Spring-time nektonic invertebrate assemblages of and adjacent to the Yangtze Estuary

Ren, Qing‐qiang; Xian, Weiwei; Liu, Chunlong; Li, Wenlong

doi:10.1016/j.ecss.2019.106338

Cited by 6 publications

(2 citation statements)

References 20 publications

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“…Accordingly, some studies have reported that an increase in macroinvertebrate biomass could be an indicator of low water quality within estuaries (Currie et al, 2011 ; Elliott & Quintino, 2007 ; Jiang et al, 2014 ; Villnäs et al, 2019 ). Conversely, other researchers have reported a decrease in macroinvertebrate biomass in low‐water‐quality habitats, particularly hypoxic habitats (Ren et al, 2019 ). These observations highlight the complexity of using macroinvertebrate biomass as an indicator of water quality and that biomass may depend on the most relevant natural and anthropogenic stressors within each ecosystem at a regional scale (I. Martins et al, 2019 ).…”

Section: Discussionmentioning

confidence: 85%

Influence of water quality on the macroinvertebrate community in a tropical estuary (Buenaventura Bay)

Duque

Gamboa-García

Molina

et al. 2021

Integr Envir Assess & Manag

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The anthropogenic discharges of inorganic nutrients impact water quality, affecting the macroinvertebrate assemblage and food safety. The main objective of this study was to examine the seawater quality and macroinvertebrate dynamics in muddy habitats of Buenaventura Bay, Colombian Pacific. Macroinvertebrates were captured using artisanal trawl nets during different seasons and along four sampling sites. Multivariate analyses (canonical correspondence analysis and generalized additive model) were used to assess the effects of variations in nitrite, nitrates, phosphate concentrations, and physicochemical variables (salinity, pH, dissolved oxygen [DO], temperature, and total dissolved solids [TDS]) of water on the macroinvertebrate assemblage. Richness was the highest at sites with high salinity and temperature and low concentrations of nitrites and TDS. The densities of the commercial shrimp species Xiphopenaeus riveti and Rimapenaeus byrdi were the highest at sites with higher DO and alkalinity, and lower nitrate concentrations. The swimming crab Callinectes arcuatus was dominant at sites with low water quality. In summary, in the transitional season and at the inner sites of Buenaventura Bay, it was observed the lowest water quality due to high nitrate concentration. High nitrate concentration was highlighted as the main anthropogenic factor that could decrease the capture of target macroinvertebrate species for food and livelihoods of artisanal fishermen and their families. Thus, macroinvertebrate communities may be vulnerable to increased inorganic nutrient inputs, which could affect estuarine water quality and ecosystems services.

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Section: Discussionmentioning

confidence: 85%

Influence of water quality on the macroinvertebrate community in a tropical estuary (Buenaventura Bay)

Duque

Gamboa-García

Molina

et al. 2021

Integr Envir Assess & Manag

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“…In 2004 and 2007, depth, salinity, and total suspended matter together drove variation in the spatial structure of spring fish assemblages in the Yangtze Estuary, dividing fish into southern and northern assemblages [1]. The invertebrate assemblage in the Yangtze Estuary was also divided into shallow assemblage and deep assemblage according to depth [61]. In addition to depth, the spatial variation in fish assemblages in the Yangtze Estuary is also driven by other environmental factors at different times.…”

Section: Spatial Characteristics Of the Fish Assemblagesmentioning

confidence: 99%

Spatial and Temporal Variations in Autumn Fish Assemblages in the Offshore Waters of the Yangtze Estuary

2023

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The offshore waters of the Yangtze Estuary are an important fish habitat, and the large gradient of environmental conditions leads to different fish assemblages. We studied the spatial and temporal variations in fish assemblages and their relationships with environmental factors in the offshore waters of the Yangtze Estuary during the autumns of 2012–2016. The fish assemblage consisted of 64 fish species from 39 families, of which 6 species were dominant. There were significant interannual differences in fish abundance, biomass, and species composition, with the highest abundance and biomass in 2013, the lowest abundance in 2016, and the lowest biomass in 2015. Redundancy analysis revealed that total suspended particles and dissolved oxygen drove interannual variation in fish abundance, biomass, and species composition, and depth drove spatial variation in the fish assemblage. According to the depth, the fish were classified as shallow assemblage and deep assemblage. Understanding the spatial and temporal patterns of fish assemblage in the offshore waters of the Yangtze Estuary is beneficial to the conservation of fish and the sustainable use of fishery resources in the offshore waters of the Yangtze Estuary.

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Assessment of water quality and its effect on prawn abundance in three tributaries of Shiwalik rivers: Chenab and Ravi of Jammu, India—a case study

2023

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The freshwater rivers from Shiwalik Himalayas have abundant prawn resources of high economic value and play a major role in the livelihood of local fishermen. The present study aimed to determine the variation in prawn abundance explained by changes in water quality among three different streams (Gho Manhasa stream, Chadwal stream and Nagri stream). The highest abundance of prawns was found in the Gho Manhasa during the premonsoon season and lowest in the Chadwal stream during the monsoon season. Chadwal stream witnessed maximum anthropogenic activities resulting in the decline of the water quality affecting prawn fauna. Cluster analysis based on similarity in terms of prawn abundance revealed that the Chadwal stream is different from the other two streams whereas non-metric multidimensional scaling plot based on species abundance corresponding to different seasons and physiochemical parameters showed the water quality of the monsoon season of the Chadwal stream to be extremely different. Principal component analysis showed clear separation across various sites and seasons based on physicochemical parameters. Karl Pearson correlation coefficient and canonical correspondence analysis indicated that the turbidity, total dissolved solids, nitrate, chloride, calcium, magnesium and dissolved oxygen are significant parameters influencing the abundance of prawns. The population of Macrobrachiumdayanum and Macrobrachiumkistnense was very less in the Chadwal stream owing to unfavorable physicochemical parameters. Therefore, conservation measures are suggested which should be immediately implemented before the streams witness a further decline in their populations.

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Spring-time nektonic invertebrate assemblages of and adjacent to the Yangtze Estuary

Cited by 6 publications

References 20 publications

Influence of water quality on the macroinvertebrate community in a tropical estuary (Buenaventura Bay)

Influence of water quality on the macroinvertebrate community in a tropical estuary (Buenaventura Bay)

Spatial and Temporal Variations in Autumn Fish Assemblages in the Offshore Waters of the Yangtze Estuary

Assessment of water quality and its effect on prawn abundance in three tributaries of Shiwalik rivers: Chenab and Ravi of Jammu, India—a case study

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