| [asteroidea, echinoidea y holothuroidea in shallow bottoms of bahía de loreto, baja california sur, mexico]. | to evaluate echinoderm distribution, abundance and density a double 50 m transect, with a side observation range of 2.5 m was used at each of 11 stations (bimonthly samplings, aug. 1997-febr. 1998). in bahía de loreto the phylum echinodermata consists of 26 taxa. the greatest mean abundance by transect and mean densities in order of importance for echinoidea were: echinometra vanbrunti (94.1 +/- 52.9 ind, 0.25 ind/m2), centrostephanus coronatus (38.15 +/- 9.15 ind, 0.06 ind/m2), tripneustes depr ... | 2000 | 11487923 |
| [trophic ecology of the fish arothron meleagris (tetraodontiformes: tetraodontidae) from los frailes reef, southern baja california, mexico]. | monthly samples were taken from november 2004 to october 2005 in the los frailes reef, bcs, mexico. the objective was to determine the feeding habits of the pufferfish, arothron meleagris, as well as possible variations in feeding patterns due to size and/or sex. we captured 101 specimens, with all stomachs contained food. the index of relative importance (iri) was used to determine the main items; which were non-identified organic matter (niom) (30.44%), echinometra vanbrunti (26.25 %), porifer ... | 2009 | 19637693 |