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Arroyo “Santa Agueda” Papantla, Veracruz, Mexico

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Mexico, Veracruz, Papantla

Stream that owes its name to the town of Santa Águeda which is located 11.1km south of the municipality of Papantla Veracruz. This small stream is the habitat of different species of aquatic plants and fish such as Herichthys tepehua.

Submitted by
Victor Manuel Chavez Morales
Approved by
Juan Miguel Artigas Azas & Jairo Arroyave
GPS
20.5361176, -97.3186951
Geographical region
Central America
Drainage Basin
Santa Agueda
River catchment
Rio Tenixtepec
Water body type
Stream
Water body name
Arroyo Santa Agueda
Water body part
Channel
Water body course
Lower course
Water body: tributary of
River
Tributary name
Rio Tenixtepc

Videos above and below water

Water Chemistry

Water information

Water type
Fresh water
Water color
Clear water
Water transparency
Medium
Concentration of sediments
Medium
Water temperature
26.5ºC °C
Water flow/curent
Slow

Chemical parameters

pH
7.5
Conductivity
600
GH
140 mg/l
KH
160 mg/l
Dissolved Oxygen
90.5 %

Substrate in nature

Sand
Grey
Pebble/Gravel
Grey
Stone
Grey
Stone form
Roundish
Silt/Mud
Leaves
Few
Driftwood
Few
Submerged terrestrial vegetation
Yes

Aquatic Biotope

Date of collecting
23.02.2020
Collecting area
River bank
Water depth
0,5m
Air temperature
29 °C
Sunlight
Partial shade

Environment

Environment
Affected by human activity
Affected by human activity
Deforestation
Deforestation
Advanced
Surrounding area

The Santa Águeda stream is a privileged body of water with a large amount of vegetation and species of fish and crustaceans, such as Herichthys tepehua, who has great coloration and behaviors worthy of keeping in an aquarium.

Underwater landscape

The aquatic vegetation is very diverse and abundant, creating favorable places for shelter, feeding and reproduction. There is little litter on mainly rocky soil and very little water flow.

The most abundant aquatic vegetation is composed of Cabomba, Higrophila and Ludwigias.

Fishes:

  • Herichthys tepehua abundant
  • Thorichthys maculipinnis few
  • Astyanax mexicanus abundant
  • Poecilia mexicana abundant
  • Xiphophorus variatus few
  • Gobiomorus dormitor abundant
  • Agonostomus monticula rare

Molluscs:

  • Pomacia flajellata abundant

Crustacean:

  • Macrobrachium acanthurus abundant
  • Atya sp. few
  • Procambarus acanthophorus rare

Aquatic plants:

  • Heteranthera sp. abundant
  • Najas guadalupensis abundant
  • Ceratophyllum demersum abundant
  • Ludwigia repens abundant
  • Egeria densa abundant
  • Higrophila polysperma abundant
  • Lemna minor few
  • Riccia fluitans few
  • Heteranthera reniformis media
  • Azolla sp. few
  • Hydrocotyle sp. few
Threats to ecology

The Santa Agueda stream located in the state of Veracruz has easy access to the inhabitants of the region where they catch some fish and crustaceans, without any restriction damaging the ecology of the place.

Riparian zone

Trees near the aquatic habitat
Many - Inga vera
Trees near the aquatic habitat
Many - Salix humboldtiana
Trees near the aquatic habitat
Many - Guazuma ulmifolia
Trees near the aquatic habitat
Many - Pontederia sagittata
Trees near the aquatic habitat
Many - Cyperus sp.
Trees near the aquatic habitat
Many - Thelypteris palustres
Trees near the aquatic habitat
Few - Microgramma nitida
Trees near the aquatic habitat
Many - Neckera pennata

Bibliography

  • Tesis. Analisis taxonomico y zoogeogrfico de los peces de la zona norte y centro del Estado de Veracruz, Mexico. 1990 by Hortecia Obregon Barbosa
  • Flora de Veracruz. 1984 by Haynes, R.R
  • Ecology of the vegetation of Veracruz. 1973 by Gomez Pompa

Comment by the expert

Juan Miguel Artigas Azas: It is a beautiful description of the habitat. My main comments are that it is not mentioned that two of the cichlid species present (Vieja fenestrata and Thorichthys maculipinnis) are in fact newly arrivals introduced by man. A wider description of the river (e.g. width, depth, structure) would have been nice. Some species which are commonly present in Rio Tenixtepec are missing from the list of fish species (e.g. Pseudoxiphophorus jonesii, Gobimorous dormitor, Awaous tasajica).

Jairo Arroyave: The participant offered a very good description of the BIN, including fair-quality photographs (or video stills?) and video of both the terrestrial habitat adjacent to the body of water and the underwater habitat. Characterization of water chemistry is thorough, as is that of fauna and flora of the biotope. The list of fishes and invertebrates seems exhaustive, as well as that of plants, both terrestrial and aquatic. Bibliography and sitography appears sufficient and adequate.