ArticlePloS one2023
New insights into the recent collapse of Eastern Baltic cod from historical data on stock health.
Article in PloS one, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed, 31 citations in OpenAlex.
- Egg and larval production of Eastern Baltic cod in captivity over one spawning season.Journal of fish biology · 2026Article
- Assessing local adaptation and divergence at early life stages within Eastern Baltic cod (Gadus morhua).Journal of fish biology · 2026Article
- Weak effects of local prey density and spatial overlap on predation intensity in a temperate marine ecosystem.Ecological applications : a publication of the Ecological Society of America · 2025Article
- Prematuration differences in male and female Atlantic cod: Investigating sex ratio, length and ecotype disparities in juveniles.Journal of fish biology · 2025Article
- Bones, shells and baselines-how the past can inform modern marine management, protection and restoration.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025Review
- Genomic evidence for fisheries-induced evolution in Eastern Baltic cod.Science advances · 2025Article
- Spatial Change of Dominant Baltic Sea Demersal Fish Across Two Decades.Ecology and evolution · 2025Article
- Endoparasites in Grey Seals (Animals : an open access journal from MDPI · 2024Article
- Centurial Variation in Size at Maturity of Eastern Baltic Cod (Ecology and evolution · 2024Article
- Physiological responses of Atlantic cod to climate change indicate that coastal ecotypes may be better adapted to tolerate ocean stressors.Scientific reports · 2024Article
- Trophic lengthening triggered by filamentous, NEcology and evolution · 2024Article
- Article
- Aerobic metabolic scope mapping of an invasive fish species with global warming.Conservation physiology · 2023Article
Corrections and comments
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Authors and funding
6 authors at 3 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The Eastern Baltic cod (Gadus morhua) stock is currently in a very poor state, with low biomass and adverse trends in several life history and demographic parameters. This raises concern over whether and to what level recovery is possible. Here, we look for new insights from a historical perspective, extending the time series of various stock health indicators back to the 1940s, i.e. to the beginning of intensive exploitation of the Eastern Baltic cod. The historical data confirm that the stock deterioration in recent years is unprecedented, as all indicators are presently in their worst states on record. Cod body condition and energy reserves were equally low in the 1940s-1950s, accompanied by high parasitic liver worm infection, comparable to that measured in recent years. However, other stock parameters (size structure, size at maturity, stock distribution) are currently in their worst states over the past 80 years. In contrast, the state of cod in the 1970s to early 1990s that is often perceived as a desirable target, was exceptional, with the most favorable indicator levels in the time series. Long-term observation data reveal concurrent or asynchronous trends in different indicators of stock health and to what extent these have coincided with changes in possible external drivers. In this way, the extended time series contribute to ongoing research on understanding the collapse of the cod and its recovery potential.
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