Thành phần loài và các loại nghề khai thác cá ở đầm Đông Hồ, tỉnh Kiên Giang

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Tác giả: Thị Thu Thảo Lê, Phi Uy Vũ Nguyễn

Ngôn ngữ: Vie

Ký hiệu phân loại: 333.956 *Fishes

Thông tin xuất bản: Tạp chí Khoa học - Công nghệ Thủy sản, 2020

Mô tả vật lý: 79-89

Bộ sưu tập: Metadata

ID: 411765

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Thực hiện 04 đợt khảo sát thu mẫu thành phần loài cá trong đầm Đông Hồ, Hà Tiên, tỉnh Kiên Giang trong năm 2013, 2014, 2016 và 2018. Kết quả ghi nhận 126 loài cá thuộc 88 giống, 47 họ và 20 bộ. Bộ cá Vược Perciformes với số loài phong phú nhất 13 họ (chiếm 27,7% tổng số họ), 18 giống (20,5% tổng số giống), 30 loài(23,8% tổng số loài). Các họ chiếm ưu thế về loài là họ cá Bống trắng Gobiidae 14 loài cá Chép Cyprinidae, cá Bơn lưỡi bò Cynoglossidae, cá Đối Mugilidae mỗi họ 7 loài cá Đù Sciaenidae, cá Mú Serranidae, cá Dìa Siganidae mỗi họ 5 loài cá Lăng Bagridae, cá Bống đen Eleotridae, cá Căng Terapontidae, cá Nhụ Polynemidaemỗi họ 4 loài cá Dưa Muraenesocidae, cá Trích Clupeidae, cá Móm Gerreidae, cá Hồng Lutjanidae, cá Nóc Tetraodontidae mỗi họ 3 loài. Đã ghi nhận 4 loài cá quý hiếm nằm trong sách đỏ Việt Nam là cá Cháo biển Elops saurus, cá Mòi không răng Anodontostoma chacunda, cá Trà Sóc Probarbus jullieni, cá Mang rổ Toxoteschatareus xếp hạng sẽ nguy cấp. Kết quả nghiên cứu cũng xác định 4 loại nghề khai thác cá chính trong đầm Đông Hồ là dớn, lú Thái, đóng đáy, xiệp điện và một loại nghề theo mùa vụ là nôm đặt cá ngát. Các loại nghề cho sản lượng đánh bắt cao thường tập trung vào mùa nước mặn từ tháng 1 đến tháng 8 hàng năm. Bài báo là nghiên cứu đầu tiên về cá ở đầm Đông Hồ (Hà Tiên, tỉnh Kiên Giang) với mục đích cung cấp các dữ liệu khoa học về thành phần loài và các loại nghề khai thác cá trong đầm làm cơ sở khoa học cho việc bảo tồn đa dạng sinh học, phát triển thủy sản bền vững kết hợp với bảo vệ môi trường và du lịch sinh thái chokhu vực đầy tiềm năng này. , Tóm tắt tiếng anh, Four surveys were carried out in 2013, 2014, 2016 and 2018 to determine species composition of fish in Dong Ho (Ha Tien, Kien Giang) including 126 species belonging to 88 genus, 47 families and 20 orders. Order Perciformes was the most popular with 13 families (27,7%), 18 genus (20,5%), 30 species (23,8%). The predominant families of species were Gobiidae (14 species), Cyprinidae, Cynoglossidae, Mugilidae (each with 7 species) Sciaenidae, Serranidae, Siganidae (each with 5 species) Bagridae, Eleotridae, Terapontidae, Polynemidae (each with 4 species) Muraenesocidae, Clupeidae, Gerreidae, Lutjanidae, Tetraodontidae (eachwith 3 species). Four species were endangered and are rare fishes listed Red Data Book of Vietnam: Elops saurus, Anodontostoma chacunda, Probarbus jullieni, Toxotes chatareus, all of them are at Vulnarable level. The results also showed that there were four main fishing gears included long fence trap net, simple Thai trapnet, small dai in river, electric scoop net and the seasonal gear is the plunge basket to catch eel catfishes. Fishing gear types for high cathches are usually concentrated in the saline season from January to August each year. This article would be the first study about fish species composition in Dong Ho lagoon (Ha Tien, Kien Giang) with the purpose of providing the scientific data on species composition and fi shing gears in the lagoon as a scientific basis for biodiversity conservation, sustainable fishery development combined with environmental protection and ecotourism for this area.

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