Distribution and abundance of fishes Distribution and abundance of fishes and invertebrates in North Atlantic estuaries distributionabun1994unit Year: 1994 Distribution and Abundance of Fishes and Invertebrates in North Atlantic Estuaries Introduction Rationale This report presents information on the spatial and temporal distribution, relative abundance, and life his- tory characteristics of 58 species of fishes and inverte- brates (Table 1) in 17 estuaries in Massachusetts, New Hampshire, and Maine. Its purpose is to disseminate data developed from the National Oceanic and Atmo- spheric Adm
Distribution and abundance of fishes Distribution and abundance of fishes and invertebrates in North Atlantic estuaries distributionabun1994unit Year: 1994 Distribution and Abundance of Fishes and Invertebrates in North Atlantic Estuaries Introduction Rationale This report presents information on the spatial and temporal distribution, relative abundance, and life his- tory characteristics of 58 species of fishes and inverte- brates (Table 1) in 17 estuaries in Massachusetts, New Hampshire, and Maine. Its purpose is to disseminate data developed from the National Oceanic and Atmo- spheric Administration's (NOAA) Estuarine Living Ma- rine Resources (ELMR) program (see inside front cover). The ELMR program is conducted by the Bio- geographic Characterization Branch of the Strategic Environmental Assessments (SEA) Division. The pri- mary data compiled include the presence, distribution, and relative abundance of each species and the time period it utilizes each estuary. The data and framework presented are illustrative of the nationwide ELMR program (Monaco et al. 1990, Nelson et al. 1991, Nelson 1992, Stone et al. 1994). The objective of the ELMR program is to develop a consistent data base on the presence, distribution, relative abundance, and life history characteristics of ecologically and economically important fishes and invertebrates in the nation's estuaries. The data base is divided into five study regions (Figure 1) and con- tains the monthly relative abundance of each species' life stage by estuary for three salinity zones (seawater, mixing, and tidal fresh) identified in NOAA's National Estuarine Inventory (NEI) Data Atlas-Volume I and supplement (NOAA 1985). The nationwide data base contains information for 135 fish and invertebrate spe- cies found in 122 estuaries. Estuaries are among the most productive natural sys- tems and have been shown to be important nursery areas that provide food, refuge from predation, and valuable habitat for many species (Tyl
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