Feeding kinematics and morphology of the alligator gar ( Atractosteus spatula , Lacépède, 1803)
نویسندگان
چکیده
منابع مشابه
Structure and fracture resistance of alligator gar (Atractosteus spatula) armored fish scales.
The alligator gar is a large fish with flexible armor consisting of ganoid scales. These scales contain a thin layer of ganoine (microhardness ~2.5 GPa) and a bony body (microhardness ~400 MPa), with jagged edges that provide effective protection against predators. We describe here the structure of both ganoine and bony foundation and characterize the mechanical properties and fracture mechanis...
متن کاملFine Structure of the Gas Bladder of Alligator Gar, Atractosteus spatula
Anthropogenic factors seriously affect water quality and adversely affect fish populations. Agricultural run-off accumulates in the Mississippi River and the coastal estuaries. Alligator gar (Atractosteus spatula) inhabits these waters and is impacted by agricultural pollution, petrochemical contaminants and oil spills. These fish are bimodal air breathers, and use a primitive lung as an access...
متن کاملCloning of the growth hormone cDNA of alligator gar Atractosteus spatula and its expression through larval development.
The alligator gar (Atractosteus spatula) is the largest freshwater fish inhabiting rivers draining into the Gulf of Mexico. This primitive fish shows a fast growth rate since its early larval stages. This is attributed to the action of growth hormone (GH), an anterior pituitary gland hormone responsible for linear growth in vertebrates that can also be expressed in extrapituitary adult tissues ...
متن کاملKaryotypic diversity and evolutionary trends in the Neotropical catfish genus Hypostomus Lacépède, 1803 (Teleostei, Siluriformes, Loricariidae)
The family Loricariidae with 813 nominal species is one of the largest fish families of the world. Hypostominae, its more complex subfamily, was recently divided into five tribes. The tribe Hypostomini is composed of a single genus, Hypostomus Lacépède, 1803, which exhibits the largest karyotypic diversity in the family Loricariidae. With the main objective of contributing to a better understan...
متن کاملUse of Potato Starch in Diets of Tropical Gar (Atractosteus tropicus, Gill 1863) Larvae
Tropical gar, Atractosteus tropicus, is a carnivorous fish species from Southern México with high value and acceptance in local markets. Therefore, the present study aims to spare proteins in diets for larviculture of this species. An experiment was performed using three different experimental diets with increasing carbohydrate levels based on potato starch (S) and decreasing protein content (P...
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ژورنال
عنوان ژورنال: Journal of Morphology
سال: 2019
ISSN: 0362-2525,1097-4687
DOI: 10.1002/jmor.21048