Stock status of ark clams (Anadara spp.) based on dredge fishing of the east coast of Surabaya, Indonesia

1st International Conference on Fisheries and Marine Science

Dewi, N.N.^1 ; Pursetyo, K.T.^2 ; Darmono, O.P.^3 ; Fachri, F.R.^3 ; Puspitasari, F.S.^3 ; Damora, A.^4

Department of Fish Health Management and Aquaculture, Faculty of Fisheries and Marine, Universitas Airlangga, Surabaya, Indonesia^1

Department of Marine, Faculty of Fisheries and Marine, Universitas Airlangga, Surabaya, Indonesia^2

WWF Indonesia, Indonesia^3

Faculty of Marine and Fisheries, Syiah Kuala University, Indonesia^4

关键词: Biomass dynamics;    Coastal area;    East coast;    Fishery resources;    Indonesia;    Reference points;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/236/1/012039/pdf
DOI  :  10.1088/1755-1315/236/1/012039

来源: IOP

【 摘 要 】

Ark clams (Anadaraspp.) are one of the potential fishery resources off the East Coast of Surabaya. The purpose of this research was to determine the condition and stock status of Anadara spp. The biomass dynamic model was the method used to obtain the stock status of this species. For the estimation of biomass, starting in 1960, it continued to increase until finally it stabilized. Starting in the 2000s, the condition of the ark clam biomass began to decline. For the limit reference point (LRP), the value is expected to be about 7,215.55 tons with a catch effort (fmsy) of 334 units and with the Bmsy being 6,7121,38 ton; this includes MSY. For the condition of the stock in 2016, the catch was 1,2957 ton and the effort was 445 units. This means that the actual stock of the ark clam (Anadara spp.) off the East Coast of Surabaya exceeds the MSY, fmsy, and Bmsy. This is an indication of overfishing in the coastal area.