نتایج جستجو برای: fish distribution
تعداد نتایج: 706269 فیلتر نتایج به سال:
Enteric red mouth disease (also known as Yersiniosis) is one of the most significant bacterial infections in coldwater fish farms that cause significant mortalities and economical losses in the salmonids fish farms, especially in rainbow trout (Oncorhynchus mykiss). ERM is caused by the gram negative pathogen bacteria Yersinia ruckeri that has five O-serotypes (O1, O2, O5, O6 and O7), five oute...
Coral reefs host the highest fish diversity on Earth despite covering less than 0.1% of ocean’s seafloor. At same time they are also extremely threatened. Data syntheses over decades surveys estimate total number coral reef fishes to vary from 2,400 8,000 species distributed among roughly 100 families. But this remains largely unknown. Here, we investigated how environmental DNA (eDNA) could de...
The recruitment of wood from the riparian zone to rivers and streams provides a complex habitat for aquatic organisms and can influence both aquatic biodiversity and ecosystem function. The Daly River in the wet-dry tropics of northern Australia is a highly seasonal, perennially-flowing sand-bed river where surveys of river wood aggregations at the reach scale (~2 km) in 2008 and 2009 recorded ...
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