tailieunhanh - Effect of fragment size on growth and survival rate of soft coral Sarcophyton sp.

The Sarcophyton sp., are very strong and dominant in many coral reef areas. Sarcophyton species are characterized by a distinct sterile stalk, a broad, flared, smooth, mushroomshaped top, with a wide distribution and dominance in numerous coral reef areas extending from the Red Sea and eastern Africa to the western Pacific Ocean. | Vietnam Journal of Marine Science and Technology 2023 23 4 409 417 Vietnam Academy of Science and Technology Vietnam Journal of Marine Science and Technology journal homepage jmst Effect of fragment size on growth and survival rate of soft coral Sarcophyton sp. Dang Tran Tu Tram Dao Thi Hong Ngoc Nguyen Thi Nguyet Hue Ho Son Lam Dinh Truong An Doan Van Than Nguyen Truong Tan Tai Do Hai Dang Phan Kim Hoang Tran Cong Thinh Hua Thai An Hoang Xuan Ben Institute of Oceanography VAST Vietnam Received 9 August 2023 Accepted 20 September 2023 ABSTRACT The Sarcophyton sp. are very strong and dominant in many coral reef areas. Sarcophyton species are characterized by a distinct sterile stalk a broad flared smooth mushroomshaped top with a wide distribution and dominance in numerous coral reef areas extending from the Red Sea and eastern Africa to the western Pacific Ocean. They are cherished in marine aquariums for their diverse colors and adaptability but their excessive exploitation has significantly impacted resources and disrupted the balance of the soft coral biome that inhabits coral reefs. The objective of the current study was to assess the impact of fragment size and cm on survival rate growth rate and time of attachment of coral Sarcophyton sp. in a closed seawater system. Each treatment involved three replicates with 20 cuttings per replicate and the experimental period was 90 days. The experiment showed that the size of fragment did not influence the growth rate of oral disc diameter pedal disk diameter and the time attachment of Sarcophyton sp. However the size of fragment effect to survival rate growth rate of height and weight of Sarcophyton sp. colonies. These findings collectively suggest that the initial coral fragment size of cm was suitable in laboratory conditions. Keywords Sarcophyton sp. fragmentation self-attachment specific growth rate survival rate. Corresponding author at Institute of