Nội dung được dịch bởi AI, chỉ mang tính chất tham khảo
Mô hình phân bố vi sinh vật eukaryota và tác động tiềm năng của nó đối với ngành thủy sản trong các khu bảo tồn cá của sông Qiantang trong mùa sinh sản
Tóm tắt
Để khảo sát đa dạng sinh học eukaryota của các hệ sinh thái nước trong sông Qiantang, Trung Quốc, vi sinh vật eukaryota trong sông đã được nghiên cứu bằng cách giải trình tự gen 18S rRNA trong mùa sinh sản (tháng 7 đến tháng 8 năm 2018). Bốn mô hình phân bố khác nhau (1. Jiande; 2. Tonglu và Fuyang; 3. Jiubao; 4. Yanguan) của cộng đồng vi sinh vật và tác động tiềm năng của chúng đến hoạt động thủy sản đã được quan sát. Kết quả cho thấy số lượng của phân nhóm Dinophyta và Fungi ở Tonglu và Fuyang thấp hơn so với ba đoạn còn lại, trong khi số lượng của các nhóm Cryptophyta và Chlorophyta cao hơn. Hơn nữa, các khu bảo tồn (Tonglu và Fuyang) đã làm mất ổn định mạng lưới đồng hiện vi sinh vật eukaryota ban đầu. Trong tất cả các yếu tố môi trường được đo lường, nitơ (nitrit, nitrat, amoni), nhiệt độ nước và tổng lượng chlorophyll a đóng vai trò là các yếu tố chính kiểm soát phân bố vi sinh vật eukaryota. Hơn nữa, sự tồn tại của một số loài tảo (ví dụ, Chrysophyceae, Cryptophytes, và Chlorophyceae) và nấm (ví dụ, Rhizophydium) tại Tonglu và Fuyang có lợi cho sự phát triển cá con và chất lượng nước, mặc dù một số loài gây hại (ví dụ, Aphanomyces) cần được chú ý. Nghiên cứu này cung cấp những hiểu biết sâu sắc hơn về việc bảo vệ và sử dụng bền vững sông ngòi.
Từ khóa
#đa dạng sinh học #vi sinh vật eukaryota #sông Qiantang #mùa sinh sản #hoạt động thủy sảnTài liệu tham khảo
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