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    DETERMINATION OF THE BIOENERGY PRODUCTION CAPACITY FROM BIOCHEMICAL PROFILES OF SOME AQUATIC PHYTOREMEDIATION PLANTS. ENERGY WHILE CLEANING
    (Scibulcom Ltd, 2014) Gunes, A.; Cakar, H.; Akat, O.; Guney, M. A.; Ozkul, B.; Koru, E.; Korkut, A. Y.; Suzer, C.; Cirik, S.; Firat, K.; Saka, S.
    This study aims to research the possibilities of converting some hydrophytes into energy by revaluating them after the harvesting process. These hydrophytes used in the phytoremediation studies disperse naturally in aquatic mediums, sometimes even revealing themselves as invasive species. Chosen hydrophytes samples (Eichorrzia crassipes, Cyperus alternifolius, Lemna minor, Pistia stratiotes, Typha latifolia, Nasturtium officinale,Houttonia cordata) are analysed in terms of oil rate, biochemical profiles which include elaeostearic compositions, COI/T.20/Doc No 17 (capillary column gas chromatography) and in-house methods. The obtained data are analysed in comparison to the elaeostearics rate and compositions of the plants used in biodiesel procurement (canola, soy, palm, sunflower, Botryococcus and Chlorella oils). As a result, it is found that linolenic acid and linoleic acid percentages especially stand forth in the plants Eichornia sp., Cyperus sp., Lemna sp., the stearic and oleic acid percentages are significantly high in Pistia sp., and palmitic elaeostearic percentage is higher in the plants of Houttonia sp. and Nasturtium sp. than the plants currently used in biodiesel procurement, yet the oil rate within their system is lower than these plants. Moreover, it is thought that the plant waste obtained after the harvest carried out in order to ensure the water quality of the systems may in the least meet this deficit.
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    Early osteological development of the fins in the hatchery-reared red porgy, Pagrus pagrus (L. 1758)
    (Wiley-Blackwell Publishing, Inc, 2009) Coban, D.; Suzer, C.; Kamaci, H. O.; Saka, S.; Firat, K.
    The present study was undertaken to establish the normal, healthy features of morphological structures at various developmental stages as achieved under well-defined environmental culture conditions (temperature between 16 and 21 degrees C, salinity 36 ppt, pH around 7.6, and oxygen saturation over 95%) common in aquaculture of the species. The pectoral fin supports began to develop at 2.90 mm total length (TL), followed by those of dorsal fins at 5.5 mm TL, caudal fins at 5.6 mm TL, pelvic fins at 5.9 mm TL and anal fins at 6.0 mm TL. The pelvic fins appeared fully at 7.4 mm TL. Development of dorsal lepidotrichia was first observed at 6.9 mm TL, attaining their final number at 7.6 mm TL. The dorsal spines first appeared at 6.5 mm TL and were complete at 7.4 mm TL. The anal lepidotrichia appeared during the development phase from 6.8 to 8.6 mm TL. At 5.6 mm TL, the upward flexion of the urostyle was initiated. The caudal lepidotrichia formed within the primordial fin at 5.6 mm TL and reached the final count at 7.4 mm TL. The caudal dermatotrichia first appeared at 7.3 mm TL and all forms were observed by 15.5 mm TL. The development pattern of fin supports found in Pagrus pagrus is quite similar to that described for other Sparid species.