Document Detail


Trophic structure and community stability in an overfished ecosystem.
MedLine Citation:
PMID:  20647468     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Since the collapse of the pelagic fisheries off southwest Africa in the late 1960s, jellyfish biomass has increased and the structure of the Benguelan fish community has shifted, making the bearded goby (Sufflogobius bibarbatus) the new predominant prey species. Despite increased predation pressure and a harsh environment, the gobies are thriving. Here we show that physiological adaptations and antipredator and foraging behaviors underpin the success of these fish. In particular, body-tissue isotope signatures reveal that gobies consume jellyfish and sulphidic diatomaceous mud, transferring "dead-end" resources back into the food chain.
Authors:
Anne C Utne-Palm; Anne G V Salvanes; Bronwen Currie; Stein Kaartvedt; Göran E Nilsson; Victoria A Braithwaite; Jonathan A W Stecyk; Matthias Hundt; Megan van der Bank; Bradley Flynn; Guro K Sandvik; Thor A Klevjer; Andrew K Sweetman; Volker Brüchert; Karin Pittman; Kathleen R Peard; Ida G Lunde; Rønnaug A U Strandabø; Mark J Gibbons
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Science (New York, N.Y.)     Volume:  329     ISSN:  1095-9203     ISO Abbreviation:  Science     Publication Date:  2010 Jul 
Date Detail:
Created Date:  2010-07-21     Completed Date:  2010-08-05     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0404511     Medline TA:  Science     Country:  United States    
Other Details:
Languages:  eng     Pagination:  333-6     Citation Subset:  IM    
Affiliation:
Department of Biology, University of Bergen, Bergen, Norway. anne.palm@bio.uib.no
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MeSH Terms
Descriptor/Qualifier:
Adaptation, Physiological*
Anaerobiosis
Animals
Bacteria
Behavior, Animal
Biomass
Cardiovascular Physiological Phenomena
Digestion
Ecosystem*
Feeding Behavior
Fisheries
Fishes / physiology
Food Chain*
Geologic Sediments / microbiology
Hydrogen Sulfide / analysis
Namibia
Oxygen / analysis
Oxygen Consumption
Perciformes / physiology*
Population Dynamics
Predatory Behavior
Scyphozoa*
Seawater / chemistry
Chemical
Reg. No./Substance:
7782-44-7/Oxygen; 7783-06-4/Hydrogen Sulfide
Comments/Corrections
Comment In:
Science. 2010 Jul 16;329(5989):268   [PMID:  20647437 ]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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