Prosomal-width-to-weight relationships in American horseshoe crabs (Limulus polyphemus): examining conversion factors used to estimate landings

Horseshoe crabs (Limulus polyphemus) are valued by many stakeholders, including the commercial fishing industry, biomedical companies, and environmental interest groups. We designed a study to test the accuracy of the conversion factors that were used by NOAA Fisheries and state agencies to estimate horseshoe crab landings before mandatory reporting that began in 1998. Our results indicate that the NOAA Fisheries conversion factor consistently overestimates the weight of male horseshoe crabs, particularly those from New England populations. Because of the inaccuracy of this and other conversion factors, states are now mandated to report the number (not biomass) and sex of landed horseshoe crabs. However, accurate estimates of biomass are still necessary for use in prediction models that are being developed to better manage the horseshoe crab fishery. We recommend that managers use the conversion factors presented in this study to convert current landing data from numbers to biomass of harvested horseshoe crabs for future assessments

Synthesis of high-oxidation Y-Ba-Cu-O phases in superoxygenated thin films

It is known that solid-state reaction in high-pressure oxygen can stabilize high-oxidation phases of Y-Ba-Cu-O superconductors in powder form. We extend this superoxygenation concept of synthesis to thin films which, due to their large surface-to-volume ratio, are more reactive thermodynamically. Epitaxial thin films of $\rm{YBa_2Cu_3O_{7-\delta}}$ grown by pulsed laser deposition are annealed at up to 700 atm O$_2$ and 900$^\circ$C, in conjunction with Cu enrichment by solid-state diffusion. The films show clear formation of $\rm{Y_2Ba_4Cu_7O_{15-\delta}}$ and $\rm{Y_2Ba_4Cu_8O_{16}}$ as well as regions of $\rm{YBa_2Cu_5O_{9-\delta}}$ and YBa$_2$Cu$_6$O$_{10-\delta}$ phases, according to scanning transmission electron microscopy, x-ray diffraction and x-ray absorption spectroscopy. Similarly annealed $\rm{YBa_2Cu_3O_{7-\delta}}$ powders show no phase conversion. Our results demonstrate a novel route of synthesis towards discovering more complex phases of cuprates and other superconducting oxides.Comment: Accepted for publication in Physical Review Material

Técnica de criação de Grapholita molesta (Busck, 1916) (Lepidoptera: Tortricidae) em laboratório utilizando dieta artificial para a produção de insetos visando estudos de comportamento e controle.

Uma técnica para criação e obtenção de todas as fases de desenvolvimento da mariposa-oriental Grapholita molesta (Busck, 1916) (Lepidoptera: Tortricidae) em laboratório (24 +- 2ºC; UR: 70 +- 10%; fotofase: 16h) utilizando dieta artificial foi avaliada e descrita.bitstream/CNPUV/9452/1/bop013.pdfISSN 1981-1004. Disponível também no formato online

Efeito da aplicação de inseticidas na floração da macieira sobre Apis mellifera L. (Hymenoptera: Apidae).

Os inseticidas Bacillus thuringiensis (Dipel 100mL.100L-1) e Novaluron (Rimon 100 CE 40 ml.100L-1) são registrados para o controle de Lepidoptera na cultura da macieira. O objetivo deste trabalho foi avaliar o efeito da aplicação destes inseticidas no período de floração da macieira sobre Apis mellifera. O experimento foi conduzido na safra 2014/2015 em Fraiburgo, SC, utilizando pomares de macieira com 5 hectares

Eficiência de atrativos alimentares na captura de adultos de Anastrepha fraterculus (Wied., 1830) (Diptera: Tephritidae) na cultura da ameixeira (Prunus domestica).

Neste trabalho, foi avaliada a eficiência de atrativos alimentares no monitoramento de adultos de Anastrepha fraterculus na cultura da ameixeira

Mitefauna (Arachnida: Acari) associated to grapevine, Vitis vinifera L. (Vitaceae), in the municipalities of Bento Gonçalves and Candiota, Rio Grande do Sul, Brazil.

The mitefauna associated to Merlot and Chardonnay grapevine cultivars and associated plants in the municipalities of Bento Gonçalves and Candiota, Rio Grande do Sul was investigated. The study was developed between October 2006 and September 2007, where 20 grapevine plants were randomly chosen from each municipality and monthly sampled. Three leaves of each plant were taken. A total of 11,598 mites belonging to 14 families and to 52 species were found. Fifty-nine percent of the total specimens were collected in Candiota, being 93% associated to the Merlot cultivar. Higher species richness was observed on associated plants. Phytoseiidae showed the highest species richness, with ten species, and Eriophyidae showed the highest abundance, with 8,675 specimens. Calepitrimerus vitis (Nalepa, 1905) and polyphagotarsonemus latus (Banks, 1904) were the most common phytophagous mites, while Neoseiulus californicus (McGregor, 1954) and Pronematus anconai (Baker, 1943) were the most common predators

Bioecologia e controle da pérola-da-terra Eurhizococcus brasiliensis (Hempel, 1922) (Hemiptera: Margarodidae) na cultura da videira.

bitstream/item/87061/1/bioecologias.pd