196 
Fishery Bulletin 106(2) 
158° 10' E 158°20'E 
N 
Pacific 
10 kilometers Ocean 
I 1 L 
158°06’50'E 
Receiver leoend 
® Center of FSA ® KMS boundary O Others 
Figure 1 
(A) Map of the Pohnpei Island showing the general catch locales (circles) and number (ital- 
ics) of recaptured conventionally tagged squaretail coralgrouper (Plectropomus areolatus). 
Catch locales are (counterclockwise from left) Dawak, Peleng Channel, Nalap, Liap, Penieu, 
and Temmen. Catch probabilities (in parentheses), or the number of recaptures anticipated 
within a municipal reef area, are based on the total number of recaptures from this study 
(January 2005-February 2006) divided by the percent fishing effort allocated to a municipal 
reef area. Effort estimates were derived from a 2006 market survey that included interviews 
of 1123 commercial reef fishermen (Rhodes et al., 2007). Estimates of catch probability 
exclude recaptures with unreported catch locales (n = 5) and fish captured by researchers 
inside the Kehpara Marine Sanctuary (KMS) (n= 20). Municipalities (Nett, Sokehs, Kitti, 
Madelonimw, Uh) are separated by black diagonal lines. (B) Inset map shows the direc- 
tion of movement and number of individuals detected by Vemco VR2 acoustic receivers 
outside the KMS during the study period. The Kehpara Marine Sanctuary is represented 
by the area outlined in gray. FSA=fish spawning aggregation. Others = other receivers. 
tricane methanesulfonate-seawater solution until fish 
lost equilibrium (—3—5 minutes). Following anesthesia 
and air bladder deflation, all individuals were weighed 
(nearest g body weight), measured (nearest mm total 
length [TL] and standard length [SL] ), and sex was 
determined macroscopically by using a 1-mm bore nylon 
cannula (Rhodes and Sadovy, 2002). 
To determine the potential distance of movement, 
times at liberty and catchment areas (defined as the 
area from which spawning individuals are drawn [Sa- 
dovy and Domeier, 2005]), all captured fish were tagged 
with a uniquely numbered Floy FT-1-94 conventional 
tag (Floy Tag, Seattle, WA) that provided contact and 
reward information. Of these Floy-tagged specimens, 
40 fish (20 males and 20 females) were surgically im- 
planted with Vemco V16 acoustic transmitters (Vemco 
AMIRIX Systems, Halifax, Nova Scotia) in January and 
February. For tag implantation, abdominal incisions 
(—3.5 cm) were made just anterior to the vent and were 
closed with ConMed Reflex One® 35 Wide surgical skin 
staples (ConMed Endosurgery, Utica, NY) (Tupper and 
Able, 2000). After surgery, fish were allowed to recover 
10-20 min onboard in fresh aerated seawater before 
release into shallow (2-5 m) water near the reef crest. 
Most acoustic-tagged and some Floy-tagged fish were 
observed from the surface by snorkel divers to follow 
initial recovery and to monitor potential predation. 
Acoustic tracking and tag recovery 
For acoustic tracking of fish distance and direction of 
movement, and to determine residency times within the 
FSA, a total of 7 Vemco VR2 receivers were moored in 
January 2005 at the following locations: center of the 
FSA, at north and south KMS boundaries, within the 
Kehpara and Peleng channels adjacent to the FSA, and 
seaward of Dawak and Nalap islands that are north 
and south, respectively, of channels adjacent to the FSA 
