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| Fältnamn | Indikatorer | Metadata |
|---|---|---|
| 000 | 05358naa a2200637 4500 | |
| 001 | oai:gup.ub.gu.se/159203 | |
| 003 | SwePub | |
| 008 | 240528s2012 | |||||||||||000 ||eng| | |
| 009 | oai:DiVA.org:ri-9268 | |
| 024 | 7 | a https://gup.ub.gu.se/publication/1592032 URI |
| 024 | 7 | a https://doi.org/10.3354/meps095852 DOI |
| 024 | 7 | a https://urn.kb.se/resolve?urn=urn:nbn:se:ri:diva-92682 URI |
| 040 | a (SwePub)gud (SwePub)ri | |
| 041 | a eng | |
| 042 | 9 SwePub | |
| 072 | 7 | a ref2 swepub-contenttype |
| 072 | 7 | a art2 swepub-publicationtype |
| 100 | 1 | a Baden, Susanne P.,d 1952u Gothenburg University,Göteborgs universitet,Institutionen för biologi och miljövetenskap,Department of Biological and Environmental Sciences4 aut0 (Swepub:gu)xbadsu |
| 245 | 1 0 | a Shift in seagrass food web structure over decades is linked to overfishing |
| 264 | 1 | b Inter-Research Science Center,c 2012 |
| 520 | a Empirical field studies in seagrass have revealed that overgrowth by filamentous algae which reduces seagrass growth can be explained by a top-down cascading effect caused by declines in top predators, which is enforced by eutrophication. On the Swedish west coast, 60% of the seagrass has disappeared since the 1980s. We hypothesised that overfishing, responsible for a >90% decline in the cod stock, and the 4 to 8 times increase in nutrient load since the 1930s have altered the seagrass structure and function during recent decades. We used quantitative samples from the 1980s and 2000s and analysed the trends in abundance of the 4 feeding guilds: top predatory fish, intermediate predatory fish, crustacean omnivores and mesoherbivores. Since the 1980s, the commercial catch of gadoids on the Swedish west coast has decreased by >90 %, and here we found that the biomass of top predators (gadoids and trout) that forage in seagrass has decreased by approximately 80%. In contrast, the biomass of intermediate predatory fish (gobids and sticklebacks) has increased 8 times during summer and 11 times during autumn, while mesoherbivores (idoteids and gammarids >7 mm) have more or less disappeared from the seagrass bed. We thus found clear evidence that a shift in seagrass food web structure has taken place over the last 3 decades. Combining these findings with our recent empirical results from field cage experiments in the Skagerrak seagrass, where we manipulate top-down and bottom-up regulation, we conclude that lack of grazers in concert with eutrophication most likely contributed to the overgrowth by filamentous algae and disappearance of the seagrass on the Swedish west coast. | |
| 650 | 7 | a NATURVETENSKAPx Biologix Ekologi0 (SwePub)106112 hsv//swe |
| 650 | 7 | a NATURAL SCIENCESx Biological Sciencesx Ecology0 (SwePub)106112 hsv//eng |
| 650 | 7 | a NATURVETENSKAPx Biologi0 (SwePub)1062 hsv//swe |
| 650 | 7 | a NATURAL SCIENCESx Biological Sciences0 (SwePub)1062 hsv//eng |
| 650 | 7 | a NATURVETENSKAPx Geovetenskap och miljövetenskapx Oceanografi, hydrologi och vattenresurser0 (SwePub)105092 hsv//swe |
| 650 | 7 | a NATURAL SCIENCESx Earth and Related Environmental Sciencesx Oceanography, Hydrology and Water Resources0 (SwePub)105092 hsv//eng |
| 650 | 7 | a LANTBRUKSVETENSKAPERx Lantbruksvetenskap, skogsbruk och fiskex Livsmedelsvetenskap0 (SwePub)401032 hsv//swe |
| 650 | 7 | a AGRICULTURAL SCIENCESx Agriculture, Forestry and Fisheriesx Food Science0 (SwePub)401032 hsv//eng |
| 653 | a Food web structure | |
| 653 | a Overfishing | |
| 653 | a Eutrophication | |
| 653 | a Seagrass | |
| 653 | a zostera-marina l | |
| 653 | a trophic cascades | |
| 653 | a assemblage structure | |
| 653 | a nutrient | |
| 653 | a enrichment | |
| 653 | a coastal ecosystems | |
| 653 | a eastern skagerrak | |
| 653 | a epibenthic fauna | |
| 653 | a western sweden | |
| 653 | a baltic sea | |
| 653 | a low-oxygen | |
| 653 | a Food Engineering | |
| 700 | 1 | a Emanuelsson, Andreasu RISE,Gothenburg University,Göteborgs universitet,Institutionen för biologi och miljövetenskap,Department of Biological and Environmental Sciences,SIK – Institutet för livsmedel och bioteknik4 aut |
| 700 | 1 | a Pihl, Leif,d 1951u Gothenburg University,Göteborgs universitet,Institutionen för biologi och miljövetenskap,Department of Biological and Environmental Sciences4 aut0 (Swepub:gu)xpihle |
| 700 | 1 | a Svensson, Carl Johan,d 1976u Gothenburg University,Göteborgs universitet,Institutionen för biologi och miljövetenskap,Department of Biological and Environmental Sciences4 aut0 (Swepub:gu)xsveca |
| 700 | 1 | a Åberg, Per,d 1959u Gothenburg University,Göteborgs universitet,Institutionen för biologi och miljövetenskap,Department of Biological and Environmental Sciences4 aut0 (Swepub:gu)xabepe |
| 710 | 2 | a Göteborgs universitetb Institutionen för biologi och miljövetenskap4 org |
| 773 | 0 | t Marine Ecology-Progress Seriesd : Inter-Research Science Centerg 451, s. 61-73q 451<61-73x 0171-8630x 1616-1599 |
| 856 | 4 | u https://www.int-res.com/articles/meps_oa/m451p061.pdf |
| 856 | 4 | u http://www.scopus.com/inward/record.url?eid=2-s2.0-84859735643&partnerID=40&md5=1513c2c1aca057304c48981154055c9b |
| 856 | 4 8 | u https://gup.ub.gu.se/publication/159203 |
| 856 | 4 8 | u https://doi.org/10.3354/meps09585 |
| 856 | 4 8 | u https://urn.kb.se/resolve?urn=urn:nbn:se:ri:diva-9268 |
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