Species composition and long-term variation of macrobenthos in intertidal zone and offshore areas of the Yellow River Delta

doi:10.17520/biods.2020164

Abstract

Abstract:

The Yellow River Delta wetlands play a major role in protecting the biodiversity and ecological function of the Bohai Sea. To understand the species diversity and spatial-temporal dynamics of macrobenthic community in this region, five surveys were carried out in intertidal zone and offshore areas in August and November 2016, May, August and November 2017, respectively. Results showed that 187 macrobenthic species were identified in surveyed areas, of which, 119 species were found in the intertidal zone and 99 in offshore areas. Obvious variation was found in the spatio-temporal distribution pattern of species composition. Compared to historical records, individuals of certain species presented a miniaturization trend in body size. The dominant species composition also has undergone an obvious change from large-sized crustacean and mollusc species toward small-sized polychaete, bivalve and crustacean species. Possible factors responsible for these changes are complex, including a decrease of water inflow and sediment transport by the Yellow River combined with human activities (overfishing and increasing exploitation) and other factors, e.g., salinity decrease and the invasion of Spartina alterniflora happened in the Yellow River Delta.

Key words: Yellow River Delta, biodiversity, wetlands, macrobenthic community, species composition

Baoquan Li, Shaoyu Jiang, Juanzhang Lü, Linlin Chen, Lang Yan, Chunyun Liu, Xiaojing Li, Bo Song, Xinzheng Li. Species composition and long-term variation of macrobenthos in intertidal zone and offshore areas of the Yellow River Delta[J]. Biodiv Sci, 2020, 28(12): 1511-1522.

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URL: https://www.biodiversity-science.net/EN/10.17520/biods.2020164

https://www.biodiversity-science.net/EN/Y2020/V28/I12/1511

Figures/Tables 8

References 45

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类群 Group	物种 Species	2016.08	2016.11	2017.05	2017.08	2017.11
多毛类 Polychaeta	丝异蚓虫 Heteromastus filiformis	0.056	0.074	0.035	-	0.066
	日本刺沙蚕 Hediste japonica	0.030	0.043	0.190	-	-
	浅古铜吻沙蚕 Glycera subaenea	-	-	-	0.021	-
甲壳动物 Crustacean	日本大眼蟹 Macrophthalmus japonicus	0.029	-	-	-	-
	秉氏泥蟹 Ilyoplax pingi	-	-	-	0.024	-
	朝鲜刺糠虾 Orientomysis koreana	-	-	-	0.048	-
软体动物 Mollusca	彩虹明樱蛤 Iridona iridescens	-	-	0.064	-	0.120
	大蜾蠃蜚 Corophium major	-	-	-	-	0.220
	光滑河蓝蛤 Potamocorbula laevis	0.250	0.039	0.081	-	-
	薄荚蛏 Siliqua pulchella	-	-	-	0.060	-
鱼类 Fish	弹涂鱼 Periophthalmus modestus	-	-	-	0.028	-
鱼类 Fish	黄鳍刺虾虎鱼 Acanthogobius flavimanus	-	-	-	0.020	-

类群 Group	物种 Species	2016.08	2016.11	2017.05	2017.08	2017.11
多毛类 Polychaeta	丝异蚓虫 Heteromastus filiformis	0.056	0.074	0.035	-	0.066
	日本刺沙蚕 Hediste japonica	0.030	0.043	0.190	-	-
	浅古铜吻沙蚕 Glycera subaenea	-	-	-	0.021	-
甲壳动物 Crustacean	日本大眼蟹 Macrophthalmus japonicus	0.029	-	-	-	-
	秉氏泥蟹 Ilyoplax pingi	-	-	-	0.024	-
	朝鲜刺糠虾 Orientomysis koreana	-	-	-	0.048	-
软体动物 Mollusca	彩虹明樱蛤 Iridona iridescens	-	-	0.064	-	0.120
	大蜾蠃蜚 Corophium major	-	-	-	-	0.220
	光滑河蓝蛤 Potamocorbula laevis	0.250	0.039	0.081	-	-
	薄荚蛏 Siliqua pulchella	-	-	-	0.060	-
鱼类 Fish	弹涂鱼 Periophthalmus modestus	-	-	-	0.028	-
鱼类 Fish	黄鳍刺虾虎鱼 Acanthogobius flavimanus	-	-	-	0.020	-

