Commercially important speices of fishes are being endangered due to

Options

A. Invasion of alien species
B. Co-extinction
C. Habital loss
D. Over exploitation

Answer

**Step-by-Step Solution:**

1. **Understanding the Question:**
- The question asks why commercially important species of fish are becoming endangered. Commercially important species refer to fish that are harvested for human use, such as for food, oil, or other products.

2. **Identifying the Options:**
- The options provided are:
1. Invasion of alien species
2. Co-extinction
3. Habitat loss
4. Overexploitation

3. **Analyzing Each Option:**
- **Option 1: Invasion of Alien Species**
- Alien species are non-native organisms that can disrupt local ecosystems. However, this is not the primary reason for the endangerment of commercially important fish species.

- **Option 2: Co-extinction**
- Co-extinction refers to the extinction of one species due to the extinction of another species it depends on. While this can affect fish populations, it is not the main cause of endangerment for commercially important fish.

- **Option 3: Habitat Loss**
- Habitat loss occurs when the natural environment of a species is destroyed. While this is a significant issue for many species, there are still sufficient water bodies for commercially important fish, making this option less relevant.

- **Option 4: Overexploitation**
- Overexploitation refers to the excessive harvesting of fish species beyond sustainable levels. This includes practices like overfishing for meat and oil, which directly threatens the populations of commercially important fish such as bluefin tuna and monkfish.

4. **Conclusion:**
- After analyzing all options, the most accurate reason for the endangerment of commercially important fish species is **overexploitation**. This involves the unsustainable harvesting of these fish for commercial purposes, leading to a decline in their populations.

**Final Answer:**
Commercially important species of fishes are being endangered due to **overexploitation**.

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