Results 51 to 60 of about 737 (157)

Presence of larvae of lampreys, Lampetra sp. (Cephalaspidomorphi, Petromyzontiformes), in a French Catalan basin

open access: yes, 2018
Lamprey larvae were recently caught for the first time in a little French Catalan river, the Têt. The morphological and molecular identification demonstrated that these ammocoetes belong to the complex [Lampetra fluviatilis / Lampetra planeri]. As lampreys and their spawning beds are protected in France, this study will have an impact on the management
Arsento, Rémy   +3 more
openaire   +2 more sources

RFRP3 influences basal lamina degradation, cellular death, and progesterone secretion in cultured preantral ovarian follicles from the domestic cat. [PDF]

open access: yes, 2019
The hypothalamic neuropeptide RFRP3 can suppress hypothalamic GnRH neuron activation and inhibit gonadotropin release from the anterior pituitary. RFRP3 is also produced locally in the ovary and can inhibit steroidogenesis and follicle development in ...
Bentley, George   +2 more
core   +1 more source

Sample no IEE 15070003 description: ammocoetes of Lethenteron camtschaticum (TILESIUS, 1811) (PETROMYZONTIDAE, PETROMYZONTIFORMES) from Malaya Khuzi River (Sakhalin)

open access: yes, 2015
Paper provides biological description of both males and females of Arctic lamprey, Lethenteron camtschaticum ammocoetes from one of Sakhalin rivers, Malaya Khuzi. It briefly describes stages of development of the larvae gonads and cases of infantilism and transverse.
V, A., Kucheryavyy, Kirillova, E. A.
openaire   +2 more sources

Phylogenetic relationships of the Lokiortervirus present in the genomes of Petromyzontiformes [PDF]

open access: yes, 2022
[Resumen]: Desde hace unos 500 Ma, los Petromyzontiformes (lampreas) evolucionan de forma independiente con respecto al resto de los vertebrados, representando uno de los linajes más basales que se conocen.
Sánchez Abad, Lucía
core  

Five Trophically-transmitted Parasites from Adult Arctic Lampreys Lethenteron camtschaticum (Petromyzontiformes: Petromyzontidae): Biological Indicators of the Host's Marine Life as a Predator

open access: yesSpecies Diversity, 2014
Five species of helminth endoparasite (two digeneans, Brachyphallus crenatus (Rudolphi, 1802) and Lecithaster gibbosus (Rudolphi, 1802); two cestodes, plerocercoids of Nybelinia surmenicola (Okada in Dollfus, 1929) and a tetraphyllidean; and an acanthocephalan, post-cystacanths of Bolbosoma sp.) were found in adults of Arctic lampreys Lethenteron ...
Hirotaka Katahira   +2 more
openaire   +2 more sources

Intrinsic and Extrinsic Factors Mediating the Expression of Alternative Mating Tactics in Male Green Treefrogs, Hyla Cinerea [PDF]

open access: yes, 2016
Males of many anuran species optimize their chances of reproductive success by vigorously calling to attract females or by adopting a non-calling “satellite” mating tactic.
Liddell, Aleah R.
core   +1 more source

Distribution of freshwater fish in the south-western corner of Australia [PDF]

open access: yes, 1996
This study investigates the distribution of freshwater fishes in the Busselton to Walpole Region. A total of 311 sites in 19 major catchments along the south-west coast from Capel to Walpole, were sampled using a variety of methods.
Gill, H.S., Morgan, D.L., Potter, I.C.
core   +1 more source

Distribution, identification and biology of freshwater fishes in south-western Australia [PDF]

open access: yes, 1998
A total of 410 sites in the major watersheds in the south-western corner of Australia, bounded by Bunbury in the north-west and just east of Albany in the south-east, were sampled for fish.
Gill, H.S., Morgan, D.L., Potter, I.C.
core   +1 more source

Novel Relationships among Lampreys (Petromyzontiformes) Revealed by a Taxonomically Comprehensive Molecular Data Set [PDF]

open access: yes, 2009
The systematics of lampreys was investigated using complete mitochondrial cytochrome b sequences from all genera and nearly all recognized species. The families Geotriidae and Petromyzontidae are monophyletic, but the family Mordaciidae was resolved as ...
Cochran, Philip   +16 more
core   +2 more sources

Редкие виды рыб бассейна Северского Донца Северо-восточной Украины [PDF]

open access: yes, 2008
В обзоре дана обобщающая фаунистическая сводка по видовому составу рыб Северо-восточной Украины в верхнем и начале среднего течения Северского Донца (главный приток Дона) в основном в границах Харьковской области.
Гончаров, Г.Л.   +1 more
core  

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