Population structure and dynamics and habitat conditions of the native crayfish Austropotamobius pallipes in a pond : a case study in Basque Country (Northern Iberian Peninsula)

Rallo, Ana; García-Arberas, L.

doi:10.1051/kmae:2000001

Cited by 17 publications

(12 citation statements)

References 8 publications

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“…White-clawed crayfish are well adapted to habitat conditions of these river tracts, which are affected by the arid Mediterranean climate. Indeed, unlike other geographic regions (REYNOLDS, 1979(REYNOLDS, , 1982LAURENT, 1988;ANTÓN et al, 2000;RALLO and GARCÍA-ARBERAS, 2000), in Central Italy A. italicus does not live in lentic waters, though it is possible to observe some freshwater crayfish populations in small glacial lakes over 1 100 m a.s.l. The low genetic variability of these populations in this region (SANTUCCI et al, 1997) makes A. italicus more vulnerable and threatened.…”

Section: Discussionmentioning

confidence: 92%

Can Austropotamobius Italicus Meridionalis Be Used as a Monitoring Instrument in Central Italy? Preliminary Observations

Scalici¹,

Gibertini²

2005

Bull. Fr. Pêche Piscic.

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Attributing the term bioindicator to a species complex such as Austropotamobius pallipes is complicated, considering that the meaning given to a bioindicator can vary according to the geographic position, and that A. pallipes species complex has been divided into 2 species and 5 subspecies, the possibility of using A. i. meridionalis as a bioindicator in watercourses of Central Italy was evaluated. To this end, we analysed the structure and abundance of a number of crayfish populations and then compared them to the water quality of the corresponding watercourses, using E.B.I. (Extended Biotic Index). This index provides information on water quality through an analysis of the macrobenthos community. The watercourses are assigned to various classes (from I to V, increasing the degrees of alteration). This study was carried out in several watercourses near Rome. The abundance of crayfish was found to be greatest in those tracts that are assessed as class I, where the populations seem well structured with individuals of various sizes and the sex ratio is approximately 1:1. In contrast, in class II we found a reduced presence of specimens, mostly in bad conditions. No crayfish specimens were observed in watercourses designated as class III. In light of these preliminary results, it does not seem possible to consider A. i. meridionalis as a bioindicator, given that one of the typical characteristics of a biological indicator (wide distribution) is not met. Though these results illustrate the possibility of using A. i. meridionalis populations as an excellent monitoring instrument in Central Italy. Key-words:Austropotamobius italicus meridionalis, bioindicator, monitoring instrument, water quality. AUSTROPOTAMOBIUS ITALICUS MERIDIONALIS PEUT-ELLE ÊTRE UTILISÉE COMME INSTRUMENT DE SURVEILLANCE EN ITALIE DU CENTRE? OBSERVATIONS PRÉLIMINAIRES RÉSUMÉ

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Section: Discussionmentioning

confidence: 92%

Can Austropotamobius Italicus Meridionalis Be Used as a Monitoring Instrument in Central Italy? Preliminary Observations

Scalici¹,

Gibertini²

2005

Bull. Fr. Pêche Piscic.

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“…A. pallipes and A. italicus have been found in ponds (e.g. Rallo & Garcia-Arberas, 2000) or even in burrows (Peay & Hirst, 2003), which are habitats that can experience low oxygen concentrations. Grandjean et al (1996) found a well established population of A. pallipes in small ponds where dissolved oxygen was measured between 0.8 and 5 mg l )1 .…”

Section: Discussionmentioning

confidence: 99%

Tolerance of Three European Native Species of Crayfish to Hypoxia

et al. 2006

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Species that can act as indicators of ecosystem health offer a valuable tool in the management of natural resources. Crayfish have been suggested as bioindicators of water quality in Europe and at least one species (Austropotamobius pallipes) has been studied to determine its tolerance to pollution and its potential as a bioindicator. The genus Austropotamobius includes three crayfish species native to western Europe: A. pallipes, A. italicus and A. torrentium. It was hypothesised that because of their geographical and habitat distribution, the three Austropotamobius species might vary in their value as a bioindicator of water quality. Crayfish of species A. pallipes and A. italicus were subjected to three different treatments: hypoxia (treatment 3, approx 3 mg l )1 O 2 ), light hypoxia (treatment 2, approx 5.5 mg l )1 O 2 ) and normoxia (treatment 1, control, approx 8.5 mg l )1 O 2 ). A. torrentium crayfish were only subjected to treatment 1 (control) and 3. Variations in haemolymph sodium, calcium and chloride were used as a biomarker and concentrations were measured before and after treatment to evaluate hypoxia-induced stress. Significant differences in the concentrations of sodium between the control groups (treatment 1, normoxia) and the experimental groups (treatment 3, 3 mg l )1 O 2 ) were found in the species A. pallipes and A. torrentium. Groups of A. italicus did not show any significant difference between treatments in sodium concentrations but in chloride concentrations. Crayfish of all three species demonstrated a disruption in the ion exchange process in hypoxia, but all tolerated very low oxygen concentration for an extended period of time.

