We propose a framework for object extraction with accurate boundaries. A multilayer perceptron is used to identify seed points through examples, and regions are extracted and localized using a locally coupled network with weight adaptation. A functional system has been developed and applied to hydrographic region extraction from Digital Orthophoto Quarter–Quadrangle images.

The Amazon Basin is the largest hydrographic basin on the planet, and the dynamics of its aquatic microorganisms strongly impact global biogeochemical cycles. However, it remains poorly studied. This metagenome project was performed to obtain a snapshot of prokaryotic microbiota from four important lakes in the Amazon Basin.

Global prediction of planktic foraminiferal fluxes from hydrographic and productivity data S. Žarić, M. Schulz, and S. Mulitza DFG Research Center Ocean Margins, University of Bremen, P. O. Box 330440, 28334 Bremen, Germany Received: 13 June 2005 – Accepted: 27 June 2005 – Published: 22 July 2005 Correspondence to: S. Žarić ([email protected]) © 2005 Author(s). This work is licensed under a C...

A new species of Seticornuta from Brazil is described and illustrated, the first record of this genus for the Brazilian fauna. This new species was found in a study that aimed to enhance knowledge of the Brazilian fauna of Metopiinae, analysing samples from the hydrographic basin of Rio Mogi Guaçu. A diagnosis, along with distribution information for Seticornuta species are provided.

In the paper the Author describes the general concept of a Universal Maritime Data Model (UMDM) a common representation of all data objects and relationships occurring in the maritime domain. Implementation of IMO’s e-Navigation strategy leads to a larger variety and higher volume of information and increased information exchange due to globalization. Consequently there is a need to handle info...

Understanding how animals alter habitat use in response to changing abiotic conditions is important for effective conservation management. For bull sharks (Carcharhinus leucas), habitat use has been widely examined in the eastern and western Gulf of Mexico; however, knowledge of their movements and the factors influencing them is lacking for populations in the more temperate north-central Gulf ...