About Us

About
Us

About MarAlliance

MarAlliance conducts innovative tropical marine research to support effective conservation and management of large marine wildlife and critical habitats.

Our Team

Meet our diverse team—from scientists to local fishers—working together to protect marine wildlife and support coastal communities.

Board Of Directors

Meet the dedicated members providing strategic leadership and governance to support MarAlliance’s conservation initiatives and organizational growth.

Partners

MarAlliance collaborates with partners across 5+ countries to conserve marine fauna and support sustainable community development.

Supporters

Our international alliance of supporters includes private donors, companies, universities, research centers, government institutions, and foundations fueling our conservation work.

Impact in Years

Our timeline provides a comprehensive overview of our organization’s work and conservation efforts.
Our Work

Our
Work

What We Do

We explore, enable and inspire conservation action for threatened marine wildlife and their critical habitats with dependent communities.

Where We Work

MarAlliance works with local communities in 5 countries and has a strong regional focus in Central America and the Caribbean.

Tracking

Track satellite tagged marine wildlife with us. Our tracking site is helping to share the movements of animals we tag during our field work.

Adoptions

A meaningful way to support global conservation efforts while learning about these incredible animals.

Z Scholarships

MarAlliance has launched a scholarship fund to support the next generation of marine conservationists and marine resource managers

Annual Report

MarAlliance has launched a scholarship fund to support the next generation of marine conservationists and marine resource managers
News
Get Involved

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Us

Careers

Explore exciting careers in marine conservation. Join our global team to protect ocean wildlife through science, outreach, and fieldwork that makes a real impact.

Volunteer

Interested in volunteering? Learn how you can support MarAlliance’s mission to protect ocean wildlife through hands-on conservation, research, and community outreach efforts.

Support Us

Make a difference today—donate to MarAlliance and support vital marine conservation projects that protect ocean wildlife worldwide.

Other Ways to Give

Explore different ways to support MarAlliance—monthly gifts, legacy giving, and more—all fueling our global marine conservation mission.

Get in Touch

Have questions or want to get involved? Contact MarAlliance to learn how you can support marine conservation and connect with our team.

Expeditions

Join hands-on marine fieldwork: snorkeling, tagging sharks, and monitoring reefs - to support vital long-term ocean conservation efforts.
Species Guide
Resources

Resources

Research Publications

Dive into MarAlliance’s scientific discoveries and insights aimed at protecting ocean biodiversity and advancing marine conservation knowledge.

Project Briefs

Access valuable resources for marine conservation. Explore articles and tools to support ocean protection efforts.

Scientific Presentations

Explore scientific posters and presentations on marine conservation with MarAlliance. Dive into research findings and insights to protect ocean ecosystems.

Outreach Information

Access outreach and marketing materials for marine conservation with MarAlliance. Explore resources to support education and awareness efforts.

Lemon shark

About Lemon sharks

Lemon sharks can be identified by their two equally-sized, large dorsal fins. Juveniles spend most of their early years sheltered in mangrove habitats where few large sharks can swim, expanding their range as they grow. Some adult lemon sharks form loose aggregations made up of around 20 similarly sized sharks of the same sex, and tend to spend the daytime in deeper waters, coming into shallower habitats at night. Females return to shallow mangrove nurseries to give birth, and some adults make long seasonal migrations.

Photos credits: Pete Oxford & Wikimedia

Lemon shark females can mate with more than one male per mating season, and a single litter from one female can have up to five different sires. This phenomenon is known as multiple paternity and is thought to help increase the survival of the offspring, as it increases genetic diversity.

CC: Albert Kok

CC Rick Miskiv

Diet

Like many other species of sharks, the diet of lemon sharks changes as they grow. Small juveniles in mangrove nursery habitats consume mostly benthic organisms such as shrimps and crabs, then their preference shifts to mostly fishes as they get bigger and become more adept at hunting.

Distribution

The lemon shark’s distribution is relatively small, occurring in the tropical western Atlantic Ocean from the mid-US to Brazil, the northeast Atlantic Ocean from Mauritania to Angola, including Cape Verde and São Tomé and Príncipe, and in the eastern tropical Pacific from Mexico to Ecuador. They are found around coral reefs and mangrove fringes to a depth around 100 meters.