) reared in the laboratory

The larval development of Pyromaia tuberculata (Lockington, 1877) is described from specimens reared in the laboratory. Larvae were obtained from ovigerous females collected by trawl in Ubatuba, São Paulo state, Brazil. Rearing was carried out at 24 +/- 1 degrees C in 35 parts per thousand S. The larvae pass through two zoeal stages before moulting to the megalopa. A comparison is made with previously studied majid species occurring in the southern and southeastern regions of Brazil.

Chemical analysis of different larval instars and tissues of Pachycondyla (=Neoponera) villosa (Hymenoptera: Formicidae, Ponerinae)

Chemical analyses of complete larvae of the first to third instar and cuticle, fat body and salivary glands extracts of fourth instar larvae using gas chromatography and gas chromatography-mass spectrometry, were performed upon Pachycondyla villosa. The results revealed that P. villosa larvae do not produce a pheromone, as only fatty acids and n-alkanes were detected. After quantifying the identified compounds, it was determined that the fat body is the main place of storage and/or production of the cuticular hydrocarbons. It was also observed that the absolute quantity of cuticular hydrocarbons increases progressively during larval development. Inferences about the transport behavior of matured larvae to the pupation place and the colony odor are discussed.

Desenvolvimento embrionário e larval de Brycon gouldingi (Teleostei, Characidae)

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Atividade de enzimas digestivas de Lithobates catesbeianus durante o desenvolvimento larval

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Biologia de Spodoptera frugiperda (J. E. Smith, 1797) (Lepidoptera: Noctuidae) exposta a inseticidas durante a fase larval

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Processos auto-organizados: efeitos de substâncias químicas que agem no sistema nervoso sobre o desenvolvimento e padrão de dispersão larval pós-alimentar de dípteros (Calliphoridae e Muscidae)

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

Aspectos da biologia larval de Chrysomya megacephala (F.) (Diptera : calliphoridae): curva de crescimento e período de mais rápido desenvolvimento larval

Pós-graduação em Ciências Biológicas (Zoologia) - IBRC

Alimentação do camarão-da-amazônia Macrobrachium amazonicum durante a fase larval

Pós-graduação em Aquicultura - FCAV

Effect of tank colour on larval performance of the Amazon River prawn Macrobrachium amazonicum

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)