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Kinematics of benthic suction feeding in Callichthyidae and Mochokidae, with functional implications for the evolution of food scraping in catfishes

(2009) JOURNAL OF EXPERIMENTAL BIOLOGY. 212(1). p.116-125
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Organization
Abstract
Food scraping has independently evolved twice from suction feeding in the evolution of catfishes: within neotropical Loricarioidea and paleotropical Mochokidae. To gain insight in the evolutionary transitions associated with the evolution towards scraping, we analyzed prey capture kinematics in two species of benthic suction feeders which belong to taxa that are closely related to the scraper lineages ( respectively, Corydoras splendens and Synodontis multipunctatus), and compared it to prey capture in a more distantly related, generalist suction feeder (Clarias gariepinus). Simultaneous ventral and lateral view highspeed videos were recorded to quantify the movements of the lower jaw, hyoid, pectoral girdle and neurocranium. Additionally, ellipse modeling was applied to relate head shape differences to buccal expansion kinematics. Similarly to what has been observed in scrapers, rotations of the neurocranium are minimal in the benthic suction feeders, and may consequently have facilitated the evolution of a scraping feeding mechanism. The hypothesis that fish with a more laterally compressed head rely more heavily on lateral expansion of the buccal cavity to generate suction, was confirmed in our sample of catfish species. Since an important contribution of lateral expansion of the head to suction may avoid the need for a strong, ventral depression of the mouth floor during feeding, we hypothesized that this may have allowed a closer association with the substrate in the ancestors of scrapers. However, our hypothesis was not supported by an ancestral state reconstruction, which suggests that scraping probably evolved from sub-terminal mouthed ancestors with dorsoventrally flattened heads.
Keywords
catfish, prey capture, buccal expansion, suction, hyoid, CF. Triradiatus Loricariidae, phylogenetic analysis, clariid catfishes, neotropical catfish, suckermouth, teleostei, feeding, siluriformes, performance, mechanisms

Citation

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Chicago
Van Wassenbergh, Sam, Tim Lieben, Anthony Herrel, Frank Huysentruyt, Tom Geerinckx, Dominique Adriaens, and Peter Aerts. 2009. “Kinematics of Benthic Suction Feeding in Callichthyidae and Mochokidae, with Functional Implications for the Evolution of Food Scraping in Catfishes.” Journal of Experimental Biology 212 (1): 116–125.
APA
Van Wassenbergh, Sam, Lieben, T., Herrel, A., Huysentruyt, F., Geerinckx, T., Adriaens, D., & Aerts, P. (2009). Kinematics of benthic suction feeding in Callichthyidae and Mochokidae, with functional implications for the evolution of food scraping in catfishes. JOURNAL OF EXPERIMENTAL BIOLOGY, 212(1), 116–125.
Vancouver
1.
Van Wassenbergh S, Lieben T, Herrel A, Huysentruyt F, Geerinckx T, Adriaens D, et al. Kinematics of benthic suction feeding in Callichthyidae and Mochokidae, with functional implications for the evolution of food scraping in catfishes. JOURNAL OF EXPERIMENTAL BIOLOGY. BIDDER BUILDING CAMBRIDGE COMMERCIAL PARK COWLEY RD, CAMBRIDGE CB4 4DL, CAMBS, ENGLAND: COMPANY OF BIOLOGISTS LTD; 2009;212(1):116–25.
MLA
Van Wassenbergh, Sam, Tim Lieben, Anthony Herrel, et al. “Kinematics of Benthic Suction Feeding in Callichthyidae and Mochokidae, with Functional Implications for the Evolution of Food Scraping in Catfishes.” JOURNAL OF EXPERIMENTAL BIOLOGY 212.1 (2009): 116–125. Print.
@article{687472,
  abstract     = {Food scraping has independently evolved twice from suction feeding in the evolution of catfishes: within neotropical Loricarioidea and paleotropical Mochokidae. To gain insight in the evolutionary transitions associated with the evolution towards scraping, we analyzed prey capture kinematics in two species of benthic suction feeders which belong to taxa that are closely related to the scraper lineages ( respectively, Corydoras splendens and Synodontis multipunctatus), and compared it to prey capture in a more distantly related, generalist suction feeder (Clarias gariepinus). Simultaneous ventral and lateral view highspeed videos were recorded to quantify the movements of the lower jaw, hyoid, pectoral girdle and neurocranium. Additionally, ellipse modeling was applied to relate head shape differences to buccal expansion kinematics. Similarly to what has been observed in scrapers, rotations of the neurocranium are minimal in the benthic suction feeders, and may consequently have facilitated the evolution of a scraping feeding mechanism. The hypothesis that fish with a more laterally compressed head rely more heavily on lateral expansion of the buccal cavity to generate suction, was confirmed in our sample of catfish species. Since an important contribution of lateral expansion of the head to suction may avoid the need for a strong, ventral depression of the mouth floor during feeding, we hypothesized that this may have allowed a closer association with the substrate in the ancestors of scrapers. However, our hypothesis was not supported by an ancestral state reconstruction, which suggests that scraping probably evolved from sub-terminal mouthed ancestors with dorsoventrally flattened heads.},
  author       = {Van Wassenbergh, Sam and Lieben, Tim and Herrel, Anthony and Huysentruyt, Frank and Geerinckx, Tom and Adriaens, Dominique and Aerts, Peter},
  issn         = {0022-0949},
  journal      = {JOURNAL OF EXPERIMENTAL BIOLOGY},
  keyword      = {catfish,prey capture,buccal expansion,suction,hyoid,CF. Triradiatus Loricariidae,phylogenetic analysis,clariid catfishes,neotropical catfish,suckermouth,teleostei,feeding,siluriformes,performance,mechanisms},
  language     = {eng},
  number       = {1},
  pages        = {116--125},
  publisher    = {COMPANY OF BIOLOGISTS LTD},
  title        = {Kinematics of benthic suction feeding in Callichthyidae and Mochokidae, with functional implications for the evolution of food scraping in catfishes},
  url          = {http://dx.doi.org/10.1242/jeb.023929},
  volume       = {212},
  year         = {2009},
}

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