Freshwater Mussels of Texas report, 24Jan2020

On January 24, 2020, three people did a random shoreline freshwater mussel search along Inks Lake, one of the Highland Lakes in Burnet County, Texas. Water levels were approximately eight feet below normal due to an intentional drawdown by the Lower Colorado River Authority (LCRA) for continued dock maintenance and cleanup after historic flooding in the fall of 2018. The weather was warm and sunny.
The monitoring period was 2:00 – 3:00 PM, and we walked approximately 900 feet east of the fishing pier in the Day Use Area of Inks Lake State Park (at approximately 30.74431, -98.36480). The substrate was mostly sand. Non-native Asian Clams were observed, but no non-native Zebra Mussels were observed. Five native freshwater mussel species were observed:

  • Giant Floater – 5 shells;
  • Southern Mapleleaf – 1 shell, 2 valves;
  • Tampico Pearlymussel – 1 shell, 1 valve;
  • Paper Pondshell – 2 shells; and,
  • Threeridge – 2 shells.
    We then spent half an hour surveying a stretch of beach at the western end of the park, but no new species were observed. Survey participants were Kathy, April, and Mike. Many thanks to Marsha May for again providing remote assistance with identification (via texting photos) that afternoon.

Publicado por k_mccormack k_mccormack, 26 de enero de 2020

Observaciones

Fotos / Sonidos

Qué

Almeja Canasta Asiática (Corbicula fluminea)

Observ.

k_mccormack

Fecha

Enero 2020

Lugar

Texas, US (Google, OSM)

Descripción

too numerous to count

Fotos / Sonidos

Qué

Mejillón de Río (Pyganodon grandis)

Observ.

k_mccormack

Fecha

Enero 2020

Lugar

Texas, US (Google, OSM)

Descripción

5 shells

Fotos / Sonidos

Observ.

k_mccormack

Fecha

Enero 2020

Lugar

Texas, US (Google, OSM)

Descripción

1 shell, 2 valves

Fotos / Sonidos

Qué

Mejillón de Perlas de Tampico (Cyrtonaias tampicoensis)

Observ.

k_mccormack

Fecha

Enero 2020

Lugar

Texas, US (Google, OSM)

Descripción

1 shell, 1 valve
more robust pseudocardinal teeth than Bluefer

Fotos / Sonidos

Observ.

k_mccormack

Fecha

Enero 2020

Lugar

Texas, US (Google, OSM)

Descripción

2 shells
beak low and not above hinge line (vs. beak moderately raised above hinge line in Yellow Sandshell)
tan with green tint (vs. yellow to tan in Yellow Sandshell)

Fotos / Sonidos

Observ.

k_mccormack

Fecha

Enero 2020

Lugar

Texas, US (Google, OSM)

Descripción

2 shells

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