Results 101 to 110 of about 394,178 (359)

Identification of the Novel Synthetic Opioid N‐Pyrrolidino Isotonitazene at an Australian Drug Checking Service

open access: yesDrug Testing and Analysis, EarlyView.
Close collaboration between an Australian drug checking service and an affiliated university laboratory identifies and characterises the novel synthetic opioid N‐pyrrolidino isotonitazene in an expected oxycodone sample presented by a member of the public.
Blake Curtis   +3 more
wiley   +1 more source

Drivers of recreational fisher compliance in temperate marine conservation areas: A study of Rockfish Conservation Areas in British Columbia, Canada

open access: yesGlobal Ecology and Conservation, 2015
Overfishing has impacted marine species over the last century, with many large-bodied and long-lived species declining to critical levels. Marine conservation areas are a popular management tool to protect and recover marine species and their habitats ...
D. Lancaster, P. Dearden, N.C. Ban
doaj   +1 more source

Angling counts: Harnessing the power of technological advances for recreational fishing surveys

open access: yesFisheries Research, 2022
J. Dainys   +5 more
semanticscholar   +1 more source

Bait shrimp fishery of Biscayne Bay [PDF]

open access: yes, 1985
A small but valuable live bait shrimp fishery has existed in Biscayne Bay since at least the early 1950s. In recent years there has been increasing pressure from recreational fishing and environmental groups to eliminate this fishery from the Bay because
Berkeley, Steven A.   +2 more
core  

Evaluation of Therapeutic Opioids in Hair of Neonatal and Pediatric Patients

open access: yesDrug Testing and Analysis, EarlyView.
This study investigated the incorporation of novel and traditional medically used opioids into the hair of 118 pediatric and neonatal patients. Concentrations (median [range]) in hair were as follows: fentanyl: 4.03 pg/mg [0.10–343], sufentanil: 0.31 pg/mg [0.10–8.64], remifentanil: 0.14 pg/mg [0.10–0.43], and morphine: 27.4 pg/mg [1.0–1870].
Max Polke   +4 more
wiley   +1 more source

Source, fate and management of recreational fishing marine debris.

open access: yesMarine Pollution Bulletin, 2022
A. Watson   +8 more
semanticscholar   +1 more source

Recreational sector is the dominant source of fishing mortality for oceanic fishes in the Southeast United States Atlantic Ocean

open access: yesFisheries Management and Ecology, 2019
Recreational fishing is increasingly recognised as an important source of mortality for marine fish populations. In the United States, estimates of marine recreational catch and effort were recently revised for the time period 1981 and beyond, and for ...
K. Shertzer   +5 more
semanticscholar   +1 more source

Origin and Interpretation of Low Methamphetamine Levels Found in Amphetamine‐Positive Urine Samples: Support for Methylation of Amphetamine as a Minor Metabolic Pathway

open access: yesDrug Testing and Analysis, EarlyView.
A low urinary concentration of methamphetamine less than 1% of the amphetamine level may not necessarily indicate polydrug use. Instead, it could result from N‐methylation of amphetamine. Chiral analysis of both amphetamines is an effective method for distinguishing between illicit use and therapeutic sources in positive drug screening results ...
Anders Helander   +2 more
wiley   +1 more source

A quality future for recreational fishing on the West Coast. [PDF]

open access: yes, 2000
The West Coast Region between Kalbarri and Augusta offers a wide range of recreational fishing opportunities.The West Coast Region also receives more fishing pressure than any other, with an estimated 380 000 anglers fishing each year.
West Coast Recreational Fishing Working Group
core   +1 more source

THE VALUE OF THE GULF OF MEXICO RECREATIONAL RED SNAPPER FISHERY [PDF]

open access: yes
This study estimates the value of recreational red snapper fishing in the Gulf of Mexico. Additionally, the study shows how to decompose the estimated red snapper recreation demand function into changes: (i) due to recreationists who were not taking ...
Gillig, Dhazn   +2 more
core   +1 more source

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