Isostichopus badionotus
A large Atlantic sea cucumber with dark dorsal warts.
The chocolate chip cucumber, also known as the cookie dough sea cucumber, is a species from the Stichopodidae family. It is a common inhabitant of the warm Atlantic Ocean. This large sea cucumber can reach 45 cm (1 ft 6 in) in length, though adults average around 21 cm (8 in). Its back features three rough rows of distinctive dark warts, while the rest of the body ranges from white to shades of orange or brown, sometimes with large brownish stains. The mouth is on the underside and is surrounded by roughly 20 large tentacles.
This species is widespread across the warm Atlantic, from North Carolina (USA) through the Caribbean to northern Brazil, and also at Ascension Island and in the Gulf of Guinea. It lives in shallow waters at depths from 0 to 55 m (0–180 ft), on various seafloor types including sand, mud, rock, and among seaweeds.
Like other tropical sea cucumbers, it is dioecious. Males and females release their gametes into the water, where external fertilization occurs. A study in the Caribbean noted that reproductive activity increases with rising temperatures.
As bottom feeders, these animals are threatened by contaminated substrates, particularly from metals left by boats. They are also popular in Asian cuisine, which puts them at risk from illegal fishing and trafficking.
Quick Facts
- Genus
- Isostichopus
- Species
- badionotus
Facts from the source article.
Lore & Background
Isostichopus badionotus is a large species that can grow to a length of 45 cm, though the average adult size is about 21 cm. Its dorsal surface features distinctive dark colored 'warts' arranged in three coarse rows, while the rest of the body may vary from white through shades of orange to brown, sometimes with large brownish stains. The mouth is located ventrally and surrounded by about 20 large tentacles.
This species is widespread in the warm Atlantic, found from North Carolina (USA) through the Caribbean to north Brazil, at Ascension Island, and in the Gulf of Guinea. It inhabits shallow waters at depths between 0 and 55 m, on a wide variety of bottoms including sand, mud, rock, and seaweeds. Like other tropical Holothuroidea, it is dioecious, with males and females releasing gametes into the water for external fertilization. A study in the Caribbean Sea observed increased reproductive activity when temperatures rise.
As bottom feeders, individuals are threatened by contaminated substrates due to metals left behind by boats. They are also popular in Asian cuisine and are threatened by illegal fishing and trafficking.
Reader's Guide
Isostichopus badionotus is a common species in warm parts of the Atlantic Ocean, recognized by its chocolate chip-like dorsal warts and large size. Its significance lies in its ecological role as a bottom feeder and its vulnerability to human activities. The article notes that contaminated substrates from boat metals threaten these sea cucumbers, as they feed on the seafloor. Additionally, their popularity in Asian cuisine has led to illegal fishing and trafficking, posing further conservation challenges. The species' reproductive cycle is tied to temperature increases in the Caribbean, indicating sensitivity to environmental changes. Despite its wide range from North Carolina to Brazil and the Gulf of Guinea, these pressures highlight the need for awareness of its status. The article provides no conservation status designation but underscores the threats from pollution and overharvesting, making it a species of concern in its shallow-water habitats.
Did You Know?
- Isostichopus badionotus can grow up to 45 cm in length.
- It has about 20 large tentacles surrounding its ventrally located mouth.
- The species is found at depths between 0 and 55 m.
- Reproductive activity increases when temperatures rise in the Caribbean Sea.
More in Sea Cucumbers and Brittle Stars, Part 3 1-24
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