Nghiên cứu này nhằm bổ sung thông tin về hai chỉ số RGL và GI của loài Glossogobius aureus theo giới tính, kích cỡ, mùa và địa điểm thu mẫu. Mẫu cá được thu bằng lưới đáy một lần/tháng tại Cái Răng, Long Phú, Hoà Bình và Đầm Dơi từ 01/2020 đến 12/2020. | TNU Journal of Science and Technology 226 05 44 - 50 THE RELATIVE GUT LENGTH AND GASTRO-SOMATIC INDEX OF Glossogobius aureus FROM SOME PROVINCES IN THE MEKONG DELTA Phan Hoang Gieo1 2 Dinh Minh Quang1 Truong Trong Ngon1 Nguyen Huu Duc Ton1 1Can Tho University 2Kien Giang University ARTICLE INFO ABSTRACT Received 19 02 2021 Glossogobius aureus is one of the economy fish species belonging to the family Gobiidae. Little is known about the fish relative gut length Revised 04 3 2021 RGL and Gastro-somatic index GI which are used to determine Published 15 3 2021 the feeding habit and intensity of fish. Therefore this research aims to provide additional data about RGL and GI of Glossogobius aureus by KEYWORDS sex body size season and sampling location in Me Kong Delta. Fish samples were collected monthly using gill nets in Cai Rang Long Carnvore Phu Hoa Binh and Dam Doi from January to December 2020. Glossogobius aureus Intestinal analysis of 742 fish samples showed that Glossogobius Gastro-somatic index aureus was a canivore species with RGL lt 1. In addition the variation of the RGL of this species depended on size sampling site Mekong Delta and the interaction of both size and season with locations. Meanwhile Relative gut length season interaction between sex with season size with season and sex with location did not affect RGL. The intensity of the female was similar to that of the male the intensity of the immature was similar to that of the mature. Catching intensity was influenced by size and interaction between season and location however it was not influenced by the interaction between sex and location size with location and size with season. The findings can be served for future culturing study on fish species. TẬP TÍNH ĂN VÀ CƯỜNG ĐỘ BẮT MỒI CỦA CÁ BỐNG CÁT TỐI Glossogobius aureus PHÂN BỐ Ở MỘT SỐ TỈNH ĐỒNG BẰNG SÔNG CỬU LONG Phan Hoàng Giẻo1 2 Đinh Minh Quang1 Trương Trọng Ngôn1 Nguyễn Hữu Đức Tôn1 1Trường Đại học Cần Thơ 2Trường Đại học Kiên Giang .
