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,
Herring as food peppercorn, bay leaves and raw onions are added. Other flavors can be added, such as sherry, mustard and dill. The tradition is strong in Scandinavia, The Netherlands, Iceland and Germany. In the Philippines, dried herring is popularly eaten during breakfast, along with garlic rice and eggs. A kipper is a split, gutted and cold smoked herring, a bloater is a whole gutted and cold smoked herring and a buckling is a whole herring, gutted apart from roe or milt and then hot smoked. All are staples of British cuisine. According to George Orwell in "The Road to Wigan Pier", the