Spatial management of marine resources can enhance the recovery of predators and avoid local depletion of forage fish

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

The eastern Baltic cod stock has recently started to recover, after two decades of severe depletion, however with unexpected side effects. The stock has not re-occupied its former wide distribution range, but remains concentrated in a limited area in the southern Baltic Sea. The biomass of forage fish, i.e., sprat and herring, is historic low in this area, which in combination with increasing cod stock results in locally high predation mortality of forage fish and cannibalism of cod. In line with low prey availability, body weight and nutritional condition of cod drastically declined. In the southern Baltic Sea, cod competes with pelagic fisheries for the limited resources of sprat and herring, while the largest biomass of these species is currently found outside the distribution range of cod. Accounting for spatial overlap between species is crucial in developing ecosystem based fisheries management to enhance the recovery of predator stocks
Original languageEnglish
JournalConservation Letters
Volume5
Issue number6
Pages (from-to)486-492
ISSN1755-263X
DOIs
Publication statusPublished - 2012

Cite this

@article{b172d08ea1694beab1f15b2ae63effac,
title = "Spatial management of marine resources can enhance the recovery of predators and avoid local depletion of forage fish",
abstract = "The eastern Baltic cod stock has recently started to recover, after two decades of severe depletion, however with unexpected side effects. The stock has not re-occupied its former wide distribution range, but remains concentrated in a limited area in the southern Baltic Sea. The biomass of forage fish, i.e., sprat and herring, is historic low in this area, which in combination with increasing cod stock results in locally high predation mortality of forage fish and cannibalism of cod. In line with low prey availability, body weight and nutritional condition of cod drastically declined. In the southern Baltic Sea, cod competes with pelagic fisheries for the limited resources of sprat and herring, while the largest biomass of these species is currently found outside the distribution range of cod. Accounting for spatial overlap between species is crucial in developing ecosystem based fisheries management to enhance the recovery of predator stocks",
author = "Margit Eero and Morten Vinther and Holger Haslob and Bastian Huwer and Michele Casini and Marie Storr-Paulsen and Fritz K{\"o}ster",
year = "2012",
doi = "10.1111/j.1755-263X.2012.00266.x",
language = "English",
volume = "5",
pages = "486--492",
journal = "Conservation Letters",
issn = "1755-263X",
publisher = "John Wiley & Sons Ltd",
number = "6",

}

Spatial management of marine resources can enhance the recovery of predators and avoid local depletion of forage fish. / Eero, Margit; Vinther, Morten; Haslob, Holger; Huwer, Bastian; Casini, Michele; Storr-Paulsen, Marie; Köster, Fritz.

In: Conservation Letters, Vol. 5, No. 6, 2012, p. 486-492.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Spatial management of marine resources can enhance the recovery of predators and avoid local depletion of forage fish

AU - Eero, Margit

AU - Vinther, Morten

AU - Haslob, Holger

AU - Huwer, Bastian

AU - Casini, Michele

AU - Storr-Paulsen, Marie

AU - Köster, Fritz

PY - 2012

Y1 - 2012

N2 - The eastern Baltic cod stock has recently started to recover, after two decades of severe depletion, however with unexpected side effects. The stock has not re-occupied its former wide distribution range, but remains concentrated in a limited area in the southern Baltic Sea. The biomass of forage fish, i.e., sprat and herring, is historic low in this area, which in combination with increasing cod stock results in locally high predation mortality of forage fish and cannibalism of cod. In line with low prey availability, body weight and nutritional condition of cod drastically declined. In the southern Baltic Sea, cod competes with pelagic fisheries for the limited resources of sprat and herring, while the largest biomass of these species is currently found outside the distribution range of cod. Accounting for spatial overlap between species is crucial in developing ecosystem based fisheries management to enhance the recovery of predator stocks

AB - The eastern Baltic cod stock has recently started to recover, after two decades of severe depletion, however with unexpected side effects. The stock has not re-occupied its former wide distribution range, but remains concentrated in a limited area in the southern Baltic Sea. The biomass of forage fish, i.e., sprat and herring, is historic low in this area, which in combination with increasing cod stock results in locally high predation mortality of forage fish and cannibalism of cod. In line with low prey availability, body weight and nutritional condition of cod drastically declined. In the southern Baltic Sea, cod competes with pelagic fisheries for the limited resources of sprat and herring, while the largest biomass of these species is currently found outside the distribution range of cod. Accounting for spatial overlap between species is crucial in developing ecosystem based fisheries management to enhance the recovery of predator stocks

U2 - 10.1111/j.1755-263X.2012.00266.x

DO - 10.1111/j.1755-263X.2012.00266.x

M3 - Journal article

VL - 5

SP - 486

EP - 492

JO - Conservation Letters

JF - Conservation Letters

SN - 1755-263X

IS - 6

ER -