Trade-offs between gear selectivity and logistics when sampling nekton from shallow open water habitats: a gear comparison study

Baker, Ronald, and Minello, Thomas J. (2011) Trade-offs between gear selectivity and logistics when sampling nekton from shallow open water habitats: a gear comparison study. Gulf and Caribbean Research, 23. pp. 37-48.

[img] PDF (Published Version) - Published Version
Restricted to Repository staff only

View at Publisher Website: http://www.usm.edu/gcrl/gulf_caribbean_r...
 
5


Abstract

We compared logistical issues and the catch composition, density, and size structure of nekton samples collected with a drop sampler, benthic sled, and a fine mesh cast net in shallow non-vegetated habitats of Galveston Bay, Texas. Approximately 16 cast net replicates were collected and sorted for every one drop or benthic sled sample. The drop sampler collected the greatest number of species and provided the highest density estimates for the majority of crustaceans and small demersal fishes; the sled provided comparable density estimates for penaeids and small demersal nekton, while under-representing more mobile fishes. Densities of small benthic nekton were underestimated by the cast net, but it provided the highest density estimates for larger and mobile fishes. Within the selectivity constraints of each gear, the sled and cast net provide viable alternatives to the drop sampler for sampling particular nekton from shallow open water habitats.

Item ID: 34387
Item Type: Article (Refereed Research - C1)
Keywords: gear efficiency; drop sampler; benthic sled; cast net; salt marsh
ISSN: 1528-0470
Funders: National Research Council Research Associateship Award
Date Deposited: 21 Aug 2014 06:24
FoR Codes: 06 BIOLOGICAL SCIENCES > 0602 Ecology > 060205 Marine and Estuarine Ecology (incl Marine Ichthyology) @ 100%
SEO Codes: 96 ENVIRONMENT > 9608 Flora, Fauna and Biodiversity > 960802 Coastal and Estuarine Flora, Fauna and Biodiversity @ 100%
Downloads: Total: 5
More Statistics

Actions (Repository Staff Only)

Item Control Page Item Control Page