Moulting rates of Calanus helgolandicus: an inter-comparison of experimental methods

first_imgAn inter-comparison of three commonly reported methods for estimating the stage duration of copepods was made on Calanus helgolandicus from both wild and laboratory-reared populations. These three methods have not been compared previously in contemporaneous experiments. The methods were: (1) following the stage frequency of a laboratory-reared population over time, (2) sorting of individual species stages from the laboratory-reared population and from wild plankton samples, followed by incubation, and (3) sieve fractionating the wild plankton sample followed by incubation. We establish that estimates by these three methods made from the wild and laboratory-reared populations did not differ significantly. Handling of the animals did not affect estimates of moulting rate significantly, but there was a wide range in stage durations in identical copepodite stages which had experienced similar environmental conditions. We therefore suggest that the `Heinle’ method would be most applicable to use on populations with a clear cohort structure in areas not subjected to high rates of advection, and which experience saturating food conditions. The sorted cohort method would be appropriate to areas which were subject to high rates of advection and to a population which had prolonged recruitment, but because this is a labour intensive method the sieved cohort method may be more appropriate when the plankton hauls are dominated by a particular species of copepod.last_img

Lakers’ Galle, Royer shine at state tennis qualifier

first_imgSo the state tournament berth rode on the third-place match between Galle and Royer and the top-seeded Fayetteville-Manlius duo of Anna Manta and Phoebe Wang, who had lost to West Genesee’s Angelina Llanos and Katie Viau.Having dropped the first set 6-3, Galle and Royer improved in the second set and nearly took it to a tie-breaker, but Manta and Wang held on, 7-5, and to join the West Genesee and J-D pairs in the state tournament.In singles, Christian Brothers Academy’s duo of Gieselle Vlassis and Grace DelPino advanced to the state tournament, joined by Utica-Notre Dame’s Ellen Lyga.Share this:FacebookTwitterLinkedInRedditComment on this Story Already with a Section III Division III title in their possession, Cazenovia girls tennis players Alex Galle and Nina Royer went after much more in last week’s sectional state qualifying tournament at Drumlins.Sixteen doubles team entered the tournament, four from each of the divisions. Only the top three finishers would advance to this weekend’s New York State Public High School Athletic Association championships in Latham.The opening round on Tuesday had Galle and Royer against Christian Brothers Academy’s Grace Catalano and Aubrey Mills. Both sets were close, but the Lakers’ pair emerged with a 6-4, 7-5 victory. A couple of hours later, Galle and Royer met Oneida’s Mattie Hicks and Sydney Lusher in the quarterfinals. This one was not as close, with the Cazenovia duo needing just two sets to win 6-2, 6-4.Having advanced to Thursday’s semifinals, Galle and Royer had two chances to earn the match victory it needed to reach the state tournament.Up against Jamesville-DeWitt’s Mona Farah and Tara Pollock in that semifinal round, Galle and Royer played well early, but Farah and Pollock were better, prevailing 6-3, 6-1.center_img Tags: CazenoviaTennislast_img read more

Newborn takes 1st steps as 5-star freshman at Syracuse

first_img Published on January 28, 2014 at 2:03 am Freshman Rhiann Newborn knew that in order to fulfill her dream of becoming a professional tennis player, she must work through the confines of being home-schooled during high school.Her daily routine began with a 7 a.m. wake-up call and a workout in a gym until 8:30. Then from 8:45 until noon, she would strictly focus on her schoolwork.The next six hours consisted of eating lunch, working on more schoolwork and making time for tennis practice. Once she returned home from practice, Newborn spent the rest of the night working on homework until her day ended at 11 p.m.Her father, Darryl Newborn, said this lifestyle was essential in her development a student-athlete. Newborn is now a freshman at Syracuse and has started in singles and doubles in each of the team’s first three matches. Her past as a home-schooled tennis player has prepared her well to acclimate to college lifestyle and academics.“Tennis breeds homeschool kids,” Darryl Newborn said. “The level of kids being recruited to major D-I colleges these days are not too far from having the talent to play professional tennis.”AdvertisementThis is placeholder textNewborn was ranked as Texas’ top player from the time she was 12-years-old until she graduated high school. Her parents realized that the only way to enhance her development would be to travel across the country and play in national tournaments.Her schedule would change dramatically when it was time to perform in competitions. Without this structured education, Newborn would not have succeeded academically.“The pro tournaments started on Sunday and would finish next Sunday,” she said. “So if I made it far into the draw and I wasn’t home-schooled, I would’ve been missing a lot of school.”Newborn became accustomed to traveling because it required a large portion of her time each day. It took her approximately 45 minutes to an hour for traveling to the nearest practice facility from her home in Houston.When traveling to matches, Newborn spent her time working on schoolwork.“On our way to hotels, Rhiann was reading books in the car and getting homework done,” Darryl Newborn said.The decision by her parents to homeschool their daughter paid off when Syracuse head coach Luke Jensen began recruiting the five-star prospect.While Newborn garnered interest from Texas, Texas A&M and other schools in the state, Syracuse was a program that would help her meet her academic and athletic goals.Her parents received that vibe when given the opportunity to meet with Jensen about their daughter’s transition from being home-schooled to taking on a vigorous college workload.“When we spoke with coach Jensen, he explained everything to us”, Darryl Newborn said. “We were very comfortable with him.”Newborn adjusted to a college workload and managed her time. At first, the transition from a home-school education to a college schedule loomed large, as Newborn adapted to waking up for school and managing to get to class on time.She joined a program where her head coach would ensure that she would pay close attention to her studies. Jensen acknowledged the obstacles of studying in college, but said it can be overcome with hard work.“Like any freshman, being away from home was difficult. Getting used to the academic side is always very difficult,” Jensen said. “Those are just challenges and we really stress that.“To get a degree here, it’s because you actually earned it. No one’s giving you anything.”Newborn faced her fair share of obstacles when transitioning to a college lifestyle, and shows gratitude to the people that put her in an environment that will lead her to success.“I do have to send a huge thanks out to my family and all my coaches who have helped me through the years with my tennis and school to get me to where I am at now.” Comments Facebook Twitter Google+last_img read more

McClean faces a race to be fit

first_imgPhoto © Pixabay James McClean faces a race to be fit for Ireland’s upcoming World Cup Qualifiers against Georgia and Serbia in early September.The winger suffered a bruised bone in his knee in West Brom’s pre-season friendly against Bristol Rovers on Saturday.The Baggies say he’ll mess their final pre-season games against Port Vale and Deportivo La Coruna and will be assessed again ahead of the start of the Premier League season.last_img