Zoogeography

Stappen, Gilbert Van

doi:10.1007/978-94-017-0791-6_4

Cited by 113 publications

(76 citation statements)

References 107 publications

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“…It is found in a wide diversity of isolated water bodies, including coastal rock pools and lagoons, inland playas and high mountain salt lakes, permanent prairie salt lakes and commercial salt works (Van Stappen 2002), spanning an extreme range of water chemistry compositions and salinity from high carbonate, or high sulphate athalasic waters to seawater salterns (Bowen et al 1988). It is a sexual species, and females produce two types of eggs: subitaneous eggs in benign environmental conditions suitable for population growth, and diapausing eggs (i.e., cysts) during adverse conditions.…”

Section: Introductionmentioning

confidence: 99%

Bird migratory flyways influence the phylogeography of the invasive brine shrimp Artemia franciscana in its native American range

Muñoz

Amat

Green

et al. 2013

Preprint

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View the peer-reviewed version (peerj.com/articles/200), which is the preferred citable publication unless you specifically need to cite this preprint. flyways. There was a high degree of regional endemism, with populations subdivided into at least 12 divergent, geographically restricted and largely allopatric mitochondrial lineages, and high levels of population structure ( Φ ST of 0.92), indicating low ongoing gene flow. We found evidence of human-mediated introductions in nine out of 39 populations analysed. Once these populations were removed, Mantel tests revealed a strong association between genetic variation and geographic distance (i.e., isolation-by-distance pattern). RDA showed that shared bird flyways explained around 20% of the variance in genetic distance between populations and this was highly significant, once geographic distance was controlled for. The variance explained increased to 30% when the factor human introduction was included in the model. Our findings suggest that bird-mediated transport of brine shrimp propagules does not result in substantial ongoing gene flow; instead, it had a significant historical role on the current species phylogeography, facilitating the colonisation of new aquatic environments as PeerJ PrePrints | https://peerj.com/preprints/79v1/ | v1 received:

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Section: Introductionmentioning

confidence: 99%

Bird migratory flyways influence the phylogeography of the invasive brine shrimp Artemia franciscana in its native American range

Muñoz

Amat

Green

et al. 2013

Preprint

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“…Artemia are predominantly found in extreme habitats where few animals exist (Van Stappen 2002), and the ability to tolerate environmental perturbations makes this aquatic crustacean an interesting model organism for stress response studies (Clegg and Trotman 2002). For example, numerous studies address the effects of temperature and salinity, important physical factors in the life of this organism, on the survival of Artemia cysts, larvae, and adults (Miller and McLennan 1988a, b;Liang and MacRae 1999;Frankenberg et al 2000;Browne and Wanigasekera 2000;Clegg et al 2000a, b).…”

Section: Introductionmentioning

confidence: 99%

Exposure of gnotobiotic Artemia franciscana larvae to abiotic stress promotes heat shock protein 70 synthesis and enhances resistance to pathogenic Vibrio campbellii

Sung

Pineda

MacRae

et al. 2008

Cell Stress and Chaperones

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Larvae of the brine shrimp Artemia franciscana serve as important feed in fish and shellfish larviculture; however, they are subject to bacterial diseases that devastate entire populations and consequently hinder their use in aquaculture. Exposure to abiotic stress was shown previously to shield Artemia larvae against infection by pathogenic Vibrio, with the results suggesting a mechanistic role for heat shock protein 70. In the current report, combined hypothermic/hyperthermic shock followed by recovery at ambient temperature induced Hsp70 synthesis in Artemia larvae. Thermotolerance was also increased as was protection against infection by Vibrio campbellii, the latter indicated by reduced mortality and lower bacterial load in challenge tests. Resistance to Vibrio improved in the face of declining body mass as demonstrated by measurement of ash-free dry weight. Hypothermic stress only and acute osmotic insult did not promote Hsp70 expression and thermotolerance in Artemia larvae nor was resistance to Vibrio challenge augmented. The data support a causal link between Hsp70 accumulation induced by abiotic stress and enhanced resistance to infection by V. campbellii, perhaps via stimulation of the Artemia immune system. This possibility is now under investigation, and the work may reveal fundamental properties of crustacean immunity. Additionally, the findings are important in aquaculture where development of procedures to prevent bacterial infection of feed stock such as Artemia larvae is a priority.

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“…Another striking feature of salty lagoons in Patagonia is the high inter-annual variation in the water conditions, and the environmental situation, as reported by Campos et al (1996) for Laguna Amarga, a mesohaline lagoon located (50°29'S, 73°45'W) at the entrance of Torres del Paine National Park. Other two salty lagoons are reported thus far close to the town Porvenir: Laguna de la Sal (Gajardo & Beristain, 2014) and Laguna de los Cisnes (Van Stappen, 2002;De los Ríos & Salgado, 2012). Owing to their unique condition and placement at southern latitudes, we highlight Laguna de los Cisnes (53°15'S, 70°22'W; Fig.…”

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confidence: 69%

“…), i.e., high evaporation rates and low rainfall, are normally found in tropical and subtropical areas (Van Stappen, 2002). In fact, deep and oligotrophic freshwater lakes of glacier origin are common in Patagonia, whilst salty lagoons are relatively shallow and the exception.…”

mentioning

confidence: 99%

“…During summer in the southern hemisphere (December), the lagoon is heavily impacted by environmental conditions. persimilis (Piccinelli & Prosdocimi, 1968), a species restricted to the Chilean and Argentinian Patagonia (Gajardo & Beardmore, 1993;Gajardo et al, 2002;Van Stappen, 2002) which is predated by flamingos and other water birds found in the lagoon associated to it. Owing to the ecosystemic relevance of Laguna de los Cisnes, this note reports water, sediment and planktonic composition obtained during a December (summer) Artemia sampling campaign.…”

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confidence: 99%

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A glimpse to Laguna de los Cisnes, a field laboratory and natural monument in the Chilean Patagonia

Fuentes

Gajardo

2017

lajar

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ABSTRACT. Laguna de los Cisnes (53°15'S) is a remote and unusual salty lagoon located in the Chilean Patagonia, declared natural monument to protect bird diversity in the area, which could also serve as a natural laboratory to monitor climate change. This study reports basic water, sediment and plankton characteristics observed during a summer (December) sampling, when the lagoon was hypersaline (51 g L ). The microalgae Spirogyra sp. and the micro-crustacean Artemia are predominating plankton. Results are discussed in the context of the climatic conditions affecting this lagoon year-round.

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Zoogeography

Cited by 113 publications

References 107 publications

Bird migratory flyways influence the phylogeography of the invasive brine shrimp Artemia franciscana in its native American range

Bird migratory flyways influence the phylogeography of the invasive brine shrimp Artemia franciscana in its native American range

Exposure of gnotobiotic Artemia franciscana larvae to abiotic stress promotes heat shock protein 70 synthesis and enhances resistance to pathogenic Vibrio campbellii

A glimpse to Laguna de los Cisnes, a field laboratory and natural monument in the Chilean Patagonia

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