调查时间 Survey time	优势种 Dominant species	优势度 Dominant value	文献 References
1996. 4-11	文蛤 Meretrix meretrix	?	Cai & Tian, 2000
	缢蛏 Sinonovacula constricta	?
	四角蛤蜊 Mactra quadrangularis	?
	光滑河蓝蛤 Potamocorbula laevis	?
	彩虹明樱蛤 Iridona iridescens	?
	托氏?螺 Umbonium thomasi	?
	日本大眼蟹 Macrophthalmus japonicus	?
	天津厚蟹 Helice tientsinensis	?
	豆形拳蟹 Pyrhila pisum	?
	双齿围沙蚕 Perinereis aibuhitensis	?
	日本刺沙蚕 Hediste japonica	?
	齿吻沙蚕属一种 Nephtys sp.	?
2005.8	光滑河蓝蛤 Potamocorbula laevis	0.230	Liu, 2013
	四角蛤蜊 Mactra quadrangularis	0.043
	彩虹明樱蛤 Iridona iridescens	0.033
	寡节甘吻沙蚕 Glycinde gurjanovae	0.021
2008.5, 2008.8	四角蛤蜊 Mactra quadrangularis	?	Wang et al, 2010
2008.5, 2008.8	泥螺 Bullacta caurina	?	Wang et al, 2010
	双齿围沙蚕 Perinereis aibuhitensis	?
	彩虹明樱蛤 Iridona iridescens	?
	天津厚蟹 Helice tientsinensis	?
	青蛤 Cyclina sinensis	?
	豆形拳蟹 Pyrhila pisum	?
	光滑河蓝蛤 Potamocorbula laevis	?
	托氏?螺 Umbonium thomasi	?
	短文蛤 Meretrix petechialis	?
2010.5, 2010.8	光滑河蓝蛤 Potamocorbula laevis	0.332	Dong et al, 2012b
	彩虹明樱蛤 Iridona iridescens	0.064
	泥螺 Bullacta caurina	0.045
	托氏?螺 Umbonium thomasi	0.043
	短文蛤 Meretrix petechialis	0.043
	拟沼螺属一种 Assiminea sp.	0.026
	双齿围沙蚕 Perinereis aibuhitensis	0.025
	日本刺沙蚕 Hediste japonica	0.025
	四角蛤蜊 Mactra quadrangularis	0.023

调查时间 Survey time	优势种 Dominant species	优势度 Dominant value	文献 References
1996. 4-11	文蛤 Meretrix meretrix	?	Cai & Tian, 2000
	缢蛏 Sinonovacula constricta	?
	四角蛤蜊 Mactra quadrangularis	?
	光滑河蓝蛤 Potamocorbula laevis	?
	彩虹明樱蛤 Iridona iridescens	?
	托氏?螺 Umbonium thomasi	?
	日本大眼蟹 Macrophthalmus japonicus	?
	天津厚蟹 Helice tientsinensis	?
	豆形拳蟹 Pyrhila pisum	?
	双齿围沙蚕 Perinereis aibuhitensis	?
	日本刺沙蚕 Hediste japonica	?
	齿吻沙蚕属一种 Nephtys sp.	?
2005.8	光滑河蓝蛤 Potamocorbula laevis	0.230	Liu, 2013
	四角蛤蜊 Mactra quadrangularis	0.043
	彩虹明樱蛤 Iridona iridescens	0.033
	寡节甘吻沙蚕 Glycinde gurjanovae	0.021
2008.5, 2008.8	四角蛤蜊 Mactra quadrangularis	?	Wang et al, 2010
2008.5, 2008.8	泥螺 Bullacta caurina	?	Wang et al, 2010
	双齿围沙蚕 Perinereis aibuhitensis	?
	彩虹明樱蛤 Iridona iridescens	?
	天津厚蟹 Helice tientsinensis	?
	青蛤 Cyclina sinensis	?
	豆形拳蟹 Pyrhila pisum	?
	光滑河蓝蛤 Potamocorbula laevis	?
	托氏?螺 Umbonium thomasi	?
	短文蛤 Meretrix petechialis	?
2010.5, 2010.8	光滑河蓝蛤 Potamocorbula laevis	0.332	Dong et al, 2012b
	彩虹明樱蛤 Iridona iridescens	0.064
	泥螺 Bullacta caurina	0.045
	托氏?螺 Umbonium thomasi	0.043
	短文蛤 Meretrix petechialis	0.043
	拟沼螺属一种 Assiminea sp.	0.026
	双齿围沙蚕 Perinereis aibuhitensis	0.025
	日本刺沙蚕 Hediste japonica	0.025
	四角蛤蜊 Mactra quadrangularis	0.023

调查时间 Survey time	优势种 Dominant species	优势度 Dominant value	文献 References
2016. 8	光滑河蓝蛤 Potamocorbula laevis	0.250	本研究 This study
	丝异蚓虫 Heteromastus filiformis	0.056
	日本刺沙蚕 Hediste japonica	0.030
	日本大眼蟹 Macrophthalmus japonicus	0.029
2016. 11	丝异蚓虫 Heteromastus filiformis	0.074
	日本刺沙蚕 Hediste japonica	0.043
	光滑河蓝蛤 Potamocorbula laevis	0.039
2017. 5	日本刺沙蚕 Hediste japonica	0.190
	光滑河蓝蛤 Potamocorbula laevis	0.081
	彩虹明樱蛤 Iridona iridescens	0.064
2017. 8	丝异蚓虫 Heteromastus filiformis	0.035
	薄荚蛏 Siliqua pulchella	0.060
	朝鲜刺糠虾 Orientomysis koreana	0.048
	弹涂鱼 Periophthalmus modestus	0.028
	秉式泥蟹 Ilyoplax pingi	0.024
	浅古铜吻沙蚕 Glycera subaenea	0.021
2017. 11	黄鳍刺虾虎鱼 Acanthogobius flavimanus	0.020
	大蜾蠃蜚 Corophium major	0.220
	彩虹明樱蛤 Iridona iridescens	0.120
	丝异蚓虫 Heteromastus filiformis	0.066