Results 21 to 30 of about 6,694 (212)

Tracking the Pulse of the Dunes: Seasonal Metabolic Responses of Liolaemus arambarensis to Climatic Variability. [PDF]

J Exp Zool A Ecol Integr Physiol
ABSTRACT Seasonal environmental fluctuations profoundly influence ectothermic vertebrates, regulating their physiology, metabolism, and life cycles. This study investigated the metabolic and morphometric seasonal dynamics of the subtropical sand lizard Liolaemus arambarensis, an endangered species endemic to the coastal dunes of southern Brazil.
Valgas AAN, Cubas GK, de Oliveira DR, Araujo JF, Oliveira GT, Verrastro L.   +5 more
europepmc   +2 more sources

Gonadal steroids levels and vitellogenesis in the formation of oocytes in Prochilodus lineatus (Valenciennes) (Teleostei: Characiformes)

Neotropical Ichthyology
The objective of this study was to obtain information about the possible mechanisms related to poor reproductive performance in tropical rheophilic fish.
Patrick Hainfellner, Thiago Gonçalves de Souza, Renata Guimarães Moreira, Laura Satiko Okada Nakaghi, Sergio Ricardo Batlouni   +4 more
doaj   +1 more source

Interaction between the parasitic barnacle Polyascus planus (Cirripedia: Rhizocephala) and its brachyuran host Metopograpsus thukuhar during the development of the externa of the parasite: Control of the gonadal development and vitellogenin synthesis of the host

Frontiers in Marine Science, 2022
Developmental profile of the female reproductive apparatus (the externa) of Polyascus planus parasitizing the thukuhar shore-crab Metopograpsus thukuhar is described.
Hsiang-Yin Chen, Chien-Hsun Lee, Chih-Cheng Tsai, Hung-Chang Liu, Su-Ling Yang, Chi-Ying Lee, Chi-Ying Lee   +6 more
doaj   +1 more source

Gonadal proliferation and reproductive cycle of the exotic sea squirt Cnemidocarpa amphora () (Pleurogona, Styelidae) sampled for the first time from the northern coast of Arabian Gulf in Saudi Arabia [PDF]

Brazilian Journal of Biology, 2023
Specimens of Cnemidocarpa amphora were collected monthly from the Arabian Gulf from September 2017 to August 2018. Parts of their gonads were prepared for histological testing. The gonads’ diameters varied by month.
N. A. AlQurashi, G. Ibrahim
doaj   +1 more source

Mechanisms of Egg Yolk Formation and Implications on Early Life History of White Perch (Morone americana). [PDF]

PLoS ONE, 2015
The three white perch (Morone americana) vitellogenins (VtgAa, VtgAb, VtgC) were quantified accurately and precisely in the liver, plasma, and ovary during pre-, early-, mid-, and post-vitellogenic oocyte growth using protein cleavage-isotope dilution ...
Justin Schilling, Philip L Loziuk, David C Muddiman, Harry V Daniels, Benjamin J Reading   +4 more
doaj   +1 more source

Histological and Histochemical Dynamism of Oogenesis in the Cinnamon River Prawn Macrobrachium acanthurus (Caridea: Palaemonidae) Induced by Eyestalk Ablation

Anais da Academia Brasileira de Ciências, 2022
Macrobrachium acanthurus is a caridean prawn native to Brazil, and studying techniques to assist in its cultivation is important due to economic interest in it.
MARIA M. RODRIGUES, LAURA S. LÓPEZ GRECO, LUIS CARLOS F. DE ALMEIDA, GIOVANA BERTINI   +3 more
doaj   +1 more source

Vitellogenesis in Blue Gourami is Accompanied by Brain Transcriptome Changes

Fishes, 2019
The blue gourami (Trichogaster trichopterus) is a model for hormonal control of reproduction in Anabantidae fish, but also relevant to other vertebrates.
Gad Degani, Amir Alon, Akram Hajouj, Ari Meerson   +3 more
doaj   +1 more source

Table_1_Suppression of a Novel Vitellogenesis-Inhibiting Hormone Significantly Increases Ovarian Vitellogenesis in the Black Tiger Shrimp, Penaeus monodon.xlsx

, 2021
In this study, a novel Crustacean Hyperglycemic Hormone-type II gene (CHH-type II) was identified and biologically characterized in a shrimp, Penaeus monodon. Based on its structure and function, this gene was named P.
Wanita Semchuchot (11662156), Prawporn Thaijongrak (11662159), Thanapong Kruangkum (3519836), Rapeepun Vanichviriyakit (4953796), Prasert Sobhon (177629), Phaivit Laphyai (11662153), Pei-San Tsai (365660), Charoonroj Chotwiwatthanakun (679584)   +7 more
core   +1 more source

Transcriptomic Changes during Previtellogenic and Vitellogenic Stages of Ovarian Development in Wreckfish (Hāpuku), Polyprion oxygeneios (Perciformes)

Fishes, 2019
‘Wreckfish’ a collective of species belonging to the family Polyprionidae, are an important commercial fishery and have significant aquaculture potential.
Matthew J Wylie, Jane E Symonds, Alvin N Setiawan, Glen W Irvine, Hui Liu, Abigail Elizur, P Mark Lokman   +6 more
doaj   +1 more source

The vitellogenesis-inhibiting hormone (SpVIH) of the crab Scylla paramamosain is not likely to have a vitellogenesis-inhibiting function in the ovary

, 2023
The function and molecular characterization of the previously reported crab (Scylla paramamosain) vitellogenesis inhibiting hormone SpVIH is still unclear. In this experiment, SpVIH’s bioinformatic and functional characterizations were analyzed. Sequence
De-An Ji, Cheng-Gui Wang, Ji, De-An, Chan, Siuming F., Zhao, Yan-Fei, Yan-Fei Zhao, Wang, Cheng-Gui, Siuming F. Chan   +7 more
core   +1 more source