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

Abstract

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.

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

“…Water quality promotes appropriate ecosystem functioning and supports the generation of ecosystem services which is determined by both biotic and abiotic measures (Foley et al 2015;Pouso et al 2018) and therefore can be characterized by using the concentration ranges of nitrate, chloride, and dissolved oxygen, among other characteristics (Bhateria and Jain 2016;Duque et al 2022). Increased concentrations of productive nutrients like nitrate have been previously linked to anthropogenic practices (Smith 2003;Alonso 2006 andWilkerson andDugdale 2016), such as urban settlements, excess nutrient flow from municipal and agricultural waste which has added pressure on freshwater ecosystem contributing to its deterioration.…”

“…Increased concentrations of productive nutrients like nitrate have been previously linked to anthropogenic practices (Smith 2003;Alonso 2006 andWilkerson andDugdale 2016), such as urban settlements, excess nutrient flow from municipal and agricultural waste which has added pressure on freshwater ecosystem contributing to its deterioration. Previously, researchers have reported that aquatic systems enriched with nutrients discharged from anthropogenic wastes have influenced the presence and abundance of macroinvertebrate species by subjecting them to low levels of dissolved oxygen and physiological stress (Kenworthy et al 2016;Hale et al 2018;Nelson et al 2019;Ren et al 2019;Duque et al 2022). A low abundance of species was evident in waters with high nitrate, chloride, total dissolved solids and turbidity.…”

Variación de la captura por unidad de esfuerzo (CPUE) de la pesca artesanal y su sustentabilidad en relación con las variables ambientales en el Pacífico colombiano

“…Estas correlaciones entre la abundancia de recursos pesqueros con las variables sicoquímicas del agua han sido ampliamente estudiadas (Duque et al, 2020;Egertson & Downing, 2011;Gamboa-García et al, 2018a;. Las variables de salinidad, sólidos totales disueltos y transparencia presentaron una correlación negativa con la CPUE total en el trasmallo, lo cual concuerda parcialmente con algunos estudios en el Paci co colombiano en donde se observó que los sólidos totales disueltos están relacionados negativamente con la abundancia y riqueza de los recursos pesqueros; sin embargo, al aumentar la salinidad también incrementó el ensamblaje de macroinvertebrados (Duque et al, 2021).…”

“…Desde el punto de vista ecosistémico, el ambiente, la comunidad de organismos y su interacción pueden afectar los rendimientos pesqueros (Defeo, 2015). Por ejemplo, las variables sicoquímicas y de calidad del agua [como nitritos, nitratos, sólidos disueltos totales, pH, oxígeno disuelto y temperatura] pueden afectar la biomasa e intervenir en el conjunto de peces capturados, lo que varía de acuerdo con la zona y la época climática (Duque et al, 2020(Duque et al, , 2021, y, de manera indirecta, puede in uir sobre los porcentajes de captura y sobre la biomasa de interés comercial.…”

Aquatic invertebrates and their correlation with the basic abiotic factors in the coastal water of Can Gio, Southern Vietnam

“…Each organism within an ecosystem plays a role in indicating the health of its surrounding environment [4]. The endpoints or biological characteristics zooplankton and benthic macroinvertebrates can be used for water quality assessment such as species number, abundance, biomass, bioindicator, bio-indices [2,5,6]. Razak et al (2019) assessed the water system quality in Malaysia based on the zooplankton structural features [7].…”