Pollution And Fishing Threats To Marbled Murrelets
257 pollution and fishing threats to marbled murrelets d.
Pollution and fishing threats to marbled murrelets. Marbled murrelets were assessed as threatened in canada by cosewic in 1990 and this status was confirmed. Carter and katherine j. Marbled murrelets nest in trees along the coast and the forage and winter off the coast of northern america. Michael fry chapter 26.
261 mortality of marbled murrelets due to oil pollution in north america harry r. Marbled murrelet is estimated to be about 357 900 birds with an estimated 99 100 birds currently in canada 28. Small schooling fish such as pacific anchovy pacific herring candlefish and pacific sand lance make up most of the diet which may include small crustaceans when fish are not abundant. Pollution and fishing threats to marbled murrelets d.
Mortality of marbled murrelets brachyramphus marmoratus due to oil pollution is one of the major threats to. Mortality of marbled murrelets due to oil pollution in north america 303k harry r. Mortality of marbled murrelets due to oil pollution in north america harry r. Michael fry chapter 26.
The principal pollutant threats to marbled murrelets are chlorinated organic effluent discharges. Carter and katherine j. In the summer the murrelets feed in bays inlets fjords and open ocean between 5 50 meters from the coast. Pollution and fishing threats to marbled murrelets 93k d.
Marbled murrelets appear to establish long term pair bonds and fidelity to nesting areas and nest trees. Marine factors that have been identified as potential threats to murrelets include overfishing pollution unattended fishing gear human population growth and associated disturbance and more recently climate change. Threats include loss of habitat predation gill net fishing operations oil spills marine pollution and disease. Usda forest service gen.