Effects of chronic crude oil exposure on early developmental stages of the Northern krill (Meganyctiphanes norvegica)

first_imgRising oil and gas activities in northern high latitudes have led to an increased risk of petroleum pollution in these ecosystems. Further, seasonal high UV radiation at high latitudes may elevate photo-enhanced toxicity of petroleum pollution to marine organisms. Zooplanktons are a key ecological component of northern ecosystems; therefore, it is important to assess their sensitivity to potential pollutants of oil and gas activity. As ontogenetic development may be particularly sensitive, the aim of this study was to examine the impact of chronic exposure to oil water dispersion (OWD) on development and feeding of early life stages of the Northern krill, Meganyctiphanes norvegica. In a range of experiments, embryonic, nonfeeding, and feeding larval stages were exposed to concentrations of between 0.01 and 0.1 mg/L of oil or photo-modified oil for 19 and 21 d. No significant effects on egg respiration, hatching success, development, length and larval survival were observed from these treatments. Similarly, evolution of fatty acid composition patterns during ontogenetic development was unaffected. The results indicates a high degree of resilience of these early developmental stages to such types and concentrations of pollutants. However, feeding and motility in later calyptopis-stage larvae were significantly impaired at exposure of 0.1 mg/L oil. Data indicate that feeding larval stage of krill was more sensitive to OWD than early nonfeeding life stages. This might be attributed to the narcotic effects of oil pollutants, their direct ingestion, or accumulated adverse effects over early development.last_img read more

An assessment of recent and future temperature change over the Sichuan Basin, China, using CMIP5 climate models

first_imgThe Sichuan basin is one of the most densely populated regions of China, making the area particularly vulnerable to the adverse impacts associated with future climate change. As such, climate models are important for understanding regional and local impacts of climate change and variability, like heat stress and drought. In this study, climate models from phase 5 of the Coupled Model Intercomparison Project (CMIP5) are validated over the Sichuan basin by evaluating how well each model can capture the phase, amplitude, and variability of the regionally observed mean, maximum, and minimum temperature between 1979 and 2005. The results reveal that the majority of the models do not capture the basic spatial pattern and observed means, trends, and probability distribution functions. In particular, mean and minimum temperatures are underestimated, especially during the winter, resulting in biases exceeding −3°C. Models that reasonably represent the complex basin topography are found to generally have lower biases overall. The five most skillful climate models with respect to the regional climate of the Sichuan basin are selected to explore twenty-first-century temperature projections for the region. Under the CMIP5 high-emission future climate change scenario, representative concentration pathway 8.5 (RCP8.5), the temperatures are projected to increase by approximately 4°C (with an average warming rate of +0.72°C decade−1), with the greatest warming located over the central plains of the Sichuan basin, by 2100. Moreover, the frequency of extreme months (where mean temperature exceeds 28°C) is shown to increase in the twenty-first century at a faster rate compared to the twentieth centurylast_img read more

Marine ecosystem assessment for the Southern Ocean: birds and marine mammals in a changing climate

first_imgThe massive number of seabirds (penguins and procellariiformes) and marine mammals (cetaceans and pinnipeds) – referred to here as top predators – is one of the most iconic components of the Antarctic and Southern Ocean. They play an important role as highly mobile consumers, structuring and connecting pelagic marine food webs and are widely studied relative to other taxa. Many birds and mammals establish dense breeding colonies or use haul-out sites, making them relatively easy to study. Cetaceans, however, spend their lives at sea and thus aspects of their life cycle are more complicated to monitor and study. Nevertheless, they all feed at sea and their reproductive success depends on the food availability in the marine environment, hence they are considered useful indicators of the state of the marine resources. In general, top predators have large body sizes that allow for instrumentation with miniature data-recording or transmitting devices to monitor their activities at sea. Development of scientific techniques to study reproduction and foraging of top predators has led to substantial scientific literature on their population trends, key biological parameters, migratory patterns, foraging and feeding ecology, and linkages with atmospheric or oceanographic dynamics, for a number of species and regions. We briefly summarize the vast literature on Southern Ocean top predators, focusing on the most recent syntheses. We also provide an overview on the key current and emerging pressures faced by these animals as a result of both natural and human causes. We recognize the overarching impact that environmental changes driven by climate change have on the ecology of these species. We also evaluate direct and indirect interactions between marine predators and other factors such as disease, pollution, land disturbance and the increasing pressure from global fisheries in the Southern Ocean. Where possible we consider the data availability for assessing the status and trends for each of these components, their capacity for resilience or recovery, effectiveness of management responses, risk likelihood of key impacts and future outlook.last_img read more

