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Synergistic patterns of threat and the challenges facing global anguillid eel conservation

Research output: Contribution to Journal/Magazine › Journal article › peer-review

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Synergistic patterns of threat and the challenges facing global anguillid eel conservation. / Jacoby, David; Casselman, John M.; Crook, Vicki et al.
In: Global Ecology and Conservation, Vol. 4, 31.07.2015, p. 321-333.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Jacoby, D, Casselman, JM, Crook, V, DeLucia, M-B, Ahn, H, Kaifu, K, Kurwie, T, Sasal, P, Silfvergrip, AMC, Smith, KG, Uchida, K, Walker, AM & Gollock, MJ 2015, 'Synergistic patterns of threat and the challenges facing global anguillid eel conservation', Global Ecology and Conservation, vol. 4, pp. 321-333. https://doi.org/10.1016/j.gecco.2015.07.009

APA

Jacoby, D., Casselman, J. M., Crook, V., DeLucia, M.-B., Ahn, H., Kaifu, K., Kurwie, T., Sasal, P., Silfvergrip, A. M. C., Smith, K. G., Uchida, K., Walker, A. M., & Gollock, M. J. (2015). Synergistic patterns of threat and the challenges facing global anguillid eel conservation. Global Ecology and Conservation, 4, 321-333. https://doi.org/10.1016/j.gecco.2015.07.009

Vancouver

Jacoby D, Casselman JM, Crook V, DeLucia MB, Ahn H, Kaifu K et al. Synergistic patterns of threat and the challenges facing global anguillid eel conservation. Global Ecology and Conservation. 2015 Jul 31;4:321-333. doi: 10.1016/j.gecco.2015.07.009

Author

Jacoby, David ; Casselman, John M. ; Crook, Vicki et al. / Synergistic patterns of threat and the challenges facing global anguillid eel conservation. In: Global Ecology and Conservation. 2015 ; Vol. 4. pp. 321-333.

Bibtex

@article{1e85cc4f2c01409aa30c81134b266df3,
title = "Synergistic patterns of threat and the challenges facing global anguillid eel conservation",
abstract = "With broad distributions, diadromous fishes can be exposed to multiple threats at different stages of development. For the primarily catadromous eels of the family Anguillidae, there is growing international concern for the population abundance and escapement trends of some of these species and yet incomplete knowledge of their remarkable life-histories hampers management and conservation. Anguillids experience a suite of pressures that include habitat loss/modification, migration barriers, pollution, parasitism, exploitation, and fluctuating oceanic conditions that likely have synergistic and regionally variable impacts, even within species. In beginning to redress this rather fragmented picture, we evaluated the extinction risk of these species using the IUCN Red List of Threatened Species Categories and Criteria to infer population-wide trends from catch and monitoring data. Here we consolidate and build upon these species assessments by presenting an overview of the current state of global eel data and conservation, categorising the knowledge gaps and geographic regions where resources are needed and discussing future recommendations to improve our understanding of anguillids. We find stark disparity between the quality and length of data available to assess population trends and conservation priorities in temperate and tropical anguillids. Of the 13 species assessed, four were listed as {\textquoteleft}Threatened{\textquoteright} (Vulnerable, Endangered or Critically Endangered); four were Near Threatened, three were Data Deficient and two were deemed Least Concern. Comparing with other diadromous species, we examine the multiple threats that impact eels during their different life-history stages, highlighting the challenges of applying the Red List Categories and Criteria to geographically-expansive, catadromous and panmictic groups of species.",
keywords = "Anguillidae, Freshwater eels, Population trends, Red List, Threats, Vulnerability",
author = "David Jacoby and Casselman, {John M.} and Vicki Crook and Mari-Beth DeLucia and Hyojin Ahn and Kenzo Kaifu and Tagried Kurwie and Pierre Sasal and Silfvergrip, {Andres M. C.} and Smith, {Kevin G.} and Kazuo Uchida and Walker, {Alan M.} and Gollock, {Matthew J.}",
year = "2015",
month = jul,
day = "31",
doi = "10.1016/j.gecco.2015.07.009",
language = "English",
volume = "4",
pages = "321--333",
journal = "Global Ecology and Conservation",
issn = "2351-9894",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Synergistic patterns of threat and the challenges facing global anguillid eel conservation

AU - Jacoby, David

AU - Casselman, John M.

