Helium-neon laser radiation effect on fish embryos and larvae

Anatoly B. Uzdensky

doi:10.1117/12.184953

7 September 1994 Helium-neon laser radiation effect on fish embryos and larvae

Anatoly B. Uzdensky

Proceedings Volume 2128, Laser Surgery: Advanced Characterization, Therapeutics, and Systems IV; (1994) https://doi.org/10.1117/12.184953
Event: OE/LASE '94, 1994, Los Angeles, CA, United States

Abstract

Helium-neon laser irradiation (HNLI) is an effective biostimulating agent but its influence on embryonal processes is almost unknown. We have studied fish embryos and larvae development, viability, and growth after HNLI of fish eggs at different stages. With this aim carp, grass carp, sturgeon, and stellared sturgeon eggs were incubated in Petri plates or in fish-breeding apparatuses and were irradiated in situ with different exposures. Then we studied hutchling percentage, larvae survival and growth dynamics, and morphological anomalies percentage. HNLI effect depended on irradiation exposures and intensity, embryonal stages, and fish species. Laser eggs irradiation essentially affected larvae viability and growth in the postembryonal phase. For example, HNLI of sturgeon spawn at cleavage stage or grass carp at organogenesis decreased larvae survival rate. On the contrary HNLI at gastrulation or embryonal motorics stages markedly increased larvae survival rate and decreased the morphological anomalies percentage. We determined most effective irradiation regimes depending of fish species which may be used in practical fish-breeding.

Citation Download Citation

Anatoly B. Uzdensky "Helium-neon laser radiation effect on fish embryos and larvae", Proc. SPIE 2128, Laser Surgery: Advanced Characterization, Therapeutics, and Systems IV, (7 September 1994); https://doi.org/10.1117/12.184953

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