Dodgers pitcher Urias arrested on domestic battery

first_img Beau Lund FacebookTwitterLinkedInEmailGabriel Christus/ESPN Images (NEW YORK) — Dodgers pitcher Julio Urias was arrested on suspicion of domestic battery outside of a Los Angeles mall on Monday night, ESPN has learned.Urias, 22, was arrested after police responded to a report of an argument in a parking lot for the Beverly Center around 7:30 p.m. He was booked for a misdemeanor and spent the night in jail before posting $20,000 bail.The Dodgers released a statement saying that they are aware of the situation and are cooperating with the authorities and Major League Baseball, but have no further comment at this time. Urias was recently moved out of the Dodgers’ starting rotation and placed in a bullpen role where he recorded his second save in five days on Monday. Copyright © 2019, ABC Radio. All rights reserved. Written bycenter_img May 14, 2019 /Sports News – National Dodgers pitcher Urias arrested on domestic batterylast_img read more

Scoreboard roundup — 12/11/19

first_img Written by FacebookTwitterLinkedInEmailiStock(NEW YORK) — Here are the scores from Wednesday’s sports events:NATIONAL BASKETBALL ASSOCIATIONHouston 116, Cleveland 110Indiana 122, Boston 117L.A. Lakers 96, Orlando 87L.A. Clippers 112, Toronto 92Charlotte 11,3 Brooklyn 108Chicago 136, Atlanta 102 Utah 127, Minnesota 116Phoenix 115, Memphis 108New Orleans 127, Milwaukee 112Sacramento 94, Oklahoma City 93New York 114, Golden State 122 — OTNATIONAL HOCKEY LEAGUEFinal Washington 3, Boston 2Montreal 3, Ottawa 2  — OTColorado 3, Philadelphia 1TOP-25 COLLEGE BASKETBALLArizona 99, Nebraska-Omaha 49Illinois 71, Michigan 62Copyright © 2019, ABC Audio. All rights reserved. Beau Lundcenter_img December 12, 2019 /Sports News – National Scoreboard roundup — 12/11/19last_img read more

BYU wins 6th straight, holds off San Diego 72-71

first_img Written by Associated Press Tags: BYU Cougars Basketball/WCC February 15, 2020 /Sports News – Local BYU wins 6th straight, holds off San Diego 72-71 FacebookTwitterLinkedInEmailSAN DIEGO (AP) — TJ Haws and Yoeli Childs each scored 17 points as BYU held off San Diego 72-71 for its sixth straight win.Yauhen Massalski’s layup gave San Diego a 71-70 lead with 25 seconds remaining. Childs answered with an alley-oop dunk with 11.1 seconds to go, then Braun Hartfield missed a corner 3-point shot to end it.Haws had 10 assists for his second career double-double. Childs grabbed a game-high seven rebounds.Finn Sullivan scored 16 points to lead San Diego, which shot 50% from the floor. The Toreros have lost six of their last seven games.last_img read more

Utah State’s Justin Bean Named Mountain West Conference Player of the Week

first_img FacebookTwitterLinkedInEmailLOGAN, Utah-Monday, Utah State junior forward Justin Bean was named the Mountain West Conference’s men’s college basketball player of the week.Bean, who averages 11.3 points and 7.8 rebounds per game for the 18-7 (15-4 in MWC play) Aggies, avereaged 17 points and 11 rebounds per game this past week in wins over Wyoming (72-59) and Fresno State (57-51).Bean also averaged 2.5 steals and 1.5 assists per game against the Cowboys and Bulldogs while shooting just under 52 percent from the field (6-11) in the wins.Bean has helped the Aggies secure the No. 2 seed in this week’s Mountain West Conference tournament at Las Vegas.Utah State plays the winner of No. 7 UNLV/No. 10 Air Force in Thursday’s quarterfinals at 7:00 pm MST. March 8, 2021 /Sports News – Local Utah State’s Justin Bean Named Mountain West Conference Player of the Week Written bycenter_img Brad Jameslast_img read more

Chill wind across the property market

first_imgHome » News » Housing Market » Chill wind across the property market previous nextHousing MarketChill wind across the property marketCountrywide, Zoopla, Crest Nicholson, Persimmon and Berkeley all hit by falling share prices.The Negotiator26th July 20160660 Views Pessimism about house prices is blowing a chill wind through the stock market as UK’s leading builders – as well as Countrywide and Zoopla (ZPG) – saw their share prices dip.Monday’s FTSE 250 opened with Countrywide shares falling by 7.2 per cent to 233.7pence; ZPG fell by 2.2 per cent and Crest Nicholson fell by 1.3 per cent.The falls are not desperate, but they are an indication of the concerns about the stability of the housing market since the EU Referendum result. Richard Donnell (left) at Hometrack said, “It is still early days, and seasonal factors also need to be considered but the growth in new listings and slower sales points to slower price growth in the months ahead. This growth in supply reflects a mix of new homes filtering through from London’s expanded development pipeline, investors looking to take capital gains, or selling to de-leverage their investments following the reduction in tax relief on mortgage payments for buy-to let investors.”house prices stock market property market share prices July 26, 2016The NegotiatorWhat’s your opinion? Cancel replyYou must be logged in to post a comment.Please note: This is a site for professional discussion. Comments will carry your full name and company.This site uses Akismet to reduce spam. Learn how your comment data is processed.Related articles BREAKING: Evictions paperwork must now include ‘breathing space’ scheme details30th April 2021 City dwellers most satisfied with where they live30th April 2021 Hong Kong remains most expensive city to rent with London in 4th place30th April 2021last_img read more

