. The ecology of delta marshes of coastal Louisiana : a community profile . V II III IV I VI NET PRIMARY PRODUCTION V HillIV I VI NET PRIMARY PRODUCTION/m' II iiirv I VI INSHORE SHRIMP CATCH 1955-74 Figure 29. Net primary production and fishery yield of Mississippi River Deltaic Plain hydrologic units. Production calculated fran average production of each habitat type and its area in the hydro- logic unit. Shrimp data from Barrett and Gillespie (1975). Basins are, in order of increasing age: I - Pontchartrain-Lake Borgne, II - Balize, III - Barataria, IV - Terrebonne, V - Atchafalaya, VI - Ver
. The ecology of delta marshes of coastal Louisiana : a community profile . V II III IV I VI NET PRIMARY PRODUCTION V HillIV I VI NET PRIMARY PRODUCTION/m' II iiirv I VI INSHORE SHRIMP CATCH 1955-74 Figure 29. Net primary production and fishery yield of Mississippi River Deltaic Plain hydrologic units. Production calculated fran average production of each habitat type and its area in the hydro- logic unit. Shrimp data from Barrett and Gillespie (1975). Basins are, in order of increasing age: I - Pontchartrain-Lake Borgne, II - Balize, III - Barataria, IV - Terrebonne, V - Atchafalaya, VI - Verm ilion. 31
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