نتایج جستجو برای: گاوماهی شنی neogobius fluviatilis pallasi

تعداد نتایج: 2466  

2017
Anca Chiriac Marius Florin Coros Cristian Podoleanu Simona Stolnicu

1 Department of Dermatology, Apollonia University – Iasi, Romania. 2 Department of Dermatology, Institute of Macromolecular Chemistry “Petru Poni” – Iasi, Romania. 3 Department of Dermatology, Nicolina Medical Center – Iasi, Romania 4 Department of Surgery, University of Medicine and Pharmacy of Targu Mures – Mures, Romania. 5 Department of Cardiology, University of Medicine and Pharmacy of Tar...

Journal: :Chemosphere 2017
Erin S McCallum Aneesh P H Bose Theresa R Warriner Sigal Balshine

Fluoxetine (Prozac™) is designed to alter human behaviour; however, because many physiological pathways are conserved across vertebrates, this drug may affect the behaviour of fish living in fluoxetine-polluted environments. Although a number of studies have used behaviour to document the sub-lethal effects of fluoxetine, the repeatability of these effects across experiments, across behavioural...

2018
Joerg Brandner Alexander F Cerwenka Ulrich K Schliewen Juergen Geist

Few studies have systematically investigated mid- or long-term temporal changes of biological characteristics in invasive alien species considering the different phases of an invasion. We studied the invasion performance of one of the most invasive species worldwide, the round goby Neogobius melanostomus, from total absence over first occurrence until establishment from 2010 to 2015 in the uppe...

Journal: :Journal of vector borne diseases 2013
P K Mittal Nutan Nanda O P Singh C P Batra T Adak

rural plain areas of India, where Anopheles culicifacies Giles (Diptera: Culicidae) is the primary malaria vector species. This species is responsible for about 60–65% of all reported malaria cases in India1 that breeds in irrigation channels, ponds, pools and rice fields. Anopheles fluviatilis James, is another important vector of malaria in India, which is found specifically in foothills and ...

Journal: :Neotropical entomology 2009
Ranyse B Querino Neusa Hamada

The tritrophic interaction Argia insipida Hagen in Selys, the Trichogrammatidae egg parasitoid Pseudoligosita longifrangiata (Viggiani) and the host plant Tonina fluviatilis (Eriocaulacea), which is a substrate for egg deposition of A.insipid, was investigated. The study locality was a stream with rapids where macrophytes such as T. fluviatilis grow. Information on aquatic egg parasitoids is sc...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه بیرجند - دانشکده محیط زیست 1392

تالاب ها از جمله مهمترین محیط های زیست بر روی زمین هستند. بسیاری از گونه های ماهیان از تالاب به عنوان پرورشگاه، زیستگاه، محلی برای یافتن غذا و سرپناه استفاده می کنند. تالاب ها اکوسیتمی حیاتی برای ماهیان محسوب می شوند. غلظت چهار فلز سنگین (سرب، کادمیوم، نیکل و کُرُم) در بافت های دو گونه ماهی کف زی (گاوماهی سرگنده) و سطح زی (کُلمه) در تالاب بین المللی میانکاله تعیین شد. برای اندازه گیری میزان فلزات ...

Journal: :Mammalian Species 1996

Journal: :Journal of fish biology 2010
S Stoll H Hofmann P Fischer

Total length, body mass and gut content mass of young-of-the-year (YOY) perch Perca fluviatilis, dace Leuciscus leuciscus and bleak Alburnus alburnus were recorded over the summer of 2006 at three littoral sites at Upper Lake Constance. In P. fluviatilis and L. leuciscus, gut content mass correlated positively with wave-induced energy flux (E(F)) of the respective site and sampling day, while n...

2015
Pär Byström Ulf Bergström Alexander Hjälten Sofie Ståhl David Jonsson Jens Olsson

Intraguild predation interactions make fish communities prone to exhibit alternative stable states with either piscivore or prey fish dominance. In the Baltic Sea, local declines of coastal piscivores like perch (Perca fluviatilis) have been observed to coincide with high densities of sticklebacks (Gasterosteus aculeatus). Mechanisms behind this shift between piscivore and stickleback dominance...

Journal: :مجله علوم تکثیر و آبزی پروری 0
محمد قلی زاده mohammad gholizadeh babol branchواحد بابل صابر وطن دوست saber vatandoust babol branchواحد بابل باقر مجازی bagher mojazi tehranتهران

considering its gobiidea and feeding fish sturgeon caspian sea highest main and the need to fecundity this fish, this study was done in babolroud and tajan rivers in mazandaran. in order to conduct the study, 197 sand goby we were caught using an electros choker machine (v300-200) in the spring of 1390 ,which was the spawning season, at the tajan river (sari) and babolrood (babol). 103 fish whi...

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