Establishing precise estimates of abundance in patchy habitats of the marine nearshore

Baring, Ryan J., Lester, Rebecca E. and Fairweather, Peter G. 2016, Establishing precise estimates of abundance in patchy habitats of the marine nearshore, Marine environmental research, vol. 120, pp. 68-77, doi: 10.1016/j.marenvres.2016.07.003.

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Title Establishing precise estimates of abundance in patchy habitats of the marine nearshore
Author(s) Baring, Ryan J.
Lester, Rebecca E.ORCID iD for Lester, Rebecca E. orcid.org/0000-0003-2682-6495
Fairweather, Peter G.
Journal name Marine environmental research
Volume number 120
Start page 68
End page 77
Total pages 10
Publisher Elsevier
Place of publication London, Eng.
Publication date 2016-09
ISSN 0141-1136
1879-0291
Keyword(s) beaches
coastal zone
data processing
fish
macrophytes
marine ecology
Summary Exploratory investigations of optimal sampling designs are a critical component of the decision-making process in ecology where inherent natural variation can lead to erroneous conclusions if left unexamined. Pilot studies and exploratory analyses that investigate the precision of sampling regimes may reduce the chances of erroneous results and can be used to optimise processing time in larger ecological research programs. In our study, we calculated optimal precision estimates for sampling macroinvertebrates and ichthyofauna in surf-zone wrack accumulations by investigating the precision of the mean for sub-samples of seine nets and also for the number of replicate seine nets to guide future sampling regimes. We discovered that the processing time for individual seine net samples could be reduced by 50% using sub-sampling and that time to process replicate seine net samples could be reduced by 25% while maintaining acceptable precision. In future, we suggest that the use of pilot studies with similar exploratory approaches should be less of an exception and more a critical component of ecological investigations, particularly in under-studied or newly-developing areas of research. Further, these types of exploratory approaches are crucially important in a variety of extremely patchy environments where variability is likely to be high.
Language eng
DOI 10.1016/j.marenvres.2016.07.003
Field of Research 060205 Marine and Estuarine Ecology (incl Marine Ichthyology)
Socio Economic Objective 970105 Expanding Knowledge in the Environmental Sciences
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2016, Elsevier
Persistent URL http://hdl.handle.net/10536/DRO/DU:30085698

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