Nutrients, phytoplankton and harmful algal blooms in shrimp ponds: a review with special reference to the situation in the Gulf of California

Alonso-Rodrı́guez, Rosalba; Páez‐Osuna, Federico

doi:10.1016/s0044-8486(02)00509-4

Cited by 173 publications

(81 citation statements)

References 37 publications

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“…No sample of ponds was collected to analyze the composition and abundance of these organisms, being impossible to determine the main groups exported to the environment by the discharge of effluents. In culture ponds, the occurrence of phytoplankton species can be temporary or long-term (ALONSO-RODRÍGUEZ; PÁEZ-OSUNA, 2003). Nonetheless, there is no consent on the dominance of a certain group since variability depends on several factors such as light, water temperature, nutrient availability and predation by meso-zooplankton (BURFORD, 1997;ODEBRECHT, 2007;ABREU et al, 2010).…”

Section: Discussionmentioning

confidence: 99%

“…These nutrients come from fertilizers used, shrimp' excretion and unconsumed aquafeeds (CHO et al, 1994;BURFORD, 1997;JACKSON et al, 2004;HERBECK et al, 2013). The organic matter and nutrient accumulation in shrimp ponds lead to large phytoplankton blooms (ALONSO-RODRÍGUES;OSUNA, 2003), increasing the effluents pollution potential and generating anoxia conditions in the receiving water body (BURFORD;WILLIAMS, 2001;JACKSON et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

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Plankton and water quality variability in an estuary before and after the shrimp farming effluents: possible impacts and regeneration

2017

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Bauer et al.: Plankton and water quality in a shrimp farm 495Plankton and water quality variability in an estuary before and after the shrimp farming effluents: possible impacts and regenerationWater quality, chlorophyll a, phytoplankton, proto and mezo-zooplankton abundance were spatiotemporally evaluated in an estuary receiving effluents from a Pacific white shrimp Litopenaeus vannamei farm in Patos Lagoon estuary, Southern Brazil. Samples were taken before (BD) and; 1 day (1 PD) 5 days (5 PD), 10 days (10 PD), 20 days (20 PD) and 30 days (30 PD) after the effluents discharge. Some water quality parameters were affected by the effluents discharge; however, these changes were restricted to a distance of 20 m from the effluent discharge channel for a period of 5 days. The microbial community was dominated by chlorophyceae, followed by diatoms, cyanobacteria and ciliates. There was an increase in the abundance of different groups on the 1 PD sampling compared to BD. The zooplankton abundance was low in practically all sites, except for 30 PD sampling. The meso-zooplanktonic organisms were represented by copepods, mostly Acartia tonsa. Despite some effects on water quality and phytoplankton and protozooplankton abundance until 5 PD sampling, these alterations dissipated in a short period of time. We conclude that the environment quickly assimilated the effluents discharge, and the water quality parameters remained within the limits stipulated by standard guidelines. Parâmetros de qualidade da água, composição e abundância do fitoplâncton e do proto e meso-zooplâncton foram avaliadas espaço-temporalmente no estuário receptor de efluentes de uma fazenda produtora de camarão Litopenaeus vannamei na Lagoa dos Patos, Brasil. As amostras foram tomadas em sete pontos antes (BD) e; 1 dia (1 PD), 5 dias (5 PD), 10 dias (10 PD), 20 dias (20 PD) e 30 dias (30 PD) após a descarga dos efluentes. Alguns dos parâmetros de qualidade de água sofreram alterações devido ao lançamento dos efluentes, restritos a 20 m de distância do canal de descarga dos efluentes e por um período máximo de 5 dias. A comunidade microbiana sofreu variação em 1 PD comparativamente a BD. A abundância zooplanctônica foi baixa na maioria das amostras, com exceção de alguns pontos em 30 PD. Os copépodos foram o único grupo encontrado no meso-zooplâncton, na sua grande maioria a espécie Acartia tonsa. Apesar de modificações em alguns parâmetros avaliados nos primeiros dias após o lançamento dos efluentes, essas alterações foram assimiladas em um curto período. Os parâmetros de qualidade de água mantiveram-se dentro dos limites estipulados pela legislação e o ambiente assimilou de maneira rápida as mudanças ocorridas. AbstrAct

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Plankton and water quality variability in an estuary before and after the shrimp farming effluents: possible impacts and regeneration

