How to Fish with Pictures wikiHow4C. As a result, demersal fish and rockfish muscle had pretty large AVE and SD values for T2. Rockfish muscle had relatively small EDGE values for T2. Demersal fish muscle had fairly high D and D EDGE values, and rockfish muscle had the smallest D EDGE value. Collectively, the biochemical, physiological and structural properties of fish muscle tissues were highly correlated with ecological traits, equivalent to the circulation patterns and habitat use of fish. Multidimensional profiling of fish muscle tissue in species with different ecological traits.