The introduction of the alien amphipodGammarus tigrinus Sexton, 1939 (Crustacea, Amphipoda) in The Netherlands and its competition with indigenous species

Pinkster, Sjouk

doi:10.1007/bf02263332

Cited by 53 publications

(52 citation statements)

References 8 publications

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“…We hypothesised that the non-indigenous G. tigrinus, by having a larger brood size, could be more effective in reproductive terms than the indigenous G. zaddachi. This assumption was further supported by Pinkster et al (1977) who showed that G. tigrinus became sexually mature at about only half the size (and maturation time) as G. zaddachi.…”

Section: Introductionsupporting

confidence: 62%

“…While keeping the gammarids in the laboratory, it was observed that female Gammarus tigrinus started reproducing at a smaller size, 3 mm smaller TL, than corresponding G. zaddachi females (6 mm TL for G. tigrinus and 9 mm TL for G. zaddachi), Pinkster et al (1977) has also reported from the Netherlands that G. tigrinus has a higher reproductive capacity than indigenous species, since they become sexually mature at a total body length of only 4 mm (cephalic length of ca 0.6 mm) after 27-29 d at 20°C, while e.g. G. zaddachi must reach a total body length of 7-9 mm to become reproductive which takes 40-50 d at 20°C (Kinne 1961).…”

Section: Discussionmentioning

confidence: 99%

“…In addition to our findings, it is known from previous studies that Gammarus tigrinus can live and reproduce in a wide range of salinities (Lincoln 1979), and also in polluted waters. It was originally introduced to Germany in 1957 to serve as fish food in contaminated rivers, the Werra and Weser (Schmitz 1960), where the local gammarid fauna had completely disappeared due to inorganic and organic pollution (Pinkster et al 1977), the latter leading to low oxygen. With respect to G. tigrinus in the northern Baltic Sea, we may have to deal with a highly tolerant, fecund species that in addition seems to have a short generation time.…”

Section: Discussionmentioning

confidence: 99%

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Differences in stress tolerance and brood size between a non-indigenous and an indigenous gammarid in the northern Baltic Sea

et al. 2011

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Differences in stress tolerance and reproductive traits may drive the competitive hierarchy between nonindigenous and indigenous species and turn the former ones into successful invaders. In the northern Baltic Sea, the non-indigenous Gammarus tigrinus is a recent invader of littoral ecosystems and now occupies comparable ecological niches as the indigenous G. zaddachi. In laboratory experiments on specimens collected between June and August 2009 around Tvärminne in southern Finland (59°50 0 N/23°15 0 E), the tolerances towards heat stress and hypoxia were determined for the two species using lethal time, LT 50 , as response variable. The brood size of the two species was also studied and some observations were made on maturation of juveniles. Gammarus tigrinus was more resistant to hypoxia and survived at higher temperatures than G. zaddachi. Brood size was also greater in G. tigrinus than in G. zaddachi and G. tigrinus matured at a smaller size and earlier than G. zaddachi. Hence, there are clear competitive advantages for the non-indigenous G. tigrinus compared to the indigenous G. zaddachi, and these may be further strengthened through ongoing environmental changes related to increased eutrophication and a warming climate in the Baltic Sea region.

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Section: Introductionsupporting

confidence: 62%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Differences in stress tolerance and brood size between a non-indigenous and an indigenous gammarid in the northern Baltic Sea

et al. 2011

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“…Such species displacements by invasive gammaridean species have been recorded on several occasions all over the world (Pinkster et al 1977;Dick et al 1993Dick et al , 1995Dick 1996;Dick andPlatvoet 1996, 2000;Dermott et al 1998;Jazdzewski andKonopacka 2000, 2002;Jazdzewski et al , 2004Jazdzewski et al , 2005; MacNeil and Prenter 2000; Van der Velde et al 2000Van Overdijk et al 2003;Kelly et al 2003;MacNeil et al 2004;Kelly and Dick 2005;Meyer et al 2005;Grabowski et al 2006Grabowski et al , 2007Felten et al 2008a).…”

Section: Introductionmentioning

confidence: 96%

Environmental and morphological factors influencing predatory behaviour by invasive non-indigenous gammaridean species

et al. 2009

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Predatory behaviour seems to be more frequent in invasive gammaridean species than in native ones. This results in the exclusion of other, mostly native gammaridean species and a change in benthic communities. The present study analysed the influence of environmental factors (water temperature) and morphological factors (sex, body parts involved in catching and holding prey) on the predatory behaviour of Dikerogammarus villosus. A diet study of invasive relatives of D. villosus showed that predation intensity is especially high in spring and summer, that is, at increasing and high temperatures. Experiments with D. villosus in climate rooms at various temperatures, using the native Gammarus fossarum as prey, showed that the average predation rate by both sexes gradually increased over the temperature range from 5 to 30°C. Natural mortality during the experiments was negligible compared to losses due to predation. At each temperature, the predation rate by females was lower than that by males. Males showed a steep allometric growth of body parts involved in the process of catching and holding prey, compared to females at increasing body size in a number of measurements. This may explain the difference in predatory behaviour between males and females, which plays a role in intraguild predation a supposed mechanism for species displacement.

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“…Gammarus tigrinus is a bottom-dwelling omnivore, therefore, it is relatively tolerant to pollution. Gammarus tigrinus has a specific reproduction behaviour and great reproductive capacity [18,19]. In the Gulf of Gdansk, the population of the Gammarus tigrinus is stable and sometimes replaces native species: Gammarus salinus, Gammarus zaddachi and Gammarus duebeni in areas of their distribution [20].…”

Section: Effect Of 17α-ethinylestradiol On the Time Needed For Males mentioning

confidence: 99%

Effect of 17α-Ethinylestradiol on the Time Needed for Males and Females of Gammarus tigrinus Sexton, 1939 to Re-couple

Wiśniewska¹,

Szaniawska²

2015

JESE-B

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Abstract:The aim of presented study was to determine the behavioural response of precopulatory pairs of Gammarus tigrinus exposed to the 17α-ethinylestradiol (EE2). It was hypothesized that 17α-ethinylestradiol would increase the time needed for a male to re-capture a female. Hypothesis was tested in a laboratory with 20 precopula pairs exposed to different treatment conditions. Paired animals were exposed to two different compound concentrations of 50 ng·L -1 and 500 ng·L -1. The control and solvent control was artificial sea water and artificial sea water with ethanol (the diluent for EE2). The couples were tested several times under different experimental treatments. The obtained results indicate that EE2 affects the precopulatory mate guarding behaviour of Gammarus tigrinus. EE2 in concentration of 50 ng·L -1 and 500 ng·L -1 prolonged the time needed for re-pairing. However, relative to the controls only EE2 in concentration of 500 ng·L -1 significantly prolonged the time needed for male-female re-coupling. In summary, EE2affects the reproductive behaviour of Gammarus tigrinus.

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The introduction of the alien amphipodGammarus tigrinus Sexton, 1939 (Crustacea, Amphipoda) in The Netherlands and its competition with indigenous species

Cited by 53 publications

References 8 publications

Differences in stress tolerance and brood size between a non-indigenous and an indigenous gammarid in the northern Baltic Sea

Differences in stress tolerance and brood size between a non-indigenous and an indigenous gammarid in the northern Baltic Sea

Environmental and morphological factors influencing predatory behaviour by invasive non-indigenous gammaridean species

Effect of 17α-Ethinylestradiol on the Time Needed for Males and Females of Gammarus tigrinus Sexton, 1939 to Re-couple

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