Zobrazeno 1 - 10
of 34
pro vyhledávání: '"R. A. Patzner"'
Autor:
R. A. Patzner, S.‐M. Samaee
Publikováno v:
Journal of Applied Ichthyology. 27:928-933
Summary Tu’ini, Capoeta damascina, is a widespread species in the interior basins of Iran. To examine the morphometric variations residing within the taxon, six isolated river systems from the west, south, southwest, and centre of Iran were investi
Publikováno v:
Journal of Applied Ichthyology. 25:583-590
Summary Siah Mahi, Capoeta capoeta gracilis, is a predominant fish in the river systems of the south Caspian Sea basin. Although there is evidence of the geographical divergence of this taxon, no information is available on morphological differences
Autor:
R. A. Patzner, U. Richtarski
Publikováno v:
Journal of Fish Biology. 56:22-36
The male reproductive organs of 16 species of Mediterranean Blenniidae (Aidablennius sphynx, Blennius ocellaris, Coryphoblennius galerita, Lipophrys adriaticus, L. canevae, L. dalmatinus, L. nigriceps, Parablennius gattorugine, P. incognitus, P. sang
Autor:
Franz Lahnsteiner, R. A. Patzner
Publikováno v:
Journal of Fish Biology. 52:726-742
The spermatozoa of Boops boops, Diplodus sargus, Mullus barbatus, and Trachurus mediterraneus were motile in sea water, and in electrolyte solutions (NaCl) and non-electrolyte solutions (glucose) with an osmolality of 600–1000 mosmol kg−1. Their
Publikováno v:
The Progressive Fish-Culturist. 59:272-279
Changes in fertility, motility, sperm metabolism, and seminal plasma composition during 2-h in vitro storage on ice (2 mL semen in a 10-mL centrifuge tube with a diameter of 1 cm) were investigated for semen from rainbow trout Oncorhynchus mykiss. Af
Publikováno v:
Aquaculture Research. 28:471-479
For salmonid semen, the cryoprotective action of 10% methanol was compared with a 5% dimethyl sulphoxide (DMSO), 1% glycerol mixture, until now one of the most effective cryoprotectants. In Oncorhynchus mykiss (Walbaum), Salmo trutta L. f. fario, Sal
Autor:
G. Kaurin, R. A. Patzner
Publikováno v:
Journal of Fish Biology. 50:887-894
The sexual differentiation of Salaria (=Blennius) pavo is described from the stage of hatching to a body length of 35 mm. At hatching, the primordial germ cells (PGCs) can be recognized clearly. At a standard body length of 5 mm, they begin to protru
Publikováno v:
Journal of Fish Biology. 50:564-574
When motility of spermatozoa of Cottos gobio was initiated with distilled water, the motility rate decreased to 0% within 1 min, and significant signs of osmotic alterations were observed at the end of the motility period. By contrast, in 50 mmol 1
Publikováno v:
Aquaculture Research. 27:659-671
Using the cryopreservation method of Lahnsteiner, Berger, Weismann & Patzner (1995, Aquaculture Research26, 801-807) the influence of allowable variations of methodical parameters (storage of semen before cryopreservation, dilution ratios in the exte
Publikováno v:
The Progressive Fish-Culturist. 58:149-159
Alterations in morphology, physiology, metabolism, and fertilization capacity of the semen of rainbow trout Oncorhynchus mykiss after cryopreservation were investigated. In frozen–thawed semen, only about 10–20% of the spermatozoa had an unchange