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The diet of toothfish species Dissostichus eleginoides and Dissostichus mawsoni with overlapping distributions

first_imgThe diets of Antarctic toothfish Dissostichus mawsoni and Patagonian toothfish Dissostichus eleginoides were examined around the South Sandwich Islands in the Southern Ocean, one of few regions with overlapping populations of the two species. Despite large differences in the proportion of stomachs containing prey (76.2% of D. mawsoni compared to 7.2% of D. eleginoides), diet composition was broadly similar (Schoener overlap index of 74.4% based on prey mass) with finfishes (particularly macrourids and muraenolepidids) and cephalopods (mainly Kondakovia longimana) comprising > 90% of the prey mass of both species. Predation rates of the main fish prey, as mean counts per stomach sampled, were spatially correlated with their relative abundance around the islands derived from fishery by-catch data, suggesting a general lack of prey selectivity. This study supports the view that bathyal Dissostichus are opportunistic carnivores and finds that D. mawsoni and D. eleginoides occupy a similar trophic niche and are likely to compete for prey in regions where both are distributed. The large increase in rate of prey occurrence and size of prey in D. mawsoni stomachs relative to D. eleginoides suggests, however, species differences in feeding behaviour, which may reflect the increased metabolic demands of a cold-water adapted physiology. [Correction added after online publication 13 June 2011: spelling of species name corrected] (C) 2011 The Authors Journal of Fish Biology (C) 2011 The Fisheries Society of the British Isleslast_img read more

Watch The All-Star Tribute To Bernie Worrell Lay Down The “Mothership Connection” Funk

first_imgThis past weekend marked the transplanted return of Bear Creek, which opened up as the Bear Creek Bayou Festival at Mardi Gras World in New Orleans, LA. With thousands assembled for the exciting festival, many flocked to the Howlin’ Wolf for some late night fun, in the form of a funky tribute to the late great Bernie Worrell.Worrell sadly passed away due to cancer earlier this year, and an all-star crew of musicians came out to perform in his honor. The full lineup for the show included Ivan Neville (Dumpstaphunk), Ian Neville (Dumpstaphunk), Nick Daniels (Dumpstaphunk), Nigel Hall (Lettuce), Nikki Glaspie (The Nth Power), Ryan Zoidis (Lettuce), Eric “Benny” Bloom (Lettuce), Jen Hartswick (Trey Anastasio Band), and TJ Norris.The musicians took turns sharing stories about the late Worrell, only adding to the emotional significance of the night. It was the music that shined through, as the band brought out countless classics from Worrell’s catalog. Among the many played was “Mothership Connection,” a P-Funk regular that featured Worrell’s iconic synth playing.Fortunately, our own Rex Thomson was on hand to capture this moment. Watch this all-star lineup’s great version of “Mothership Connection,” streaming below.For fans of Nikki Glaspie, Eric “Benny” Bloom, and Ryan Zoidis, be sure not to miss them perform a special tribute to Earth, Wind & Fire alongside Oteil Burbridge, Kofi Burbridge, Natalie Cressman, Skerik, and more at the second annual Brooklyn Comes Alive, a multi-venue music festival with over 50 artists performing throughout Brooklyn on October 22nd. All the information you need to know is located right here.last_img read more