Use este identificador para citar ou linkar para este item: https://repositorio.inpa.gov.br/handle/1/15059
Título: Biparental mucus feeding: A unique example of parental care in an Amazonian cichlid
Autor: Buckley, Jonathan
Maunder, Richard J.
Foey, Andrew David
Pearce, Janet
Val, Adalberto Luis
Sloman, Katherine A.
Palavras-chave: Hydrocortisone
Immunoglobulin M
Ion
Mucoprotein
Animals
Behavior, Animals
Animals Food
Cichlid
Feeding Behavior
Female
Immunology
Male
Maternal Behavior
Metabolism
Mucus
Paternal Behavior
Physiology
Animals Nutritional Physiological Phenomena
Animal
Behavior, Animals
Cichlids
Feeding Behavior
Female
Hydrocortisone
Immunoglobulin M
Ions
Male
Maternal Behavior
Mucoproteins
Mucus
Paternal Behavior
Aves
Cichlidae
Mammalia
Symphysodon
Vertebrata
Data do documento: 2010
Revista: Journal of Experimental Biology
Encontra-se em: Volume 213, Número 22, Pags. 3787-3795
Abstract: Vertebrates display a wide variety of parental care behaviours, including the guarding of offspring pre and post nutritional independence as well as the direct provision of nutrients during the early development period. The Amazonian cichlid Symphysodon spp. (discus fish) is unusual among fish species, in that both parents provide offspring with mucus secretions to feed from after hatching. This extensive provision of care, which can last up to a month, imposes a physiological demand on both parents and gives rise to conflict between the parent and offspring. Here, we investigated the relationship between parents and offspring during a breeding cycle, determining both mucus composition (total protein, cortisol, immunoglobulin, and Na+, K +, and Ca2+ concentrations) and the behavioural dynamics of the parent-offspring relationship. Over the course of a breeding cycle, a significant increase in offspring bite rate was recorded, with a concomitant increase in the frequency of turns the male and female parent took at caring for their young. A peak in mucus antibody provision was seen as offspring reached the free-swimming stage, suggesting a role analogous to colostrum provision in mammals. Mucus protein content was lowest during the second and third weeks of free swimming, and a weaning period, similar to that seen in mammalian parental care, occurred when the offspring had been free swimming for ∼3?weeks. In many ways, the parental behaviour of discus fish is more similar to mammalian and avian parental care than other fish species, and represents an exciting aquatic model for studying the parent-offspring conflict. ©2010. Published by The Company of Biologists Ltd.
DOI: 10.1242/jeb.042929
Aparece nas coleções:Artigos

Arquivos associados a este item:
Arquivo Descrição TamanhoFormato 
artigo-inpa.pdf461,6 kBAdobe PDFThumbnail
Visualizar/Abrir


Este item está licenciada sob uma Licença Creative Commons Creative Commons