Fecundity of marine planktonic copepods: global rates and patterns in relation to chlorophyll a, temperature and body weight

first_imgGlobal rates and patterns of fecundity in marine epipelagic copepods were studied as a function of temperature, body weight of the female and concentration of chlorophyll a. We divided data into 3 groups: broadcast spawners, sac spawners (including calanoids, cyclopoids and harpacticoids) and poecilostomatoids; although the latter are sac spawners, they were treated separately, but data were too sparse to examine patterns. Fecundity was positively correlated with temperature and body weight in both broadcast and sac spawners. Michaelis-Menten relationships revealed that fecundity rates are significantly related to chlorophyll a (chl a) concentration for broadcasters, but not so for sac spawners. Broadcasting copepods have a maximum fecundity (f(max)) of 47 eggs female(-1) d(-1), with a half-saturation coefficient (K-m) of 2.4 mug chl a l(-1), for a body weight of 10 mugC individual(-1), when all data are adjusted to 15degreesC. In contrast, fecundity rates in sac spawners are ca. 5 eggs female(-1) d(-1). Of the broadcaster genera examined, Centropages spp. has the highest f(max) at 71 eggs female(-1) d(-1) (data corrected to 15degreesC), and Paracalanus spp. the lowest f(max) at 25 eggs female(-1) d(-1). In the sac-spawning Pseudocalanus spp. we found a significant relationship between fecundity and chl a, with an f(max) of only 7.8 eggs female(-1) d(-1), while for Oithona spp. no significant relationship was evident. By comparing in situ with laboratory food-saturated rates we were able to assess the degree to which fecundity is food-limited in the natural environment. The degree of food limitation increases with increasing temperature in sac spawners; at low temperatures (similar to5degreesC) in situ rates are similar to laboratory food-saturated rates, but at 25degreesC rates are 23% of laboratory food-saturation values. In nature, increasing food limitation with increasing temperature may be the result of greater food requirements to balance respiration demands, i.e. decreasing net growth efficiency in warmer situations. It may also be due to lower availability of suitable food in terms of quality or quantity with increasing temperature, possibly as a result of increased dominance of smaller phytoplankton size fractions (e.g. picoplankton) in warm waters. Food limitation in the environment may be more severe than these comparisons suggest, as laboratory food-saturated fecundity rates in broadcasters may be as low as 36% of the in situ maximum rates (fmax rates).last_img read more

Sporting KC, Real Salt Lake play to 1-1 draw

first_img Tags: MLS/Real Sale Lake/Soccer FacebookTwitterLinkedInEmailKANSAS CITY, Kan. (AP) — Ike Opara scored the tying goal in the 52nd minute and Sporting Kansas City played Real Salt Lake to a 1-1 draw Sunday.Sporting K.C, (15-8-7) is two points behind first-place FC Dallas in the Western Conference. Real Salt Lake (13-11-7) sits two points shy of fourth-place Portland — with the teams facing off twice in the final three regular-season games.Opara scored his third goal of the season on a leaping header of Johnny Russell’s corner kick.Corey Baird gave RSL the lead in the ninth minute. He ran past the defense for Jefferson Savarino’s through ball and scored his first goal in over a month.RSL goalkeeper Nick Rimando came out of his area to deny a breakaway attempt in the 81st and he made a kick save of Diego Rubio’s open shot in the 87th. Associated Press Written by September 30, 2018 /Sports News – Local Sporting KC, Real Salt Lake play to 1-1 drawlast_img read more

Jimmy Butler free agency rumors: Lakers pushing for meeting with star

first_imgThe Lakers are making a strong push for Jimmy Butler. The New York Times reported just hours before free agency begins that the Lakers are pushing for a pitch meeting with Butler. The report notes that Los Angeles is making the “latest aggressive” bid to try and land the star forward as it will have to try and entice Butler away from signing with the Heat.  Related News NBA free agency rumors: Jazz showing ‘significant’ interest in Bojan Bogdanovic Jimmy Butler meets with Heat officials at 6:01 PM ET tonight but continues to draw interest from a number of suitors, league sources say, with the Lakers making the latest aggressive bid. Lakers officials, I’m told, are pushing for a pitch meeting with Butler— Marc Stein (@TheSteinLine) June 30, 2019The Associated Press reported earlier this week that Butler is “very interested” in playing with Miami and he will meet with the franchise Sunday, though that would likely have to be a  a sign-and-trade scenario, similar to the type of deal that has been speculated between Butler and the Rockets. He’s also expected to meet with Houston early next week. “Hopefully I’ll get a max contract anywhere I choose to go,” Butler told reporters about his free agency last month. “You always want to be able to win, I think that’s key for sure. You’re looking at coaches, you’re looking at the city. There’s a lot that goes into it.” Butler started the season with the Timberwolves before he was traded to the 76ers in mid-November. In 55 regular-season games with Philadelphia, Butler averaged 18.2 points and 5.3 rebounds while shooting 33.8% from 3-point range. He played an integral role in helping the 76ers reach the Eastern Conference semifinals before they fell to the Raptors in seven games.As expected, Butler declined his player option that was worth more than $19 million for the 2019-20 season. NBA free agency rumors: Jonas Valanciunas returns to Grizzlies on 3-year, $45M deal NBA free agency rumors: 76ers could make major play for Malcolm Brogdonlast_img read more

