# A Geospatial Approach to Improving Fish Species Detection in Maumee Bay, Lake Erie
## 3 Results
### Species Accumulation  
Species accumulation curve analysis showed improvements in performance for 2017 electrofishing and paired fyke net sampling after including targeted sites in hot spot areas (i.e., the hybrid sampling approach) versus traditional random site locations (Figure 2). The steepness of the initial rise in the curves indicated that species were accumulated faster (i.e., more efficiently) when including targeted sampling in hot spot areas for electrofishing and paired fyke nets but not for bottom trawling (Figure 2). Estimates of asymptotic species richness for traditional random sampling in 2017 were 18.3 (95% CI: 10.8-57.7) for electrofishing, 38.8 (95% CI: 24.4-141.6) for fyke nets, and 18.9 (95% CI: 18.1-31.4) for bottom trawling. Estimates of asymptotic species richness for traditional sites combined with targeted sampling at hot spot sites were 32.0 (95% CI: 24.0-70.9) for electrofishing, 39.9 (95% CI: 27.8-104.3) for fyke \begin{table}
\begin{tabular}{c c c c c c c} \hline \hline  & & \multicolumn{2}{c}{**Electrofishing**} & \multicolumn{2}{c}{**Paired Fyke Net**} & \multicolumn{2}{c}{**Bottom Trawl**} \\ \cline{3-6}
**Fish Species** & **Scientific Name** & **Traditional** & **Hot spot** & **Traditional** & **Hot spot** & **Traditional** & **Hot spot** \\ \hline Black Crapipe * & _Pomeris nigromaculatus_ & & & X & & & \\ Bluegill & _Lzopnis macroclirus_ & & X & X & X & & \\ Blumose Mimnow & _Pimethas multis_ & & X & X & X & & \\ Bowfin ** & _Amin calva_ & & X & & & & \\ Brook Silverside & _Labicides sisculus_ & X & X & & & & \\ Brown Bullhead & _Americanus nebulus_ & & X & X & X & & \\ Channel Catfish & _Icdathus punctatus_ & & & X & X & X & \\ Common Carp * & _Cyprimus carpio carpio_ & & & X & & & \\ Common Shiner & _Ixxulis cornuts_ & & & X & & & \\ Emerald Shiner & _Notropis altevinoides_ & & X & X & X & X & \\ Freshwater Drum & _Aplontis grammtein_ & & X & X & X & X & X \\ Gizzard Shad & _Dorsosoma expeditionum_ & & X & X & X & X & X \\ Golden Shiner ** & _Notemigons cycleucas_ & & & & X & & \\ Goldfish & _Carassius auratus mutatus_ & & X & & & & \\ [PERSON] & _Ehleostoma nigrum_ & & & & X & & \\ Largemouth Bass & _Microptas simuloides_ & & X & X & X & & \\ [PERSON] & _Percia capnodes_ & & X & X & X & X & \\ [PERSON] * & _Lepisostus osseus_ & & X & & X & & \\ Mimic Shiner & _Notropis volucellus_ & & X & X & X & X & X & X \\ Northern Pike ** & _Escor lucis_ & & X & X & X & & \\ [PERSON] & _Lepins gibbussus_ & & & X & X & & \\ Rock Bass * & _Ambloptires nrequstris_ & & & X & & & \\ Round Goby & _Neogobins melanostoms_ & & & X & X & & X \\ Sand Shiner & _Notoris strumicus_ & & X & X & X & & \\ Shorthhead Redhorse ** & _Moxostoma macrolipidatum_ & & & & & & X \\ Silver Chub ** & _Macrophysis storeriana_ & & & & & & X \\ Smallmouth Bass * & _Microptas dolemieu_ & & X & & & & \\ Spottail Shiner & _Notropis halounis_ & & & & & & \\ Tadpole Madtom * & _Noturnis syrings_ & & & & & & \\ Trout-Perch & _Percepis oinscommatycus_ & & & & & & \\ Walleye & _Sunder vitrates_ & X & X & & X & X & X \\ White Bass & _Morene chrysys_ & & X & X & X & X & X \\ White Perch & _Morene americua_ & & X & X & X & X & X \\ White Sucker * & _Catostomus commorsoili_ & & & & & & \\ Yellow Perch & _Perca fawscors_ & X & X & X & X & X & X \\ \hline \hline \end{tabular} * Unique species, a species collected at one location; ** Duplicate species, a species collected at two locations.  
\end{table} 
Table 2: Fish species captured (indicated by an “X”) in Maumee Bay during 2017 by gear type and site type (traditional \(n=15\), hot spot \(n=5\)). nets, and 19.4 (95% CI: 18.1-30.2) for bottom trawling. Overall, asymptotic species richness increased with the addition of hot spot sites, although the large 95% confidence intervals did overlap (not surprising due to high variability in catch among sites). Sampling efficiency based on observed versus asymptotic species richness of traditional random sampling in 2017 was 49% for electrofishing, and 56% for paired fyke nets, and 95% for bottom trawling.