A Preliminary Assessment of the Spawning Potential Ratio of Five Target Species of the Coastal Gillnet Fishery in Guyana and Suriname

Data—limited stock assessment methods have the potential to positively impact livelihoods of fishermen around world by providing management recommendations that aim optimize sustainable yields from fisheries. Some years ago, a novel length— based (LB) method was developed for spawning ratio (SPR), measure reproductive capacity fish stocks. We applied LB—SPR 5 important target species coastal gillnet fishery in Guyana and Suriname. Nebris microps (Smalleye Croaker; 32% SPR) Macrodon ancylodon (King Weakfish; 34% had highest potential, but remained below 40% level needed ensure exploitation. Cynoscion acoupa (Acoupa 13% SPR), C. virescens (Green 11% Hexanematichthys proops (Crucifix Sea Catfish; 14% SPR values 20% limit reference point, indicating severe potentially long—term population depletion. There are several sources bias our estimates, including concerns over length frequency dataset, violation model assumptions poor estimation certain life—history parameters. Based on experiences, various formulated be considered future efforts region. While results preliminary need careful interpretation, they line with anecdotal evidence demersal Suriname is overexploiting resources it depends upon. recommend implement precautionary fisheries measures rebuild stocks improve their potential.