No Pacific Ocean
Mexico
Tres Marias Islands
E side of Maria Magdalena Island, N end
16Aug1961
1300
21°28.7'N - 106°22.2'W
21.478, -106.370
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0-25 ft
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B6108
25
RV Black Douglas
rotenone; diving; dipnets
D Dockins, P Sloan, R Kiwala, D Meyer, D Wroncy
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largely sand, some algae covered rocks
some algae
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