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84 
Fishery Bulletin 1 12(1) 
74°0'0"W 73°30‘0"W 
Figure 1 
(A) Location and bathymetry (20-m isobaths) of the Historic Area 
Remediation Site (HARS) in the mid-Atlantic Bight. (B) Grid of sta- 
tions where 72 acoustic receivers were deployed (filled circles) and 
locations where Black Sea Bass ( Centropristis striata) were released 
(filled triangles) at the HARS (solid black line) between May and 
July 2003 . The contour lines are 1-m isobaths and the acoustic grid 
encompasses 46.1 km 2 of the HARS. Column (A-I) and row (1-8) 
designations represent naming conventions for acoustic stations. 
Dashed squares at stations B1 and H7 indicate locations of sen- 
sors used to measure temperature and salinity at the bottom of the 
seafloor. 
(Fabrizio et al., 2013), and this population 
supports recreational fisheries in New York 
and New Jersey. 
At each acoustic station, we deployed an 
array that consisted of a 400-lb pyramidal 
anchor, an acoustic receiver (VR2), and a 
shallow-water release encased in a positive- 
ly buoyant canister (SWR Pop-Up recovery 
system, ORE Offshore, West Wareham, MA). 
To provide maximum horizontal sensitivity 
(Clements et al., 2005), receivers w T ere ori- 
ented vertically. Pop-up buoys facilitated 
retrieval of receivers during fall 2003 and 
in summer 2004. Temperature and salinity 
sensors (SBE 16 SeaCAT Recorder, Sea-Bird 
Electronics, Inc., Bellevue, WA) were de- 
ployed at stations B1 and H7 (for locations 
of these stations, see Fig. IB), suspended 
about 3 m above the substratum; these sen- 
sors recorded data every 30 min. We used 
mean daily temperature, mean daily salin- 
ity, and mean daily difference in tempera- 
ture and salinity between the 2 stations as 
measures of environmental conditions at the 
site. In this study, we analyzed acoustic data 
collected from 30 May to 14 December 2003 
to estimate home ranges and describe move- 
ments of Black Sea Bass in the mid-Atlantic 
Bight during their inshore residency period. 
Implantation of transmitters 
We captured 129 Black Sea Bass at vari- 
ous locations within the acoustic grid at 
the HARS between 30 May and 16 July 
2003 and implanted them with acoustic 
transmitters before release near the loca- 
tion of capture (Fig. IB). Fish identifica- 
tion was made on the basis of Collette and 
Klein-MacPhee (2002). Black Sea Bass were 
captured by either hook-and-line angling 
(n=45) or commercial fish traps (n= 84) that 
were allowed to soak at the site for 1-3 
nights before retrieval. Upon capture, all 
fish were immediately placed into onboard 
holding tanks supplied with flow-through 
seawater. Although swim bladder inflation 
was evident in most fish, neither deflation 
with a hypodermic needle (Collins et ah, 
1999) nor “hanging” the traps at a depth of 
10 m (Neufeld and Spence, 2004) completely 
eliminated decompression trauma. Before 
surgery, we anesthetized fish with 80 mg/L 
Aqui-S (Aqui-S New Zealand Ltd., Lower 
Hutt, New Zealand); this concentration al- 
lowed us to induce anesthesia in reasonably 
short times (mean, 3.3 min; range, 1. 1-7.7 
min; n=127 [induction time was not record- 
ed for 2 fish]). 
