The Use of SCUBA and Punctuated Transects to Count a Temperate Reef Fish.

Rubicon Research Repository/Manakin Repository

The Use of SCUBA and Punctuated Transects to Count a Temperate Reef Fish.

Show full item record


Title: The Use of SCUBA and Punctuated Transects to Count a Temperate Reef Fish.
Author: Dixon, MS
Abstract: While traditional fishery sampling techniques allow for large sample size sand large area coverage, they are often destructive and do not provide fine-scale spatial resolution. A variety of in-situ sampling techniques including, SCUBA, remotely operated vehicles, remote video, and manned submersibles allow observers to look more closely at individual fish, observe behavior, ascertain habitat relationships, and collect small-scale spatial data in a nondestructive manner. Punctuated transects and in-situ enumeration by divers using SCUBA were employed to study the seasonal abundance of adult tautog, Tautogaonitis, at two coastal reefs in Rhode Island. Three 30 meter transects, punctuated with 6 stations at 5 meter intervals, were swum at each of the two sites. All fish within a 2 meter 180° arc of each station were counted for a total of 3 minutes. Data on numbers of fish, size distribution, sex ratio, and behavior were recorded. Sampling occurred at bi-weekly intervals between April, 1992 and October, 1992. The data indicate that adults undergo seasonal movements during the spawning season. This method of sampling proved to be an effective means to closely observe fish in their natural setting on repeated visits. Numerical data, behavioral observations, and time series data were all easily obtained using SCUBA and punctuated transects.
Description: American Academy of Underwater Sciences (http://www.aaus.org/)
URI: http://archive.rubicon-foundation.org/4638
Date: 1997

Files in this item

Files Size Format View
AAUS_1997_6.pdf 2.137Mb PDF View/Open

This item appears in the following Collection(s)

Show full item record

Browse

My Account