Dear colleagues,

On behalf of all co-authors, I am pleased to announce the publication of our article: 'Scientific collaboration networks in research on human threats to cetaceans in Brazil' published in Marine Policy.

Abstract: To  better  understand  the  threats  posed  by  human  activities  on  cetaceans,  we  compiled  published  studies  and determined  where,  how,  and  by  whom  the  research  on  this  subject  has  been  conducted  in  Brazil.  We  also determined  which  cetacean  species  were  mostly  investigated  in  these  studies.  We  gathered  the  available  scientific  literature  published  from  1986  to  2016  that  contained  search  terms  in  English  that  depicted  major cetacean  threats.  Then,  we  developed  a  collaboration  network  among  the  authors’  institutions  and  generated  a distribution  map  of  the  investigated  threats  and  study  areas.  From  the  1047  compiled  publications,  we  selected 103  studies  that  precisely  addressed  cetacean  threats.  The  selected  studies  were  carried  out  by  82  institutions from  12  countries.  Most  of  these  institutions  were  universities  (n = 55),  followed  by  non-governmental  organizations  (n  ¼ 15)  and  research  institutes  (n  = 12).  Among  the  two  cetacean  suborders,  odontocetes  were  the  most representative,  with  Sotalia  guianensis  and  Pontoporia  blainvillei  present  in  50  and  38  publications,  respectively. For  mysticetes,  publications  on  Megaptera  novaeangliae  (n  = 6)  and  Eubalaena  australis  (n  = 5)  were  the  most common.  Among  the  addressed  threats,  more  than  half  (54.4%)  of  the  publications  focused  on  pollution,  followed  by  bycatch  (19.4%)  and  vessel  traffic  (10.7%).  Most  of  the  study  areas  took  place  in  the  states  of  Rio  de Janeiro  (22.4%),  São  Paulo  (19.7%),  and  Rio  Grande  do  Sul  (12.9%).  Six  institutions  were  the  most  prevalent  in the  collaboration  networks,  and  their  location  corresponded  to  hotspots  of  cetacean  diversity.  Our  findings  may contribute  to  identifying  research  priorities  and  guide  the  conservation  of  cetacean  species  in  Brazil.

The paper is available in open access at http://www.sciencedirect.com/science/article/pii/S0308597X18305876

Citation: Marega-Imamura, M., Michalski, F., Silva, K., Schiavetti, A., Le Pendu, Y., Oliveira, L. C. 2020. Scientific collaboration networks in research on human threats to cetaceans in Brazil. Marine Policy, vol. 112, 103738, DOI: 10.1016/j.marpol.2019.103738.

If you have any questions please do not hesitate to contact me: mmimamura@uesc.br

Best regards,

Marcela Marega Imamura
Ph.D. candidate in Ecology and Biodiversity Conservation
Aquatic Mammals Research Group of Ilhéus
Etnoconservation and Protected Areas Laboratory
Universidade Estadual de Santa Cruz, Ilhéus, BA, Brazil