Browsing by Author "Hastie, Lee C."
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- Fishers' perceptions about the EU discards policy and its economic impact on small-scale fisheries in Galicia (North West Spain)Publication . Villasante, Sebastian; Pierce, Graham J.; Pita, Cristina; Pazos Guimerans, César; Garcia Rodrigues, João; Antelo, Manel; Da Rocha, José Maria; Garcia Cutrini, Javier; Hastie, Lee C.; Veiga, Pedro; Sumaila, U. Rashid; Coll, MartaThis paper investigates the impact of the European Union landing obligation in the Galician (North West of Spain) multispecies small-scale gillnet fishery. By combining results from semi-structured interviews with small-scale fishers and a bioeconomic model, we found that the percentage of discards for small-scale fisheries is usually low, which is consistent with general empirical observations globally but can be high when quotas are exhausted. Our results also confirm that the landing obligation would generate negative impacts on fishers' activities by investing more time on-board to handle previously discarded fishes, and putting at risk the security of fishers at sea due to full use of allowable storage on-board coupled with often adverse sea conditions in Galician bays. The application of the landing obligation policy to small-scale fisheries would result in short-and long-term losses of fishing days and yields, with high negative impacts on sustainable fisheries such as the Galician multi species small-scale gillnet fishery. The expected number of fishing days under the landing obligation is estimated to be reduced by 50% during the five years following the implementation of the policy. The future yield (catches) under the landing obligation would be only 50% of catches expected in the absence of the landing obligation, regardless of the total volume of quotas allocated to the fleet. (C) 2016 Elsevier B.V. All rights reserved.
- Seasonal movements of veined squid Loligo forbesi in Scottish (UK) watersPublication . Viana, Mafalda; Pierce, Graham J.; Illian, Janine; MacLeod, Colin D.; Bailey, Nick; Wang, Jianjun; Hastie, Lee C.In order to protect and sustainably manage fishery resource species, it is essential to understand their movements and habitat use. To detect the hypothesised migration of maturing veined squid Loligo forbesi from the west coast of Scotland (UK) to the North Sea and identify possible inshore-offshore movements, we analysed seasonal, spatial and environmental patterns in abundance and size distribution, based on commercial fishery landings data and trawl survey data from Scottish coastal waters (International Council for the Exploration of the Sea, ICES areas IVa, IVb and VIa). A geographic information system (GIS) was used to build monthly contour maps of abundance. Generalised additive mixed models (GAMM) were used to quantify patterns in size distribution and abundance. In most years, there was no evidence of movement from the West to the East coast of Scotland. Evidence of inshore-offshore movements during the life-cycle of the cohort that recruits in autumn (winter breeders) was found instead. The winter breeding cohort appears to spawn in inshore waters and some evidence suggests that the spawning grounds of the summer breeders are also inshore. Across seasons, higher abundance of L. forbesi can generally be found in the north of Scotland at intermediate water depths and in warmer waters.