Revisión de la distribución de pequeños cetaceos frente al Perú

Review of the distribution of small cetaceans off Peru. The little information available on the occurrence of small cetaceans in Peruvian marine waters is reviewed. Data obtained between 1982 and 1987 by port monitoring, surveys of beaches and fish dumps, and sightings are included.Eighteen species of small cetaceans, belonging to four families, are presently known to occur at least occasionally within the 200 nautical miles limit of Peruvian marine waters; six species (markes with asterisk) represent new records for the study area. The species are: Phocoens spinipinnis, Tursiops truncatus, Grampus griseus; Lagenorhynchus obscurus; Delphinus delphis; Stenella attenuate; S. longirostris; S. coerulealba; Peponocephala electra (*); Feresa attenuate (*); Globicephala melaena; G. macrorhynchus (*); Pseudorca crassidens; Orcinus orca; Kogia breviceps; K. simus (*); Ziphius cavirostris (*); Mesoploson sp. (*)

An integrated encyclopedia of DNA elements in the human genome.

The human genome encodes the blueprint of life, but the function of the vast majority of its nearly three billion bases is unknown. The Encyclopedia of DNA Elements (ENCODE) project has systematically mapped regions of transcription, transcription factor association, chromatin structure and histone modification. These data enabled us to assign biochemical functions for 80% of the genome, in particular outside of the well-studied protein-coding regions. Many discovered candidate regulatory elements are physically associated with one another and with expressed genes, providing new insights into the mechanisms of gene regulation. The newly identified elements also show a statistical correspondence to sequence variants linked to human disease, and can thereby guide interpretation of this variation. Overall, the project provides new insights into the organization and regulation of our genes and genome, and is an expansive resource of functional annotations for biomedical research