The role of inland fisheries in the biodiversity of the Hungarian aquatic ecosystems
Abstract
To understand the relationship between inland commercial as well as recreational fisheries and aquatic ecosystems became more and more urgent that explained by the conservational and socio-economic demands on the one hand and the sustainability insurant regulation requirements on the other hand. To achieve this goal, the discipline of ecology can give appropriate scientific basis. On this base we made a proposal for clarifying the definitions of the inland commercial and recreational fisheries and harmonizing the Hungarian and international terms. The first step of developing a new, ecological approach in inland fisheries research we analyzed the Hungarian fisheries statistical data of the last 15 years. The relevant papers of this period were also collected and evaluated. The results confirm that alteration of fish assemblages both in aquatic and wetland habitats haven’t stopped in the latest decade. The overexploitation of certain populations can be observed in the investigated period. The scientific papers, hence the scientific based knowledge about this object is poor. However the wide range of existing problems arise in the evaluated papers, these can provide background to determine the necessary research policy.
References
Antalfi, A. & Tölg, I. (1971): Halgazdasági ABC. – Mezőgazdasági Kiadó. Budapest. 218 pp.
Arlinghaus, R. & Cooke, S. J. (2005): Global impact of recreational fisheries. – Science 307: 1561–1562.
Armstrong, R. A. & McGehee, R. (1980): Competitive exclusion. – American Naturalist 115: 151–170.
Beard, T. D. Jr., Arlinghaus, R., Cooke, S. J., McIntyre, P. B., De Silva, S., Bartley, D. & Cowx, I. G. (2011): Ecosystem approach to inland fisheries: research needs and implementation strategies. – Biology Letters 7: 481–483.
Chapman, R. N. (1931): Animal ecology. – McGraw-Hill, New York, 464 pp.
Chesson, P. L. & Case, T. J. (1986): Overwiev: Nonequilibrium community theories: chance, variability, history and coexistence. – In: Diamond, J. & Case, T. J. (eds.): Community ecology. Harper and Row, New York, pp. 229–239.
Chorus, I. & Schlag, G. (1993): Importance of intermediate disturbances for the species composition and diversity of phytoplankton in two very different Berlin lakes. – Hydrobiologia 249: 67–92.
Conell, J. (1978): Diversity in tropical rain forests and coral reefs. – Science 199: 1304–1310.
Cowx, I. G. & Gerdeaux, D. (2004): The effects of fisheries management practises on freshwater ecosystems. – Fisheries Management and Ecology 11: 145–151.
Cooke, J. S. & Cowx, I. G. (2006): Contrasting recreational and commercial fishing: searching for common issues to promote unified conservation of fisheries resources and aquatic environments. – Biological Conservation 128: 93–108.
Dévai, Gy., Juhász-Nagy, P. & Dévai, I. (1992): A vízminőség fogalomrendszerének egy átfogó koncepciója. 2. rész: a hidrobiológia és a biológiai vízminőség fogalomkörének értelmezése. – Acta biologica debrecina, Supplementum oecologica hungarica 4: 29–47.
Dynesius, M. & Nilsson, C. (1994): Fragmentation and flow regulation of river systems in the northern third of the world. – Science 266: 753–762.
FAO (1997a): Aquaculture development. FAO Technicalguidelines for responsible fisheries. 5.
FAO (1997b): Inland fisheries. FAO Technical guidelines for responsible fisheries. 6.
Gallé, L. (1998): Ekvilibrium és nem-ekvilibrium koegzisztencia életközösségekben. – In: Fekete, G. (szerk.): A közösségi ökológia frontvonalai. pp. 11–33.
Halasi-Kovács, B. & Tóthmérész, B. (2011): A hazai vízfolyások Víz Keretirányelv előírásainak megfelelő halegyüttes alapú ökológiai minősítési rendszere. – Acta biologica debrecina, Supplementum oecologica hungarica 25: in print.
Halasi-Kovács B., Erős, T., Harka, Á., Nagy, S. A., Sallai, Z. & Tóthmérész, B. (2008): A hazai víztestek halközösség alapú minősítése. – Pisces Hungarici 3: 47–58.
Halászati adattár 1996-2010 v. 2011?. Szarvas.
Hammer, Ř., Harper, D.A.T., & Ryan, P. D. (2001): PAST: Paleontological Statistics Software Package for Education and Data Analysis. – Palaeontologia electronica 4. http://palaeo-electronica.org/2001_1/past/issue1_01.htm
Hardin, G. (1960): The competitive exclusion principle. – Science 131: 1291–1297.
Hugueny, B., Oberdorff, T. & Tedescco, P. A. (2010): Community Ecology of River Fishes: A Large-Scale Perspective. – American Fisheries Society Symposium 73: 1–34.
Hutchinson, G. E. (1961): The paradox of the plankton. – American Naturalist 113: 81–101.
Jakucs, P., Dévai, Gy. & Précsényi, I. (1984): Az ökológiáról ökológus szemmel. – Magyar Tudomány 29: 348–359.
Lawton, J.H. (1999): Are there general laws in ecology? – Oikos 84: 177–192.
Oberdorff, T., Guégan, J. F. & Hugueny, B. (1995): Global scale patterns of fish species richness in rivers. – Ecography 18: 345–352.
Poff, N. L. & Allan, J. D. (1995): Functional organization of stream fish assemblages in relation to hydrological variability. – Ecology 76: 606–627.
Simberloff, D. & Von Holle, B. (1999): Positive interactions of nonindigenous species: invasional meltdown? – Biological Invasions, 1: 21–32.