a month agoEx-Real Madrid GM Mijatovic: Zidane doesn’t know what to do

first_imgEx-Real Madrid GM Mijatovic: Zidane doesn’t know what to doby Carlos Volcanoa month agoSend to a friendShare the loveFormer Real Madrid GM Pedja Mijatovic has questioned whether Zinedine Zidane is capable of leading the club out of it’s slump.Mijatovic was reacting to their 3-0 Champions League humbling at PSG.He said, “I did not expect such a game. I expected to see another game, I was very confident and I hope that Madrid will present itself in a better way in a competition in which it has made history. “PSG has been better in every way. It is a worry. The season looks like last year.”From minute one, Madrid was not involved in the game. When a team lets you play they all seem like phenomena to you. Madrid has to improve a lot. They have to worry and look for solutions. I don’t see Zidane finding solutions or helping the team to improve.” About the authorCarlos VolcanoShare the loveHave your saylast_img read more

Minister Paulwell to Report on Energy Solution for Alpart and Kirkvine

first_imgMinister of Science, Technology, Energy and Mining, Hon. Phillip Paulwell, is to report on an energy solution to facilitate the re-opening of the Alpart and Kirkvine bauxite plants, when he speaks in the 2013/14 Sectoral Debate.The Government has been engaged in months of intense negotiations with Russian-based aluminium company, UC Rusal, for the resumption of operations at the facilities, which closed in 2009.Addressing a sitting of the Standing Finance Committee last week, Minister Paulwell said that the high cost of energy is a major issue affecting the re-opening of the plants.While UC Rusal is investing US $100 million in a coal-fired electricity generating system for Ewarton, the Minister said “they are maintaining that gas is the energy solution for both ALPART and Kirkvine and I am to report on that fully in the Sectoral Debate”.The Minister informed that the plants are being maintained, and are ready for operation. “In fact, I did a tour recently, just to satisfy my mind that the possibility exists for them to be re-opened within a short timeframe,” he stated.A downturn in the global aluminium market forced UC Rusal to cease its operations at Kirkvine, Ewarton and Alpart in 2009. The Ewarton refinery, located in St. Catherine, was re-opened in July 2010 and the Government, in 2012, as able to secure a deal with UC Rusal, to maintain operations at the refinery and save the 600 local jobs at the facility.As part of the agreement, Ewarton, as of 2015, will become a base producer of alumina for UC Rusal’s aluminium smelters overseas, with the Kirkvine and Alpart refineries, located in Manchester and St. Elizabeth, respectively, to be so designated, once they resume production.This means that Jamaica will no longer be regarded as a “swing location” and so vulnerable for closure during times of recession.UC Rusal entered Jamaica’s bauxite and alumina sector in 2007. The company has 93 per cent stake in WINDALCO, which owns and operates Ewarton Works and the Kirkvine Alumina Refinery, and has 100 per cent ownership of the Alpart refinery.By Latonya Linon, JIS Reporterlast_img read more

