Environmental factors controlling the life history of <i>Procambarus clarkii</i> (Decapoda, Cambaridae) in a temporary marsh of the Doñana National Park (SW Spain)

Bravo, Miguel Ángel del Arco; Duarte, Carlos M.; Montes, Carlos

doi:10.1080/03680770.1992.11900667

Cited by 9 publications

(15 citation statements)

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“…Specimens collected in Lake Trasimeno had a TL equal to 14 cm with a weight over 76 g. The crayfish population was characterized by a theoretical maximum length greater than 15 cm. Therefore it appears that P. clarkii lives considerably longer here than it usually does in its original habitats where most males die at the end of their first year, and females become rarely older than two years (PENN, 1943;HUNER, 1988;BRAVO et al, 1994). The three main size classes we recorded suggest, that most animals reach the age of three years, and that the largest specimens may be up to four years old.…”

Section: Discussionmentioning

confidence: 78%

“…No individuals of wild populations studied by PENN (1943) in Louisiana exceeded 11.6 cm TL and 47 g body weight. In Doňana National Park (SW Spain) and in Săo Miguel (Azores, Portugal), P. clarkii did not exceed 10.5 cm and 9.86 cm in total body length, respectively (BRAVO et al, 1994;COSTA et al, 1996). HUNER and ROMAIRE (1978) studied populations in stable deep waters from the Atchafalaya Basin in Louisiana and found that body size was directly influenced by habitat quality.…”

Section: Discussionmentioning

confidence: 92%

“…In December 2000, however, their portion raised to 77.77% before decreasing again from January to April 2001, from 61.36% to 56.57%, respectively. As described by FRUTIGER et al (1999) for a small eutrophic pond in Zwitzerland, the most likely explanation for this decrease of female numbers in autumn is that most of the mature females became ovigerous in this season and thus stayed in their borrows (BRAVO et al, 1994;FRUTIGER et al, 1999). This is likely explained by the reproductive behaviour of P. clarkii; low numbers of females in samples correspond with high numbers of ovigerous females, that are difficult to catch.…”

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confidence: 88%

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Biology of Procambarus Clarkii (Girard, 1852) in Lake Trasimeno

Dörr¹,

Porta²,

Pedicillo³

et al. 2006

Bull. Fr. Pêche Piscic.

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The aim of this study was to gather more informations about the biological characteristics of Procambarus clarkii and to investigate the reasons of its rapid expansion in Lake Trasimeno. Specimens of both sexes (544 males and 624 females) were collected from October 2000 to November 2001. During the sampling period physical factors such as water temperature and hydrologic level of Lake Trasimeno were recorded. The study was conducted monthly in order to assess this species' reproductive period. 1,168 specimens were analyzed for colour, sex, weight, and length. The sexual maturation of gonads was investigated in females. The results of this study evidenced that the population is in expansion, showing that Lake Trasimeno is an optimal habitat for this species. Key-words:Red-swamp crayfish, Procambarus clarkii, growth, reproduction, Lake Trasimeno. 1 168 exemplaires ont été analysés selon la couleur, le sexe, le poids, la longueur et le degré de maturité des gonades a été relevé pour les femelles. Les résultats de cette étude ont mis en évidence que la population de Procambarus clarkii est en expansion et il semble que le Lac Trasimeno soit un habitat optimal pour cette espèce. BIOLOGIE DE PROCAMBARUS CLARKII (GIRARD, 1852) DANS LE LAC TRASIMENO RÉSUMÉ

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Section: Discussionmentioning

confidence: 78%

Section: Discussionmentioning

confidence: 92%

mentioning

confidence: 88%

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Biology of Procambarus Clarkii (Girard, 1852) in Lake Trasimeno

Dörr¹,

Porta²,

Pedicillo³

et al. 2006

Bull. Fr. Pêche Piscic.

