The distribution of juvenile Pagellus erythrinus (Linnaeus, 1758) species was studied by the abundance, density and habitat preferences in the shallow waters of Gökçeada. Fish samples were obtained in experimental beach seine and beam trawl surveys carried out between 2013 June to 2014 May in the shallow waters of Gökçeada. To understand the habitat preferences of the species, sediment samples ...

all experiments in this study were carried out in a flume which was located in the hydraulic laboratory of technical faculty in guilan university. the wave flume was 12 m long, 0.5 m wide, 0.5 m high and equipped with a wave-producing system and ultrasonic sensors. the objectives of current experimental study are to investigate sediment transport, bed formation and sustainability of sandy beach...

Pecten jacobaeus is an exploitable bivalve, whose populations have greatly declined in the main Mediterranean fisheries since the mid ‘80s. A substantial population of the species was studied in the marine Lake Vouliagmeni (Korinthiakos gulf, Greece). The population density and the spatial distribution of P. jacobaeus were estimated in the lake with line transect sampling by SCUBA diving, a met...

in this paper the telemac-3d model has been hired to simulate and study the high waves’ interaction with coastal structures. therefore a special arrangement of telemac-3d has been prepared in this study to simulate wave generation, coastal processes, wave set-up and overtopping over coastal structures. experimental data has been used to verify this arrangement of the model. thereafter, the mode...

The objective of this paper is to present a downsized prototype of an Autonomous Underwater Vehicle (AUV) designed with the idea of dealing with cooperative tasks involving multiple agents. The entire system has been designed for marine and underwater environmental surveillance and protection. The agents provide an interesting point in the surveillance of shallow coastal waters and shallow wate...

Offshore western Svalbard plumes of gas bubbles rise from the seafloor at the landward limit of the gas hydrate stability zone (LLGHSZ; 400 m water depth). It is hypothesized that this methane may, in part, come from dissociation of gas hydrate in the underlying sediments in response to recent warming of ocean bottom waters. To evaluate the potential role of gas hydrate in the supply of methane...