Vallisneria americana

Tapegrass

A ribbon-leaved freshwater plant growing in the lake, where it adds underwater structure, leaf surfaces, shelter, and living plant material for the food web.

Back to Species Index

Identity & Origin +

Common Name: Tapegrass
Scientific Name: Vallisneria americana
Realm: Freshwater
Biome: Freshwater Lake
Date First Introduced: June 12, 2025

Population Dynamics +

Current Estimated Population: Several plants are present in the Freshwater Lake, with the current stand still being watched.
Population Status: Uncertain
Date Last Observed: May 24, 2026

Section Notes

Tapegrass remains part of the Freshwater Lake plant structure. Recent crayfish feeding on older leaves shows that it is not only habitat, but also a food source for at least some crayfish. Its long-term density, spread, and grazing pressure are still unresolved.

Trophic Ecology +

Trophic Level: Producer
Feeding Niche / Method: Photosynthetic primary producer
Dietary Inputs: Light, water, carbon dioxide, and dissolved nutrients

Section Notes

Tapegrass is a submerged freshwater producer. It uses light and dissolved nutrients to grow, creates leaf surfaces and shelter, and can pass older plant tissue into the food web when grazers feed on it.

Environmental Tolerances +

Life Cycle & Reproduction +

System Reproduction Status: Not confirmed; no sustained reproduction or spread claim is made from the current reviewed evidence.

Ecological Role & Symbiosis +

Ecological Role: Primary production and aquatic habitat structure
Microhabitat Preference: Submerged freshwater lake areas with enough light for ribbon-like leaves to grow through the water column.

Section Notes

Tapegrass gives small animals surfaces to move across and places to shelter. Older leaves may also become food for crayfish and other grazers as the plant ages.

Freshwater

A still freshwater habitat where submerged plants, tiny grazers, shrimp, snails, and crayfish are rebuilding the lake's food web after fish pressure changed.

Tapegrass

Visual Data Unavailable

Section Notes

Section Notes

Classification Pending

Section Notes

Biomes This Species Lives In

Freshwater Lake

Ghost Shrimp Enter the Freshwater Lake Trial

Daphnia Need Shelter Before They Can Control Algae

Lake Algae Marks a Nutrient Transition

Unidentified Flies Arrive with the Tapegrass

Lake Plant Swap Reopens Nutrient Flow

Tapegrass Becomes the Target Lake Plant

Related Subjects

Tapegrass

Visual Data Unavailable

Biomes This Species Lives In

Ghost Shrimp Enter the Freshwater Lake Trial

Daphnia Need Shelter Before They Can Control Algae

Lake Algae Marks a Nutrient Transition

Unidentified Flies Arrive with the Tapegrass

Lake Plant Swap Reopens Nutrient Flow

Tapegrass Becomes the Target Lake Plant

Cookie Notice