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“…The marsh usually floods from October to March, with a period of water retention of approximately 3 months (AprilJune). The water levels decreases progressively from May to June when the marsh dries out completely (Bravo et al, 1994; Gutiérrez-Yurrita and Montes, 1999a). The dominant aquatic vegetation in DNP's temporary freshwater marsh comprises Typha domingensis, Juncus effusus, Scirpus maritimus and Eleocharis palustris close to the riverbank.…”

Section: The Study Areamentioning

confidence: 99%

“…These changes have been principally achieved by structural modification of burrowing, which disturbs the substrate and increases turbidity, affecting the growth of macrophytes. The most important ecological consequence of the reduction in aquatic vegetation cover is the enriching of the water column with nutrients, which favors the development of phytoplankton communities, changing the ecological balance from fresh to turbid water (Scheffer et al, 1993;Bravo et al, 1994;Ackefors, 2000;Rodríguez et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

Ecological Design of a Crayfishing Program to Control Population Density of the Invasive Species Procambarus Clarkii in Doñana National Park Freshwater Marsh (Spain)

Gutiérrez-Yurrita

Marín-García

Montes

2015

AEER

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Gutiérrez-Yurrita et al.: Ecological design of a crayfishing program to control population density of the invasive speciesProcambarus Clarkii -513 - Abstract. The exploitation of Procambarus clarkii in Doñana National Park's freshwater marsh (DNP) has been economically important to the local human population since the 1970s. The high density of this crayfish species has been causing a major environmental impact in the Park by the substantial reduction of submerging aquatic macrophytes prairies due to its broad trophic spectrum and feeding habits, which turned the environmental frame (consisting in clear water equilibrium) into a turbid water balance. Differences in population dynamics of three population groups of P. clarkii in the DNP freshwater marsh were compared and analyzed from a fishery perspective. The objective is to reduce their ecological impact using optimal crayfishing management. Maximum growth curves showed that crayfish have different growth optimums. Recruitment of young crayfish varies between different populations; when there is an excessive increase in the density of juveniles in a population and conditions are stressful, their growth is deficient. If these conditions persist, the population could become stunted. Fishery for commercial gain is banned in DNP; however, a model of fisheries program aimed at controlling the excess population of crayfish can be effective in halting the ecological impact of this invasive species while providing an opportunity for poachers to have viable productive options. The model proposed can help to solve the problem of crayfish "poaching" through the legalization and strict control of harvesting practices.

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Invasive dynamics of the crayfish Procambarus clarkii (Girard, 1852) in the international section of the River Minho (NW of the Iberian Peninsula)

Sousa

Freitas

Мота

et al. 2013

Aquatic Conservation

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ABSTRACT1. Procambarus clarkii (Girard, 1852) is a well-established invasive species in many worldwide aquatic ecosystems and is responsible for several ecological and economic impacts. This study examines the major factors responsible for its invasive dynamics in the international section of the River Minho (north-west Iberian Peninsula).2. Data collected from June 2007 to May 2011 showed that abundance and biomass increased in the first 3 years of sampling, but suffered a decrease in the fourth year. Higher abundance and biomass were always found from May to October. These higher values have a clear relationship with water temperature and probably reflect higher activity and mobility.3. The sex-ratio was 1.08:1 in favour of females; eggs start to appear in May/June and the majority of juveniles in August/September. 4. Information collected in this study is extremely important for future management actions that could be applied to this invasive species. Accordingly, we propose that control actions to minimize P. clarkii impacts in this system, such as intensive trapping, should be applied during late spring/early summer, when the catches are higher, the females are dominant, and before juvenile recruitment.

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Environmental factors controlling the life history of Procambarus clarkii (Decapoda, Cambaridae) in a temporary marsh of the Doñana National Park (SW Spain)

Cited by 9 publications

References 3 publications

Biology of Procambarus Clarkii (Girard, 1852) in Lake Trasimeno

Biology of Procambarus Clarkii (Girard, 1852) in Lake Trasimeno

Ecological Design of a Crayfishing Program to Control Population Density of the Invasive Species Procambarus Clarkii in Doñana National Park Freshwater Marsh (Spain)

Invasive dynamics of the crayfish Procambarus clarkii (Girard, 1852) in the international section of the River Minho (NW of the Iberian Peninsula)

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