A century after the opening of the Panama Canal, a second inter-oceanic passage is set to be built in Central America, this time in Nicaragua. The ambitious and astronomically expensive project promises to bring economic opportunity to a poor country but it also carries risks to its tropical ecosystems. Will the new waterway ultimately link two oceans or divide a continent? Michael Gross invest...

A bloom of Karenia brevis Davis developed in September 2007 near Jacksonville, Florida and subsequently progressed south through east Florida coastal waters and the Atlantic Intracoastal Waterway (ICW). Maximum cell abundances exceeded 106 cells L-1 through October in the northern ICW between Jacksonville and the Indian River Lagoon. The bloom progressed further south during November, and termi...

Tidal creeks are widespread and abundant estuarine ecosystems, yet their ecological relevance is undervalued as reflected by the lack of research on these systems relative to larger, better-known estuarine systems (e.g. the Chesapeake Bay, the Albemarle–Pamlico Sound System, Florida Bay, to name a few). These better-known large estuaries contain numerous tidal creeks which, in comparison to the...

This article presents the use of a computer application codenamed “NEPTUN” to ascertain waterway parameters modernised Świnoujście–Szczecin waterway. The designed program calculates individual risks in selected sections fairway depending on input data, including ship, available water area, and positioning methods. collected data used for analyses modules are stored SQL server shared access. Vec...

Abstract Aids to navigation are established assist vessels in the with special importance narrow channels, rivers, or areas dangers navigation. Whether design of aids (AtoN) system is optimum depends on ship positioning, which affected by several factors: waterway geometry, metocean conditions, ship, pilotage, and AtoN themselves, being a crucial part waterway. Optimizing type signals distance ...