On a days-long fishing trip with her father and his crew, a 15-year-old girl learns her mother’s secret identity from a mermaid caught in the ship’s nets. After discovering the truth, she must fight to keep her and her sisters safe.

A woman living and fishing in the mangroves of Southeast Asia finds a wounded mermaid with a face almost identical to her own. She attempts to rescue and protect the mermaid from her ex-lover, a merchant who is seeking mermaids to cut off their tails for a profit. Despite her intense attraction and total submission to the powerful merchant woman, the fisherwoman finds herself going to desperate measures to keep the mermaid from her inevitable suffering at the hands of the woman she once loved.

In a future decimated by rising tides and extreme weather, the people of Earth have been displaced from their land and look to the sea to establish new civilizations. In order to survey the ocean and explore its resources, the U.S. Navy enlists an all-female cohort of “military mermaids,” whose human limbs and organs are genetically modified into fins and gills.

In an alternate universe where mermaids are critically endangered animals, a team of marine biologists off the coast of Jeju Island embark on a decade-long journey to revive the over-hunted, largely-infertile species. The researchers' hopes are set on one dominant female, but when their tampering crosses an irreversible line, their mission— and her life— become jeopardized. In an alternate world where mermaids are real and critically endangered, a team of marine biologists near Jeju Island embark on a decade-long mission to revive the over-hunted and overwhelmingly male species. The scientists set their hopes on one dominant female and her two male companions. However, as they study their sexual lives, the team learns just how complicated an "animal" can be— and how, sometimes, conserving a species comes at the cost of some of its members.

A genetically modified mermaid works to solve the circumstances surrounding a scholar's mysterious disappearance, all the while reconciling with the meaning of death in a futuristic world where bodies can respawn in any imaginable form.

A woman must choose between her landlubber life and the path her sister and mother chose, as mermaids.

A young Caribbean merwoman decides to bring her friends to explore living on land, but the trip puts them in horrible danger. Upon returning underwater, she must face the consequences of putting her entire community at risk.

An overweight teenage girl stumbles upon a mermaid and thinks her dreams of taking mermaid lessons have come true. But when her hypercritical mother takes her mermaid tail away, the girl has to decide whether to accept her restrictive life, or try something new.

After the seas rise, food becomes scarce, prehistoric creatures return from extinction, and people evolve in horrifying ways. One girl is in love with a human man, but she worries what will come of him if they are together, secretly knowing her mutations may one day consume her and put him in danger.

In a futuristic world, some humans have to turn into marine life known as sushi to survive outer space. Sushis are the underclass of human society, and when a young human female researcher working in outer space wants to become a sushi, she faces pushback from the human government.