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“…Males become mature at a size of 6.0-7.0 cm total length (SKURDAL and TAUGBØL, 2002). Therefore the juvenile part of the population has not been studied which was also the case in studies by NIEMI (1977), PURSIAINEN (1978, 1982), SKURDAL et al (1992), LAPPALAINEN and PURSIAINEN (1995), WESTMAN et al (1995), BOHL (1997), FRUTIGER et al (1999, GRANDJEAN et al, (2000), RALLO and GARCÍA-ARBERAS (2000).…”

Section: Discussionmentioning

confidence: 99%

“…KREBS, 1989) also pointed out Schumacher and Eschmeyer method as the most robust and useful ecological model. The estimation of population size by mark-recapture methods was frequently used in other studies (BROWN and BOWLER, 1977;WESTMAN and PURSIAINEN, 1982;SKURDAL et al, 1992;MOMOT, 1993;LAPPALAINEN and PURSIAINEN, 1995;WESTMAN et al, 1995;GHERARDI et al 1996;BYRNE et al 1999;CRUZ-HERNANDEZ et al 1999;FRUTIGER et al 1999;GRANDJEAN et al, 2000;RALLO and GARCÍA-ARBERAS, 2000;RENTZ and BREITHAUPT, 2000).…”

Section: Discussionmentioning

confidence: 99%

Estimation of Noble Crayfish (Astacus Astacus L.) Population Size in the Velika Paklenica Stream (Croatia)

Maguire¹,

Hudina²,

Erben³

2004

Bull. Fr. Pêche Piscic.

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Astacus astacus is one of four native European crayfish species living in Croatian freshwaters. It is naturally distributed in rivers belonging to the Black Sea Basin. To some rivers of the Adriatic Sea Basin, however, it had been introduced by man. According to the information from local people it is most likely that A. astacus has been introduced into the Velika Paklenica Stream during the first half of the 20 th century. Our study stream, draining the Velebit Mountain, is situated in Paklenica National Park, Middle Adriatic. The fieldwork of our study was performed during July 2000 and 2002, respectively. To estimate the population size we used mark-recapture techniques (Jolly-Seber Method, Schnabel Method and Schumacher and Eschmeyer Method). Crayfish were trapped with baited LiNi traps that were set along the stream banks at 10 m intervals and left there overnight. Caught animals were individually marked by piercing holes into the uropods and telson and then released. In July 2000 we caught 233 crayfish in total, from which 70 specimens were trapped more than once. In July 2002 we caught 296 crayfish, from which 86 were trapped more than once. Differences in the population size between the two years are discussed. Key-words:Astacus astacus, estimation of population size, mark-recapture, Croatia. ESTIMATION DE LA TAILLE DE LA POPULATION D'ÉCREVISSE À PIEDS ROUGES (ASTACUS ASTACUS L.) DANS LE FLEUVE VELIKA PAKLENICA (CROATIE) RÉSUMÉAstacus astacus est une des quatre espèces autochtones d'écrevisses de Croatie. Elle est naturellement présente dans les fleuves du bassin de la Mer Noire, mais elle vit aussi dans les fleuves du bassin Adriatique où sa présence est d'origine anthropogène. Selon l'information obtenue auprès des autochtones, cette espèce a été introduite pendant la première moitié du XX e siècle. Le fleuve Velika Paklenica est situé dans le Parc National Paklenica, drainant les eaux de la montagne Velebit, Adriatique centrale. Notre recherche a été menée en juillet 2000 et en juillet 2002. Pour estimer la taille de la population nous avons utilisé la technique du marquage-recapture (la méthode Jolly-Seber, la méthode de Schnabel et la méthode de Schumacher et Eschmeyer). Les écrevisses ont été capturées avec des nasses LiNi, placées le long du bord du fleuve, à 10 m d'intervalles, et laissées en place pendant la nuit. Les écrevisses ont été marquées individuellement, avec des trous dans les uropodes et le telson, et relâchées ensuite. En juillet 2000 nous avons capturéArticle available at

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Population structure and dynamics and habitat conditions of the native crayfish Austropotamobius pallipes in a pond : a case study in Basque Country (Northern Iberian Peninsula)

Cited by 17 publications

References 8 publications

Can Austropotamobius Italicus Meridionalis Be Used as a Monitoring Instrument in Central Italy? Preliminary Observations

Can Austropotamobius Italicus Meridionalis Be Used as a Monitoring Instrument in Central Italy? Preliminary Observations

Tolerance of Three European Native Species of Crayfish to Hypoxia

Estimation of Noble Crayfish (Astacus Astacus L.) Population Size in the Velika Paklenica Stream (Croatia)

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