Rahway River migrations. Fish ladders are inundated structures with small underwater steps that allow fish to navigate around a dam and continue their migration. Other approaches include removing obstructions that are inoperative or no longer serve their purpose, or improving water quality and reducing debris that obstructs passage. The fish targeted for upstream passage at the Rahway River Water Supply Dam are alewife (Alosa pseudoharengus), blueback herring (Alosa aestivalis), gizzard shad (Dorosoma cepedianum), white perch (Morone Americana) and the endangered American eel (Anguilla rostrate). Alewife and blueback herring are collectively referred to as river herring due to their similarity in appearance, range,
Dorab wolf-herring Dorab wolf-herring The dorab wolf-herring ("Chirocentrus dorab") is a fish species from the "Chirocentrus" genus of the Chirocentridae family. It is a coastal fish, silvery below and bright blue above. It is found in both marine and brackish or estuarine waters, feeding on smaller fish and possibly crustaceans. "Chirocentrus" is from the Greek "cheir" meaning "hand" and "kentron" meaning "sting". Dorab is from the Arabic language word "darrab" (ضرّاب) and the word is probably a corrupted form of "durubb" (دُرُبّ) the name for goldfish in Arabic. It has another Arabic name, "lisan" (لسان) which means "tongue". Indo-Pacific: probably throughout the