Your browser doesn't support javascript.
loading
Thiamin dynamics during the adult life cycle of Atlantic salmon (Salmo salar).
Todisco, Vittoria; Fridolfsson, Emil; Axén, Charlotte; Dahlgren, Elin; Ejsmond, Maciej J; Hauber, Marc M; Hindar, Kjetil; Tibblin, Petter; Zöttl, Markus; Söderberg, Linda; Hylander, Samuel.
Afiliação
  • Todisco V; Centre for Ecology and Evolution in Microbial Model Systems (EEMiS), Linnaeus University, Kalmar, Sweden.
  • Fridolfsson E; Centre for Ecology and Evolution in Microbial Model Systems (EEMiS), Linnaeus University, Kalmar, Sweden.
  • Axén C; Section for Fish, National Veterinary Institute (SVA), Uppsala, Sweden.
  • Dahlgren E; Institution of Aquatic Resources, Swedish University of Agricultural Sciences (SLU), Uppsala, Sweden.
  • Ejsmond MJ; Centre for Ecology and Evolution in Microbial Model Systems (EEMiS), Linnaeus University, Kalmar, Sweden.
  • Hauber MM; Institute of Environmental Science, Jagiellonian University, Cracow, Poland.
  • Hindar K; Centre for Ecology and Evolution in Microbial Model Systems (EEMiS), Linnaeus University, Kalmar, Sweden.
  • Tibblin P; Norwegian Institute for Nature Research (NINA), Trondheim, Norway.
  • Zöttl M; Centre for Ecology and Evolution in Microbial Model Systems (EEMiS), Linnaeus University, Kalmar, Sweden.
  • Söderberg L; Centre for Ecology and Evolution in Microbial Model Systems (EEMiS), Linnaeus University, Kalmar, Sweden.
  • Hylander S; Institution of Aquatic Resources, Swedish University of Agricultural Sciences (SLU), Uppsala, Sweden.
J Fish Biol ; 104(3): 807-824, 2024 Mar.
Article em En | MEDLINE | ID: mdl-37823583
Thiamin is an essential water-soluble B vitamin known for its wide range of metabolic functions and antioxidant properties. Over the past decades, reproductive failures induced by thiamin deficiency have been observed in several salmonid species worldwide, but it is unclear why this micronutrient deficiency arises. Few studies have compared thiamin concentrations in systems of salmonid populations with or without documented thiamin deficiency. Moreover, it is not well known whether and how thiamin concentration changes during the marine feeding phase and the spawning migration. Therefore, samples of Atlantic salmon (Salmo salar) were collected when actively feeding in the open Baltic Sea, after the sea migration to natal rivers, after river migration, and during the spawning period. To compare populations of Baltic salmon with systems without documented thiamin deficiency, a population of landlocked salmon located in Lake Vänern (Sweden) was sampled as well as salmon from Norwegian rivers draining into the North Atlantic Ocean. Results showed the highest mean thiamin concentrations in Lake Vänern salmon, followed by North Atlantic, and the lowest in Baltic populations. Therefore, salmon in the Baltic Sea seem to be consistently more constrained by thiamin than those in other systems. Condition factor and body length had little to no effect on thiamin concentrations in all systems, suggesting that there is no relation between the body condition of salmon and thiamin deficiency. In our large spatiotemporal comparison of salmon populations, thiamin concentrations declined toward spawning in all studied systems, suggesting that the reduction in thiamin concentration arises as a natural consequence of starvation rather than to be related to thiamin deficiency in the system. These results suggest that factors affecting accumulation during the marine feeding phase are key for understanding the thiamin deficiency in salmonids.
Assuntos
Palavras-chave

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Tiamina / Salmo salar Limite: Animals Idioma: En Revista: J Fish Biol Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Suécia

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Tiamina / Salmo salar Limite: Animals Idioma: En Revista: J Fish Biol Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Suécia