[논문]해양 생태계 부착 미세조류 채집을 위한 소재 비교 연구

박재영; 기장서

doi:10.4217/opr.2023003

해양 생태계 부착 미세조류 채집을 위한 소재 비교 연구
Comparison of Materials for Collection of Adhesive Microalgae in Marine Ecosystems 원문보기

Ocean and polar research, v.45 no.1, 2023년, pp.1 - 9

박재영 (상명대학교 융합공과대학 생명공학과) , 기장서 (상명대학교 융합공과대학 생명공학과)

Abstract ▼ AI-Helper

Marine microalgae have different collection methods depending on their habitat. In the case of adhesive microalgae, it is difficult to separate organisms from the substrate surface, and contamination is likely to occur during the sampling process. In this study, we analyzed the collection efficiency of adhesive microalgae using three artificial fiber materials (nylon, blend fabric, and viscose rayon). Each fiber showed different fiber diameter and pore characteristics (nylon 26.09 ㎛, blend fabric 56.6 ㎛, viscose rayon 101.3 ㎛). In addition, attached organisms were collected on the surface of artificial substrates at Bukseong Port in Incheon using each tested fiber material. After that, we investigated the population and species composition. The highest number of cells was found in nylon, which was 8 times higher than in the least collected viscose rayon material. In addition, we identified 24 microalgal species from the substrate, demonstrating that the species composition differed from that of surface water. The number of collected microalgae species varied depending on the fiber materials, with nylon containing all the adhesive microalgae. In contrast, only a few microalgae were observed in other fibers. These results suggest that, of the tested fibers, nylon material may be suitable for collecting adhesive microalgae. As a result, this study may be useful for future research on adhesive microalgae.

주제어

표/그림 (7)

그림 Fig. 1. Sampling site of the adhesive microalgae and phytoplankton. A black dot represents the sampling spot. A red circle shows the attached substrate of the sampling site and the degree of biofouling to the naked eye
그림 Fig. 2. Pore and fiber size of each material for adhesive microalgae sampling. (A) Tissue images were observed with a stereoscopic microscope with a scale bar of 1,000 μm, (B) fiber size according to the tested materials; and (C) pore size based on materials. Nylon is 100% nylon, BF is a blend of polypropylene (20%) and viscose rayon (80%), and VR is 100% viscose rayon
그림 Fig. 3. Cell numbers of the adhesive microalgae and the phytoplankton detected in this study. (A) Cell numbers of the adhesive microalgae from the attached substrate by collecting each material; and (B) abundance of phytoplankton in surface water near the sampling site. Nylon is 100% nylon, BF is a blend of polypropylene (20%) and viscose rayon (80%), and VR is 100% viscose rayon
표 Table. 1 List of microalgae species present in the surface water column and attached substrate in this study
그림 Fig. 4. A Venn diagram of the number of adhesive microalgae detected using each material. The adhesive microalgae that appeared in this study are shown by material. Adhesive microalgae from Nylon included species from blended fiber (BF) and viscose rayon (VR)
표 Table. 1. Continued
그림 Fig. 5. Biodiversity from three tested sampling materials. (A)-(C) Pie chart of the proportion of adhesive microalgae species appearing for each material [(A) Nylon, (B) BF: Polypropylene (20%) + viscose rayon (80%), (C) VR: Viscose rayon (100%)] and (D) is the adhesive microalgal species diversity index according to three sampling materials

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