Results 131 to 140 of about 856 (146)
Some of the next articles are maybe not open access.
Struktura i dinamika ekosistema Dinarida / Structure and Dynamics of Ecosystem Dinarides, 2012
exaly +2 more sources
exaly +2 more sources
Zootaxa, 2020
The use of color photographs in crayfish species descriptions, state faunal books and popular articles is relatively recent. Except for verbal color descriptions, color and color patterns have not often been explored by crayfish researchers. Carotenoids and carotenoproteins are responsible for much of the color found in the integument and exoskeleton ...
openaire +3 more sources
The use of color photographs in crayfish species descriptions, state faunal books and popular articles is relatively recent. Except for verbal color descriptions, color and color patterns have not often been explored by crayfish researchers. Carotenoids and carotenoproteins are responsible for much of the color found in the integument and exoskeleton ...
openaire +3 more sources
Canadian Journal of Zoology, 2003
Crayfish have five pairs of abdominal limbs called pleopods. In males, the first and second pairs of pleopods are used for transferring spermatophores to the female during copulation. The remaining pleopods in males have no obvious function. Female crayfish use their pleopods to carry eggs. Accordingly, it is expected that the selection pressures that
Naoko Kato, Tadashi Miyashita
openaire +1 more source
Crayfish have five pairs of abdominal limbs called pleopods. In males, the first and second pairs of pleopods are used for transferring spermatophores to the female during copulation. The remaining pleopods in males have no obvious function. Female crayfish use their pleopods to carry eggs. Accordingly, it is expected that the selection pressures that
Naoko Kato, Tadashi Miyashita
openaire +1 more source
Journal of Crustacean Biology, 2022
Abstract We studied the life history and ecology of the Greenbrier Crayfish, Cambarus smilax (Loughman, Simon & Welsh, 2011) in Thorny Creek and the West Fork of the Greenbrier River, West Virginia from August 2010 to July 2011.
Paul W Hughes +5 more
openaire +1 more source
Abstract We studied the life history and ecology of the Greenbrier Crayfish, Cambarus smilax (Loughman, Simon & Welsh, 2011) in Thorny Creek and the West Fork of the Greenbrier River, West Virginia from August 2010 to July 2011.
Paul W Hughes +5 more
openaire +1 more source
2016
Crayfish are the largest mobile freshwater invertebrates and are keystone species in European aquatic ecosystems particularly in small streams and rivers. The white-clawed crayfish Austropotamobius pallipes (a species complex) is currently classified by the IUCN Red List as an endangered species (EN), because its populations have decreased ...
Vezza, Paolo +2 more
openaire +2 more sources
Crayfish are the largest mobile freshwater invertebrates and are keystone species in European aquatic ecosystems particularly in small streams and rivers. The white-clawed crayfish Austropotamobius pallipes (a species complex) is currently classified by the IUCN Red List as an endangered species (EN), because its populations have decreased ...
Vezza, Paolo +2 more
openaire +2 more sources
Australian Journal of Zoology, 1972
The development of the cephalothoracic grooves, orientation of the chelae in life (correlated with burrowing), and modifications of the sexual characters of the males are the main attributes utilized in deducing the probable phylogeny of the Parastacidae.
openaire +1 more source
The development of the cephalothoracic grooves, orientation of the chelae in life (correlated with burrowing), and modifications of the sexual characters of the males are the main attributes utilized in deducing the probable phylogeny of the Parastacidae.
openaire +1 more source
Italian Journal of Zoology, 2000
Abstract We report here on immunohistochemical studies of embryos of the Norway lobster Nephrops norvegicus at 90% development, the stage being assessed according to eye index. The sinus gland was readily identified as a teardrop shaped structure about 45 μm in length in 90% embryos and as an oval structure about 50 μm in length in post‐hatched larvae.
Giulianini PG +3 more
openaire +2 more sources
Abstract We report here on immunohistochemical studies of embryos of the Norway lobster Nephrops norvegicus at 90% development, the stage being assessed according to eye index. The sinus gland was readily identified as a teardrop shaped structure about 45 μm in length in 90% embryos and as an oval structure about 50 μm in length in post‐hatched larvae.
Giulianini PG +3 more
openaire +2 more sources
2023
Разработаны оригинальные методики, необходимые для полноценного изучения биологии колючего рака Faxonius limosus: создания основы биометрического паспорта вида, оценки морфометрической популяционной изменчивости, анализа созревания самцов, их нерестовой активности.
openaire +1 more source
Разработаны оригинальные методики, необходимые для полноценного изучения биологии колючего рака Faxonius limosus: создания основы биометрического паспорта вида, оценки морфометрической популяционной изменчивости, анализа созревания самцов, их нерестовой активности.
openaire +1 more source
Acta Zoologica
ABSTRACT Cambarus veteranus Faxon 1914 (Guyandotte River Crayfish), is a federally endangered, narrow endemic. A 2 year life history study was initiated for C. veteranus
Nicole M. Sadecky, Zachary J. Loughman
openaire +1 more source
ABSTRACT Cambarus veteranus Faxon 1914 (Guyandotte River Crayfish), is a federally endangered, narrow endemic. A 2 year life history study was initiated for C. veteranus
Nicole M. Sadecky, Zachary J. Loughman
openaire +1 more source