Amphidromy in shrimps: a life cycle between rivers and the sea
Amphidromy is a diadromous life history pattern, common in tropical and subtropical freshwater caridean shrimps, in which adults live, breed and spawn small-sized embryos in freshwater but have extended larval development (ELD) in marine waters. Most completely freshwater species spawn large embryos...
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| Format: | Article |
| Language: | English |
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Escuela de Ciencias del Mar, Facultad de Recursos Naturales, Pontificia Universidad Católica de Valparaíso
2013-09-01
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| Series: | Latin American Journal of Aquatic Research |
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| Online Access: | http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2013000400002&lng=en&tlng=en |
| _version_ | 1818655534601994240 |
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| author | Raymond T Bauer |
| author_facet | Raymond T Bauer |
| author_sort | Raymond T Bauer |
| collection | DOAJ |
| description | Amphidromy is a diadromous life history pattern, common in tropical and subtropical freshwater caridean shrimps, in which adults live, breed and spawn small-sized embryos in freshwater but have extended larval development (ELD) in marine waters. Most completely freshwater species spawn large embryos with either direct or abbreviated larval development (ALD). An important benefit of amphidromy is dispersal among river systems via marine larvae, which increases their access to alternative habitats. Thus, amphidromous species have much broader geographic distributions than closely related completely freshwater ones with ALD. ALD and freshwater ELD species appear to have evolved from amphidromous species with marine ancestors. Delivery of larvae to the sea in many amphidromous species is accomplished by upstream hatching and river drift of larvae to the sea. In other species, the females themselves apparently migrate down to marine waters to spawn. After development, the postlarvae must find a river mouth and migrate upstream to the adult habitat. Migrations occur at night, with juveniles swimming or crawling along the river or stream bank. Larvae are released during the wet or flood season of the year, while juvenile migrations take place during the dry or low-flow season. Both larval downstream and juvenile upstream movements are disrupted by human impacts such as dams and other forms of river control. Although much progress has been made in understanding the evolution and ecology of amphidromy, research is still needed on all aspects of shrimp amphidromy, especially in Latin America with its diverse freshwater shrimp fauna. |
| first_indexed | 2024-12-17T03:11:13Z |
| format | Article |
| id | doaj.art-6b833004c5584271aa25b7833e4ced8a |
| institution | Directory Open Access Journal |
| issn | 0718-560X |
| language | English |
| last_indexed | 2024-12-17T03:11:13Z |
| publishDate | 2013-09-01 |
| publisher | Escuela de Ciencias del Mar, Facultad de Recursos Naturales, Pontificia Universidad Católica de Valparaíso |
| record_format | Article |
| series | Latin American Journal of Aquatic Research |
| spelling | doaj.art-6b833004c5584271aa25b7833e4ced8a2022-12-21T22:05:49ZengEscuela de Ciencias del Mar, Facultad de Recursos Naturales, Pontificia Universidad Católica de ValparaísoLatin American Journal of Aquatic Research0718-560X2013-09-01414633650S0718-560X2013000400002Amphidromy in shrimps: a life cycle between rivers and the seaRaymond T Bauer0University of Louisiana at LafayetteAmphidromy is a diadromous life history pattern, common in tropical and subtropical freshwater caridean shrimps, in which adults live, breed and spawn small-sized embryos in freshwater but have extended larval development (ELD) in marine waters. Most completely freshwater species spawn large embryos with either direct or abbreviated larval development (ALD). An important benefit of amphidromy is dispersal among river systems via marine larvae, which increases their access to alternative habitats. Thus, amphidromous species have much broader geographic distributions than closely related completely freshwater ones with ALD. ALD and freshwater ELD species appear to have evolved from amphidromous species with marine ancestors. Delivery of larvae to the sea in many amphidromous species is accomplished by upstream hatching and river drift of larvae to the sea. In other species, the females themselves apparently migrate down to marine waters to spawn. After development, the postlarvae must find a river mouth and migrate upstream to the adult habitat. Migrations occur at night, with juveniles swimming or crawling along the river or stream bank. Larvae are released during the wet or flood season of the year, while juvenile migrations take place during the dry or low-flow season. Both larval downstream and juvenile upstream movements are disrupted by human impacts such as dams and other forms of river control. Although much progress has been made in understanding the evolution and ecology of amphidromy, research is still needed on all aspects of shrimp amphidromy, especially in Latin America with its diverse freshwater shrimp fauna.http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2013000400002&lng=en&tlng=enCarideadiadromíalarvasjuvenilesmigracióntransporteríos |
| spellingShingle | Raymond T Bauer Amphidromy in shrimps: a life cycle between rivers and the sea Latin American Journal of Aquatic Research Caridea diadromía larvas juveniles migración transporte ríos |
| title | Amphidromy in shrimps: a life cycle between rivers and the sea |
| title_full | Amphidromy in shrimps: a life cycle between rivers and the sea |
| title_fullStr | Amphidromy in shrimps: a life cycle between rivers and the sea |
| title_full_unstemmed | Amphidromy in shrimps: a life cycle between rivers and the sea |
| title_short | Amphidromy in shrimps: a life cycle between rivers and the sea |
| title_sort | amphidromy in shrimps a life cycle between rivers and the sea |
| topic | Caridea diadromía larvas juveniles migración transporte ríos |
| url | http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2013000400002&lng=en&tlng=en |
| work_keys_str_mv | AT raymondtbauer amphidromyinshrimpsalifecyclebetweenriversandthesea |