Hatching response to temperature along a latitudinal gradient by the fairy shrimp Branchinecta lindahli (Crustacea; Branchiopoda; Anostraca) in culture conditions

Rogers, D. Christopher

doi:10.4081/jlimnol.2014.1036

Cited by 11 publications

(16 citation statements)

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“…To survive to the next generations, fairy shrimps produce resting eggs which are able to withstand extreme environmental conditions (Mertens et al, 2008), such as drought or frost (Reniers, Vanschoenwinkel, Rabet & Brendonck, 2013). In most fairy shrimps, dormancy ends only after drying and subsequent rehydration (Rogers, 2015), when the environmental factors (such as light and temperature) are simultaneously appropriate (Atashbar, Agh, Van Stappen, Mertens & Beladjal, 2014).…”

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confidence: 99%

Mass culture of fairy shrimpBranchinecta orientalis(G. O. Sars 1901) (Crustacea: Anostraca) using effluent of rainbow troutOncorhynchus mykiss(Walbaum 1792) ponds

et al. 2017

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The variable quality and high price of Artemia (Leach 1819) cyst products, used worldwide as live food, motivate aquaculturists to find an appropriate alternative, especially for fresh/brackish water organisms. In this study, Branchinecta orientalis (G. O. Sars 1901), a common fairy shrimp in north‐western Iran, was reared for 15 days using effluent from trout ponds enriched with effluent filtrate as sole feed, or co‐fed with microalgae (Scenedesmus sp.). The effluent filtrate was replaced by algae at different ratios (25% and 50%), and feeding experiments were designed at densities of 100, 200 and 400 individuals/L in 3‐L containers and at 100 individuals/L in 20‐L containers. The results indicated that, at a certain density, the final length and survival were not significantly affected by different feeding regimes (p > .05). In 3‐L containers, the highest length and survival were observed at the lowest density. B. orientalis contained the highest amounts of proteins, carbohydrates and lipids, though, when co‐fed algae, although the differences with the treatment fed solely effluent filtrate were often limited. Inclusion of algae in the diet also resulted in higher levels of a number of PUFAs. Our study proves that B. orientalis can be mass‐cultured successfully using trout effluent as culture medium without additional microalgae. Fish pond effluent is massively available as a cheap food source. Recycling aquaculture effluent for this type of live food production contributes to lowering the use of natural resources and to less discharge of nutrient loads into natural water bodies.

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confidence: 99%

Mass culture of fairy shrimpBranchinecta orientalis(G. O. Sars 1901) (Crustacea: Anostraca) using effluent of rainbow troutOncorhynchus mykiss(Walbaum 1792) ponds

et al. 2017

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“…This absence could be attributed to these systems not being sufficiently ephemeral (in fact some of the dams were semi-permanent), or perhaps they were not sampled when the active stages were present (the substrate was not sampled to determine if an egg bank was present). Large branchiopods are known for ‘bet hedging’ strategies, whereby egg banks do not necessarily hatch out on every inundation and thus could be absent from the surface water during a given sampling event, but remain in the substrate as eggs (Brendonck and De Meester 2003, Schwentner and Richter 2015, Rogers 2015a, b). Furthermore, they are known to suffer stochastic extinctions, or may not colonise successfully if the habitat is not suitable due to geochemistry, hydroperiod, natural or anthropogenic pollution, or a range of other factors (Rogers 2015).…”

Section: Discussionmentioning

confidence: 99%

“…Large branchiopods are adapted to these systems and survive drought phases as dormant eggs which can remain in the sediments of a dry wetland for many years (Wiggins et al 1980, Rogers 2015a). The dormant eggs hatch during favourable environmental conditions and only a fraction of the resting stages hatch per each inundation (Brock et al 2005, Rogers 2015a, b). This is a bet–hedging strategy aimed at ensuring long-term survival of populations (Brendonck and De Meester 2003, Schwentner and Richter 2015, Rogers 2015a, b).…”

Section: Introductionmentioning

confidence: 99%

“…The dormant eggs hatch during favourable environmental conditions and only a fraction of the resting stages hatch per each inundation (Brock et al 2005, Rogers 2015a, b). This is a bet–hedging strategy aimed at ensuring long-term survival of populations (Brendonck and De Meester 2003, Schwentner and Richter 2015, Rogers 2015a, b). Most large branchiopods are filter feeders, which indiscriminately filter particles from water (Brendonck et al 2008).…”

Section: Introductionmentioning

confidence: 99%

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Ecology and distribution of large branchiopods (Crustacea, Branchiopoda, Anostraca, Notostraca, Laevicaudata, Spinicaudata) of the Eastern Cape Karoo, South Africa

