SPECIES

Pink-footed Shearwater Ardenna creatopus Scientific name definitions

Ryan D. Carle, Valentina Colodro, Jonathan Felis, Joshua Adams, and Peter J. Hodum
Version: 2.0 — Published April 9, 2022

Tables and Appendices

Table 1

Relative use of distinct Exclusive Economic Zones by tracked Pink-footed Shearwater (Ardenna creatopus) in the non-breeding period (i.e., all track locations north of 32ºS) and summary of fisheries with reported or documented pink-footed shearwater bycatch from peer-reviewed literature, gray literature, and personal communications with fisheries investigators (Enriqueta Velarde of Universidad Veracruzana, Mexico).

National Exclusive Economic Zone (listed north to south)

Pink-footed Shearwater % total tracking time

Fisheries with reported or documented pink-footed shearwater bycatch

Fishery typea

Methodb

Magnitude (mortality)c

Citation

Canada

1.6

none identified

na

unknown

na

United States

34.1

long line

trial fishery study

1 bird/33 sets

Gladics et al. 2017

observer program

estimated 3.33–6.77 (95% conf. int. 0.8–14.1) birds/year from 2010-2016

Jannot et al. 2018

trawl

observer program

estimated 0.48–2.35 (95% conf. int. 0–7.8) birds/year from 2010–2016

Jannot et al. 2018

Mexico

23.7

purse seine

observer program

present

Enriqueta Velarde unpubl. data

France (Clipperton Islands)

0.2

none identified

na

unknown

na

Guatemala

<0.1

long line

trial observer study

present

Davila Perez et al. 2009

El Salvador

<0.1

none identified

na

unknown

na

Costa Rica

0.5

none identified

na

unknown

na

Panama

0.1

none identified

na

unknown

na

Colombia

0.3

none identified

na

unknown

na

Ecuador (including Galapagos)

1.2

demersel long line

trial observer study

2 birds/417 sets (capture rate; fate unknown)

Mangel 2012

Peru

29.8

gill net

trial observer study

3 birds/914 sets; estimated 500-1000 birds/year

Mangel et al. 2012

trial fishery study

3 birds/729 sets

Bielli 2017

Chile

4.2

purse seine

observer program

1510 birds/1630 sets

Vega et al. 2018

trial fishery study

present

Suazo et al. 2014

gillnet, long line, purse seine

fisher interviews

estimated 911 birds/year (mostly gillnet)

Mangel et al. 2012

trawl

trial fishery study

present

Suazo et al. 2014; ATF-Chile 2013

demersel long line

fisher interviews

present

Mangel et al. 2012

International Seas

4.4

driftnet

observer program

present

Johnson et al. 1993a

observer program

estimated 412/year

Ogi et al. 1993

Table from Felis et al. 2019

a Fishery types are general and may represent small- or large-scale fisheries (or a combination) that may vary in vessel size, fleet size, and spatiotemporal fishing effort within a nation. Consult original sources for specific fishery information.

b “Observer program” is a government-sanctioned, fleet-wide, bycatch observation program. “Trial observer study” is an independent bycatch observation research project, often on a smaller scale. “Trial fishery study” is research-oriented fishing effort to study bycatch and/or gear modifications. “Fisher interviews” are information on bycatch collected from interviewing fishers in a particular fishery/region.

c Magnitude indicates the raw number of birds killed per number of sets monitored, unless otherwise noted. Additional birds may have been captured and released alive. An annual mortality estimate is presented when it was provided by the original source. Magnitude is noted as “present” if Pink-footed Shearwater bycatch was reported/documented but no quantification was provided in the original study.

Recommended Citation

Carle, R. D., V. Colodro, J. Felis, J. Adams, and P. J. Hodum (2022). Pink-footed Shearwater (Ardenna creatopus), version 2.0. In Birds of the World (P. G. Rodewald and B. K. Keeney, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.pifshe.02