27 research outputs found
Comparison of praziquantel pharmacokinetics and tissue distribution in fresh and brackish water cultured grass carp (ctenopharyngodon idellus) after oral administration of single bolus
Community ecology of the metazoan parasites of white croaker, Micropogonias furnieri (Osteichthyes: Sciaenidae), from the coastal zone of the State of Rio de Janeiro, Brazil
Outbreak of mortality among cage-reared cobia (Rachycentron canadum) associated with parasitism
Structure and diversity of endoparasitic infracommunities and the trophic level of Pseudoplatystoma corruscans and Schizodon borelli (Osteichthyes) of the high Paraná river
Efeitos de níveis e períodos de adaptação à lasalocida sódica sobre os parâmetros de fermentação ruminal
Morphology of Calydiscoides-Nemipteris, Sp-Nov (Monogenea), With a Redescription and Revision of the Genus
The first direct evidence of a Late Devonian coelacanth fish feeding on conodont animals
We describe the first known occurrence of a Devonian coelacanth specimen from the lower Famennian of the Holy Cross Mountains, Poland, with a conodont element preserved in its digestive tract. A small spiral and phosphatic coprolite (fossil excrement) containing numerous conodont elements and other unrecognized remains was also found in the same deposits. The coprolite is tentatively attributed to the coelacanth. Although it is unclear whether the Late Devonian coelacanth from Poland was an active predator or a scavenger, these finds provide the first direct evidence of feeding on conodont animals by early coelacanth fish, and one of the few evidences of feeding on these animals known to date. It also expands our knowledge about the diet and trophic relations between the Paleozoic marine animals in general