Otų (Psetta maxima (L.)) ir upinių plekšnių (Platicthys flesus trachurus Duncker, 1892) jauniklių gausumo Lietuvos priekrantėje kaita per parą
The studies were carried out in August 2007 and 2008. Abundance of turbot and flounder juveniles has been investigated in natural light/dark conditions. The investigation was carried out within 24 hours with 4-hour intervals at 9 h, 13 h, 17 h, 21 h, 1 h at night and 5 h in the morning. The ratio of...
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| Format: | Article in Journal/Newspaper |
| Language: | Lithuanian English |
| Published: |
2009
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| Online Access: | http://lmavb.lvb.lt/LMAVB:ELABAPDB5891604&prefLang=en_US |
| Summary: | The studies were carried out in August 2007 and 2008. Abundance of turbot and flounder juveniles has been investigated in natural light/dark conditions. The investigation was carried out within 24 hours with 4-hour intervals at 9 h, 13 h, 17 h, 21 h, 1 h at night and 5 h in the morning. The ratio of abundance of juveniles of these species has been found to change within 24 hours. The greatest abundance of turbot and flounder 0+age class was noted during the dark period. In different years the catches of flounder 0+age class were 2,4-3,0 times greater compared with those of turbot. However, at 1 h at night this difference increases up to 6,4-9,2 times. |
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