prickleback

A noun referring to small, spiny-backed fishes found in northern seas and fresh waters, known for their elongated bodies and elaborate courtship behaviors.

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1. Marine fish C2 formal scientific

   A small, elongated fish found in shallow northern seas, characterized by a long dorsal fin composed entirely of spines.

   • The prickleback is commonly found in the cold waters of the North Pacific.
   • Marine biologists study the prickleback's unique fin structure.
   • Pricklebacks use their spiny dorsal fins for defense against predators.

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   المرادفات: eelblenny

2. Freshwater fish C2 formal scientific

   A small, pugnacious, mostly scaleless fish with spiny back, found in northern fresh and littoral waters, known for elaborate courtship rituals and often used in research.

   • The freshwater prickleback is a subject of much behavioral research.
   • These fish display intricate courtship dances during mating season.
   • Pricklebacks are known for their aggressive territorial behavior despite their small size.

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   المرادفات: stickleback