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Population comparison of right whale body condition reveals poor state of the North Atlantic right whale

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Standard

Population comparison of right whale body condition reveals poor state of the North Atlantic right whale. / Christiansen, Fredrik Oscar; Dawson, Stephen M. ; Durban, John W. ; Fearnbach, Holly ; Miller, Carolyn A. ; Bejder, Lars; Uhart, Marcela ; Sironi, Mariano ; Corkeron, Peter ; Rayment, William ; Leunissen, Eva ; Haria, Eashani ; Ward, Rhianne ; Warick, Hunter A. ; Kerr, Iain ; Lynn, Morgan S. ; Pettis, Heather M. ; Moore, Michael J. .

In: Marine Ecology Progress Series, Vol. 640, 04.2020, p. 1–16.

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

Harvard

Christiansen, FO, Dawson, SM, Durban, JW, Fearnbach, H, Miller, CA, Bejder, L, Uhart, M, Sironi, M, Corkeron, P, Rayment, W, Leunissen, E, Haria, E, Ward, R, Warick, HA, Kerr, I, Lynn, MS, Pettis, HM & Moore, MJ 2020, 'Population comparison of right whale body condition reveals poor state of the North Atlantic right whale', Marine Ecology Progress Series, vol. 640, pp. 1–16. https://doi.org/10.3354/meps13299

APA

Christiansen, F. O., Dawson, S. M., Durban, J. W., Fearnbach, H., Miller, C. A., Bejder, L., Uhart, M., Sironi, M., Corkeron, P., Rayment, W., Leunissen, E., Haria, E., Ward, R., Warick, H. A., Kerr, I., Lynn, M. S., Pettis, H. M., & Moore, M. J. (2020). Population comparison of right whale body condition reveals poor state of the North Atlantic right whale. Marine Ecology Progress Series, 640, 1–16. https://doi.org/10.3354/meps13299

CBE

Christiansen FO, Dawson SM, Durban JW, Fearnbach H, Miller CA, Bejder L, Uhart M, Sironi M, Corkeron P, Rayment W, Leunissen E, Haria E, Ward R, Warick HA, Kerr I, Lynn MS, Pettis HM, Moore MJ. 2020. Population comparison of right whale body condition reveals poor state of the North Atlantic right whale. Marine Ecology Progress Series. 640: 1–16. https://doi.org/10.3354/meps13299

MLA

Vancouver

Christiansen FO, Dawson SM, Durban JW, Fearnbach H, Miller CA, Bejder L et al. Population comparison of right whale body condition reveals poor state of the North Atlantic right whale. Marine Ecology Progress Series. 2020 Apr;640: 1–16. https://doi.org/10.3354/meps13299

Author

Christiansen, Fredrik Oscar ; Dawson, Stephen M. ; Durban, John W. ; Fearnbach, Holly ; Miller, Carolyn A. ; Bejder, Lars ; Uhart, Marcela ; Sironi, Mariano ; Corkeron, Peter ; Rayment, William ; Leunissen, Eva ; Haria, Eashani ; Ward, Rhianne ; Warick, Hunter A. ; Kerr, Iain ; Lynn, Morgan S. ; Pettis, Heather M. ; Moore, Michael J. . / Population comparison of right whale body condition reveals poor state of the North Atlantic right whale. In: Marine Ecology Progress Series. 2020 ; Vol. 640. pp. 1–16.

Bibtex

@article{118fc348d1cf482eb348a57fb03a28ad,
title = "Population comparison of right whale body condition reveals poor state of the North Atlantic right whale",
abstract = "The North Atlantic right whale Eubalaena glacialis (NARW), currently numbering <410 individuals, is on a trajectory to extinction. Al though direct mortality from ship strikes and fishing gear entanglements remain the major threats to the population, reproductive failure, resulting from poor body condition and sublethal chronic entanglement stress, is believed to play a crucial role in the population decline. Using photo grammetry from unmanned aerial vehicles, we conducted the largest population assessment of right whale body condition to date, to determine if the condition of NARWs was poorer than 3 seemingly healthy (i.e. growing) populations of southern right whales E. australis (SRWs) in Argentina, Australia and New Zealand. We found that NARW juveniles, adults and lactating females all had lower body condition scores compared to the SRW populations. While some of the difference could be the result of genetic isolation and adaptations to local environmental conditions, the magnitude suggests that NARWs are in poor condition, which could be suppressing their growth, survival, age of sexual maturation and calving rates. NARW calves were found to be in good condition. Their body length, however, was strongly determined by the body condition of their mothers, suggesting that the poor condition of lactating NARW females may cause a reduction in calf growth rates. This could potentially lead to a reduction in calf survival or an in crease in female calving intervals. Hence, the poor body condition of individuals within the NARW population is of major concern for its future viability.",
author = "Christiansen, {Fredrik Oscar} and Dawson, {Stephen M.} and Durban, {John W.} and Holly Fearnbach and Miller, {Carolyn A.} and Lars Bejder and Marcela Uhart and Mariano Sironi and Peter Corkeron and William Rayment and Eva Leunissen and Eashani Haria and Rhianne Ward and Warick, {Hunter A.} and Iain Kerr and Lynn, {Morgan S.} and Pettis, {Heather M.} and Moore, {Michael J.}",
year = "2020",
month = apr,
doi = "10.3354/meps13299",
language = "English",
volume = "640",
pages = " 1–16",
journal = "Marine Ecology - Progress Series",
issn = "0171-8630",
publisher = "Inter-Research",

