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Knowledge and detailed mapping of benthic habitats is a key tool for the development of strategies for coastal ecosystem management. However, existing methods are used as a “black box” where the user cannot know the equations and criteria used in the acoustic corrections, nor inspect and modify the statistical and computational protocols used too. The RMyP is developing an open protocol for marine habitat classification, from the field techniques and sampling details to large data manipulation techniques and statistical data analyses. Several echosounders will be operated from small boats, with a resulting low cost. Computing and statistical methods will be made open and free to allow for their posterior use, modification and improvement by other researchers. A fundamental point in the design of an open protocol is the independence from commercial software. Thus, a software is being built which uses the raw data from the echosounder as an input, generating energy matrixes with the corrected values (transmission loss and depth adjustment) as an output, for their further statistical analysis.
Słowa kluczowe
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Rocznik
Tom
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169--174
Opis fizyczny
Bibliogr. 10 poz.
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autor
autor
autor
autor
- 1Grupo de Recursos Marinos y Pesquerías Universidade da Coruńa Campus da Zapateira s/n, E-15071 A Coruńa, noesanchez@udc.es
Bibliografia
- [1] L.W. Botsford, J.C. Castilla, CH. Peterson, The management of fisheries and marine ecosystems, Science 277:509-515, 1997.
- [2] A. Vallega, Fundamentals of integrated coastal management, Dordrecht: Kluwer Academic Publishers,1999.
- [3] C.J. Brown, K.M. Cooper, W.J. Meadows, D.S. Limpenny, H.L. Rees, Small-scale mapping of sea-bed assemblages in the eastern English Channel using sidescan sonar and remote sampling techniques, Estuar. Coast. Shef Sci. 54:263-278, 2002.
- [4] S.E. Caddell, Application of an acoustic sea floor classification system for benthic habitat assessment, J. Shell. Res. 17:1459-1461, 1998.
- [5] S. Greenstreet, I. Tuck, G. Grewar, E. Armstrong, D.G. Reid, P.J. Wright, An assessment of the acoustic survey technique, RoxAnn, as a means of mapping seabed habitat. ICES J Mar Sci 54:939-959, 1997.
- [6] P. Legendre, K.E. Ellingsen, E. Bjørnbom, P. Casgrain, Acoustic seabed classification: improved statistical method, Can. J. Fish. Aquat. Sci. 59: 1085–1089, 2002.
- [7] I. Tuck, S.J. Hall, M.R. Robertson, E. Armstrong, D.J. Basford, Effects of physical trawling distubance in a previously unfished sheltered Scottish sea loch, Mar Ecol Prog Ser 162:227-242, 1998.
- [8] L.J. Hamilton, Acoustic Seabed Classification Systems, DSTO Aeronautical and Maritime Research Laboratory, 2001.
- [9] P.A Clarke, L.J. Hamilton, The ABCS Program for the Analysis of Echo Sounder Returns for Acoustic Bottom Classification, DSTO Aeronautical and Maritime Research Laboratory, 1999.
- [10] M.A. Ainslie, J. G. McColm, A simplified formula for viscous and chemical absorption in sea water, Journal of the Acoustic Society of America, 103 (3): 1971-1672, 1998.
Typ dokumentu
Bibliografia
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bwmeta1.element.baztech-article-BWM8-0037-0021