Length–length and length–weight relationships for eight drum species in southeastern Louisiana |
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| Authors: | M T O'Connell A M U O'Connell |
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| Institution: | Pontchartrain Institute for Environmental Sciences, University of New Orleans, New Orleans, LA, USA |
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| Abstract: | Length–length and length–weight relationships can vary temporally and spatially, so it is imperative that accurate estimates of these relationships are available. Total length–standard length (TL‐SL) and standard length–total weight (SL–TW) relationships were calculated for eight species of drum (Sciaenidae) occurring in estuaries of southeastern Louisiana. Data were derived from monthly trawl, beach seine, and gillnet collections taken in and around Lake Pontchartrain between 2000 and 2012. Overall TL–SL relationships (ignoring the month) were found for seven species and overall SL–TW relationships were found for eight species. The strong r2 values (all > 0.950, except for one instance) indicate that these relationships are robust and will be appropriate for use by scientists managing these species. |
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