22 documents found, page 1 of 3
Effect of dietary l-glutamine supplementation on the intestinal physiology and ...
Matias, Ana Catarina; Viegas, Ana Rita; Couto, Ana; Lourenço-Marques, Cátia; Aragão, Cláudia; Castanho, Sara; Gamboa, Margarida; Candeias-Mendes, AnaThe maturation of the intestinal digestive and absorptive functions might limit the amount of absorbed nutrients to fulfil the high requirements of the fast-growing marine fish larva. Glutamine (Gln) has been described to improve intestinal epithelium functions, due to its involvement in energy metabolism and protein synthesis. The purpose of this study was to evaluate dietary 0.2% Gln supplementation on aspect...
Anatomy of the olfactory system and potential role for chemical communication i...
Modesto, Teresa; Gregório, Beatriz Neves; Marcelino, Gonçalo; Marquet, Nathalie; Costa, Rita; Guerreiro, Pedro Miguel; Velez, Zélia; Hubbard, PeterThe current study investigated the structure and function of the olfactory system of the Lusitanian toadfish, Halobatrachus didactylus, using histology and electrophysiology (electro-olfactogram [EOG]), respectively. The olfactory system consists of a digitated anterior peduncle, of unknown function, containing the inhalant nostril. This then leads to a U-shaped olfactory chamber with the olfactory epithelium-i...
Boat noise impacts Lusitanian toadfish breeding males and reproductive outcome
Amorim, Maria Clara P; Vieira, Manuel; Meireles, Gabriela; Novais, Sara C; Lemos, Marco F.L.; Modesto, Teresa; Alves, Daniel; Zuazu, Ana; Lopes, Ana F.Anthropogenic noise is a growing threat to marine organisms, including fish. Yet very few studies have addressed the impact of anthropogenic noise on fish reproduction, especially in situ. In this study, we investigated the impacts of boat noise exposure in the reproductive success of wild Lusitanian toadfish (Halobatrachus didactylus), a species that relies on advertisement calls for mate attraction, using beh...
Boat noise impacts Lusitanian toadfish breeding males and reproductive outcome
Amorim, M. Clara P.; Vieira, Manuel; Meireles, Gabriela; Novais, Sara C.; Lemos, Marco F.L.; Modesto, Teresa; Alves, Daniel; Zuazu, Ana; Lopes, Ana F.Anthropogenic noise is a growing threat to marine organisms, including fish. Yet very few studies have addressed the impact of anthropogenic noise on fish reproduction, especially in situ. In this study, we investigated the impacts of boat noise exposure in the reproductive success of wild Lusitanian toadfish (Halobatrachus didactylus), a species that relies on advertisement calls for mate attraction, using beh...
Boat noise impacts Lusitanian toadfish breeding males and reproductive outcome
Amorim, M. Clara P.; Vieira, Manuel; Meireles, Gabriela; Novais, Sara C.; Lemos, Marco F. L.; Modesto, Teresa; Alves, Daniel; Zuazu, Ana; Lopes, Ana F.Anthropogenic noise is a growing threat to marine organisms, including fish. Yet very few studies have addressed the impact of anthropogenic noise on fish reproduction, especially in situ. In this study, we investigated the impacts of boat noise exposure in the reproductive success of wild Lusitanian toadfish (Halobatrachus didactylus), a species that relies on advertisement calls for mate attraction, using beh...
Reproductive success in the Lusitanian toadfish : Influence of calling activity...
Amorim, Maria Clara Pessoa; Conti, Carlotta; Santos, Carla Sousa; Novais, Bruno; Gouveia, Maria D.; Vicente, Joana R.; Modesto, TeresaAcoustic signals are sexual ornaments with an established role on mate choice in several taxa, but not in fish. Recent studies have suggested that fish vocal activity may signal male quality and influence male's reproductive success but experimental evidence is lacking. Here we made two experiments to test the hypothesis that vocal activity is essential for male breeding success in a highly vocal fish, the Lusi...
Reproductive success in the Lusitanian toadfish: influence of calling activity,...
Amorim, M. Clara P.; Conti, Carlotta; Sousa-Santos, Carla; Novais, Bruno; Gouveia, Maria D.; Vicente, Joana R.; Modesto, Teresa; Gonçalves, AmparoAcoustic signals are sexual ornaments with an established role on mate choice in several taxa, but not in fish. Recent studies have suggested that fish vocal activity may signal male quality and influence male's reproductive success but experimental evidence is lacking. Here we made two experiments to test the hypothesis that vocal activity is essential for male breeding success in a highly vocal fish, the Lusi...
Agonistic sounds signal male quality in the Lusitanian toadfish
Amorim, Maria Clara Pessoa; Conti, Carlotta; Modesto, Teresa; Gonçalves, Amparo; Fonseca, Paulo JorgeAcoustic communication during agonistic behaviour is widespread in fishes. Yet, compared to other taxa, little is known on the information content of fish agonistic calls and their effect on territorial defence. Lusitanian toadfish males (Halobatrachus didactylus) are highly territorial during the breeding season and use sounds (boatwhistles, BW) to defend nests from intruders. BW present most energy in either ...
Alloparental behavior in the highly vocal Lusitanian toadfish
Ramos, Andreia; Fonseca, Paulo Jorge; Modesto, Teresa; Almada, Vítor Carvalho; Amorim, Maria Clara PessoaIn many fish species in which males guard nests with their eggs, parental care directed to genetically unrelated offspring may arise for example from nest takeovers or cuckoldry. Lusitanian toadfish (Halobatrachus didactylus) has exclusive male parental care and face intensive nest competition during the breeding season that may lead to care of foster eggs. Males of this species use visual displays and sounds w...
Alloparental behavior in the highly vocal Lusitanian toadfish
Ramos, Andreia; Fonseca, Paulo; Modesto, Teresa; Almada, V. C.; Amorim, Maria ClaraIn many fish species in which males guard nests with their eggs, parental care directed to genetically unrelated offspring may arise for example from nest takeovers or cuckoldry. Lusitanian toadfish (Halobatrachus didactylus) has exclusive male parental care and face intensive nest competition during the breeding season that may lead to care of foster eggs. Males of this species use visual displays and sounds w...