Le franchissement d'obstacles par les salmonidés migrateurs adultes. Analyse du comportement de saut pour un meilleur aménagement

Ombredane, Dominique; Fontenelle, Guy; Ohresser, H.; Rochepeau, S.

doi:10.1051/kmae:1987009

Cited by 4 publications

(3 citation statements)

References 2 publications

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“…Even under the same photoperiod conditions, seasonal timing of migration of fish has been shown to vary, depending on other environmental factors (Northcote, 1984). In fact, for many authors the water temperature seems to be the dominant physical factor influencing the initiation of the migration (Bayley, 1973;Jensen et al, 1986;Melvin et ul., 1986;Ombredane et al, 1987;Berg & Berg, 1989). Other authors consider that river flow is the dominant factor (Sloane, 1984h;Winstone et ul., 1985) and others that it is the moon phase (Bayley, 1973).…”

Section: Discussionmentioning

confidence: 99%

Spawning period and migration of three species of cyprinids in a stream with Mediterranean regimen (SW Spain)

Rodríguez-Ruiz

Granado‐Lorencio

1992

Journal of Fish Biology

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we examined the spawning period and migration of the Iberian barbel (Bnrbus scluteri), Iberian nase (Chondrostomu polylepis willkommii), and mirror carp (Cyprinus cnrpio var. speculuris) from an upstream reservoir on a river, which has a Mediterranean regimen (SW Spain). Intensive electrofishing and tagging experiments revealed a tendency in this species to use a tributary to spawn.Barbel migration started in late Marchxarly April, when they gathered in discrete groups to abandon the reservoir. The barbel spawned in the Indiano dam (a major obstacle to upstreammigrating fish). Mass immigration occurred in mid-May. The emigration of Iberian nase began in mid-late March (not reaching the dam) and ended in late May. The carp migration began in early March. they spawned next to the dam and immigrated in late Mayearly June. Our results support the hypothesis that water temperature is the major factor that controls migration in these species.

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Section: Discussionmentioning

confidence: 99%

Spawning period and migration of three species of cyprinids in a stream with Mediterranean regimen (SW Spain)

Rodríguez-Ruiz

Granado‐Lorencio

1992

Journal of Fish Biology

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“…Water temperature was the major physical factor associated with the upstream migration of cyprinids, namely barbel and nase. For many authors water temperature is the dominant factor regulating ®sh migrations (Jensen et al 1986;Melvin et al 1986;Ombredane et al 1987;Berg and Berg 1989). Nase, as well as dace and roach, used the lift when water temperature was about 12±14°C, from mid-April until the end of summer.…”

Section: Factors Associated With Migrationmentioning

confidence: 99%

Performance of fish lift recently built at the Touvedo Dam on the Lima River, Portugal

Santos¹,

Ferreira²,

Godinho³

et al. 2002

J Appl Ichthyol

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From March 1998 to February 1999, upstream fish passage was continuously monitored by video tape analysis at the fish lift Touvedo Dam on the Lima River, northern Portugal. A total of 1194 individuals from seven species were transferred by the lift. Cyprinids were the dominant group collected, with Iberian nase Chondrostoma polylepis (Steindachner) (31.8%) being the most abundant species, followed by Iberian barbel Barbus bocagei (Steindachner) (21.1%), Iberian dace Leuciscus carolitertii (Doadrio) (19.2%) and Iberian red roach Rutilus arcasii (Steindachner) (7.1%). Brown trout Salmo trutta fario (L.) and European eel Anguilla anguilla (L.) accounted for 10.8%, whereas Atlantic salmon Salmo salar (L.) was rarely observed. Most cyprinid seasonal movements were observed in the spring and were associated with reproduction. The timing of the run varied and its beginning appeared to be mainly dependent on water temperature. Roach, dace and nase used the fish lift intensively from mid‐April until the end of summer. Barbel use of the lift intensified in mid‐May in association with warmer water. Salmonids migrated in June–July and autumn. Significant differences were not found in hourly activity, except for nase and barbel, in June and July, respectively. Fish passage was not related to river discharge. The relative effectiveness of the fish lift is discussed in relation to the various species.

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“…Nevertheless, overripening in wild salmonids may be an important factor to consider, especially when it is related to environmental changes caused by humans. In particular, hydropower development, dam building, inefficient fish ladders, handling of fish at these structures and transport are known to cause delays for migrating Atlantic salmon Salmo salar L. populations (Ombredane et al, 1987;Webb, 1990). If these delays increase overripening, they could affect the pattern and the efficiency of reproductive activities.…”

Section: Introductionmentioning

confidence: 99%

Effects of overripening on spawning behaviour and reproductive success of Atlantic salmon females spawning in a controlled flow channel

Gaudemar

Beall

1998

Journal of Fish Biology

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The influence of overripening on salmonid egg quality has often been described in artificial breeding. However, no information exists on the impact of this factor on fish reproducing naturally, although it is likely to be critical, especially in disturbed environments. Pairs of Atlantic salmon in which the size of the male and the female was evenly matched were released in a spawning channel from 1 to 12 days after ovulation. Handling did not affect egg quality.Overripening had a negative effect on egg viability. Egg mortality, infertility and malformations increased with the number of days after ovulation. In females which had just matured, 16·7% of their recovered eggs were dead, 3·1% were unfertilized and 1·7% were malformed, as compared to 25·4, 9·7 and 5·4%, respectively, in females that had been mature for at least a week. Overripening played a role in both female spawning behaviour and capacity to spawn, as females which had been mature for over a week released their eggs more quickly while they retained more ova in their abdominal cavity than early spawning females. Thus, in studies of reproductive behaviour and in particular of sexual selection, it is critical to take into account the maturation status of females since the duration of spawning activity is used by various authors to determine female sexual motivation. Alternatively, overripening may decrease the female selectivity for mates. 1998 The Fisheries Society of the British Isles

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Le franchissement d'obstacles par les salmonidés migrateurs adultes. Analyse du comportement de saut pour un meilleur aménagement

Cited by 4 publications

References 2 publications

Spawning period and migration of three species of cyprinids in a stream with Mediterranean regimen (SW Spain)

Spawning period and migration of three species of cyprinids in a stream with Mediterranean regimen (SW Spain)

Performance of fish lift recently built at the Touvedo Dam on the Lima River, Portugal

Effects of overripening on spawning behaviour and reproductive success of Atlantic salmon females spawning in a controlled flow channel

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