Helmintų Bothriocephalus scorpii (Müller, 1776) kiekio otuose (Psetta maxima (L) tyrimai
This study investigated the helminth Bothriocephalus scorpii (Muller, 1776) infection of turbot (Psetta maxima (L) caught in the Baltic Sea (Lithuanian economic zone). A total of 635 turbot specimens of varying ages were examined for infection with the tapeworm B. scorpii. Turbot age ranged from 0+...
| Main Authors: | , , |
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| Format: | Article in Journal/Newspaper |
| Language: | Lithuanian English |
| Published: |
2011
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| Subjects: | |
| Online Access: | http://lmavb.lvb.lt/LMAVB:ELABAPDB5924116&prefLang=en_US |
| Summary: | This study investigated the helminth Bothriocephalus scorpii (Muller, 1776) infection of turbot (Psetta maxima (L) caught in the Baltic Sea (Lithuanian economic zone). A total of 635 turbot specimens of varying ages were examined for infection with the tapeworm B. scorpii. Turbot age ranged from 0+ to 10 years, fish length from 5.3 to 44.6 cm, and weight from 2 to 1960 g. This survey showed that turbot acquired infections of B. scorpii before they were 1 year old. All the adult turbot were infected with B. scorpii, often heavily (n=100-178 individuals). Overall 97.5 % of turbot were infected with B. scorpii. Intensity of helmints infection ranged from 2 to 178 individuals (mean 25 individuals). The results obtained demonstrate differences in the lipid and protein content of heavily and lightly infected fishes (p<0.001). The condition factor (p<0.01) and growth (p<0.001) of 1 year old turbot decrease in heavily infected fish too. |
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