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1

Mortality of aquatic birds in the Gulf of Gdansk as a result of oil pollution

100%

Meissner W.

Oceanological Studies

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1996

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vol. 25

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issue 1-2

151-157

EN

Poland is one of the few countries around the Baltic Sea where the mortality of aquatic birds due to oil pollution has been monitored since the 1960s.The most comprehensive data has been gathered in the Gulf of Gdansk region.During the sixties and seventies Polish coastal waters were permanently comtaminated by numerous though relatively small leaks from port installations, ships and fishing cutters.The density of dead, oiled birds was then high and ranged from 3-5 individuals per km.The 1980s witnessed a rapid decline in the number of oiled birds, owing probably to the tightening of puntative measures against the perpetrators of marine pollution, and to the recession, which also affected the maritime economy.Furthermore, the source of contamination had moved, a fact endorsed by the species composition of the dead birds recovered.At present, far fewer patroleum-based contaminants enter to open sea; the major sources of such pollution are now to be found on the coast.

2

A morphologixal study of the testes in relation to acetylcholinesterase actvity in the brain and testis of an organophosphate pesticide ingested by a wild passerine bird (Lonchura malabarica)

88%

Maitra S., Sarkar R.

Folia Biologica

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1995

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vol. 43

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issue 3-4

143-149

EN

Oral administration of an organophosphate pesticide, phosphamidon, at sublethal doses caused a decrease in both and testicular acetylcholinesterase (AChE), paired testicular weight, seminiferous tubular diameter, and the number of tubules containing healthy germ cells in the testes of adult whitetroated munias in a dose and duration depended manner.While no significant changes in the cytomorphology and nuclear diameter of Leyding cells were noted in the testes of the experimental birds, a significant negative correlation was observed between the number of semiferous tubules containing degenerated germ cells and the rate of AChE activity in both the testes and in the brain of respective bird groups.These findings demonstrate for the first time that the antigametogenic effects of an OP pesticide on avian tests may be due to impaired cholinergic functions in the brain and/or the testes in the birds concerned.

3

Barrier Detectors Versus Homojunction Photodiode

75%

Martyniuk P., Gawron W.

Metrology and Measurement Systems

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2014

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issue 4

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Mortality of aquatic birds in the Gulf of Gdansk as a result of oil pollution

A morphologixal study of the testes in relation to acetylcholinesterase actvity in the brain and testis of an organophosphate pesticide ingested by a wild passerine bird (Lonchura malabarica)

Barrier Detectors Versus Homojunction Photodiode