Abstract：
:We studied the accumulation of polychlorinated biphenyls (PCBs), 1,1,1.trichloro-2,2-bis[p-chlorophenyl]ethane (DDT) and its metabolites, and vitamins A and E in the top levels of the Baltic Sea food web. The investigation focused on the transfer of contaminants and vitamins to the ringed seal (Phoca hispida baltica) and the grey seal (Halichoerus grypus) from their main prey species. The trophic level of the seals was investigated using stable isotopes of nitrogen and the results indicated that both species of Baltic seal feed at approximately the same level. PCBs accumulated to a greater extent in the grey seal than in the ringed seal. Biomagnification factors for DDT compounds were similar for both species of Baltic seal (85-140). Differences in observed DDT levels were due to different prey selection by the two species, while differences in PCB levels indicated a species-specific metabolic system. There was a clearly greater accumulation of DDT compounds than of PCBs in both species of seal. The supply of dietary vitamin A was normally above the recommended level in all the seal populations studied. Low levels of hepatic vitamin A in the Baltic seals could therefore indicate the toxic effects of a high level of persistent organic pollutants on vitamin A dynamics, at least in the ringed seal. In the grey seals, low hepatic vitamin A levels could also be explained by lower levels of dietary vitamin A, compared to the reference grey seals, as it is not known if seals can store unlimited amounts of vitamin A. The greater uptake of vitamin E by Baltic seals, compared to seals in the reference areas, demonstrated by elevated levels of vitamin E in the blubber, could be a response to oxidative stress caused by the high contaminant load. These results further support our previous hypothesis that the toxic effects of environmental contaminants could be causing the observed divergence in vitamin levels between the Baltic seals and the reference seal populations.
journal_name
Mar Environ Resjournal_title
Marine environmental researchauthors
Routti H,Nyman M,Bäckman C,Koistinen J,Helle Edoi
10.1016/j.marenvres.2004.10.007keywords:
subject
Has Abstractpub_date
2005-09-01 00:00:00pages
267-87issue
3eissn
0141-1136issn
1879-0291pii
S0141-1136(04)00251-Xjournal_volume
60pub_type
杂志文章abstract：:Intertidal blue mussels, Mytilus edulis, experience hypoxia reoxygenation during tidal emersion and resubmersion cycles, and this is often suggested to represent a major stress for the animals, especially for their respiratory tissues, the gills. We exposed mussels to experimental short and prolonged anoxia and subseq...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2013.09.007
更新日期：2013-12-01 00:00:00
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pub_type： 杂志文章
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journal_title：Marine environmental research
pub_type： 杂志文章
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更新日期：2014-09-01 00:00:00
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journal_title：Marine environmental research
pub_type： 杂志文章
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journal_title：Marine environmental research
pub_type： 杂志文章
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更新日期：2002-09-01 00:00:00
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journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/s0141-1136(00)00264-6
更新日期：2002-04-01 00:00:00
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journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2009.06.006
更新日期：2009-10-01 00:00:00
abstract：:Silver nanoparticles (Ag-NPs) are increasingly used in a wide range of consumer products and such an extensive use raises questions about their safety and environmental toxicity. We investigated the potential toxicity of Ag-NPs in the marine ecosystem by analyzing the effects on several organisms belonging to differen...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2015.06.001
更新日期：2015-10-01 00:00:00
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journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2008.04.002
更新日期：2008-08-01 00:00:00
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journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2004.03.002
更新日期：2004-08-01 00:00:00
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journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2004.03.063
更新日期：2004-08-01 00:00:00
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journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2010.03.009
更新日期：2010-07-01 00:00:00
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journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/s0141-1136(01)00107-6
更新日期：2001-12-01 00:00:00
abstract：:The presence and the development of imposex were investigated in the common whelk (Buccinum undatum) and the red whelk (Neptunea antiqua) from the open North Sea and the Skagerrak. Imposex development was related to levels of organotins in snails and in the fine fractions (< 63 microm) of the sediments they inhabit. T...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/s0141-1136(02)00217-9
更新日期：2003-04-01 00:00:00
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journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2006.03.006
更新日期：2006-08-01 00:00:00
abstract：:Spatial and temporal increases of hypoxia in estuaries are of major environmental concern. Since mitochondria consume most of the oxygen in the cell, we examined the potential role of mitochondrial gene and protein expression in adaptation to chronic hypoxia in the grass shrimp Palaemonetes pugio. Grass shrimp were ex...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2008.02.046
更新日期：2008-07-01 00:00:00
abstract：:Presented paper describes the dumped conventional munition catalog that provides up-to-date information about potential hazardous objects lied on the seafloor. Specific aspects of particular types of marine historical ordnance were identified and analyzed, along with a way to catalog objects for their further presenta...
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pub_type： 杂志文章
doi：10.1016/j.marenvres.2020.105057
更新日期：2020-10-01 00:00:00
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journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2012.12.004
更新日期：2013-04-01 00:00:00
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journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2006.04.022
更新日期：2006-07-01 00:00:00
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pub_type： 杂志文章
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更新日期：2016-12-01 00:00:00
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pub_type： 杂志文章
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更新日期：2011-10-01 00:00:00
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journal_title：Marine environmental research
pub_type： 杂志文章
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更新日期：2014-09-01 00:00:00
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journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2004.03.077
更新日期：2004-08-01 00:00:00
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journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2009.03.003
更新日期：2009-07-01 00:00:00
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journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2010.01.005
更新日期：2010-01-01 00:00:00
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journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2020.105088
更新日期：2020-10-01 00:00:00
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journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/s0141-1136(99)00080-x
更新日期：2000-06-01 00:00:00
abstract：:Antineoplastic drugs used in chemotherapy were detected in aquatic environment: despite the very low concentrations (ng L(-1) to ug L(-1)), due to their potent mechanism of action they could have adverse effects on non-target aquatic organisms particularly under chronic exposure. Cisplatin (CDDP) is one of the most ef...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2016.05.004
更新日期：2016-08-01 00:00:00
abstract：:Microplastics are recognised as a (persistent) pollutant and are believed to be ubiquitous in the marine environment. The importance of this issue is evident from the large number of technical publications and research efforts within the past decade. However, the Arabian (Persian) Gulf region has few reported datasets...
journal_title：Marine environmental research
pub_type： 杂志文章,评审
doi：10.1016/j.marenvres.2020.104961
更新日期：2020-07-01 00:00:00
abstract：:The fin whale (Balaenoptera physalus) is the most abundant and widespread mysticete species in the Mediterranean Sea, found mostly in deep, offshore waters of the western and central portion of the region. In the Mediterranean, this species is known to feed mainly on krill, in contrast to its Atlantic counterpart, whi...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2017.03.009
更新日期：2017-06-01 00:00:00
