Role of temperature in the reproductive cycle of Thais chocolata (Gastropoda, Muricidae) in Chanavaya, Tarapacá, Chile
The reproductive condition of Thais chocolata (copulative aggregation establishment, clutch laying in capsules and specimen density), was studied monthly between February 2009 and January 2010, in the locality of Chanavaya (Tarapacá, Chile). Results showed that the specimens are mainly distributed i...
Guardado en:
| Autores principales: | , |
|---|---|
| Lenguaje: | English |
| Publicado: |
Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar
2013
|
| Materias: | |
| Acceso en línea: | http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2013000500006 |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| id |
oai:scielo:S0718-560X2013000500006 |
|---|---|
| record_format |
dspace |
| spelling |
oai:scielo:S0718-560X20130005000062014-04-23Role of temperature in the reproductive cycle of Thais chocolata (Gastropoda, Muricidae) in Chanavaya, Tarapacá, ChileCantillanez,MarcelaAvendaño,Miguel Thais chocolata gastropod reproduction aggregation temperature Chile The reproductive condition of Thais chocolata (copulative aggregation establishment, clutch laying in capsules and specimen density), was studied monthly between February 2009 and January 2010, in the locality of Chanavaya (Tarapacá, Chile). Results showed that the specimens are mainly distributed in aggregations, and that their gonad development is asynchronous with the presence of mature females being registered during the entire year. Reproductive aggregations were found in the shallow stratus from late January to August 2009 and reappearing in January 2010. However, the larger ones (which sustained extraction) occurred during June-July and January. An increase in specimen density in the 5 to 17 m stratum was registered in May-August and December-January, coinciding with the periods previous to, during and after the highest aggregation magnitudes registered. The aggregation periods coincided with temperatures over 15°C, with a lower reproductive activity associated to a decrease in temperature. We state that abrupt temperature changes occurring in short time periods could cause mature specimen to move, increasing their density in shallow waters for reproductive purposes. We suggest increasing protection for the resource during the reproductive aggregation processes given that extraction leaves the clutches unprotected and prone to predation from other organisms.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del MarLatin american journal of aquatic research v.41 n.5 20132013-11-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2013000500006en103856/vol41-issue5-fulltext-6 |
| institution |
Scielo Chile |
| collection |
Scielo Chile |
| language |
English |
| topic |
Thais chocolata gastropod reproduction aggregation temperature Chile |
| spellingShingle |
Thais chocolata gastropod reproduction aggregation temperature Chile Cantillanez,Marcela Avendaño,Miguel Role of temperature in the reproductive cycle of Thais chocolata (Gastropoda, Muricidae) in Chanavaya, Tarapacá, Chile |
| description |
The reproductive condition of Thais chocolata (copulative aggregation establishment, clutch laying in capsules and specimen density), was studied monthly between February 2009 and January 2010, in the locality of Chanavaya (Tarapacá, Chile). Results showed that the specimens are mainly distributed in aggregations, and that their gonad development is asynchronous with the presence of mature females being registered during the entire year. Reproductive aggregations were found in the shallow stratus from late January to August 2009 and reappearing in January 2010. However, the larger ones (which sustained extraction) occurred during June-July and January. An increase in specimen density in the 5 to 17 m stratum was registered in May-August and December-January, coinciding with the periods previous to, during and after the highest aggregation magnitudes registered. The aggregation periods coincided with temperatures over 15°C, with a lower reproductive activity associated to a decrease in temperature. We state that abrupt temperature changes occurring in short time periods could cause mature specimen to move, increasing their density in shallow waters for reproductive purposes. We suggest increasing protection for the resource during the reproductive aggregation processes given that extraction leaves the clutches unprotected and prone to predation from other organisms. |
| author |
Cantillanez,Marcela Avendaño,Miguel |
| author_facet |
Cantillanez,Marcela Avendaño,Miguel |
| author_sort |
Cantillanez,Marcela |
| title |
Role of temperature in the reproductive cycle of Thais chocolata (Gastropoda, Muricidae) in Chanavaya, Tarapacá, Chile |
| title_short |
Role of temperature in the reproductive cycle of Thais chocolata (Gastropoda, Muricidae) in Chanavaya, Tarapacá, Chile |
| title_full |
Role of temperature in the reproductive cycle of Thais chocolata (Gastropoda, Muricidae) in Chanavaya, Tarapacá, Chile |
| title_fullStr |
Role of temperature in the reproductive cycle of Thais chocolata (Gastropoda, Muricidae) in Chanavaya, Tarapacá, Chile |
| title_full_unstemmed |
Role of temperature in the reproductive cycle of Thais chocolata (Gastropoda, Muricidae) in Chanavaya, Tarapacá, Chile |
| title_sort |
role of temperature in the reproductive cycle of thais chocolata (gastropoda, muricidae) in chanavaya, tarapacá, chile |
| publisher |
Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar |
| publishDate |
2013 |
| url |
http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2013000500006 |
| work_keys_str_mv |
AT cantillanezmarcela roleoftemperatureinthereproductivecycleofthaischocolatagastropodamuricidaeinchanavayatarapacachile AT avendanomiguel roleoftemperatureinthereproductivecycleofthaischocolatagastropodamuricidaeinchanavayatarapacachile |
| _version_ |
1714205116328837120 |