. Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Month Legend: Tidal fresh zone Mixing Zone Seawater Zone for mean monthly catches by 10 minute trawls. This quantitative information supplements the relative abundance rankings of the ELM R species compiled in this report. Only a few species are used to show comparisons between estuarine systems along the Central Gulf of Mexico coast. ELMR data are comparable between estuarine systems only when state agency quantitative databases are available to enhance the ELMR data. Without consistent quantitative data, comparisons between salinity zones and
. Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Month Legend: Tidal fresh zone Mixing Zone Seawater Zone for mean monthly catches by 10 minute trawls. This quantitative information supplements the relative abundance rankings of the ELM R species compiled in this report. Only a few species are used to show comparisons between estuarine systems along the Central Gulf of Mexico coast. ELMR data are comparable between estuarine systems only when state agency quantitative databases are available to enhance the ELMR data. Without consistent quantitative data, comparisons between salinity zones and species are only feasible within an estuarine system. Brown shrimp (Penaeus aztecus) and spot (Leiostomus xanthurus) were selected to represent a portion of the data from LDWF and GCRL which were made available to ELMR. The mean monthly commercial catch of brown shrimp usually peaked from Mayto July (Figure9a). Comparison of estuarine systems shows that CSA VII (Calcasieu Lake) has tfie highest peak abundance of brown shrimp, while the other systems all peak about the same time, but at lower levels. Spot usually peaked in March (Figure 9b). The highest relative atDundance of spot was in Mississippi Sound. Figure 8. Comparison of ELMR estuaries with LDWF Coastal Study Areas (l-VII) and GCRL Mississippi Sound (MS) stations.
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Keywords: ., bookcentury1900, bookcollectionameri, bookcollectionbiodiversity
