Biology and Anatomy of the Comb Jelly Unlike fish or mammals, the spotted comb jelly lacks bones, a brain, and a centralized nervous system, relying instead on a diffuse nerve net to coordinate movement. The red to orange spots visible along the oral lobes are actually digestive glands, a visual clue to its active metabolism and predatory lifestyle.
Spotted Comb Jelly's Simple Yet Effective Nerve Net
Fertilization is external, with sperm released into the water to meet the eggs, or sometimes internal. For the average beachgoer, encountering a comb jelly is a reminder of the intricate and often invisible complexity of the ocean.
Habitat and Global Distribution Originally native to the warm coastal waters of the western Atlantic, ranging from the Gulf of Maine to the Amazon River delta, the species has successfully colonized almost every ocean basin. In the Black Sea during the 1980s, the accidental introduction of this species decimated native fish populations by consuming the plankton that juvenile fish relied upon for survival.
Spotted Comb Jelly's Simple Yet Effective Nerve Net
Using two retractable lobes, the comb jelly ensnares copepods, fish eggs, and even the larvae of its own relatives. This lack of a complex larval stage contributes to its ability to establish new populations quickly, making it a master of opportunistic reproduction.
More About Spotted comb jelly
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