Affiliation:
1. Balaton Limnological Research Institute – ELKH, Tihany, Hungary
2. Research Centre for Aquaculture and Fisheries, Institute of Aquaculture and Environmental Safety, Hungarian University of Agriculture and Life Science, Szarvas, Hungary
Abstract
ABSTRACT
Various types of ground baits are loaded to lakes by anglers, but the ecological role of these materials is often overlooked. Thus, the aims of this study were to conduct a quantitative and qualitative assessment of the baits used by anglers in the largest lake of Central-Europe (Lake Balaton, Hungary), estimate the annual nutrient balance of recreational fishing, and relate the nutrient loading from this source to the total external load. Our study demonstrated that popular angler baits varied substantially in their nutrient contents and in their molar nitrogen to phosphorus (N:P) ratios. The net nutrient balance of recreational fishing was +19.3 t total N year
−1
and +5.2 t total P year
−1
, equivalent to 0.7% and 3.2% of the estimated total annual N and P loads, respectively. The rate of nutrient loading may be doubled if the present trends continue: anglers will use 20% more bait with an even higher nutrient content and will also show higher propensity to release the fish after catching. In turn, sustainable nutrient balance of fisheries management could be achieved by limiting the anglers’ bait use to 1.5 kg day
−1
and restricting baits to those which have relatively low P (<0.3%) and N (<1.5%) contents.
Funder
National Research, Development and Innovation Office of Hungary
Eötvös Lóránd Research Network
Publisher
American Association for the Advancement of Science (AAAS)
Subject
Management, Monitoring, Policy and Law,Ecology,Ecology, Evolution, Behavior and Systematics
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献