Results 101 to 110 of about 100,441 (269)
Agricultural and Forest Entomology, EarlyView.Spirodiclofen resistance levels in B. yothersi varied geographically across the Brazilian citrus belt, with higher resistance in the central region. Sublethal effects included reduced oviposition, increased non‐viable eggs and disrupted female reproduction.
Hector Alonso Escobar‐Garcia +1 more
wiley +1 more source
Toxics, 2019 The purpose of this study was to investigate the toxicity and the distribution of mercury (Hg) in the main tissues of freshwater fish (Oreochromis niloticus) after being exposed to water containing Hg(II).
Suhendrayatna Suhendrayatna +4 more
doaj +1 more source
Determination of LC50 of copper in Litopenaeus vannamei
Majallah-i ̒Ilmī-i Shīlāt-i Īrān, 2007 We determined the LC50 of copper (as CUSO_4) and it's Maximum Allowable Concentration (MAC) for Litopenaeus vannamei. The study was performed in 2003 for which bioassays were used for acute toxicity tests in a period of 96 hours during which water parameters such as water temperature, pH, dissolved oxygen, hardness, alkalinity were also measured.
Ghorbani, R. +3 more
openaire +4 more sources
Low multiplicity of infection in vivo results in purifying selection against baculovirus deletion mutants [PDF]
The in vivo fate of Autographa californica multiple nucleopolyhedrovirus deletion mutants originating from serial passage in cell culture was investigated by passaging a population enriched in these mutants in insect larvae.
Erro, E. +4 more
core +2 more sources
Studies on Resistance to Vegetative (Vip3A) and Crystal (Cry1A) Insecticidal Toxins of Bacillus thuringiensis in Heliothis virescens (Fabricius) [PDF]
, 2009 Bacillus thuringiensis (Bt) toxins expressed in commercial transgenic crop varieties are all δ-endotoxins (Cry toxins) but the identification of novel vegetative insecticidal proteins (Vip toxins) has extended the range of insecticidal proteins derived
Pickett, Brian R, Pickett, Brian R
core +1 more source
Microplastic Impacts on Seafood: A Global Synthesis of Experimental Findings
Fish and Fisheries, EarlyView.ABSTRACT Plastic pollution is a growing global concern, with plastic and microplastic particles now widespread in aquatic environments. Microplastics are frequently ingested by marine organisms, including commercially important seafood species. Ingestion can lead to a range of biological effects, influenced by the size, type and quantity of plastic, as
Nina Wootton +4 more
wiley +1 more source
DETERMINATION OF ACUTE TOXICITY OF COPPER AND COBALT FOR TILAPIA NILOTICA
Journal of Bioresource Management, 2015 During the present investigation, the 96-hr LC50 and lethal concentrations of copper and cobalt for Tilapia nilotica were determined under controlled laboratory conditions at constant pH (7.25), total hardness (255 mgL-1) and temperature (30 °C). During
Asif Naseem, Asmat Ullah, Jibran Haider
doaj +1 more source
ANALISIS FITOKIMIA DAN PENENTUAN NILAI LC50 EKSTRAK METANOL DAUN LIWAS
JURNAL ILMIAH SAINS, 2014 ABSTRAK Penentuan nilai LC50 dari ekstrak metanol daun liwas menggunakan metode Brine Shrimp Lethality Test (BSLT) terhadap hewan indikator udang Artemia salina menunjukkan nilai LC50 dari A. salina bersifat sangat toksik.Nilai LC50 yang didapatkan sebesar 15,696 mg/L.
Sumihe, Gerry +2 more
openaire +3 more sources
Toxic effect of Raphia vinifera on fish leech (Piscicola geometra) [PDF]
, 2001 This study examines acute toxicity of Raphia vinifera on fish leech, Piscicola geometra. The leeches with a mean total length of (TL) 4.2+1.0cm were exposed to various concentrations of both crude powdered and ethanolic extracts of the botanical.
Adebisi, A.A., Fafioye, O.O.
core
Journal of Fish Biology, EarlyView.Abstract The tambaqui (Colossoma macropomum, G. Cuvier 1818) thrives both in the ion‐poor waters of the Amazon and in commercial aquaculture. In both, environmental conditions can be harsh due to low ion levels, occasional high salt challenges (in aquaculture), low pH, extreme PO2 levels (hypoxia and hyperoxia), high PCO2 levels (hypercapnia), high ...
Chris M. Wood +5 more
wiley +1 more source