Intraspecific diet shifts of the sesarmid crab, Sesarma dehaani, in three wetlands in the Han River estuary, South Korea
1
조회
0
다운로드
1
인용
0
참고문헌
키워드
초록
Background: Han River estuary is a national wetland reserve near the Demilitarized Zone (DMZ) between South Korea and North Korea. This trans-boundary estuary area has been well preserved and shows distinctive plant communities along the salinity gradient. To elucidate energy flows and nutrient cycling in this area, we studied trophic relations between the dominant sesarmid crab, Sesarma dehaani, and food sources in three wetlands with different environments along the estuarine gradients. Results: Stable isotope signatures (δ13C and δ15N) of the crabs were significantly different among the sites and body size classes. Seasonal changes in δ13C of small crabs were distinct from those of large individuals at all the sites. The isotopic values and fatty acid profiles of the crabs were more different among the sites in September than in May. In May, large-sized crabs utilized more plant materials compared to other dietary sources in contrast to small-sized crabs as revealed by a stable isotope mixing modeling, whereas contributions to diets of crabs were not dominated by a specific diet for different body size in September except at site 1. Based on PCA loadings, fatty acid content of 18:3ω3, known as a biomarker of plant materials, was the main factor to separate size groups of crabs in May and September. The δ13C value of sediment had high correlation with those of small-sized crabs at site 1 and 2 when 1-month time lag was applied to the value for crabs during the surveyed period. Conclusions: Based on the stable isotope and fatty acid results, the consumption habits of S. dehaani appear to be distinguished by sites and their size. In particular, smaller size of S. dehaani appears to be more dependent on fewer food sources and is influenced more by the diet sources from the sediments in Han River estuary.
Abstract
Background: Han River estuary is a national wetland reserve near the Demilitarized Zone (DMZ) between South Korea and North Korea. This trans-boundary estuary area has been well preserved and shows distinctive plant communities along the salinity gradient. To elucidate energy flows and nutrient cycling in this area, we studied trophic relations between the dominant sesarmid crab, Sesarma dehaani, and food sources in three wetlands with different environments along the estuarine gradients. Results: Stable isotope signatures (δ13C and δ15N) of the crabs were significantly different among the sites and body size classes. Seasonal changes in δ13C of small crabs were distinct from those of large individuals at all the sites. The isotopic values and fatty acid profiles of the crabs were more different among the sites in September than in May. In May, large-sized crabs utilized more plant materials compared to other dietary sources in contrast to small-sized crabs as revealed by a stable isotope mixing modeling, whereas contributions to diets of crabs were not dominated by a specific diet for different body size in September except at site 1. Based on PCA loadings, fatty acid content of 18:3ω3, known as a biomarker of plant materials, was the main factor to separate size groups of crabs in May and September. The δ13C value of sediment had high correlation with those of small-sized crabs at site 1 and 2 when 1-month time lag was applied to the value for crabs during the surveyed period. Conclusions: Based on the stable isotope and fatty acid results, the consumption habits of S. dehaani appear to be distinguished by sites and their size. In particular, smaller size of S. dehaani appears to be more dependent on fewer food sources and is influenced more by the diet sources from the sediments in Han River estuary.
참고문헌 (44)
- Antonio ES, "Spatial-temporal feeding dynamics of benthic communities in an estuary-marine gradient", Estuar Coast Shelf Sci, 112, pp.86~97 (2012)
- 백경오, "수중보 이설 및 변형에 따른 한강 하구 흐름 특성", 대한토목학회 논문집B, 31(2), pp.109~119 (2011), 대한토목학회
- Bergamino L, "Spatial and temporal changes in estuarine food web structure : differential contributions of marsh grass detritus", Estuar Coasts, 38, pp.367~382 (2015)
- Bouillon S, "Sources of organic carbon in mangrove sediments : variability and possible ecological implications", Hydrobiologia, 495, pp.33~39 (2003)
- Bouillon S, "Resource utilization patterns of epifauna from mangrove forests with contrasting inputs of local versus imported organic matter", Mar Ecol Prog Ser, 278, pp.77~88 (2004)
- Buck TL, "Diet choice in an omnivorous salt-marsh crab : different food types, body size, and habitat complexity", J Exp Mar Biol Ecol, 292, pp.103~116 (2003)
- Careddu G, "Effects of terrestrial input on macrobenthic food webs of coastal sea are detected by stable isotope analysis in Gaeta Gulf", Estuar Coast Shelf Sci, 154, pp.158~168 (2015)
- Cherel Y, "Using stable-isotope analysis of feathers to distinguish moulting and breeding origins of seabirds", Oecologia, 122, pp.155~162 (2000)
- Choy EJ, "Pathways of organic matter through food webs of diverse habitats in the regulated Nakdong River estuary(Korea)", Estuar Coast Shelf Sci, 78, pp.215~226 (2008)
- Claudino MC, "Trophic connectivity and basal food sources sustaining tropical aquatic consumers along a mangrove to ocean gradient", Estuar Coast Shelf Sci, 167, pp.45~55 (2015)
