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Gonad characterization and reproductive cycle of Collisella subrugosa (Orbigny, 1846) (Gastropoda: Acmaeidae) in the Northeastern Brazil
- Source :
- Brazilian Journal of Biology, Vol 62, Iss 4b, Pp 885-895 (2002), Brazilian Journal of Biology v.62 n.4b 2002, Brazilian Journal of Biology, Instituto Internacional de Ecologia (IIE), instacron:IIE, ResearcherID, Brazilian Journal of Biology, Vol 62, Iss 4b, Pp 885-895, Brazilian Journal of Biology, Volume: 62, Issue: 4b, Pages: 885-895, Published: NOV 2002, Scopus-Elsevier
- Publication Year :
- 2002
- Publisher :
- Instituto Internacional de Ecologia, 2002.
-
Abstract
- Gonad characteristics and reproductive cycle in the acmaeid Collisella subrugosa from Northeastern Brazil were investigated. The individuals were collected monthly from February 1993 to April 1994 at Farol do Mucuripe Beach, Fortaleza, Ceará, Brazil. There is no external characteristic on the shell and the soft body structures except the gonad that allows sex differenciation. The gonad of limpet Collisella subrugosa showned four stages (1) "partially ripe", (2) "ripe", (3) "partially spawned" and (4) "spawned", stages. The reproductive cycle is continous, with the maturation and spawning running parallelly in this population. The temperature was constant during the study period and it did not seem to be important to induce the spawning. The salinity had a weak negative correlation with the spawn process. As características da gônada e o ciclo reprodutivo de uma população de Collisella subrugosa foram estudados. Os indivíduos foram coletados mensalmente de fevereiro de 1993 a abril de 1994, na Praia do Farol do Mucuripe, Fortaleza, Ceará, Brasil. Não foi evidenciada nenhuma característica da concha e de outras estruturas da parte mole que permitisse identificar o sexo dos animais, exceto a gônada. A gônada de Collisella subrugosa apresentou as seguintes fases: (1) "parcialmente madura"; (2) "madura"; (3) "parcialmente esvaziada; e (4) "esvaziada". A reprodução é contínua, com a maturação e a eliminação de gametas ocorrendo paralelamente dentro da população. A temperatura manteve-se constante no período de estudo e não pareceu exercer influência no processo de eliminação dos gametas. A salinidade apresentou correlação negativa fraca no período de desova.
- Subjects :
- Male
Collisella subrugosa
Gonad
Population
Zoology
Reproductive cycle
histology
histologia
lcsh:Botany
Gastropoda
lcsh:Zoology
medicine
Animals
ciclo reprodutivo
lcsh:QL1-991
education
Gonads
lcsh:Science
lcsh:QH301-705.5
education.field_of_study
Sex Characteristics
Collisella
biology
Limpet
Reproduction
Temperature
Soft body
biology.organism_classification
Spawn (biology)
lcsh:QK1-989
medicine.anatomical_structure
lcsh:Biology (General)
Mollusca
reproductive cicle
Female
lcsh:Q
Seasons
General Agricultural and Biological Sciences
Brazil
Subjects
Details
- Language :
- English
- ISSN :
- 16784375 and 15196984
- Volume :
- 62
- Issue :
- 4
- Database :
- OpenAIRE
- Journal :
- Brazilian Journal of Biology
- Accession number :
- edsair.doi.dedup.....642098b40433e817bbef3e634127aeda