Chancellor’s Stamp Duty giveaway only ‘modest’ boon for market, says Nationwide

first_imgThe recent Stamp Duty changes announced in last week’s Autumn Budget will have only a modest impact on demand, lender the Nationwide has revealed.Commenting within its monthly house price index published today, it says that in “many regions, first time buyers already paid little or no stamp duty as the price of the typical first time buyer property was below the previous threshold of £125,000”.Nationwide also says the Stamp Duty will benefit mostly first time buyers in London and the South East, and help sure up values for existing home owners in these areas of the UK.Its figures bear this out (see box, left). The Stamp Duty changes mean that in London, for example, 11% of first time buyers who would have previously paid on average £13,102 when they bought a property will now pay no tax, while in the North almost all first time buyers will now pay no tax, although until now they were only paying on average £100 in Stamp Duty.“Despite the enthusiastic reception given to the cut in Stamp Duty for first-time buyers announced in last week’s Budget, it’s too early to detect its impact in the increasingly stagnant picture painted by the Nationwide,” says says Jonathan Hopper, Managing Director of Garrington Property Finders (pictured, right).“Even then, no-one should expect the Chancellor’s Stamp Duty give-away to be a silver bullet. As the Nationwide’s analysis shows, outside London it will only affect a tiny minority of first-time buyers.“More importantly, stimulating demand at the bottom end of the market won’t help much if the market remains blocked at higher price points.“To function properly, the market relies on the whole chain working smoothly, with buyers at all levels able to move up the ladder.”Price risesNationwide’s November House Price Index also revealed that house prices rises slowed during November and the average now stands at £209,998. Prices have risen by 2.5% so far this year.“While house prices may be rising, the rate of actual price growth has been stalling, reflecting the market’s current shortage of affordable housing,” says Paresh Raja, CEO of bridging specialist MFS (pictured, left).“With inflation outpacing price growth, a significant number of prospective home buyers are not able to act on their property intentions.“In part, this explains why the Government has removed stamp duty for first time home buyers; alleviating some of the financial burden affecting entry-level investors so that more people are able to get their foot on the property ladder. It will be interesting to see how this affects property prices over the coming months.”Garrington Property Finders Paresh Raja Jonathan Hopper MFS Nationwide November 30, 2017Nigel LewisWhat’s your opinion? Cancel replyYou must be logged in to post a comment.Please note: This is a site for professional discussion. Comments will carry your full name and company.This site uses Akismet to reduce spam. Learn how your comment data is processed.Related articles BREAKING: Evictions paperwork must now include ‘breathing space’ scheme details30th April 2021 City dwellers most satisfied with where they live30th April 2021 Hong Kong remains most expensive city to rent with London in 4th place30th April 2021 Home » News » Chancellor’s Stamp Duty giveaway only ‘modest’ boon for market, says Nationwide previous nextChancellor’s Stamp Duty giveaway only ‘modest’ boon for market, says NationwideLeading lender sounds sceptical of claimed boost for first time buyers and the wider market to from Stamp Duty changes for first time buyers.Nigel Lewis30th November 201701,207 Viewslast_img read more

Fine & Country opes new office in Maresme

first_imgFine & Country has opened a new office in Maresme, Spain, to service the Barcelona coast, the surrounding coastal areas of Sant Andreu de Llanvaneres and the city of Mataro.Fine & Country’s new office has been established by Xavier Bourgeois, with a team of eight. Fine & Country Maresme is part of the Finques Bourgeois real estate company that has been assisting clients in Barcelona since 1950. Their knowledge of the real estate market.Xavier Bourgeois of Fine and Country Maresme says, “Our office has a wide catalogue of houses with special charm, villas with swimming pools, luxury villas, and mansions with large gardens and sea views and easy beach access. Buyers in Maresme are looking for excellence when they come to Spain, and Fine & Country Maresme intend to deliver just that.Maresme Spain Barcelona Fine & Country Spain December 27, 2017The NegotiatorWhat’s your opinion? Cancel replyYou must be logged in to post a comment.Please note: This is a site for professional discussion. Comments will carry your full name and company.This site uses Akismet to reduce spam. Learn how your comment data is processed.Related articles Letting agent fined £11,500 over unlicenced rent-to-rent HMO3rd May 2021 BREAKING: Evictions paperwork must now include ‘breathing space’ scheme details30th April 2021 City dwellers most satisfied with where they live30th April 2021 Home » News » Agencies & People » Fine & Country opes new office in Maresme previous nextAgencies & PeopleFine & Country opes new office in MaresmeThe Negotiator27th December 20170393 Viewslast_img read more