Population biology of the burrowing shrimp Callichirus seilacheri (Decapoda: Callianassidae) in northern Chile
The life history of ghost shrimps, known for their role in shaping community structures in shallow water habitats, is poorly studied in species occurring along the coasts of the South American Pacific. Here we present ecological information concerning Callichirus seilacheri based upon individuals co...
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Universidad de Costa Rica
2007
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| Acceso en línea: | https://revistas.ucr.ac.cr/index.php/rbt/article/view/5814 |
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RBT58142023-03-16T16:20:57Z Population biology of the burrowing shrimp Callichirus seilacheri (Decapoda: Callianassidae) in northern Chile Population biology of the burrowing shrimp Callichirus seilacheri (Decapoda: Callianassidae) in northern Chile Hernáez, Patricio S. Wehrtmann, Ingo Densidad de madrigueras madurez sexual reproducción camarón fantasma Suramérica Pacífico Burrow density sexual maturity reproduction ghost shrimp South America Pacific The life history of ghost shrimps, known for their role in shaping community structures in shallow water habitats, is poorly studied in species occurring along the coasts of the South American Pacific. Here we present ecological information concerning Callichirus seilacheri based upon individuals collected from January to December 2003 in Las Machas beach, northern Chile. Burrow densities varied between 1.4 and 20.2 burrows / 0.25 m2, and was highest during summer (18.2 burrows / 0.25m2). The sex proportion was 1:1 during most of the study period; however, females outnumbered males in January and September. Males reached a larger maximum size than females (27.1 and 24.0 mm CL, respectively). The presence of juveniles was restricted principally to the time between February and May. Sexual maturity was reached at a size of 20.8 mm (males) and 18.1 mm CL (females). The main breeding period lasted from autumn to winter (May to August, peaking in June), and co-occurred with decreasing water temperatures and the presence of a sediment layer covering the burrows. The life history of ghost shrimps, known for their role in shaping community structures in shallow water habitats, is poorly studied in species occurring along the coasts of the South American Pacific. Here we present ecological information concerning Callichirus seilacheri based upon individuals collected from January to December 2003 in Las Machas beach, northern Chile. Burrow densities varied between 1.4 and 20.2 burrows / 0.25 m2, and was highest during summer (18.2 burrows / 0.25m2). The sex proportion was 1:1 during most of the study period; however, females outnumbered males in January and September. Males reached a larger maximum size than females (27.1 and 24.0 mm CL, respectively). The presence of juveniles was restricted principally to the time between February and May. Sexual maturity was reached at a size of 20.8 mm (males) and 18.1 mm CL (females). The main breeding period lasted from autumn to winter (May to August, peaking in June), and co-occurred with decreasing water temperatures and the presence of a sediment layer covering the burrows. Universidad de Costa Rica 2007-06-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Article Text application/pdf https://revistas.ucr.ac.cr/index.php/rbt/article/view/5814 10.15517/rbt.v55i0.5814 Revista de Biología Tropical; Vol. 55 No. S1 (2007): Volume 55 – Supplement 1 – June 2007: Proceedings of Crustacea - Workshop; 141–152 Revista de Biología Tropical; Vol. 55 Núm. S1 (2007): Volumen 55 – Suplemento 1 – Junio 2007: Reunión Crustacea - Taller; 141–152 Revista Biología Tropical; Vol. 55 N.º S1 (2007): Volume 55 – Supplement 1 – June 2007: Proceedings of Crustacea - Workshop; 141–152 2215-2075 0034-7744 10.15517/rbt.v55i0 eng https://revistas.ucr.ac.cr/index.php/rbt/article/view/5814/5550 Copyright (c) 2007 Revista de Biología Tropical http://creativecommons.org/licenses/by/4.0 |
| institution |
Universidad de Costa Rica |
| collection |
Revista de Biología Tropical |
| language |
eng |
| format |
Online |
| author |
Hernáez, Patricio S. Wehrtmann, Ingo |
| spellingShingle |
Hernáez, Patricio S. Wehrtmann, Ingo Population biology of the burrowing shrimp Callichirus seilacheri (Decapoda: Callianassidae) in northern Chile |
| author_facet |
Hernáez, Patricio S. Wehrtmann, Ingo |
| author_sort |
Hernáez, Patricio |
| description |
The life history of ghost shrimps, known for their role in shaping community structures in shallow water habitats, is poorly studied in species occurring along the coasts of the South American Pacific. Here we present ecological information concerning Callichirus seilacheri based upon individuals collected from January to December 2003 in Las Machas beach, northern Chile. Burrow densities varied between 1.4 and 20.2 burrows / 0.25 m2, and was highest during summer (18.2 burrows / 0.25m2). The sex proportion was 1:1 during most of the study period; however, females outnumbered males in January and September. Males reached a larger maximum size than females (27.1 and 24.0 mm CL, respectively). The presence of juveniles was restricted principally to the time between February and May. Sexual maturity was reached at a size of 20.8 mm (males) and 18.1 mm CL (females). The main breeding period lasted from autumn to winter (May to August, peaking in June), and co-occurred with decreasing water temperatures and the presence of a sediment layer covering the burrows. |
| title |
Population biology of the burrowing shrimp Callichirus seilacheri (Decapoda: Callianassidae) in northern Chile |
| title_short |
Population biology of the burrowing shrimp Callichirus seilacheri (Decapoda: Callianassidae) in northern Chile |
| title_full |
Population biology of the burrowing shrimp Callichirus seilacheri (Decapoda: Callianassidae) in northern Chile |
| title_fullStr |
Population biology of the burrowing shrimp Callichirus seilacheri (Decapoda: Callianassidae) in northern Chile |
| title_full_unstemmed |
Population biology of the burrowing shrimp Callichirus seilacheri (Decapoda: Callianassidae) in northern Chile |
| title_sort |
population biology of the burrowing shrimp callichirus seilacheri (decapoda: callianassidae) in northern chile |
| title_alt |
Population biology of the burrowing shrimp Callichirus seilacheri (Decapoda: Callianassidae) in northern Chile |
| publisher |
Universidad de Costa Rica |
| publishDate |
2007 |
| url |
https://revistas.ucr.ac.cr/index.php/rbt/article/view/5814 |
| work_keys_str_mv |
AT hernaezpatricio populationbiologyoftheburrowingshrimpcallichirusseilacheridecapodacallianassidaeinnorthernchile AT swehrtmanningo populationbiologyoftheburrowingshrimpcallichirusseilacheridecapodacallianassidaeinnorthernchile |
| _version_ |
1810114576911433728 |