Targeted User Group:

1. Marine Biologists and Environmental Scientists:
   - Researchers and scientists focused on marine ecosystems and coral reef conservation.
2. Local Coastal Communities:
   - Residents and stakeholders in the Mesoamerican region who rely on coral reefs for their livelihoods and well-being.
3. Conservation Organizations and NGOs:
   - Groups dedicated to environmental conservation and restoration efforts.
4. Web3 and DeSci Enthusiasts:
   - Individuals and organizations interested in applying decentralized technologies to scientific research and environmental conservation.
5. Policy Makers and Government Agencies:
   - Entities involved in environmental policy, marine conservation, and sustainable development.
6. Financial Backers and Philanthropists:
   - Investors and donors looking to support innovative and impactful environmental projects.
7. Educators and Students:
   - Academic institutions and individuals interested in marine biology, environmental science, and emerging technologies.

Need/Problem Being Addressed:

1. Coral Reef Degradation:
   - Coral reefs in the Mesoamerican region are facing significant threats from climate change, pollution, overfishing, and habitat destruction. MesoReefDAO aims to regenerate these ecosystems and ensure their long-term health and resilience.

2. Lack of Transparency and Efficiency in Conservation Efforts:
   - Traditional conservation methods often lack transparency and efficiency. MesoReefDAO addresses this by integrating blockchain technology and smart contracts to create a transparent, efficient, and accountable system for managing conservation projects.

3. Limited Community Involvement:
   - Local communities are often not adequately involved in conservation efforts, leading to less effective outcomes. MesoReefDAO empowers local communities by involving them in the decision-making process and ensuring they benefit directly from conservation activities.

4. Insufficient Funding and Financial Inclusion:
   - Many conservation projects struggle with securing sustainable funding. MesoReefDAO leverages decentralized finance (DeFi) mechanisms to create sustainable funding models, promoting financial inclusion within local communities.

5. Fragmented Conservation Efforts:
   - Conservation initiatives are often fragmented and lack coordination. MesoReefDAO promotes collaboration and cross-pollination of ideas and resources between different projects and stakeholders, enhancing the overall impact of conservation efforts.

6. Barriers to Knowledge Sharing and Innovation:
   - There are significant barriers to sharing knowledge and fostering innovation in marine conservation. MesoReefDAO facilitates workshops, brainstorming sessions, and digital platforms to promote the exchange of knowledge and collaborative problem-solving.

7. Need for Interdisciplinary Approaches:
   - Addressing the complex challenges of coral reef conservation requires interdisciplinary approaches. MesoReefDAO connects experts from various fields, including marine biology, environmental science, technology, and socio-economics, to develop comprehensive solutions.

By targeting these user groups and addressing these critical needs, MesoReefDAO aims to create a robust and sustainable model for coral reef conservation that leverages the power of Web3 tools and decentralized science.