In the hydrosere the reed - swamp stage is followed by

Options

A. Marsh -meadow stage
B. Submerged free floating plant stage
C. Submerged plant, stage
D. Phytoplankton

Answer

To answer the question "In the hydrosere, the reed-swamp stage is followed by," we need to understand the concept of hydrarch succession and the specific stages involved in this process.

### Step-by-Step Solution:

1. **Understand Hydrosere**:
- Hydrosere refers to a type of ecological succession that occurs in aquatic environments. It is a sequence of communities that develop in a water body over time.

2. **Identify the Stages of Hydrosere**:
- The stages of hydrosere include:
1. **Phycoplankton Stage**: The initial stage dominated by phytoplankton.
2. **Rooted Submerged Stage**: The second stage where submerged plants begin to grow.
3. **Rooted Floating Plant Stage**: The third stage characterized by floating plants.
4. **Reed Swamp Stage**: The fourth stage where reed plants dominate the area.

3. **Determine the Stage Following Reed Swamp**:
- After the reed swamp stage, the next stage in the hydrosere is the **Marsh Meadow Stage**. This stage typically involves a transition to more terrestrial conditions with the presence of grasses and other herbaceous plants.

4. **Final Stages of Hydrosere**:
- Following the marsh meadow stage, the succession continues to:
1. **Woodland Stage**: This is the sixth stage where shrubs and trees begin to establish.
2. **Climax Community**: The final stable stage, often referred to as the climax woodland or forest, which is highly stable and can persist for a long time.

### Conclusion:
Thus, the correct answer to the question is that in the hydrosere, the reed-swamp stage is followed by the **Marsh Meadow Stage**.

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