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Khám Phá Di Truyền Dân Số Của Cá Ngựa Trắng (Holothuria fuscogilva) Tại Bờ Biển Phía Nam Kenya
Tóm tắt
Cá ngựa trắng, Holothuria fuscogilva, phân bố rộng rãi ở các vùng ven biển, bao gồm cả vùng nước xung quanh các rạn san hô và cỏ biển ở khu vực Ấn Độ - Thái Bình Dương. Tại Kenya, loài này phân bố ở các rạn san hô nông với sản lượng khai thác cao hơn được ghi nhận từ khu vực Vanga-Shimoni-Gazi ở bờ biển phía nam Kenya. Mặc dù đã có sự khai thác cao cho xuất khẩu và tình trạng dễ bị tổn thương cũng như có nguy cơ tuyệt chủng theo IUCN và CITES tương ứng, nhưng những quần thể H. fuscogilva của Kenya và khả năng bị ảnh hưởng bởi áp lực đánh bắt chưa được nghiên cứu. Chúng tôi đã ước tính sự đa dạng di truyền và cấu trúc của quần thể H. fuscogilva được lấy mẫu thuận tiện từ ba địa điểm ở bờ biển phía nam Kenya bằng cách sử dụng trình tự gen cytochrome oxidase subunit I (COI) ti thể. Chúng tôi đã ghi nhận được 30 haplotype với 43 vị trí đa hình trong toàn quần thể. Hơn nữa, chúng tôi ước tính sự đa dạng haplotype cao và sự đa dạng nucleotide thấp với các giá trị ước lượng h = 0.970 ± 0.013 và π = 0.010 ± 0.001 tương ứng. Những phát hiện ban đầu này gợi ý một số kết quả quần thể, trong đó có một quần thể khỏe mạnh, cần được xác nhận bằng một nghiên cứu toàn diện hơn để cung cấp thông tin cho các chiến lược khai thác bền vững và quản lý loài này.
Từ khóa
#Holothuria fuscogilva #di truyền học #đa dạng di truyền #quản lý bền vững #KenyaTài liệu tham khảo
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