AU - Crook, Vicki

AU - DeLucia, Mari-Beth

AU - Ahn, Hyojin

AU - Kaifu, Kenzo

AU - Kurwie, Tagried

AU - Sasal, Pierre

AU - Silfvergrip, Andres M. C.

AU - Smith, Kevin G.

AU - Uchida, Kazuo

AU - Walker, Alan M.

AU - Gollock, Matthew J.

PY - 2015/7/31

Y1 - 2015/7/31

N2 - With broad distributions, diadromous fishes can be exposed to multiple threats at different stages of development. For the primarily catadromous eels of the family Anguillidae, there is growing international concern for the population abundance and escapement trends of some of these species and yet incomplete knowledge of their remarkable life-histories hampers management and conservation. Anguillids experience a suite of pressures that include habitat loss/modification, migration barriers, pollution, parasitism, exploitation, and fluctuating oceanic conditions that likely have synergistic and regionally variable impacts, even within species. In beginning to redress this rather fragmented picture, we evaluated the extinction risk of these species using the IUCN Red List of Threatened Species Categories and Criteria to infer population-wide trends from catch and monitoring data. Here we consolidate and build upon these species assessments by presenting an overview of the current state of global eel data and conservation, categorising the knowledge gaps and geographic regions where resources are needed and discussing future recommendations to improve our understanding of anguillids. We find stark disparity between the quality and length of data available to assess population trends and conservation priorities in temperate and tropical anguillids. Of the 13 species assessed, four were listed as ‘Threatened’ (Vulnerable, Endangered or Critically Endangered); four were Near Threatened, three were Data Deficient and two were deemed Least Concern. Comparing with other diadromous species, we examine the multiple threats that impact eels during their different life-history stages, highlighting the challenges of applying the Red List Categories and Criteria to geographically-expansive, catadromous and panmictic groups of species.

AB - With broad distributions, diadromous fishes can be exposed to multiple threats at different stages of development. For the primarily catadromous eels of the family Anguillidae, there is growing international concern for the population abundance and escapement trends of some of these species and yet incomplete knowledge of their remarkable life-histories hampers management and conservation. Anguillids experience a suite of pressures that include habitat loss/modification, migration barriers, pollution, parasitism, exploitation, and fluctuating oceanic conditions that likely have synergistic and regionally variable impacts, even within species. In beginning to redress this rather fragmented picture, we evaluated the extinction risk of these species using the IUCN Red List of Threatened Species Categories and Criteria to infer population-wide trends from catch and monitoring data. Here we consolidate and build upon these species assessments by presenting an overview of the current state of global eel data and conservation, categorising the knowledge gaps and geographic regions where resources are needed and discussing future recommendations to improve our understanding of anguillids. We find stark disparity between the quality and length of data available to assess population trends and conservation priorities in temperate and tropical anguillids. Of the 13 species assessed, four were listed as ‘Threatened’ (Vulnerable, Endangered or Critically Endangered); four were Near Threatened, three were Data Deficient and two were deemed Least Concern. Comparing with other diadromous species, we examine the multiple threats that impact eels during their different life-history stages, highlighting the challenges of applying the Red List Categories and Criteria to geographically-expansive, catadromous and panmictic groups of species.

KW - Anguillidae

KW - Freshwater eels

KW - Population trends

KW - Red List

KW - Threats

KW - Vulnerability

U2 - 10.1016/j.gecco.2015.07.009

DO - 10.1016/j.gecco.2015.07.009

M3 - Journal article

VL - 4

SP - 321

EP - 333

JO - Global Ecology and Conservation

JF - Global Ecology and Conservation

SN - 2351-9894

ER -