Brazilian mangroves cover about 11,100 km 2 and provide a wide range of ecosystem services. Despite their importance, they are one the most impacted ecosystems because combined influences climate change, pollution, direct conversion loss. A major driver environmental impacts is shrimp farming this particularly acute in semi-arid northeast Brazil, where constrained narrow band along ephemeral es...

A mathematical model is used to investigate the role of sedimentation and remineralization in the sediment on nitrogen (N) dynamics in intensive shrimp culture ponds. The model describes the key processes involved in N cycling that underpin the dynamics of total ammoniacal N (TAN), nitrate/ nitrite (NOX) and chlorophyll a (CHL) concentrations and the sediment N pool. These parameters may, in hi...

Emerging Infectious Diseases • www.cdc.gov/eid • Vol. 10, No. 12, December 2004 2261 and Hep-2C derive from the same tissue (human Caucasian larynx carcinoma), while Vero and BGM derive from another organ (Africa green monkey kidney). Thus, Hep-2 and Vero cell lines that we used are likely susceptible to TSV if the virus can infect Hep-2C and BGM as reported by Audelo-del-Valle et al. The diffe...

The impact of information systems on productivity is wide ranging and potentially affects all other activities of a company. This trend extends beyond high-tech companies in Taiwan. The aquacultural industry is finding they can substantially increase productivity and reduce costs by moving process tracking, management and reverse tracking functions online. This paper presents a new radio freque...

White spot syndrome virus (WSSV) is a viral pathogen that has caused significant economic losses in shrimp farming. Variable-number tandem repeats (VNTRs) (open reading frame [ORF] 94, 125 and 75), a large deletion (ORF 23/24) and a transposase were proposed as molecular markers for genotyping. WSSV-infected shrimp Litopenaeus vannamei were collected in 2 Brazilian regions (Santa Catarina and B...