Growth and Reproduction of the Slug Limax Valentianus Firussac in Experimental Conditions

Hommay, Gerard; Kienlen, J; Gertz, Claude; Hill, Andrew Gordon

doi:10.1093/mollus/67.2.191

Cited by 28 publications

(19 citation statements)

References 19 publications

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“…Hommay et al (2001) observed a significant variation in the weight of Limax valentianus Férrusac 1823 (Stylommatophora: Limacidae), particularly in the first days after hatching. Peake (1978) suggested that the nutritional content in individual eggs may be an important factor determining future growth patterns in pulmonates.…”

Section: Discussionmentioning

confidence: 98%

“…Studying life history aspects such as rearing density, fecundity and fertility rates allows for a better understanding of pulmonate population structure, and contributes to the management and conservation plans for these mollusks. Data of this sort also enable further studies on snail parasitology (e.g., studies on snail-fluke interactions) and physiology (e.g., regulation of growth and reproduction) (South 1992, Lam 1994, Villalobos et al 1995, Gomot de Vaufleury 2001, Hommay et al 2001, Daoust et al 2009, Dillen et al 2009). …”

Section: Discussionmentioning

confidence: 99%

“…The authors also commented about the large intraspecific and interspecific variation in these variables among several different mollusks. These reproductive variables are related to the species' success in their natural habitat and are important for laboratory rearing trials and for the development of pest control methods (Villalobos et al 1995, Hommay et al 2001. The egg size of stylommatophoran mollusks varies under different ecological and environmental conditions (Peake 1978).…”

Section: Discussionmentioning

confidence: 99%

“…Tompa (1984) and Hommay et al (2001) mentioned that slug eggs are highly temperature-sensitive. Thus, further studies that include more temperature variations are necessary to identify the factors that may influence the number of unviable eggs.…”

Section: Discussionmentioning

confidence: 99%

“…Laboratory studies on the life history of pulmonates are considered to be extremely important for developing an understanding of their complex reproductive processes and determining the environmental factors that influence them (Gomot de Vaufleury 2001, Heller 2001. Influences of temperature, photoperiod and rearing density (individuals raised in isolation or in a group) on reproduction have been demonstrated in several pulmonate species, including succineids (Enee et al 1982, South 1992, Gomot de Vaufleury 2001, Hommay et al 2001, Meireles et al 2008, Dillen et al 2009). …”

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confidence: 99%

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Reproduction of <i>Omalonyx matheroni</i> (Gastropoda: Succineidae) under laboratory conditions

Montresor

Teixeira

Paglia

et al. 2012

RBT

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Abstract:The life histories of succineids have received relatively little attention. To evaluate life history characteristics of Omalonyx matheroni, we studied a Brazilian population (Reserva Particular do Patrimônio Natural Feliciano Miguel Abdala, in Caratinga, Minas Gerais, Brazil) under laboratory conditions. The aims of the present study were (1) to describe in detail an appropriate rearing method; (2) to investigate the effects of different temperature and photoperiod conditions; and (3) to assess the effects of self and cross-fertilization on the reproductive biology of these mollusks. We studied the oviposition site, the time to sexual maturity and the influences of photoperiod and temperature on reproductive parameters of O. matheroni reared under laboratory conditions. We tested three combinations of temperature and photoperiod, designated A, B and C (A: 25ºC, 24 hours of light; B: environmental conditions of temperature and photoperiod, characterized as follows: average maximum temperature=27.1ºC, average minimum temperature=18.3ºC, average day length=12.06 hours; and C: 25ºC, zero hours of light) and two rearing densities (I: isolated and G: grouped) on reproductive parameters (number of eggs per egg mass, number of unviable eggs per mass, egg mass incubation period, and duration of the hatching period). A total of 186 individuals and 565 egg masses were studied. Data were analyzed by Student's t-test, two-way ANOVA and Chi-Square test. Eight generations were produced (March/2004-March/2006), from 35 field specimens, 91% of 3 197 eggs hatched. The time to sexual maturity was approximately three months for individuals reared in groups or in isolation (Student's t-test: t=1.41, df=31, p=0.16); however, they differed significantly in weight (Student's t-test: t=3.6, df=31, p<0.001). Regarding the influences of temperature and photoperiod on reproductive parameters, under natural environmental conditions, individuals produced a greater number of eggs per mass (ANOVA: F 2,573 =84.15, p<0.001), with a longer incubation period (ANOVA: F 2;559 =170.05, p<0.001). The extreme photoperiod conditions of 24 hours of light or zero hours of light likely imposed stress and could be related to the significant reductions in the number of eggs per mass, and egg incubation period as well as the increased synchrony in egg hatching. No correlations were observed between the number of unviable eggs per mass and the temperature, photoperiod (ANOVA: F 2,573 =0.87, p=0.92) or rearing density (ANOVA: F 1,573 =0.21, p=0.64). Individuals reared in isolation under natural conditions produced more eggs per mass and did not presented any disadvantage with respect to the variables analyzed as compared to the animals reared in groups. These results indicate that O. matheroni can successfully reproduce by selfing. Rev. Biol. Trop. 60 (2): 553-566. Epub 2012 June 01.

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Section: Discussionmentioning

confidence: 98%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

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Reproduction of <i>Omalonyx matheroni</i> (Gastropoda: Succineidae) under laboratory conditions

Montresor

Teixeira

Paglia

et al. 2012

RBT

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Slowly seeing the light: an integrative review on ecological light pollution as a potential threat for mollusks

Hussein

Bloem

Fodor

et al. 2020

Environ Sci Pollut Res

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Seasonal changes in the natural light condition play a pivotal role in the regulation of many biological processes in organisms. Disruption of this natural condition via the growing loss of darkness as a result of anthropogenic light pollution has been linked to species-wide shifts in behavioral and physiological traits. This review starts with a brief overview of the definition of light pollution and the most recent insights into the perception of light. We then go on to review the evidence for some adverse effects of ecological light pollution on different groups of animals and will focus on mollusks. Taken together, the available evidence suggests a critical role for light pollution as a recent, growing threat to the regulation of various biological processes in these animals, with the potential to disrupt ecosystem stability. The latter indicates that ecological light pollution is an environmental threat that needs to be taken seriously and requires further research attention.

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Life table estimates of the invasive slug Deroceras laeve (O. F Müller, 1774) occurring in Darjeeling Himalayas, India

Gupta,

Paul,

Barman

et al. 2024

Trop Ecol

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Growth and Reproduction of the Slug Limax Valentianus Firussac in Experimental Conditions

Cited by 28 publications

References 19 publications

Reproduction of <i>Omalonyx matheroni</i> (Gastropoda: Succineidae) under laboratory conditions

Reproduction of <i>Omalonyx matheroni</i> (Gastropoda: Succineidae) under laboratory conditions

Slowly seeing the light: an integrative review on ecological light pollution as a potential threat for mollusks

Life table estimates of the invasive slug Deroceras laeve (O. F Müller, 1774) occurring in Darjeeling Himalayas, India

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