2017

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“…Berdasarkan hasil penelitian ini, kecerahan perairan berkorelasi positif terhadap kandungan nitrat di perairan. Selain daripada itu, Menurut AlonsoRodrıguez dan Paez-Osuna (2003), nutrien yang tinggi, secara tidak langsung, akan mengubah komposisi jenis dari fitoplankton, termasuk merubah spesies dominan seperti diatom menjadi dinoflagellata. Hal ini yang mengindikasikan sehingga kelimpahan dinoflagellata tinggi pada rasio >16:1.…”

Section: Pembahasanunclassified

Spatial Distribution of Planktonic Dinoflagellate in Makassar Waters, South Sulawesi

Mujib

Damar

Wardiatno

2016

J. Ilmu dan Teknologi Kelautan Tropis

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The objectives of this study were to determine the harmful species of dinoflagellates, to determine the concentration of nutriens in surface waters, and to analyze factors affecting the ecological aspects of the harmful dinoflagellates. The results showed that there were 7 genus of dinoflagellates found in this study i.e., Ceratium spp., Gymnodinium sp., Dinophysis sp., Gonyaulax sp., Noctiluca sp., Protoperi-dinium spp., and Peridinium sp. Protoperidinium spp. and Ceratium spp. were the predominant species, with their abundance ranged of 9-659 cells/L and 6-556 cells/L, respectively. In temporal scale, values of DO and water light penetration were not significantly different (α>0.05), while for the parameter of nutriens, salinity, and abundance were significantly different (α<0.05). Total abundance of dinoflagellates was significantly correlated with nitrate, nitrite, ammonia, phosphate, salinity, and DO. Harmful dinoflagellate species such as Dinophysis sp. (DSP), Gymnodinium spp. (NSP and PSP), Noctiluca sp. (anaerobic), and Gonyaulax sp. (anaerobic) were observed in the study area. The high concentration of ammonia (>1 mg/L) in the waters of Losari beach also indicated that the area was affected by anthropogenic activities. Minimizing nutrient inputs from the land was becoming the most priority measure to be done to avoid such effects related to dinoflagellate harmful algae bloms.Keywords: anthropogenic, dinoflagellates, harmful species, Makassar, nutrients.

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“…Primary producers take up inorganic aquaculture-derived nutrients, and consumers of higher trophic levels are able to directly ingest particulates (Vizzini et al 2005). High anthropogenic nutrient loads have been associated with a decrease of phytoplankton diversity and the growth of nuisance blooms (Smith et al 1999;Alonso-Rodríguez and Páez-Osuna 2003). Therefore, the monitoring of several indicators at different distances from the facilities, of both biological and environmental nature, should be undertaken and the results linked with several factors (such as production system, produced species, season, amount of food) in order to establish suitable management measures that will avoid severe impacts in the future.…”

Section: Discussionmentioning

confidence: 99%

Benthic dynamics within a land-based semi-intensive aquaculture fish farm: the importance of settlement ponds

et al. 2008

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The present work aims to assess the importance of settlement ponds (SP) in semi-intensive fish farms by studying benthic dynamics in an aquaculture fish farm, more specifically in the water reservoir (WR) and SP and also in production (P) and nonproduction (C) ponds during a 16-month period. In Portugal, a SP is only mandatory for intensive fish farms, and another objective of the present study is to assess the importance of these areas in semi-intensive fish farms. The WR was the area with highest diversity and evenness, as well as the higher number of exclusive taxa and taxa sensitive to organic enrichment. P and SP samples showed signs of higher disturbance levels, emphasized namely by the association of the opportunistic annelids Capitella spp. and Tubificidae. However, the benthic data from SP points to lower disturbance levels than P both due to an increase in the percentage of sensitive taxa observed in June and October 2004 and by the association of this latter sample with water reservoir samples as evidenced by canonical correspondence analysis. Moreover, a higher and increasing number of taxa when compared with the P area were also observed. Therefore, in semi-intensive fish farms, where effluents from P ponds are directly discharged to the lagoon, the potential environmental impacts would be more severe. In conclusion, the imposition of SP in semi-intensive fish farms should be considered, especially because most fish farms are located within relevant wetland areas.

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Nutrients, phytoplankton and harmful algal blooms in shrimp ponds: a review with special reference to the situation in the Gulf of California

Cited by 173 publications

References 37 publications

Plankton and water quality variability in an estuary before and after the shrimp farming effluents: possible impacts and regeneration

Plankton and water quality variability in an estuary before and after the shrimp farming effluents: possible impacts and regeneration

Spatial Distribution of Planktonic Dinoflagellate in Makassar Waters, South Sulawesi

Benthic dynamics within a land-based semi-intensive aquaculture fish farm: the importance of settlement ponds

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