According to a global assessment by a coalition of environmental organizations, the population of migratory fish has plunged by 76% worldwide over the last 50 years. Europe has seen the worst decline, amounting to a steep 93% decline in the past five decades. Latin America and the Caribbean follow suit with freshwater fish declining by 84%. This comes as a major warning sign as fish migrations form an essential part of the ecosystem and a disruption in their population could have major consequences for people who depend on them for sustenance and livelihood. Habitat degradation and loss have been held as the major reasons for the decline, according to the report.