hrvatski

Nove tehnike i tehnologije u biološkom istraživačkom radu u podmorju Hrvatske

Marine research is far more demanding physically and technically than terrestrial, and presents a completely different set of obstacles, with the result that marine biologists are greatly limited in the amount of time they can be physically present in the field compared to terrestrial biologists. While autonomous diving using SCUBA enables researchers to experience the natural marine environment directly, such dives generally (1) must be limited to two hours per day, (2) be carried out only in surface waters, (3) are exposed to physical and medical risks, (4) may require years of practical experience before the diver can be scientifically proficient, and (5) cannot be easily georeferenced. One alternative to SCUBA, remote imaging at or above the water surface, is also impossible or problematic in marine systems ; e.g. aero- or satellite imaging is feasible only for the upper few meters of depth, and multibeam sonograms of irregular or sloping ground are difficult to georeference and in many cases are difficult to translate into physical habitat types. Some of these limitations are overcome in in situ remote sensing and are currently being utilized successfully in Croatia for marine biological research. Two such examples are remotely operated and automated underwater vehicles, and surface-based underwater videography, whose benefits include: (1) financing is possible now under the European FP 7 program “ Developing the Croatian Underwater Robotics Research Potential” , (2) time underwater is essentially unlimited, (3) low-light video technology allows high resolution images at virtually any sea depth ; and (4) accurate geopositioning allows measurement of distances and precise return to previous locations for regular monitoring (e.g. of seagrass meadows in Kornati National Park, which we discuss in detail). The future of marine biology research in Croatia will require greater scientific collaboration and greater creativity in the development of new technologies.

nove tehnike i tehnologije; geopozicionirana podmorska videografija; praćenje stanja morskih cvjetnica; Hrvatska

nije evidentirano

engleski

New techniques and technologies in marine biological research in Croatia

Marine research is far more demanding physically and technically than terrestrial, and presents a completely different set of obstacles, with the result that marine biologists are greatly limited in the amount of time they can be physically present in the field compared to terrestrial biologists. While autonomous diving using SCUBA enables researchers to experience the natural marine environment directly, such dives generally (1) must be limited to two hours per day, (2) be carried out only in surface waters, (3) are exposed to physical and medical risks, (4) may require years of practical experience before the diver can be scientifically proficient, and (5) cannot be easily georeferenced. One alternative to SCUBA, remote imaging at or above the water surface, is also impossible or problematic in marine systems ; e.g. aero- or satellite imaging is feasible only for the upper few meters of depth, and multibeam sonograms of irregular or sloping ground are difficult to georeference and in many cases are difficult to translate into physical habitat types. Some of these limitations are overcome in in situ remote sensing and are currently being utilized successfully in Croatia for marine biological research. Two such examples are remotely operated and automated underwater vehicles, and surface-based underwater videography, whose benefits include: (1) financing is possible now under the European FP 7 program “ Developing the Croatian Underwater Robotics Research Potential” , (2) time underwater is essentially unlimited, (3) low-light video technology allows high resolution images at virtually any sea depth ; and (4) accurate geopositioning allows measurement of distances and precise return to previous locations for regular monitoring (e.g. of seagrass meadows in Kornati National Park, which we discuss in detail). The future of marine biology research in Croatia will require greater scientific collaboration and greater creativity in the development of new technologies.

new techniques and technologies; geopositioned underwater videography; seagrass monitoring; Croatia

nije evidentirano