- Dalsgaard J, "Fatty acid trophic markers in the pelagic marine environment", Adv Mar Biol, 46, pp.225~340 (2003)
- Delaporte M, "Incorporation and modification of dietary fatty acids in gill polar lipids by two bivalve species Crassostrea gigas and Ruditapes philippinarum", Comp Biochem Physiol A Mol Integr Physiol, 140, pp.460~470 (2005)
- Dittel AI, "Carbon and nitrogen sources for juvenile blue crabs Callinectes sapidus in coastal wetlands", Mar Ecol Prog Ser, 194, pp.103~112 (2000)
- Doi H, "Spatial shifts in food sources for macrozoobenthos in an estuarine ecosystem : carbon and nitrogen stable isotope analyses", Estuar Coast Shelf Sci, 64, pp.316~322 (2005)
- Emmerson WD, "Feeding and assimilation of mangrove leaves by the crab Sesarma meinerti de Man in relation to leaf-litter production in Mgazana, a warm-temperate southern African mangrove swamp", J Exp Mar Biol Ecol, 157, pp.41~53 (1992)
- Erickson AA, "Herbivore feeding preferences as measured by leaf damage and stomatal ingestion : a mangrove crab example", J Exp Mar Biol Ecol, 289, pp.123~138 (2003)
- Grey J, "Seasonal changes in the importance of the source of organic matter to the diet of zooplankton in Loch Ness, as indicated by stable isotope analysis", Limnol Oceanogr, 46, pp.505~513 (2001)
- 한동욱, "Food web structure in a Salix subfragilis dominated wetland in Hangang estuary using stable isotopes and fatty acid biomarkers", Animal Cells and Systems, 16(2), pp.162~171 (2012), 한국통합생물학회[DOI]
- 한동욱, "한강하구 장항습지의 선버들(Salix nipponica)의 지상부 1차생산성과 말똥게(Sesarma dehaani)의 2차생산성", 생태와 환경, 43(2), pp.298~306 (2010), 한국수생태학회
- Herbon CM, "Experimental determination of stable carbon and nitrogen isotope fractionation between mangrove leaves and crabs", Mar Ecol Prog Ser, 490, pp.91~105 (2013)
- Kattner G, "Simple gas-liquid chromatographic method for the simultaneous determination of fatty acids and alcohols in wax esters of marine organisms", J Chromatogr A, 361, pp.263~268 (1986)
- Kristensen E, "Organic carbon dynamics in mangrove ecosystems : a review", Aquat Bot, 89, pp.201~219 (2008)
- Kristensen E, "Trophic discrimination of stable isotopes and potential food source partitioning by leaf-eating crabs in mangrove environments", Limnol Oceanogr, 62(5), pp.2097~2112 (2017)
- Kyomo J, "Variations in the feeding habits of males and females of the crab Sesarma intermedia", Mar Ecol Prog Ser, 83, pp.151~155 (1992)
- Lautenschlager AD, "Utilization of organic matter by invertebrates along an estuarine gradient in an intermittently open estuary", Estuar Coast Shelf Sci, 149, pp.232~243 (2014)
- Lee SY, "Ecological role of grapsid crabs in mangrove ecosystems : a review", Mar Freshw Res, 49, pp.335~343 (1998)
- Lee SY, "Carbon dynamics of Deep Bay, eastern Pearl River estuary, China. II:trophic relationship based on carbon-and nitrogen-stable isotopes", Mar Ecol Prog Ser, 205, pp.1~10 (2000)
- Lee SY, "Ecological role and services of tropical mangrove ecosystems : a reassessment", Glob Ecol Biogeogr, 23, pp.726~743 (2014)
- Matson EA, "Stable carbon isotopes and the C : N ratio in the estuaries of the Pamlico and Neuse Rivers, North Carolina", Limnol Oceanogr, 35, pp.1290~1300 (1990)
- McCutchan JH, "Variation in trophic shift for stable isotope ratios of carbon, nitrogen, and sulfur", Oikos, 102, pp.378~390 (2003)
- Mfilinge PL, "Effect of temperature on leaf litter consumption by grapsid crabs in a subtropical mangrove(Okinawa, Japan)", J Sea Res, 59, pp.94~102 (2008)
- Plan of maintenance of the Han River Estuary, "Ministry of Environment Korea", 362~ (2007)
- Nagelkerken I, "The habitat function of mangroves for terrestrial and marine fauna : a review", Aquat Bot, 89, pp.155~185 (2008)
- Pahlas JM, "Size dependent shifts in the diet of the mangrove tree crab, Aratus pisonii, as indicated by δ13C & δ15N from a mangrove ecosystem in Indian River Lagoon", Ph.D, pp.2013
- 박경수, "한강 하구역의 염분 분포 및 생태환경특성", 한국습지학회지, 6(1), pp.149~166 (2004), 한국습지학회
- Parnell AC, "Source partitioning using stable isotopes: coping with too much variation", PLoS One, 5, pp.e9672~ (2010)
- Peterson BJ, "Stable isotopes as tracers of organic matter input and transfer in benthic food webs : a review", Acta Oecol, 20, pp.479~487 (1999)
- Poon DY, "Spatial and temporal variation in diets of the crabs Metopograpsus frontalis(Grapsidae)and Perisesarma bidens(Sesarmidae) : implications for mangrove food webs", Hydrobiologia, 638, pp.29~40 (2010)
- "R: a language and environment for statistical computing, version 3. 2.2" (2014)[URL]
- Skov MW, "Paradoxical selective feeding on a low-nutrient diet: why do mangrove crabs eat leaves?", Oecologia, 131, pp.1~7 (2002)
- Thongtham N, "Leaf removal by sesarmid crabs in Bangrong mangrove forest, Phuket, Thailand; with emphasis on the feeding ecology of Neoepisesarma versicolor", Estuar Coast Shelf Sci, 80, pp.573~580 (2008)
- van den Berg RA, "Centering, scaling, and transformations : improving the biological information content of metabolomics data", BMC Genomics, 7, pp.142~ (2006)
- Vander Zanden MJ, "The relative efficiencies of benthic and pelagic trophic pathways in a subalpine lake", Can J Fish Aquat Sci, 63, pp.2608~2620 (2006)
- Werry J, "Grapsid crabs mediate link between mangrove litter production and estuarine planktonic food chains", Mar Ecol Prog Ser, 293, pp.165~176 (2005)