Related by context. Frequent words. (Click for all words.) 57 sea lice 52 toxic algae blooms 52 algal bloom 51 algal blooms 51 varroa mite 51 Broughton Archipelago 50 whirling disease 49 epidemics 49 disease 48 chytrid fungus 48 parasitic diseases 47 potato blight 47 overharvesting 47 viral hemorrhagic septicemia 47 locust plague 47 species extinctions 47 Flu pandemic 46 Nipah virus 46 E.Coli 46 avian influenza outbreak 46 harmful algal blooms 45 overhunting 45 Vibrio 45 Didymo 45 coral bleaching 45 Rift Valley Fever 45 aquaculture 45 Listeriosis 45 oxygen depletion 45 FMD outbreak 45 Rift Valley fever 45 toxic algae 45 Ebola outbreak 45 salmonids 45 E.coli outbreak 45 mountain pine beetles 44 farmed salmon 44 algae blooms 44 diseases 44 Nipah 44 varroa 44 outbreaks 44 haemorrhagic fever 44 salmonella infection 44 habitat degradation 44 Overfishing 44 eutrophication 44 parasitic infections 44 schistosomiasis 44 birdflu 44 Nile perch 43 wild salmon 43 fish 43 parasitic infection 43 H#N# avian flu 43 Severe drought 43 measles epidemic 43 nutrient runoff 43 epidemic 43 didymo 43 farmed fish 43 elephant poaching 43 freshwater fish 43 canine distemper 43 poultry flocks 43 dengue epidemic 43 overfishing pollution 43 avian influenza virus 43 basking sharks 43 seagrasses 43 Bovine TB 43 diarrheal disease 42 caribou herds 42 Bird flu 42 nutrient pollution 42 aquatic organisms 42 Leptospirosis 42 Bovine Spongiform Encephalopathy BSE 42 Salmonellosis 42 bee populations 42 Salinity 42 salmon 42 rinderpest 42 smolts 42 shellfish 42 locust swarms 42 Marburg virus 42 Meningococcal disease 42 antibiotic resistant infections 41 outbreak 41 longline fishing 41 Ocean acidification 41 invasive species 41 freshwater mussels 41 Invasive species 41 minke whale 41 Avian flu 41 forest fires 41 barramundi 41 beetle infestation 41 avian flu