Données récentes sur les caractéristiques morphologiques et biologiques de la population d'Alose feinte du Rhône (Alosa fallax rhodanensis Roule, 1924)

Corre, Matthieu Le; Baglinière, Jean-Luc; Sabatié, Richard; Menella, J. Y.; Pont, D.

doi:10.1051/kmae:1997002

Cited by 9 publications

(11 citation statements)

References 6 publications

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“…It takes place well before temperatures drop to below 19°C (CLARIDGE and GARDNER, 1978 ;O'LEARY and KYNARD, 1986) as has been found elsewhere LIMBURG (1996) with the American shad in the Hudson River. It is likely that this earliness is explained by the spawning grounds of Saxy on the Rhône being close (LE CORRE et al, 1997 ;LEBEL et al, 1999), about 7 km upstream of the town of Arles and about 30 km upstream of the pumps at Le Sambuc, and 55 km from the mouth of the Rhône. APRAHAMIAN (1988) suggested that juveniles migrate close to the shore, which would explain why they are readily taken up by the pumps in June-July, when they are still small.…”

Section: Discussionmentioning

confidence: 99%

“…The validity of the subspecies is still debatable, although it is certainly the twaite shad (LE CORRE et al, 1998). There have been several studies on this species, dealing with its taxonomy, status, migrations and its biology (RAMEYE et al, 1976 ;QUIGNARD and KARTAS, 1977 ;DOUCHEMENT, 1981 ;QUIGNARD and DOUCHEMENT, 1991 ;LE CORRE et al, 1997). Although the biology and ecology of spawning shad in the Rhône is well known (LE CORRE et al, 1997) practically nothing is known about the migration and the growth of young of the year in this population.…”

Section: Introductionmentioning

confidence: 99%

“…There have been several studies on this species, dealing with its taxonomy, status, migrations and its biology (RAMEYE et al, 1976 ;QUIGNARD and KARTAS, 1977 ;DOUCHEMENT, 1981 ;QUIGNARD and DOUCHEMENT, 1991 ;LE CORRE et al, 1997). Although the biology and ecology of spawning shad in the Rhône is well known (LE CORRE et al, 1997) practically nothing is known about the migration and the growth of young of the year in this population. QUIGNARD (1977) described the downstream migration in the Rhône as occurring in September-October, whereas TABARDEL, MENELLA and GENDRE (1995) and GENDRE, MENELLA and CORRAO (1997) stated that the downstream migration took place from the end of August to the end of October.…”

Section: Introductionmentioning

confidence: 99%

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Timing of Migration and Exceptional Growth of Yoy Alosa Fallax Rhodanensis (Roule, 1924) in a Lagoon in Southern France.

Crivellì¹,

Poizat²

2001

Bull. Fr. Pêche Piscic.

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The Vaccarès lagoon in the diked Rhône delta is the only lagoon in southern France out of 28 lagoons where a large population of YOY (young of the year) shad occurs every year from June-July to November-March depending on the year. This peculiar case can be explained on one hand by the nearby spawning ground in the River Rhône and its tributaries and on the other hand by a nocturnal recruitment of the YOY shad from the River Rhône to the diked Rhône delta through water pumped for rice farming. The timing of the appearance and growth of YOY shad were studied for six years. YOY began to enter through pumps in mid-June or mid-July depending on the year, with fork lengths ranging between 20-55 mm. Growth was nearly linear from mid-July to mid-December, and the growth rate (regression slope) varied significantly between years, from 0.9 to 1.4 mm.d -1 . Maximum observed total lengths of YOY were 213 mm, and mean total length of YOY at the end of the growing season was 182.9 mm ± 24.3. Growth seemed to stop in winter. The date at which YOY disappeared from catches in the Vaccarès lagoon varied between years, from mid-November to mid-March. YOY seemed to leave the lagoon after the first cold weather (air temperature < 0°C). YOY growth observed in the Vaccarès lagoon is much higher than the growth recorded in Atlantic France and in northern Europe.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Timing of Migration and Exceptional Growth of Yoy Alosa Fallax Rhodanensis (Roule, 1924) in a Lagoon in Southern France.

Crivellì¹,

Poizat²

2001

Bull. Fr. Pêche Piscic.

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“…Cependant, dans un affluent de ce dernier fleuve (rivière Zézère), elle est trouvée sous une forme lacustre (non amphihaline) suite à la création d'un barrage (Castelo de Bode) à son embouchure avec le Tage, il y a une quarantaine d'années (ALEXANDRINO, 1996). Enfin, la grande alose, considérée comme rare sur la façade méditerranéenne française (ROULE, 1924) mais introduite dans le Rhône à partir de la Dordogne dans le milieu de ce siècle (HOESTLANDT, 1958) paraît avoir totalement disparu de ce fleuve aujourd'hui (LE CORRE et al, 1997).…”

Section: Présentation Des Cours D'eau Et Des Populations D'aloses Anaunclassified

Guide Pour l'INTERPRÉTATION Des Écailles Et l'ESTIMATION De l'ÂGE Chez Les Aloses (Alosa Spp.) De La Façade Atlantique-Est Et De La Méditerranée-Ouest.

Baglinière

Sabatié

Aprahamian

et al. 2001

Bull. Fr. Pêche Piscic.

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“…Among all of the fish populations present, migrating fish were the most seriously affected. The shad (Alosa fallax rhodanensis) stock, the target species for the Rhône restoration program (Le Corre et al, 1997), decreased drastically, from 50 tons fished in the 1920's to less than 7 tons at present. The shad did not totally disappear, as 'substitute' spawning grounds appeared downstream of the first dam.…”

Section: Introductionmentioning

confidence: 99%

First results on migrating shad (Alosa fallax) and mullet (Mugil cephalus) echocounting in a lock on the Rhône River (France) using a split-beam sounder, and relationships with environmental data and fish caught

Guillard¹

2000

Aquatic Living Resources

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− The application of fisheries acoustics in shallow waters opens new fields of observation and allows new methods for abundance estimates. In this paper we deal with echocounting of migrating fish crossing the Beaucaire-Vallabrègues lock, the first obstacle encountered on the Rhône, using a SIMRAD EY500 split-beam sounder, 70 kHz frequency. Two transducers sampled a section of water and evaluated approximately 35% of the lock section, based on a calibration sphere. The number of fish crossing the lock was calculated for each fish lock. Crossing data for the fish were recorded (dates, position, exit time). The present analysis did not allow the identification of the two major species that cross the dam: shad (Alosa fallax) and mullet (Mugil cephalus).

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Données récentes sur les caractéristiques morphologiques et biologiques de la population d'Alose feinte du Rhône (Alosa fallax rhodanensis Roule, 1924)

Cited by 9 publications

References 6 publications

Timing of Migration and Exceptional Growth of Yoy Alosa Fallax Rhodanensis (Roule, 1924) in a Lagoon in Southern France.

Timing of Migration and Exceptional Growth of Yoy Alosa Fallax Rhodanensis (Roule, 1924) in a Lagoon in Southern France.

Guide Pour l'INTERPRÉTATION Des Écailles Et l'ESTIMATION De l'ÂGE Chez Les Aloses (Alosa Spp.) De La Façade Atlantique-Est Et De La Méditerranée-Ouest.

First results on migrating shad (Alosa fallax) and mullet (Mugil cephalus) echocounting in a lock on the Rhône River (France) using a split-beam sounder, and relationships with environmental data and fish caught

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