2.95 Million Tourists Between January and August

first_imgStory Highlights Minister of Tourism, Hon. Edmund Bartlett, says this represents a 4.7 per cent increase when compared to the corresponding period last year. Providing an official update on the performance of the sector at the Ministry’s New Kingston offices on September 5, Mr. Bartlett said the sector continues to perform well amidst national, regional and global challenges. Provisional figures from the Jamaica Tourist Board (JTB) show that between January and August 2018, a total of 2.95 million tourists visited Jamaica.Minister of Tourism, Hon. Edmund Bartlett, says this represents a 4.7 per cent increase when compared to the corresponding period last year.Providing an official update on the performance of the sector at the Ministry’s New Kingston offices on September 5, Mr. Bartlett said the sector continues to perform well amidst national, regional and global challenges.He said the figures indicate that the sector is on target to outperform the benchmark target of five per cent growth in five years.“Last year broke all of that, because we got 12 per cent. To grow on last year is a phenomenal achievement and to be growing at the five per cent that we project is even more phenomenal,” the Minister said.He noted that preliminary gross foreign exchange earnings for the first eight months of 2018 were approximately US$2.2 billion.“That means you are trending well ahead of the US$3-billion mark for the end of this calendar year. If we continue with these robust arrival figures to year end, then for the third consecutive year, the growth of Jamaica’s tourism sector would have exceeded the projected five per cent annual growth,” he said.Meanwhile, the Minister pointed out that the figures indicate the country experienced the “best summer” performance for the period May to August 2018.Mr. Bartlett informed that the provisional estimates showed stopover arrivals up by six per cent, when compared to the corresponding period last year.“That is 884,324 visitors compared to the 834,292 in 2017. These figures contributed to total visitor arrivals of 1,312,494, which was a 4.4 per cent increase over the same period last year,” the Minister said.Mr. Bartlett emphasised that this augurs well for the country’s high season, which begins in December. Provisional figures from the Jamaica Tourist Board (JTB) show that between January and August 2018, a total of 2.95 million tourists visited Jamaica.last_img read more

Split personalities AllAmerican catcher uses humor pranks to keep team loose

Sam Marder is Ohio State’s all-time home run, RBI and walks leader, but she might be Ohio State’s all-time goof ball as well.Her jabbing jokes, ribbon dancing routines and affable personality do not help her hit home runs, but it is apparent she doesn’t need help with that.“I think the great part about this team is that we have so much fun with each other,” Marder said. “They all came to my ribbon dancing routine and we are always playing jokes on each other. We are a fun and relaxed team.”Off the field, Marder encourages some friendly pranks.“Megan (Miller) and I were roommates one weekend on the road and that was not fair,” she said. “We filled a bucket of ice and played a joke on freshman (Megan) Coletta. When she opened the door she got showered with all this ice. Then we ran away.”Though this two-time captain and two-time All-American loves to entertain her teammates, she acknowledges that what you see is not always what you get. “I definitely have two personalities and I like to compare myself to Beyonce calling herself Sasha Fierce,” Marder said. “While off the field I am really light-hearted and joking around.  On the field I am very focused, intense and driven. That is the only way I can play.”Coach Linda Kalafatis acknowledges Marder’s split personality.“She is smart, passionate, creative, weird and goofy,” Kalafatis said. “But, there is an intensity and passion on the field that you don’t necessarily know of off the field.”When co-captain Courtney Pruner was asked to talk about Marder’s personality, she muttered, “Oh God.”Pruner spoke about Marder’s humble personality, but sometimes she can take it too far.“Anytime we get the chance to make fun of her we can,” she said.When it comes to softball, Marder likes to mesh different parts of her personality to guide the team to success, part of her job as captain.“I try to lead by example,” Marder said. “It is important to make sure our team is loose and relaxed, while at the same time, mentally prepared to play.”Marder is not one to stray away from who she is. People don’t have to be at a softball practice to catch a glimpse of the lovable goof ball.When the team plays on the Big Ten Network, she claims she is chosen to read the introductions because she is the most attractive on the team.In addition, Marder represented the softball team by performing rhythmic gymnastics, otherwise known as ribbon dancing, for Buckeyes Got Talent.“The nerve to get up there and be that silly is remarkable,” Kalafatis said.The song she chose was Miley Cyrus’ “The Climb.”While the regional tournament approaches, the team will begin its ascent to its ultimate goal, Oklahoma City.The Buckeyes will host the Kentucky Wildcats Friday at 7:30 p.m. read more

Barcelona puts price on striker wanted by West Ham

first_imgThe English side would have to pay up to 3 million Pounds if they want Paco Alcácer to join them this season; would only be a loanPublished by the Daily Star in the United Kingdom, there have been reports that Spanish powerhouse Barcelona have put a price on striker Paco Alcácer if he wants to join the Premier League.The forward could end up costing up to 3 million Pounds to English club West Ham United, but will only join the competition on a loan.The 25-years-old has been a surplus in Barcelona, playing only 37 times in La Liga in over two years at Barca.David Villa, SpainQuiz: How much do you know about David Villa? Boro Tanchev – September 14, 2019 Time to test your knowledge about Spanish legendary forward David Villa.His goal scoring abilities are not playing in his favor either.In 37 occasions on the field, the player has only scored ten times during the Spanish competition, with four more goals coming from the Spanish Cup and only once in the Champions League.But it seems the ex-Valencia and ex-Getafe athlete will only exit Barcelona if West Ham pays 3 million Pounds for his loan, something the English club might not be too keen on doing.last_img read more