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Meng F, Yin X, Zhang T, Zhao C, Xue X, Xia X, Zhu X, Duan Z, Liu B, Liu Y. The first determination and analysis of the complete mitochondrial genome of Ancistrus temmincki (Siluriformes: Loricariidae). MITOCHONDRIAL DNA PART B-RESOURCES 2021; 6:1583-1585. [PMID: 34027063 PMCID: PMC8110184 DOI: 10.1080/23802359.2020.1866446] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
In order to fully comprehend the evolution and kinship of fishes in the family of Loricariidae, the complete mitochondrial genome of the Loricariidae fish Ancistrus temmincki was firstly characterized in the present study. The whole mitogenome was 16,657 bp in size and consisted of 13 protein-coding genes, 22 tRNAs, 2 rRNAs genes, a control region and origin of light-strand replication. The proportion of coding sequences with a total length of 11,473 bp was 68.88%, which encoded 3,813 amino acids. The genome composition was highly A + T biased (56.29%), and exhibited AT-skew (0.0661) and a negative GC-skew (–0.2740). All protein-coding genes were started with ATG except for GTG in CO1, while stopped with the standard TAN codons or a single T. The control region (D-loop) ranging from 15,635 bp to 16,657 bp was 1023 bp in size. Until now, there is hardly any studies on the complete mitochondrial sequence in the genus of Ancistrus, phylogenetic analysis showed that A. temmincki was most closely related to Ancistrus cryptophthalmus in the genus of Ancistrus. The complete mitochondrial genome sequence has provided a new insight into the taxonomic classification, and a more complex picture of the species diversity within the family of Loricariidae.
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Affiliation(s)
- Fang Meng
- National Engineering Research Center for Marine Aquaculture, Zhejiang Ocean University, Zhoushan, China.,National Engineering Laboratory of Marine Germplasm Resources Exploration and Utilization, Marine Science and Technology College, Zhejiang Ocean University, Zhoushan, China
| | - Xiaolong Yin
- Zhoushan Fisheries Research Institute of Zhejiang Province, Zhoushan, China
| | - Tao Zhang
- Zhejiang Province Key Lab of Mariculture and Enhancement, Marine Fisheries Research Institute of Zhejiang, Zhoushan, China
| | - Chunyan Zhao
- School of Marine Science and Engineering, Qingdao Agricultural University, 266109, Qingdao, China
| | - Xianglong Xue
- National Engineering Research Center for Marine Aquaculture, Zhejiang Ocean University, Zhoushan, China.,National Engineering Laboratory of Marine Germplasm Resources Exploration and Utilization, Marine Science and Technology College, Zhejiang Ocean University, Zhoushan, China
| | - Xianglong Xia
- National Engineering Research Center for Marine Aquaculture, Zhejiang Ocean University, Zhoushan, China.,National Engineering Laboratory of Marine Germplasm Resources Exploration and Utilization, Marine Science and Technology College, Zhejiang Ocean University, Zhoushan, China
| | - Xintao Zhu
- National Engineering Research Center for Marine Aquaculture, Zhejiang Ocean University, Zhoushan, China.,National Engineering Laboratory of Marine Germplasm Resources Exploration and Utilization, Marine Science and Technology College, Zhejiang Ocean University, Zhoushan, China
| | - Zaixian Duan
- National Engineering Research Center for Marine Aquaculture, Zhejiang Ocean University, Zhoushan, China.,National Engineering Laboratory of Marine Germplasm Resources Exploration and Utilization, Marine Science and Technology College, Zhejiang Ocean University, Zhoushan, China
| | - Bingjian Liu
- National Engineering Research Center for Marine Aquaculture, Zhejiang Ocean University, Zhoushan, China.,National Engineering Laboratory of Marine Germplasm Resources Exploration and Utilization, Marine Science and Technology College, Zhejiang Ocean University, Zhoushan, China
| | - Yifan Liu
- National Engineering Research Center for Marine Aquaculture, Zhejiang Ocean University, Zhoushan, China.,National Engineering Laboratory of Marine Germplasm Resources Exploration and Utilization, Marine Science and Technology College, Zhejiang Ocean University, Zhoushan, China
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Urbano-Bonilla A, Ballen GA. A new species of Chaetostoma (Siluriformes: Loricariidae) from the Orinoco basin with comments on Amazonian species of the genus in Colombia. JOURNAL OF FISH BIOLOGY 2021; 98:1091-1104. [PMID: 33277920 DOI: 10.1111/jfb.14640] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 11/23/2020] [Accepted: 12/03/2020] [Indexed: 06/12/2023]
Abstract
Chaetostoma chimu sp. nov. is described from 119 specimens collected in the Andean foothills of the Orinoco River in Colombia. The new species can be distinguished from congeners by a combination of characters, including shape of cheek odontodes, presence of a supraoccipital excrescence, sexual dimorphism characters and colour pattern. In addition, this species can be distinguished from the sympatric and geographically close congeners of the Orinoco that have curved cheek odontodes (i.e., Chaetostoma anale, Chaetostoma formosae and Chaetostoma joropo), by presenting a generally larger orbital diameter and interorbital distance, details of sexual dimorphism and colour pattern. The type locality of specimens collected by Kjell von Sneidern in the mid-twentieth century in the Colombian Amazon is also clarified. Chaetostoma alternifasciatum and Chaetostoma vagum are proposed as junior synonyms of C. anale. An identification key for the species of Chaetostoma from cis-Andean drainages in Colombia is provided. The new species is herein categorized as Vulnerable (Vu) B1a (i, iii), following the IUCN criteria.
