Jan‐Dag Pohlmann
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View article: Long-term reduction of late-stage European eel larval abundance at the continental slope reflects glass eel recruitment decline
Long-term reduction of late-stage European eel larval abundance at the continental slope reflects glass eel recruitment decline Open
Between 1971 and 1991, a series of ichthyoplankton surveys were conducted along the European continental slope to assess the abundance of late-stage European eel larvae (Anguilla anguilla). The information from these surveys provides a val…
View article: Genetically confirmed first records of an egg and a juvenile roundscale spearfish, <scp> <i>Tetrapturus georgii</i> </scp>
Genetically confirmed first records of an egg and a juvenile roundscale spearfish, <span> <i>Tetrapturus georgii</i> </span> Open
The roundscale spearfish ( Tetrapturus georgii ) is a poorly studied species with limited information available on its biology, ecology, and population status. Although the adult life stage of the species is morphologically distinguishable…
View article: Residents and Transients—Fish Community Dynamics in a Highly Anthropised Tidal North Sea Estuary Across the Annual Cycle
Residents and Transients—Fish Community Dynamics in a Highly Anthropised Tidal North Sea Estuary Across the Annual Cycle Open
Tidal estuaries provide important spawning, nursery and feeding habitats for a wide diversity of species and serve as transit areas for diadromous fishes. However, they are globally among the most impacted aquatic ecosystems, pressured by …
View article: Risks of regionalized stock assessments for widely distributed species like the panmictic European eel
Risks of regionalized stock assessments for widely distributed species like the panmictic European eel Open
In fisheries management, accurate stock assessment is pivotal to determine sustainable harvest levels or the scope of conservation measures. When assessment is decentralized and methods differ regionally, adopted approaches must be subject…
View article: To hear or not to hear: selective tidal stream transport can interfere with the detectability of migrating silver eels in a Tidal River
To hear or not to hear: selective tidal stream transport can interfere with the detectability of migrating silver eels in a Tidal River Open
Acoustic telemetry provides valuable insights into behavioural patterns of aquatic animals such as downstream migrating European eels ( Anguilla anguilla ), so called silver eels. The behaviour of silver eels during the migration is known …
View article: Temperature and pressure dependency of oxygen consumption during long-term sustained swimming of European eels
Temperature and pressure dependency of oxygen consumption during long-term sustained swimming of European eels Open
Many aspects of the typically 5000–10,000 km spawning migration of the European eel (Anguilla anguilla) remain unknown. As part of this migration, eels undertake extensive diurnal vertical migrations to depths below 1000 m, being exposed t…
View article: Overestimating management progress—modelled vs. monitored silver eel escapement in a North Sea draining river
Overestimating management progress—modelled vs. monitored silver eel escapement in a North Sea draining river Open
The success of European efforts towards the recovery of the European eel (Anguilla anguilla) population will rely on accurate assessments of local stock status for the implementation of conservation measures. Yet, direct and continuous mon…
View article: To hear or not to hear: How Selective Tidal Stream Transport Interferes with the Detectability of Migrating Silver Eels in a Tidal River
To hear or not to hear: How Selective Tidal Stream Transport Interferes with the Detectability of Migrating Silver Eels in a Tidal River Open
Acoustic telemetry provides valuable insights into behavioural patterns of aquatic animals such as downstream migrating European eels ( Anguilla anguilla ). The behaviour of silver eels during the migration is known to be influenced by env…
View article: Minimally Invasive Collection of Biometric Data Including Maturation Stage on European Eel Using Photography
Minimally Invasive Collection of Biometric Data Including Maturation Stage on European Eel Using Photography Open
In response to the severe decline of the European Eel Anguilla anguilla stock in recent decades, various data frameworks and research efforts toward improved management rely on the availability of site-specific biometric data. At the same …
View article: Maternal transfer of emerging brominated and chlorinated flame retardants in European eels
Maternal transfer of emerging brominated and chlorinated flame retardants in European eels Open
