Document of bibliographic reference 118683

BibliographicReference record

Type
Bibliographic resource
Type of document
Journal article
BibLvlCode
AS
Title
A long-term (1667-1860) perspective on impacts of fishing and environmental variability on fisheries for herring, eel, and whitefish in the Limfjord, Denmark
Abstract
This investigation reconstructs the development of major fisheries for herring, eel and whitefish in the Limfjord estuary, Denmark ca. 1667-1860, and then evaluates how their long-term dynamics have been influenced by some key fishery and environmental developments. The commercially most important fishery was for herring, Clupea harengus, which spawned in the Limfjord. This fishery underwent large changes in these centuries. High landings occurred in two periods in the early 18th and again in the early 19th centuries, when 4000-8000 metric tonnes were caught annually. In 1830, the fishery collapsed and landings were <1000 tonnes until the 1910s. Even during the 20th century using modern fishing techniques, the herring fishery never exceeded 7000 tonnes. The collapse was most likely due to unsustainable fishing practices (direct impacts on adults, juveniles, larvae and eggs). The second most important fishery of the Limfjord was the eel fishery. Eel, Anguilla anguilla, seems to have fled the fjord after a winter storm in 1825 broke the narrow Agger Tange isthmus which used to separate the Limfjord from the North Sea, and permanently increased the salinity in the western part of the Limfjord from 8 psu to 33 psu. The, so-called pulse seine fishery for eel declined rapidly following the salt water intrusion, and the population needed at least one to two generations to even partly recover. One possible technological reason for the recovery of the fishery was the 1848 invention of a new type of gear in the Limfjord which today is known as the Danish seine. However, the commercial eel fishery in Limfjord ceased by the 1980s coincident with the overall decline in European eel populations. The third fishery analyzed is the fishery for common whitefish, Coregonus lavaretus. A local population formed the basis of a substantial seasonal fishery, but the whitefish did not survive the salinity obstacle presented by the salt water intrusion in 1825. This study documents both the effects of fishing and environmental variability on collapses of different Limfjord fish species.
WebOfScience code
https://www.webofscience.com/wos/woscc/full-record/WOS:000251468500010
Bibliographic citation
Poulsen, B.; Holm, P.; MacKenzie, B.R. (2007). A long-term (1667-1860) perspective on impacts of fishing and environmental variability on fisheries for herring, eel, and whitefish in the Limfjord, Denmark. Fish. Res. 87(2-3): 181-195. https://dx.doi.org/10.1016/j.fishres.2007.07.014
Topic
Marine
Is peer reviewed
true

Authors

author
Name
Bo Poulsen
author
Identifier
https://orcid.org/0000-0003-3927-3308
author
Name
Brian MacKenzie
Identifier
https://orcid.org/0000-0002-4798-0363

Links

referenced creativework
type
DOI
accessURL
https://dx.doi.org/10.1016/j.fishres.2007.07.014

thesaurus terms

term
Fisheries (term code: 3215 - defined in term set: ASFA Thesaurus List)

Other terms

other terms associated with this publication
Historical ecology

taxonomic terms

taxonomic terms associated with this publication
Anguilla anguilla
Anguilla anguilla (Linnaeus, 1758)
Clupea harengus
Clupea harengus Linnaeus, 1758

Document metadata

date created
2008-01-14
date modified
2021-02-24