ULTIMO AGGIORNAMENTO BANCA DATI: 13/09/2024 13:00:57
ABSTRACT: To make use of underwater space especially in a Rias coast whose sea floor is steep and deep, a marine cultivation facility with function of submerging and surfacing, ""ARTIFICIAL SEA FLOOR"" was developed. The facility has a floating shelf structure of 20m x 20m at 4m depth layer and a machinery ...
ABSTRACT Persistent solid marine wastes from ocean and land sources give rise to impede the safe surface passage and foul our coastal scenery. To ultimately mitigate the solid waste problems, the Korea government (the Ministry of Maritime Affairs and Fisheries) has started in the marine debris issue ...
ABSTRACT: Most marine accidents related to vessels are the results of human error, such as mis-detection, mis-judgment and mis-operation. A particular example is the frequent collisions that occur between fishing vessels and cargo vessels in the waters off Japan that often result in the loss of life. ...
ABSTRACT: The Marino-Forum 21 initiated the research project on development of fishing grounds by utilizing Deep Ocean Water (called DOW here after) of 200 m deep. We plan to enhance the component of nutrient salts in the sea area concerned by discharging DOW into the euphotic layers aiming ultimately ...
ABSTRACT: The discharge of deep ocean water, which is low water temperature and high nutrient concentration, may restore seaweed bed from barren ground condition. The purpose of this research is to estimate the effects of seaweed bed restoration using deep ocean water discharge with an enclosed structure ...
ABSTRACT We developed a multipurpose freezing simulation model that can be used as a tool to provide a relatively evaluation of proposed countermeasures against port freezing during winter season and examined its application to a field site. This freezing simulation consists of three submodels: i) ...
The present stage of shelf development is characterized by the increase of involvement of its resources in economic use, by expansion of areas of oil and gas production and offshore geological exploration, by strengthening of impact of industrial activity onto the environment. The severe climate conditions ...
ABSTRACT: The Inclusive Impact Index “Triple I” is a metric developed to assess environmental sustainability and economic feasibility of ocean utilization technologies to predict their public acceptance. Ecological footprint and environmental risk assessment, which are the basis of the Triple I, are ...
ABSTRACT A numerical code is developed to predict the performance of floating fish cage systems. The numerical scheme is based on lumped mass method and the acceleration technique for particle method. It can treat interaction among fish cages and complicated mooring system consisted from synthetic ...
ABSTRACT: This paper presents a design of submerged breakwater, which functions as an eco-structure in marine environment. Newly patented blocks were applied to arm the submerged breakwater for providing inhabitable space of fisheries as well as its stability. To investigate the wave transmission of ...
ABSTRACT: This is a brief review paper to introduce the Marino-Forum 21 project for creating new fishing ground by enhancement of marine primary production using artificial upwelling. The first term was performed from 2000 through 2004 to develop a prototype ocean nutrient enhancer. In the first part ...
ABSTRACT: For the purpose to make a fishing ground in the sea by increasing the primary production, The Ocean Nutrient Enhancer (ONE for short) which rises the nutrient-rich Deep Ocean Water (DOW) and discharges it into the euphotic surface layer has been studied. To establish the concept of ONE, various ...
ABSTRACT: An ecological footprint accounting of the prototype ocean nutrient enhancer TAKUMI was performed to assess the sustainability of this type of artificial upwelling technology. The results indicate that the dominant component of the ecological footprint is CO2 emissions from the combustion ...
ABSTRACT: Side-scan sonar observations conducted at Mito artificial habitat site documented the actual positions of both concrete cubic blocks (more than 10,000 units) and scrapped steel boats (43 units) individually. Based on their geographic locations, the concrete cubic artificial reefs could be ...
We developed a multipurpose freezing simulation model that can be used as a tool to provide an evaluation of proposed countermeasures to port freezing during winter and examined its application to a field site. This freezing simulation consists of 3 sub models: Seawater flow field calculation; phase ...
ABSTRACT: So far, there are no successful means to upwell Deep Ocean Water (DOW) artificially and to make a fishing ground in the open sea. The five years project of increasing a primary production and making a new fishing ground by upwelling DOW which is very rich in nutrient salt such as Nitrogen, ...
ABSTRACT Since 1971, artificial reefs of durable concrete structure were constructed and installed as government-subsidized projects for the creation of new fishing grounds in Korean coastal waters. Few reports are available on the reef structure designs suitable for target fish species. Although there ...
ABSTRACT The artificial reefs, which often provide stable environment for the attachment of marine organisms and attract large populations of fish, have been thought of as the an effective way to enhance the biological productivity of the sea floor. Theoretically, the performance of the artificial ...
Background The gibel carp is a fish species with dual reproduction modes, gynogenesis and sexual reproduction, coexisting in mixed diploid-polyploid populations. Following the Red Queen (RQ) assumption, asexual organisms are, due to their low genetic diversity, targets for parasite adaptation. Because ...
This report describes the metabolic and lipidomic profiling of 97 low-molecular weight compounds from the primary metabolism and 124 lipid compounds of the diatom Thalassiosira pseudonana. The metabolic profiles were created for diatoms perturbed for 24 hours with four different treatments: (I) removal ...