Do fish and blue-green algae blooms coexist in space and time?

Godlewska, M.; Izydorczyk, Katarzyna; Kaczkowski, Z.; Jóźwik, A.; Długoszewski, Bronisław; Ye, Shaowen; Lian, Yuxi; Guillard, Jean

doi:10.1016/j.fishres.2015.06.018

Cited by 13 publications

(9 citation statements)

References 38 publications

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“…Hydroacoustics has been standardised in Europe (CEN, 2009) and in North America (Parker-Stetter et al, 2009). Compared to other fishery-independent methods, such as gillnetting and trawling, its main advantage is non-intrusive sampling of fish populations (Simmonds and MacLennan, 2005) and the capability of stock estimation at large scales in natural lakes (Wheeland and Rose, 2014;Morrissey-McCaffrey et al, 2018), and in reservoirs (Godlewska et al, 2016;Guo et al, 2019;Tessier et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Comparisons of day-time and night-time hydroacoustic surveys in temperate lakes

Girard

Goulon

Prigent‐Tessier

et al. 2020

Aquat. Living Resour.

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In recent years, due to an increased need for non-intrusive sampling techniques, hydroacoustics has attracted attention in fishery science and management. Efforts to promote standardisation are increasing the accuracy, efficiency, and comparability of this method. The European Water Framework Directive and the Standard Operating Procedures for Fisheries Hydroacoustic Surveys in North American Great Lakes has recommended that surveys be conducted at night. At night, fish usually disperse in the water column, thus allowing for single echo detection and subsequent accurate fish size estimation, while day-time schooling behaviour hampers the estimation of fish size. However, sampling during the day would often be safer and cheaper. This study analyses how fisheries hydroacoustic results differ between day-time and night-time surveys, using data from 14 natural temperate lakes of various size. Data collected during the day and night at two depth layers linked to thermal stratification were compared in terms of acoustic scattering strength, target strength, and biomass estimates. The results showed a significant correlation between day-time and night-time estimates, though biomass in the upper layer was biased for day-time surveys, mainly due to incorrect fish size estimates resulting from rare single echo detections and schooling behaviour. Biomass estimates for the lower depth layer did not significantly differ between the two diel periods. Thus, this study confirms that hydroacoustic sampling in temperate lakes should be performed at night for accurate fish stock biomass estimates.

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Section: Introductionmentioning

confidence: 99%

Comparisons of day-time and night-time hydroacoustic surveys in temperate lakes

Girard

Goulon

Prigent‐Tessier

et al. 2020

Aquat. Living Resour.

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“…Considering these factors, the reason for the recently reversed trend in bream/roach biomass is unknown, but one potential explanation could be the decrease in the zebra mussel population, a recent phenomenon in Polish lakes due to environmental changes (Stańczykowska et al 2010). Improved water quality and lower primary productivity (Godlewska et al 2015, Piniewski et al 2015 may no longer be able to support large populations of filter feeders such as D. polymorpha, resulting in a declining roach population, a major mussel consumer in the reservoir. Further research is needed to confirm this hypothesis.…”

Section: Discussionmentioning

confidence: 99%

Long-term changes in the fish community structure revealed by gillnet monitoring in a shallow, lowland reservoir

Kaczkowski¹,

Frankiewicz²

2017

Acta Ichthyol. Piscat.

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Kaczkowski Z., Frankiewicz P. 2017. Long-term changes in the fish community structure revealed by gillnet monitoring in a shallow, lowland reservoir. Acta Ichthyol. Piscat. 47 (3): 279-288.Background. Fish communities can support or hinder water quality management. Sulejów Reservoir, which is situated on the Pilica River in Central Poland, serves as a strategic reserve of drinking water for the Łódź Agglomeration. Precise knowledge of the long-term dynamics of the structure of the fish community, what was the aim of this study, is important for proper management to slow the eutrophication of the reservoir and prevent toxic algal blooms. Materials and methods.To determine fish species composition, multimesh gill nets with mesh sizes ranging from 11 to 80 mm were used. From 1993 to 2015, gillnetting was conducted 1-2 times per month from June through November in two representative parts of the reservoir, and principal component analysis (PCA) was applied to explore the temporal variation in fish community structure expressed as the relative contribution of each species to the total fish biomass.Results. Dominance fluctuated among four species in the fish community: common bream, Abramis brama (Linnaeus, 1758); roach, Rutilus rutilus (Linnaeus, 1758); white bream, Blicca bjoerkna (Linnaeus, 1758); and pike-perch, Sander lucioperca (Linnaeus, 1758). PCA revealed three principal components with eigenvalues larger than one that explained 73.3% of the observed variance in the temporal changes in fish community composition. A negative correlation was found between pike-perch biomass and roach biomass (r = 0.82), while a positive correlation was observed between the biomass of pike-perch and that of common bream (r = 0.73). Consequently, there was a highly negative correlation between the biomasses of common bream and roach (r = 0.80). Furthermore, an interesting temporal pattern was observed; from 1993 to 2000, the fish community was dominated by common bream and pike-perch but then shifted towards domination by roach and white bream, despite declining phosphorous and carbon concentrations. Recently, this trend has been reversed, and a more balanced fish community structure has been established. Conclusion. Fish community succession, which is usually reported to be a one-directional process in reservoirs, i.e., from a riverine fish or percid-dominated to a cyprinid (bream)-dominated state, was more ambiguous in Sulejów Reservoir. This was likely a consequence of both restoration issues related to decreasing nutrient loads and the influence of zebra mussel, Dreissena polymorpha invasion on the trophic relations in the reservoir.

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“…Fish distribution in natural ecosystems during toxic cyanobacterial blooms has been studied in the last decade (Ernst et al , 2007; Sotton et al , 2011). The response of fish to toxic cyanobacteria may vary depending on fish and blue-green algae species, as well as the level of toxicity (Baganz et al , 2004; Ernst et al ., 2007; Godlewska et al ., 2015). Changes in the behaviour of fish in response to contact with toxic blue-green algae are probably complex and may depend both on the fish species and cyanobacteria species composition, as well as the intensity of blooms and their toxicity (Baganz et al ., 2004; Ernst et al ., 2007).…”

Section: Discussionmentioning

confidence: 99%

“…Changes in the dominant fish species were observed due to the bloom intensity in the study area. Fish were less abundant in the area of the bloom, although not totally absent, when a low cyanobacteria biomass was detected, the fish biomass was unpredictable and could have either very small or very high values (Godlewska et al , 2015).…”

Section: Discussionmentioning

confidence: 99%

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The effect of algal blooms on fish in their inshore nursery grounds in the Gulf of Gdańsk

2017

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Studies of cyanobacterial bloom dynamics show that the highest biomass accumulation of Nodularia spumigena is observed in the shallowest area of the Gulf of Gdańsk in summer. In the same region and time, the highest fish abundance is observed. Mostly young individuals of gobies, small sandeel, flounder, three-spine stickleback and young herring occur. In this work we compare how toxic blooms of cyanobacteria influence the number and structure of fish communities in a coastal zone. The results obtained in our study were rather unexpected. More fish species were caught and the biomass of fish was higher during a bloom than in a month following the sampling (no bloom).

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Do fish and blue-green algae blooms coexist in space and time?

Cited by 13 publications

References 38 publications

Comparisons of day-time and night-time hydroacoustic surveys in temperate lakes

Comparisons of day-time and night-time hydroacoustic surveys in temperate lakes

Long-term changes in the fish community structure revealed by gillnet monitoring in a shallow, lowland reservoir

The effect of algal blooms on fish in their inshore nursery grounds in the Gulf of Gdańsk

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