=LDR 22 4500 =001 1871 =082 04$a2008 WAL =100 1\$aWalsh, Laura =245 10$aFish community structure of artificial vs. natural bommies; implications for reef fish conservation =260 \\$aDublin :$bUniversity of Dublin, Trinity College,$c2008 =650 \0$aTheses =852 \\$bFreeman Library$h2008 WAL