Mabidi

Bird

Perissinotto

et al. 2016

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A survey of the large branchiopod fauna of the Eastern Cape Karoo region of South Africa was undertaken to provide baseline biodiversity information in light of impending shale gas development activities in the region. Twenty-two waterbodies, including nine dams and thirteen natural depression wetlands, were sampled during November 2014 and April 2015. A total of 13 species belonging to four orders were collected, comprising five anostracans, one notostracan, six spinicaudatans and one laevicaudatan. Cyzicus australis was most common, occurring in 46% of the waterbodies. Species co-occurred in 87% of the waterbodies, with a maximum number of six species recorded from the same waterbody. Our new distribution records for Lynceus truncatus, Streptocephalus spinicaudatus and Streptocephalus indistinctus represent substantial expansions of the previously known ranges for these species. Tarkastad is now the westernmost record for Streptocephalus spinicaudatus, while Jansenville now constitutes the southernmost record for Streptocephalus indistinctus. Large branchiopod distribution data from previous Eastern Cape records were combined with our current data, demonstrating that a total of 23 large branchiopod species have been recorded from the region to date. As the Karoo is one of the few major shale basins in the world where the natural baseline is still largely intact, this survey forms a basis for future reference and surface water quality monitoring during the process of shale gas exploration/extraction.

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“…Key lessons learned from these experiences include the need for (a) improved knowledge of flow‐ecology relationships in temporary waterways; (b) delineation of different types of temporary waterways; (c) increased terrestrial (e.g. soil science) and socio‐economic knowledge in assessment teams to properly consider processes and interactions distinct from those in perennial rivers (Arce et al, ); (d) incorporation of examples of desiccation‐resistant biota such as aestivating fish (Polacik & Podrabsky, ), seed and egg banks (Brock, Nielsen, Shiel, Green, & Langley, ; Rogers, ) and terrestrial species that use the river bed during non‐flow conditions (Steward et al, ); and (e) special emphasis on those non‐flow ecological processes providing services with socio‐economic value to human communities. Regarding the first point, knowledge has grown considerably in recent years (Datry, Bonada, & Boulton, ), thus facilitating the implementation of holistic approaches in temporary waterways whenever planned.…”

Section: Methodological Approaches To Design Eflows In Temporary Watementioning

confidence: 99%

Accounting for flow intermittency in environmental flows design

Acuña

Jordà-Capdevila

Vezza

et al. 2020

Journal of Applied Ecology

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River ecosystems world‐wide are affected by altered flow regimes, and advanced science and practice of environmental flows have been developed to understand and reduce these impacts. But most environmental flows approaches ignore flow intermittency, which is a natural feature of 30% of the global river network length. Ignoring flow intermittency when setting environmental flows in naturally intermittent rivers might lead to deleterious ecological effects. We review evidence of the ecological effects of flow intermittency and provide guidance to incorporate intermittency (non‐flow events) into existing methods judged as suitable for application in temporary waterways. To better integrate non‐flow events into hydrological methods, we propose a suite of new indicators to be used in the range of variability approach. These indicators reflect dry periods and the unpredictable nature of temporary waterways. We develop a predictability index for protecting those species adapted to temporary conditions. For hydraulic‐habitat models, we find that mesohabitat methods are particularly effective for describing complex habitat dynamics during dry phases. We present an example of the European eel to show the relationship between discharge and non‐flow days and wet area, habitat suitability and connectivity. We find that existing holistic approaches may be applied to temporary waterways without significant structural alteration to their stepwise frameworks, but new component methods are needed to address flow‐related aspects across both flow and non‐flow periods of the flow regime. Synthesis and applications. Setting environmental flow requirements for temporary waterways requires modification and enhancement of existing approaches and methodologies, most notably the explicit consideration of non‐flow events and greater integration of specific geomorphic, hydrogeologic and hydraulic elements. Temporary waterways are among the freshwater ecosystems most vulnerable to alterations in flow regimes, and they are also under great pressure. The methodological modifications recommended in this paper will aid water managers in protecting key components of temporary flow regimes, thereby preserving their unique ecology and associated services.

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Hatching response to temperature along a latitudinal gradient by the fairy shrimp Branchinecta lindahli (Crustacea; Branchiopoda; Anostraca) in culture conditions

Abstract: ABSTRACT

Cited by 11 publications

References 50 publications

Mass culture of fairy shrimpBranchinecta orientalis(G. O. Sars 1901) (Crustacea: Anostraca) using effluent of rainbow troutOncorhynchus mykiss(Walbaum 1792) ponds

Mass culture of fairy shrimpBranchinecta orientalis(G. O. Sars 1901) (Crustacea: Anostraca) using effluent of rainbow troutOncorhynchus mykiss(Walbaum 1792) ponds

Ecology and distribution of large branchiopods (Crustacea, Branchiopoda, Anostraca, Notostraca, Laevicaudata, Spinicaudata) of the Eastern Cape Karoo, South Africa

Accounting for flow intermittency in environmental flows design

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