The European eel (Anguilla anguilla) is regarded as a critically endangered species. Scientists are in agreement that the “quality of spawners” is a vital factor for the survival of the species. This quality can be impaired by parasites, d…
View article: Non-target assessment of the maternal transfer of non-polar toxic organic compounds in European eels by GCxGC-TOF and GC-FTICR-MS
Non-target assessment of the maternal transfer of non-polar toxic organic compounds in European eels by GCxGC-TOF and GC-FTICR-MS Open
Chemical pollution is hypothesized as one of the factors driving the strong decline of the critically endangered European eel population. Specifically the impact of contaminants on the quality of spawning eels and subsequent embryo surviva…
View article: Maternal transfer of emerging brominated and chlorinated flame retardants in European eels
Maternal transfer of emerging brominated and chlorinated flame retardants in European eels Open
The European eel (Anguilla anguilla) is regarded as a critically endangered species. Scientists are in agreement that the “quality of spawners” is a vital factor for the survival of the species. This quality can be impaired by parasites, d…
View article: Non-target assessment of the maternal transfer of non-polar toxic organic compounds in European eels by GCxGC-TOF and GC-FTICR-MS
Non-target assessment of the maternal transfer of non-polar toxic organic compounds in European eels by GCxGC-TOF and GC-FTICR-MS Open
Chemical pollution is hypothesized as one of the factors driving the strong decline of the critically endangered European eel population. Specifically the impact of contaminants on the quality of spawning eels and subsequent embryo surviva…
View article: Heavy metal contamination in European conger (Conger conger, Linnaeus 1758) along the coastline of Morocco
Heavy metal contamination in European conger (Conger conger, Linnaeus 1758) along the coastline of Morocco Open
Background In Morocco, fish is an important protein source especially, even not exclusively, for coastal communities and marketed fresh all along the coastline. One of the main targets of coastal artisanal fisheries is the European conger …
View article: Distribution and diel vertical migration of mesopelagic fishes in the Southern Sargasso Sea — observations through hydroacoustics and stratified catches
Distribution and diel vertical migration of mesopelagic fishes in the Southern Sargasso Sea — observations through hydroacoustics and stratified catches Open
Vertical distribution patterns and relative abundance of mesopelagic fish species and other major taxonomic groups were investigated through vertically stratified trawl sampling and hydroacoustic analyses along the subtropical convergence …
View article: Bone resorption and body reorganization during maturation induce maternal transfer of toxic metals in anguillid eels
Bone resorption and body reorganization during maturation induce maternal transfer of toxic metals in anguillid eels Open
Significance Body reorganization in eels during gametogenesis can induce undesired side effects with possible pathological significance. This study provides analytical evidence for the maternal transfer of toxic metals from soft and hard t…
View article: Spawning by the European eel across 2000 km of the Sargasso Sea
Spawning by the European eel across 2000 km of the Sargasso Sea Open
It has been known for about a century that European eels have a unique life history that includes offshore spawning in the Sargasso Sea about 5000–7000 km away from their juvenile and adult habitats in Europe and northern Africa. Recently …
View article: Background, sampling methods, and supplementary figures from Spawning by the European eel across 2000 km of the Sargasso Sea
Background, sampling methods, and supplementary figures from Spawning by the European eel across 2000 km of the Sargasso Sea Open
It has been known for about a century that European eels have a unique life history that includes offshore spawning in the Sargasso Sea about 5000–7000 km away from their juvenile and adult habitats in Europe and Northern Africa. Recently …
View article: Minimum landing size in European eel fisheries management: limitations of simplistic management approaches in a semelparous species
Minimum landing size in European eel fisheries management: limitations of simplistic management approaches in a semelparous species Open
In light of the critical stock situation of the European eel a careful evaluation of management regulations is crucial. The use of minimum landing size (MLS) is a commonly adapted management measure, though it is questionable whether it ca…