Fish Aggregating Devices (FADs), their characteristics, spatial and temporal distribution and tons of catches in the Tropical Eastern Pacific will be the central topic of the talk given by the doctoral candidate Estefania Isaza Toro (Universidad del Valle) during the XV Colombian Ichthyology Congress and VI Meeting of South American Ichthyologists, which will take place from 17−19 July 2019 in Medellin, Colombia.
The results to be presented are derived from the doctoral thesis ‘Prediction and seasonality of potential habitats of dolphinfish (Coryphaena hippurus) and tuna (Scombridae) and their relationship with environmental changes in the Tropical Eastern Pacific’. Since 2016, Estefania Isaza is studying this topic in detail based on information from the Colombian On-board Fishing Observers Program of the National Aquaculture and Fisheries Authority.
Her talk entitled ‘Fish Aggregating Devices in the Tropical Eastern Pacific: What’s the Situation in Colombia?’ highlights the relevance of fisheries observer programs to generate reliable information to strengthen management plans and inter-institutional strategies against the use of complementary fishing elements such as FADs in Colombia. While the use of these devices is justified with the decrease in fishing effort and increase in catch of species of commercial interest such as tuna, negative consequences have also been reported, e.g. the discarding of juveniles for non-compliance with the size and weight ratios required for marketing.
More information on the talk of Estefania Isaza in the XV Colombian Ichthyology Congress can be found at https://www.linkedin.com/in/estefaniaisazatoro.
Estefania Isaza Toro