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Quality of water in Ribeira Pontido

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Apresentação realizada pelos alunos do Agrupamento de Escolas de Póvoa de Lanhoso no âmbito do projeto Comenius / eTwinning WaterMark. Ano letivo de 2013/14.

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Quality of water in Ribeira Pontido

  1. 1. AquaProject/ProjetoAgua Water quality in Ribeira do Pontido, Póvoa de Lanhoso Using macroinvertebrates as bioindicators Involved students : 11A, 11C, 12A, 12B, P29 School year 2013 / 2014
  2. 2. AquaProject/ProjetoAgua Why is it so important a WATER study? • … without WATER there’s no life. • … FRESH WATER distribution on the planet is asymmetric. • … the humankind doesn’t always give the importance needed to this precious resource. • … to remember how essential european rules are for water preservation. –European Water Charter
  3. 3. AquaProject/ProjetoAgua Why is it so important a WATER study? • WaterMark(Comenius & eTwinning) & • AquaProject / ProjetoAgua (Ordem dos Biólogos & Ciência Viva)
  4. 4. AquaProject/ProjetoAgua The projects… • Several activities were developed: • Research papers • Videos • Interviews • Posters • Photos • Fieldwork • Lab work… • Now we are going to present you one of our works
  5. 5. AquaProject/ProjetoAgua Investigation problem… What’s the water quality in Ribeira Pontido? © Hugo Oliveira, 11ºA, 11/12/2014
  6. 6. AquaProject/ProjetoAgua Study objectives Objectives were defined related with… – Water quality assessment… • Get to know the water quality of Ribeira Pontido. • Use of macroinvertebrates as bioindicators. – Field and experimental work – Data processing – Discussion and dissemination of results
  7. 7. AquaProject/ProjetoAgua Study area characterization • Urban Park in Póvoa de Lanhoso center, crossed by the Ribeira do Pontido (hydrographic network of Rio Ave). • Vegetation: grass, bushes and small trees. • Maintenance: Town Hall. • It has equipment for sports practice.
  8. 8. AquaProject/ProjetoAgua Materials and methods… Field In YOUTUBE >>>>>>
  9. 9. AquaProject/ProjetoAgua Materials and methods… Field • 1 local sample • 2 samples (dez2013/mar2014) • Net to scrape the edges. • Contents dumped into trays. • The macroinvertebrates were placed bottles with water from the Ribeira. • Measurement of the pH and temperature with a water sensor.
  10. 10. AquaProject/ProjetoAgua Materials and methods … Lab • Observation of the macroinvertebrates with a magnifying glass. • Classification of the living beings based on a grid made by Porto University teachers. • Counting the macroinvertebrates observed and classified.
  11. 11. AquaProject/ProjetoAgua Materials and methods … Lab
  12. 12. AquaProject/ProjetoAgua Materials and methods … Lab Type 1- organisms very intolerant to pollution
  13. 13. AquaProject/ProjetoAgua Materials and methods … Lab Type 2- organisms moderately intolerant to pollution
  14. 14. AquaProject/ProjetoAgua Materials and methods … Lab Type 3 -organisms moderately tolerant to pollution Type 4-organisms very tolerant to pollution
  15. 15. AquaProject/ProjetoAgua Pictures in Lab… Fotos de: Hugo Oliveira, José Pedro Gonçalves & José Braga
  16. 16. AquaProject/ProjetoAgua Macroinvertebrates… Lab Larvas de Tricópteros Larvas de efemerópteros
  17. 17. AquaProject/ProjetoAgua Macroinvertebrates… Lab Larvas de Díptero Família Athericidae Larvas de Odonatas
  18. 18. AquaProject/ProjetoAgua Os macroinvertebrados… Lab Larvas de Dípteros Família Simuliidae Minhocas Coleóptero
  19. 19. AquaProject/ProjetoAgua Obtained data… Lab
  20. 20. AquaProject/ProjetoAgua Obtained data … Lab
  21. 21. AquaProject/ProjetoAgua Obtained data … Lab 0 20 40 60 80 100 120 140 Grupo 1 Grupo 2 Grupo 3 Grupo 4 Total Nº Macroinvertebrados Comparação entre o nº de macroinvertebrados recolhidos 11-12-2013 10-03-2014
  22. 22. AquaProject/ProjetoAgua Discussion… Lab The water quality has changed : - Excelent in December - Reasonable in March Possible reasons are: - The amount of nutrients increased due to organic matter decomposition. - Sampling errors. - Classification difficulties.
  23. 23. AquaProject/ProjetoAgua Conclusions • In most water quality studies are used physico-chemical parameters. • If there are occasional disturbances in the water quality, these will affect the results and because of that, we can’t effectively characterize the quality of water. • This study attempts to show the importance of macroinvertebrates in the determination of water quality.
  24. 24. AquaProject/ProjetoAgua Conclusions • The macroinvertebrates life cycle duration , their needs for nutrients, oxygen, ... make it possible that the biological assessment allow the detection of pollutants, increased organic matter decomposition, ... • The water quality evaluation should consider the set of physical, chemical and biological parameters.
  25. 25. AquaProject/ProjetoAgua THANK YOU FOR YOUR ATTENTION! WaterMark Project – Portuguese Team

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