Weijerman et al. Trends in biomass of coral reef fishes, derived from creel surveys in Guam 
253 
Appendix 3 
Interviews and catch per unit of effort 
Appendix 3 Table 1 
Number of interviews conducted as part of shore-based creel surveys conducted around Guam, per gear type per year. For 
some gear types in some years, the total number of interviews was between 1 and 4 or <5. 
1985 
1986 
1987 
1988 
1989 
1990 
1991 
1992 
1993 
1994 
1995 
1996 
1997 
1998 
1999 
Hook and line 
53 
46 
32 
38 
45 
59 
63 
66 
61 
83 
78 
76 
87 
84 
85 
Gill net 
38 
34 
28 
28 
25 
41 
35 
40 
33 
36 
49 
31 
50 
48 
51 
Surround net 
7 
<5 
<5 
5 
0 
<5 
0 
<5 
0 
<5 
<5 
0 
0 
0 
0 
Snorkel spear 
35 
20 
21 
18 
14 
14 
15 
16 
14 
36 
21 
20 
25 
34 
49 
Scuba spear 
<5 
<5 
0 
<5 
<5 
<5 
<5 
<5 
<5 
<5 
9 
<5 
<5 
<5 
<5 
Drag net 
8 
9 
8 
<5 
<5 
5 
7 
7 
6 
<5 
5 
<5 
<5 
<5 
10 
2000 
2001 
2002 
2003 
2004 
2005 
2006 
2007 
2008 
2009 
2010 
2011 
2012 
Hook and line 
86 
86 
60 
78 
61 
60 
65 
61 
64 
62 
57 
48 
45 
Gill net 
41 
31 
28 
16 
15 
13 
13 
11 
12 
6 
13 
12 
9 
Surround net 
0 
0 
0 
<5 
<5 
0 
<5 
<5 
<5 
0 
<5 
<5 
0 
Snorkel spear 
28 
27 
19 
14 
10 
8 
9 
5 
6 
5 
7 
<5 
11 
Scuba spear 
<5 
<5 
<5 
<5 
0 
0 
0 
0 
0 
0 
<5 
0 
0 
Drag net 
4 
<5 
0 
0 
0 
<5 
<5 
0 
0 
0 
0 
0 
0 
Appendix 3 Table 2 
Annual values of catch per unit of effort around Guam, by gear type and year, calculated by the Western Pacific Fisheries 
Information Network, NOAA Pacific Islands Fisheries Science Center, from data collected during shore-based creel surveys. 
Values in bold are the mean of the 3 previous years for values that were missing in the survey-data.. 
1985 
1986 
1987 
1988 
1989 
1990 
1991 1992 1993 
1994 
1995 
1996 
1997 
1998 
1999 
Hook and line 
0.18 
0.21 
0.20 
0.09 
0.11 
0.14 
0.16 
0.09 0.06 
0.09 
0.14 
0.08 
0.10 
0.10 
0.11 
Gill net 
1.19 
1.16 
1.11 
1.76 
1.08 
1.18 
0.94 
0.85 0.45 
0.64 
0.61 
0.48 
0.49 
0.29 
0.51 
Surround net 
1.79 
3.07 
0.48 
1.19 
0.72 
0.93 
0.93 
0.93 0.37 
2.14 
0.65 
0.65 
0.51 
0.51 
0.93 
Snorkel spear 
1.50 
0.87 
0.71 
0.58 
0.49 
0.43 
0.53 
0.72 0.92 
0.88 
0.82 
0.49 
0.73 
1.73 
0.87 
Scuba spear 
1.25 
1.25 
1.25 
0.53 
0.89 
0.34 
0.40 
0.32 0.34 
0.34 
2.04 
0.32 
0.34 
0.64 
0.29 
Drag net 
1.11 
1.23 
0.95 
0.20 
2.66 
0.91 
2.06 
2.96 0.91 
2.11 
1.54 
1.52 
1.42 
1.83 
1.66 
2000 
2001 
2002 
2003 
2004 
2005 
2006 
; 2007 : 
2008 
2009 
2010 
2011 
2012 
Hook and line 
0.08 
0.08 
0.07 
0.09 
0.08 
0.05 
0.08 
0.09 
0.06 
0.07 
0.03 
0.09 
0.14 
Gill net 
0.62 
0.50 
0.46 
0.35 
0.25 
0.66 
0.18 
0.45 
0.63 
0.15 
1.26 
0.09 
0.77 
Surround net 
0.65 
0.93 
0.65 
0.37 
0.93 
0.93 
0.65 
0.65 
0.51 
0.93 
0.51 
0.93 
0.51 
Snorkel spear 
0.64 
0.91 
0.91 
1.49 
0.74 
0.29 
0.47 
0.40 
0.12 
0.12 
0.06 
0.06 
0.38 
Scuba spear 
0.32 
0.40 
0.40 
0.24 
0.40 
0.34 
0.32 
0.40 
0.35 
0.35 
0.37 
0.40 
0.24 
Drag net 
0.31 
1.21 
0.91 
0.81 
2.11 
0.31 
1.08 
0.31 
0.56 
2.11 
0.99 
0.91 
0.31 
