概观 发表于 2025-3-25 04:06:50
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Function and Importance of Crustaceans,eanse coastal waters. Some shrimps are used as food for farmed fish. . and . are used as bait for catching such fish as cod and eels. Ponto-Caspian species like . and . provide a food source for many species of farmed fish (Photos 11.1 and 11.2).alcoholism 发表于 2025-3-25 22:37:05
Crustaceans in the History of the Baltic Sea,ial period it went through a series of phases, in which freshwater and salt water mingled together. These changes were the reason why the present Baltic Sea ultimately became a brackish water body. As a consequence of all those transformations and processes, species of both marine and freshwater oriLoathe 发表于 2025-3-26 03:16:01
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,The Gulf of Gdańsk and Vistula Lagoon,ltic Proper is an imaginary 58 nautical mile line between Cape Rozewie (54°50′N, 18°20′E) and Cape Taran (54°58′N, 19°69′E). Puck Bay is the westernmost part of the Gulf of Gdańsk, while the Vistula Lagoon stretches to the east of it, separated from the open sea by the Vistula Spit. The Gulf of GdańScintigraphy 发表于 2025-3-26 14:44:11
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The Gulf of Finland, south coast belongs to Estonia. In the west, the boundary between the gulf and the open waters of the Baltic Sea is not clearly marked. The gulf is tubular in shape, with a length of 428 km and a width of 120 km. At the narrowest point the gulf is only 45 km wide. Because of the shallow depth and m