Identyfikatory
Warianty tytułu
Konferencja
Proceedings of the 2 nd EAA International Symposium on Hydroacoustics 24-27 May 1999, Gdańsk-Jurata POLAND
Języki publikacji
Abstrakty
In spite of a well known fact that biological objects migrate up and down in a diurnal cycle according to the variable light conditions, there exist some detailed features characteristic for the specific areas. Vertical migrations were detected in different seasons at various points of the Baltic Sea, in Lake Wdzydze (Northern Poland) and in Lake Tanganyika (Africa). Those three areas are very different in size, water content and structure, biological life and meteorological conditions. Analysis of the vertical distribution of echoes and temporal dynamics of the aggregative behaviour is presented on the base of the spatial heterogeneity of abiotic environment.
Słowa kluczowe
Czasopismo
Rocznik
Tom
Strony
39--44
Opis fizyczny
Bibliogr. 9 poz., rys., tab.
Twórcy
autor
- Institute of Oceanology, Polish Academy of Sciences ul.Powstańców Warszawy 55, 81-712 Sopot, POLAND
Bibliografia
- 1. T.Baussant, F.lbanez, S.Dallot, M.Etienne, DiurnaI mesoscale patterns of 50 kHz scattering layers across the Ligurian Sea front (NW Mediterranean Sea), Oceanologica acta 15, 1, pp. 3-12, (1992).
- 2. G.W.Coulter (ed.), Lake Tanganyika and its life, British Museum (Natural History) and Oxford University Press, 354 p., (1991).
- 3. I.Everson, Diurnal variations in mean volume backscattering strength of an Antarctic krill (Euphausia superba) patch, J.Plank.Res. 4, 1, pp. 155-162, (1982).
- 4. N.Gorska, J.Szczucka, K.Poraziński, Seattering patterns of diurnal vertical migrations of fish and zooplankton in Lake Wdzydze (Northem Poland), Proccedings of the Fourth European Conference on Underwater Acoustics, Vol.1, pp. 241-246, Rome, ltaly, (1998).
- 5. A.Orłowski, Diel variations of acoustic properties of the Baltc fish, Proceedings of the XIIIth Symposium on Hydroacoustics, Gdynia-Jurata, pp. 35-48, (1996 ).
- 6. A.J.Plueddemann, R.Pinkel, Characterization of the patterns of diel migration using a Doppler sonar, Deep Sea Res. 36,4, pp. 509-530, (1989)
- 7. D.D.Sameoto, Zooplankton and Micronekton Abundance in Acoustic Seattering Layers on the Nova Scotian Slope, Can.J.Fish.Aquat.Sci. 39, pp. 760-777, (1982).
- 8. J.Szczucka, Analysis of diurnal variability of the Baltic sound scattering layers, International Symposium on Hydroacoustics and Ultrasonics, EAA Symposium, Gdańsk-Jurata, pp. 109-114, (1997).
- 9. J.Szczucka, Z.Klusek -"Migration patterns of acoustic scatterers in the southern Baltic Sea", Oceanologia 38(1), pp. 61-79, (1996).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-ef75f5af-35b5-46f3-8f4b-66f26de76c7c