2007-7890 2007-7890 S2007-78902021000400020 10.46377/dilemas.v8i.2603 Ecuador Ecuador Ecuador 00 00 2021 00 00 2021 8 spe2

1. 2013 2. 2012 3. 2016 4. 2009 13 6 6 913-21 5. FAO-68 1997 68 68 6. 2019 7. 2019 15 8. 2010 55 6 6 883-98 9. 1969 10. 1959 11. 2013 12. 2006 324 1-4 1-4 10-23