}

RIS

TY - JOUR

T1 - Population comparison of right whale body condition reveals poor state of the North Atlantic right whale

AU - Christiansen, Fredrik Oscar

AU - Dawson, Stephen M.

AU - Durban, John W.

AU - Fearnbach, Holly

AU - Miller, Carolyn A.

AU - Bejder, Lars

AU - Uhart, Marcela

AU - Sironi, Mariano

AU - Corkeron, Peter

AU - Rayment, William

AU - Leunissen, Eva

AU - Haria, Eashani

AU - Ward, Rhianne

AU - Warick, Hunter A.

AU - Kerr, Iain

AU - Lynn, Morgan S.

AU - Pettis, Heather M.

AU - Moore, Michael J.

PY - 2020/4

Y1 - 2020/4

N2 - The North Atlantic right whale Eubalaena glacialis (NARW), currently numbering <410 individuals, is on a trajectory to extinction. Al though direct mortality from ship strikes and fishing gear entanglements remain the major threats to the population, reproductive failure, resulting from poor body condition and sublethal chronic entanglement stress, is believed to play a crucial role in the population decline. Using photo grammetry from unmanned aerial vehicles, we conducted the largest population assessment of right whale body condition to date, to determine if the condition of NARWs was poorer than 3 seemingly healthy (i.e. growing) populations of southern right whales E. australis (SRWs) in Argentina, Australia and New Zealand. We found that NARW juveniles, adults and lactating females all had lower body condition scores compared to the SRW populations. While some of the difference could be the result of genetic isolation and adaptations to local environmental conditions, the magnitude suggests that NARWs are in poor condition, which could be suppressing their growth, survival, age of sexual maturation and calving rates. NARW calves were found to be in good condition. Their body length, however, was strongly determined by the body condition of their mothers, suggesting that the poor condition of lactating NARW females may cause a reduction in calf growth rates. This could potentially lead to a reduction in calf survival or an in crease in female calving intervals. Hence, the poor body condition of individuals within the NARW population is of major concern for its future viability.

AB - The North Atlantic right whale Eubalaena glacialis (NARW), currently numbering <410 individuals, is on a trajectory to extinction. Al though direct mortality from ship strikes and fishing gear entanglements remain the major threats to the population, reproductive failure, resulting from poor body condition and sublethal chronic entanglement stress, is believed to play a crucial role in the population decline. Using photo grammetry from unmanned aerial vehicles, we conducted the largest population assessment of right whale body condition to date, to determine if the condition of NARWs was poorer than 3 seemingly healthy (i.e. growing) populations of southern right whales E. australis (SRWs) in Argentina, Australia and New Zealand. We found that NARW juveniles, adults and lactating females all had lower body condition scores compared to the SRW populations. While some of the difference could be the result of genetic isolation and adaptations to local environmental conditions, the magnitude suggests that NARWs are in poor condition, which could be suppressing their growth, survival, age of sexual maturation and calving rates. NARW calves were found to be in good condition. Their body length, however, was strongly determined by the body condition of their mothers, suggesting that the poor condition of lactating NARW females may cause a reduction in calf growth rates. This could potentially lead to a reduction in calf survival or an in crease in female calving intervals. Hence, the poor body condition of individuals within the NARW population is of major concern for its future viability.

U2 - 10.3354/meps13299

DO - 10.3354/meps13299

M3 - Journal article

VL - 640

SP - 1

EP - 16

JO - Marine Ecology - Progress Series

JF - Marine Ecology - Progress Series

SN - 0171-8630

ER -