Swedish Agency for Marine and Water Management

Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
The Viviparous Blenny as an Indicator of Effects of Toxic Substances
Perfomers of environmental monitoring, Government Agencies, National Board of Fisheries.
Perfomers of environmental monitoring, Government Agencies, National Board of Fisheries.
Perfomers of environmental monitoring, Government Agencies, Swedish Museum of Natural History, NRM.
Responsible organisation
1993 (English)Report (Other academic)
Abstract [sv]

This is the final report from the project ”Viviparous blenny as an indicator of effects of toxic substances” designed to develop a system of environmental monitoring where the viviparous blenny, or eel-pout, (Zoarcesviviparus L.) is used as indicator species for occurrence of toxic substances in the sea and for ecological effects of such substances. The system should be possible to use both within programmes concerning monitoring of emissions and receiving waters as well as in long-term monitoring of reference areas. Several single species systems have been developed in order to enable laboratory measurements of biological effects of toxic substances. Reactions observed are, however, frequently difficult to transfer to ecologically relevant disorders in nature. A single species system for programmes concerning control of emissions and receiving waters should include not only measurement of effects on the individual level in the laboratory and the field, but also monitoring of population variations as well as, if the relevant substances are persistent and bioaccumulating, chemical analyses. If the species chosen is a fish, it should have the following properties:

♦ 1. A stationary mode of living throughout its entire life cycle. This is essential for linking observations to pollution in the controlled area.

♦ 2. Sufficiently large in size to provide samples large enough for individual chemical and physiological analyses.

♦ 3. Easy to catch, also as fry.

♦ 4. Rich abundance, preferably within a large area of dispersion.

♦ 5. Long life, which makes it possible to integrate effects through time and to investigate the importance of long-term exposure.

♦ 6. The possibility of determining age is required for analysis of dose/effect and for studies of the population’s age distribution, which may indicate disorders in reproduction or increased mortality.

♦ 7. Suitability for monitoring of emissions, which implies that it should be possible to register ecologically important effects of emission not only under controlled laboratory conditions but also in the field.

Jacobsson et al. (1986) demonstrated that the viviparous blenny has the above-mentioned characteristics. The authors base this statement on earlier knowledge as regards the six first requirements and on an experiment described in their paper with regard to the seventh. Several freshwater species also have the required properties but hardly any other marine species present in Swedish waters. This implies that the coast of western Sweden lacks good alternative indicator species; the national monitoring of concentrations of harmful substances makes use of the non-stationary flounder. Also in relation to our freshwater fishes, the blenny has an important advantage: It gives birth to live fry after a long gestation period (4—6 months). In this way, a general problem is eliminated in studies of reproduction parameters in fish, namely the difficulty to identify brood origin and measure reproduction success among individuals.

Place, publisher, year, edition, pages
Öregrund: Kustlaboratoriet, Fiskeriverket , 1993. , p. 29
Series
Fiskeriverket Kustrapport 1992-1999, ISSN 1102-5670 ; 1993:6
Keywords [en]
viviparous blenny, toxic, environmental monitoring, eel-pout, emissions, migration, reproduction, fecundity, mortality
Keywords [sv]
tånglake, giftig, miljöövervakning, ål-pout, utsläpp, reproduktion, fruktsamhet, dödlighet
National Category
Environmental Sciences
Research subject
Finance, National; Environmental Objectives, A Rich Diversity of Plant and Animal Life
Identifiers
URN: urn:nbn:se:havochvatten:diva-304OAI: oai:DiVA.org:havochvatten-304DiVA, id: diva2:1456080
Available from: 2020-07-31 Created: 2020-07-31 Last updated: 2020-12-01

Open Access in DiVA

fulltext(7540 kB)51 downloads
File information
File name FULLTEXT01.pdfFile size 7540 kBChecksum SHA-512
b5d928464ac9bd57ffadfc2d6967c0e1684d6323b478b19516fe90cb8ca4cc191fb1a77886234f315d9008b8c15aa8a79a97e03163eb6a5e5ff0ec8756313fbd
Type fulltextMimetype application/pdf

By organisation
National Board of FisheriesSwedish Museum of Natural History, NRM
Environmental Sciences

Search outside of DiVA

GoogleGoogle Scholar
Total: 51 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

urn-nbn

Altmetric score

urn-nbn
Total: 194 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf