The osmoregulatory ability of the invasive species sunbleak Leucaspius delineatus and topmouth gudgeon Pseudorasbora parva at elevated salinities, and their likely dispersal via brackish waters

Scott, Dawn M.; Wilson, Rod W.; Brown, J. Anne

doi:10.1111/j.1095-8649.2007.01378.x

Cited by 13 publications

(12 citation statements)

References 27 publications

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“…14) in marine waters. However, although in the past this species was considered to be a strictly stenohaline freshwater fish, it has been demonstrated that this cyprinid can tolerate the low salinity level of brackish waters and is probably able to disperse into new river systems via low salinity coastal regions (Scott et al, 2007). In conclusion, this invasive species could also spread from a river to another river through coastal areas, especially in those areas where there are several rivers along short coastal stretches, as in the case of this study (the nearest small stream was at only 281 m from the stream indicated in Fig.13b, i.e.…”

Section: The Presence Of Pseudorasbora Parva (Temminck and Schlegel 18mentioning

confidence: 99%

New Mediterranean Biodiversity Records (October, 2014)

et al. 2014

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The Collective Article ‘New Mediterranean Biodiversity Records’ of the Mediterranean Marine Science journal offers the means to publish biodiversity records in the Mediterranean Sea. The current article is divided in two parts, for records of alien and native species respectively. The new records of alien species include: the red alga Asparagopsis taxiformis (Crete and Lakonicos Gulf) (Greece); the red alga Grateloupia turuturu (along the Israeli Mediterranean shore); the mantis shrimp Clorida albolitura (Gulf of Antalya, Turkey); the mud crab Dyspanopeus sayi (Mar Piccolo of Taranto, Ionian Sea); the blue crab Callinectes sapidus (Chios Island, Greece); the isopod Paracerceis sculpta (northern Aegean Sea, Greece); the sea urchin Diadema setosum (Gökova Bay, Turkey); the molluscs Smaragdia souverbiana, Murex forskoehlii, Fusinus verrucosus, Circenita callipyga, and Aplysia dactylomela (Syria); the cephalaspidean mollusc Haminoea cyanomarginata (Baia di Puolo, Massa Lubrense, Campania, southern Italy); the topmouth gudgeon Pseudorasbora parva (Civitavecchia, Tyrrhenian Sea); the fangtooth moray Enchelycore anatine (Plemmirio marine reserve, Sicily); the silver-cheeked toadfish Lagocephalus sceleratus (Saros Bay, Turkey; and Ibiza channel, Spain); the Indo-Pacific ascidian Herdmania momusin Kastelorizo Island (Greece); and the foraminiferal Clavulina multicam erata (Saronikos Gulf, Greece). The record of L. sceleratus in Spain consists the deepest (350-400m depth) record of the species in the Mediterranean Sea. The new records of native species include: first record of the ctenophore Cestum veneris in Turkish marine waters; the presence of Holothuria tubulosa and Holothuria polii in the Bay of Igoumenitsa (Greece); the first recorded sighting of the bull ray Pteromylaeus bovinus in Maltese waters; and a new record of the fish Lobotes surinamensis from Maliakos Gulf.

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Section: The Presence Of Pseudorasbora Parva (Temminck and Schlegel 18mentioning

confidence: 99%

New Mediterranean Biodiversity Records (October, 2014)

et al. 2014

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“…While previous studies on saliity tolerance of invasive fishes have shown brackish conditions to be a potential barrier to father invasion (Scott et al 2007), H. cyanoguttatm appeared to have little diflticulty surviving and growing in brackish conditions. Even with a relatively rapid rise in salinity, both salinity treatments produced H. cyanoguttatus that had positive growth.…”

Section: Discussionmentioning

confidence: 85%

Growth of Non-Native Rio Grande Cichlids (Herichthys cyanoguftatus) at Different Salinities and in the Presence of Native Bluegill (Lepomis macrochirus)

Lorenz¹,

O'Connell

2008

Journal of Freshwater Ecology

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The Rio Grande cichlid (Herichthys cyanoguttatus) is a non-native fish that has become established in the greater New Orleans metropolitan area. We conducted laboratory experiments to determine if H. cyanoguttatus growth was impacted either by salinity or the presence of bluegill (Lepomis macrochirus), a native fish. There was no significant difference in growth ofH. cyanoguttatus held at three different salinities (0,8, and 16 psu) for 14 d. When H. cyanoguttatm and L, macrochirus were held at 0 psu for 28 d both with and without the other species present (n = 6 per trial), there was a significant difference in growth between species. Lepomis macrochirus held on their own grew faster than H. cyanoguttatus on their own and faster than H. cyanoguttatus held with L. macrochirus @ < 0.005). Also, L. macrochirus housed with H. cyanoguttatus grew faster than H. cyanoguttatus on their own and faster than H. cyanoguttatus with L. macrochirus (p < 0.001). A second 28 d trial compared growth of individual H. cyanogutatus and L. macrochirus held together with different relative sizes (half with a larger H. cyanoguttatus as invader [n=7]; half with a smaller H. cyanoguttatus as invader [n=7]). This experiment showed no significant difference in growth between the species (g = 0.064). These results indicate that salinity levels will not limit H. cyanoguttatus dispersal in southeastern Louisiana, while biotic resistance in the form of native L. macrochirus may or may not impact growth of this non-native species.

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“…Previous studies have shown that sunbleak and topmouth gudgeon, two invasive freshwater species of fishes in European lakes, ponds and rivers, can tolerate salinities up to the iso‐osmotic point or slightly hyper‐osmotic to the plasma osmolality when held in fresh water (Scott et al , 2007). This information might suggest an ability to disperse through low salinity waters but to assess this more fully requires integrated analysis of behavioural and physiological responses to saline waters.…”

Section: Discussionmentioning

confidence: 99%

“…e . water temperature during the experiments was 15·0 ± 0·1° C. Fishes were exposed to three experimental regimes, similar to those in Scott et al (2007), for 24 h: (a) fresh water (mean ± s . e .…”

Section: Methodsmentioning

confidence: 99%

Can sunbleak Leucaspius delineatus or topmouth gudgeon Pseudorasbora parva disperse through saline waters?

Scott

Wilson

Brown

2007

Journal of Fish Biology

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In order to determine the potential for the invasive fishes sunbleak Leucaspius delineatus and topmouth gudgeon Pseudorasbora parva to disperse through saline waters their behaviour and physiology were investigated during exposure to salinities of 10Á0 and 12Á5. Increased salinity caused an increase in whole body cortisol in both species, but sunbleak and topmouth gudgeon showed very different metabolic and behavioural responses to the salinity stress. Sunbleak displayed increased swimming activity in brackish water, which may be important for dispersal through saline waters in the wild, although there were increased metabolic costs associated with this behaviour. Conversely, topmouth gudgeon showed a reduction in both swimming activity and metabolic rate in brackish waters. A pronounced depression in food intake (70-80%) was shown by both species during the salinity exposures. Both sunbleak and topmouth gudgeon, however, showed a full recovery of food intake within 24 h following return to fresh water. Despite the fact that exposure to saline waters is stressful, and affects both physiology and behaviour, rapid recovery of appetite after return to fresh water suggests that short-term use of brackish waters is a feasible dispersal route for sunbleak and topmouth gudgeon in the wild.

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The osmoregulatory ability of the invasive species sunbleak Leucaspius delineatus and topmouth gudgeon Pseudorasbora parva at elevated salinities, and their likely dispersal via brackish waters

Cited by 13 publications

References 27 publications

New Mediterranean Biodiversity Records (October, 2014)

New Mediterranean Biodiversity Records (October, 2014)

Growth of Non-Native Rio Grande Cichlids (Herichthys cyanoguftatus) at Different Salinities and in the Presence of Native Bluegill (Lepomis macrochirus)

Can sunbleak Leucaspius delineatus or topmouth gudgeon Pseudorasbora parva disperse through saline waters?

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