Collect valuable data on manta rays, which have rarely been studied, and cooperate in building a foundation for long-term monitoring of their habitat.
Looking to the future, manta rays could become an excellent indicator species for monitoring environmental changes in the world's oceans and coral reefs due to their widespread distribution and easily recognizable appearance. Global warming has caused significant changes in the state of the Earth's oceans. All changes, such as variations in sea temperature, ocean current patterns, and ocean acidification, could have dramatic consequences for manta ray distribution, migration, and behavior, as well as for the coral reefs that support their lives. Investigating the relationship between manta ray distribution and migration and large-scale ocean changes will help researchers monitor and assess the health of the oceans on Earth.
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**Volunteer Roles** - Take photographs for individual identification of manta rays, process the images for the database, and compare them with existing photos for identification. - Set up underwater receiving stations to record the movements of manta rays with acoustic tags, and use underwater microphones to investigate the presence or absence of manta "vocalizations." - Study the feeding habits of manta rays by collecting plankton samples and analyzing them by towing plankton nets from a boat at various diving locations and offshore. - As part of behavioral research, create a catalog of manta ray behaviors (ethogram: extracting specific behavioral patterns unique to that species). Volunteers will film manta ray behaviors to add to the catalog. - In behavioral observations of manta rays, record their interactions with different species of cleaning fish (such as cleaner wrasse that eat parasites from the skin of larger fish) and map the locations around coral reefs where cleaning occurs. For more details, please contact us or refer to the catalog.
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Since its inception, enthusiastic Earthwatch fans have emerged around the world. The main reason for this is that ordinary citizens without special skills voluntarily participate in field research, working under the guidance of world-class scientists, and can experience "the current state of the Earth." In other words, it is the largest organization in the world that connects cutting-edge science (field research) with the general public. The primary goal of Earthwatch is to investigate and document changes on Earth through the "eyes of science" and to create the necessary "knowledge base" for a sustainable future. It does not impose or enforce any ideologies, principles, or claims. Based on scientific data, it communicates and proposes solutions to humanity's challenges from a fair standpoint. Earthwatch Japan supports field research by Japanese scientists in the most effective way, aligned with Japan's needs and current situation, to address common human problems. It mobilizes volunteers for these research projects and also sends volunteers to overseas projects as part of international cooperation activities.