USE OF GEOGRAPHIC INFORMATION SYSTEM (GIS) IN SITE SELECTION FOR SUSTAINABLE BLACK MUSSEL (Mytilus galloprovincialis Lamarck, 1819) CULTURE
Project no. 21932 · Status: Kapanmış (Yayın bekleniyor) · 2020
Summary
<p>This study was conducted at a black mussel (<em>Mytilus galloprovincialis </em>Lamarck,1819) farming facility with an annual project production capacity of 500 tons/year located in the Balıklıova region of Urla District, İzmir Province.</p><p>Mussels in the work area focused on the growth and survival rates, meat yield, condition index, spat efficiency of the black mussel (<em>Mytilus galloprovincialis</em> Lamarck, 1819), and the environmental parameters (water temperature, salinity, chlorophyll-a, Total Particulate Matter, Particulate Organic Matter, Particulate Inorganic Matter, nitrite, silica, ammonium, phosphate, nitrate) that affect these factors. These parameters were analyzed and mapped using Geographic Information Systems. While the spat quantity, environmental parameters, meat yield, and condition index were shown using IDW distribution maps, the spat quantity was also represented with a Kernel (density) map. Clock analysis was applied to determine the growth parameters in mussels the different materials (polypropylene (PP), polyethylene (PE), and cotton mesh) . Additionally, the bathymetric map of the study area was created using the 3D analyst module. All mapping processes in the study were carried out using ARCGIS 10.8 and QGIS 3.2 software.</p><p>As a result of the research, the highest number of mussel spat was found in collectors placed in December and harvested in March, with counts ranging from 7,521 to 8,456 in the southsouthwest (SSW) direction of the facility, whereas no mussel spat was observed in collectors placed in November and April It was determined that the difference in spat quantity between stations was not statistically significant (p>0.05).</p><p>To determine the growth and survival rates of the mussels, they were placed in polypropylene (PP), polyethylene (PE), and cotton nets and measured monthly. The best growth was observed in mussels placed in cotton nets. It was determined that the best survival rate was in mussels placed in polypropylne (PP) (p<0.05).</p><p>The highest meat yield in mussels was recorded in August (26.7%), while the lowest was in October (12.8%). It was found that the meat yield the data obtained at the 4th station significantly differed from the 1st and 2nd stations (p˂0.05).</p>