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Affiliation(s)
- Alexander Urbano-Bonilla
- Laboratorio de Ictiología, Departamento de Biología, Facultad de Ciencias, Pontificia Universidad Javeriana, Bogotá, Colombia
| | - Gustavo A Ballen
- Museu de Zoologia da Universidade de São Paulo, São Paulo, Brazil
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Lujan NK, Armbruster JW, Werneke DC, Teixeira TF, Lovejoy NR. Phylogeny and biogeography of the Brazilian–Guiana Shield endemic Corymbophanes clade of armoured catfishes (Loricariidae). Zool J Linn Soc 2019. [DOI: 10.1093/zoolinnean/zlz090] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Abstract
Numerous rivers, interrupted by large waterfalls and extensive rapids, drain the geologically ancient Guiana Shield Highlands. We describe a new armoured catfish genus and two new species endemic to the upper Ireng and Kuribrong rivers, respective tributaries of the Amazon and Essequibo basins in western Guiana. Corymbophanes ameliae sp. nov. is distinguished by having vermiculations on the abdomen, bands on the caudal fin, the anal fin i,5 and narrow caudal peduncle. Yaluwak primus gen. & sp. nov. is distinguished by having evertible cheek odontodes, a plated snout, a tall caudal peduncle and absence of adipose fin and iris operculum. We present a new molecular phylogenetic analysis inclusive of these and several related genera that suggests that the Corymbophanes clade (Araichthys, Corymbophanes, Cryptancistrus, Guianancistrus, Hopliancistrus and Yaluwak) originated in the Guiana Shield with secondary dispersal to the Brazilian Shield. Within the Guiana Shield, relationships among Corymbophanes and Yaluwak are consistent with geodispersal between drainages via headwater capture, although an uplift-mediated relictual distribution cannot be ruled out. ND2 haplotype structure among C. ameliae populations suggests that ichthyofaunal diversity on the Guiana Shield escarpment is shaped not only by inter-, but also intrafluvial barriers to gene flow.
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Affiliation(s)
- Nathan K Lujan
- Department of Ichthyology, American Museum of Natural History, New York, NY USA
- Department of Biological Sciences, University of Toronto Scarborough, Toronto, Ontario, Canada
| | | | - David C Werneke
- Department of Biological Sciences, Auburn University, Auburn, Alabama, USA
| | - Túlio Franco Teixeira
- Programa de Pós-graduação em Biologia de Vertebrados, Pontifícia Universidade Católica de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
- Museu de Zoologia da Universidade de São Paulo, São Paulo, SP, Brazil
| | - Nathan R Lovejoy
- Department of Biological Sciences, University of Toronto Scarborough, Toronto, Ontario, Canada
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Armbruster JW, Greene L, Lujan NK. Using Morphology to Test DNA-Based Phylogenetic Relationships within the Guiana Shield Catfish Tribe Lithoxini (Siluriformes: Loricariidae). COPEIA 2018. [DOI: 10.1643/ci-18-121] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Lujan NK, Armbruster JW, Lovejoy NR. Multilocus phylogeny, diagnosis and generic revision of the Guiana Shield endemic suckermouth armoured catfish tribe Lithoxini (Loricariidae: Hypostominae). Zool J Linn Soc 2018. [DOI: 10.1093/zoolinnean/zly025] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Affiliation(s)
- Nathan K Lujan
- Department of Biological Sciences, University of Toronto Scarborough, Toronto, Ontario, Canada
- Department of Natural History, Royal Ontario Museum, 100 Queen’s Park, Toronto, Ontario, Canada
| | | | - Nathan R Lovejoy
- Department of Biological Sciences, University of Toronto Scarborough, Toronto, Ontario, Canada
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Nordin I, Ibrahim N, Ahmad S, Hamidin N, Dahalan F, Shukor MA. Endosulfan Toxicity to Anabas testudineus and Histopathological Changes on Vital Organs. E3S WEB OF CONFERENCES 2018; 34:02055. [DOI: 10.1051/e3sconf/20183402055] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
The toxicity of endosulfan, an organochlorine type insecticide to a commonly consumed freshwater fish species, A. testudineus (40.68±9.03 g; 13.49±0.99 cm), was investigated under static conditions. The nominal endosulfan concentrations ranging from 10 to 80 μg/L subjected to the fish population results in 96-hour median lethal concentration, LC50, of 35.2±3.99 μg/L. The toxicity is a function of both endosulfan concentration and exposure time (p>0.05). Histopathological analysis on vital organs exposed to sublethal concentrations indicates that structural changes started at sublethal dose and the effects aggravated with increasing endosulfan concentration. Gill was found to experience aneurism, hyperplasia in lamellar and autolysis of mast cell. Pyknotic nuclei and necrosis were observed in liver cell, while the lumen of renal tubule was found to narrow and haemorrhage was observed in cytoplasm cell. High LC50 compared to other fishes indicates that A. testudineus has high tolerant to endosulfan, however, endosulfan slowly alters the fish biochemistry and is potentially transferable to human
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Armbruster JW, Lujan NK. A new species of Peckoltia from the Upper Orinoco (Siluriformes, Loricariidae). Zookeys 2016:105-21. [PMID: 27110153 PMCID: PMC4829682 DOI: 10.3897/zookeys.569.6630] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2015] [Accepted: 12/12/2015] [Indexed: 12/05/2022] Open
Abstract
A new species of the suckermouth armored catfish genus Peckoltia is described from the lower Ventuari River, a tributary of the upper Orinoco River in Amazonas State, Venezuela. Specimens of this species were formerly included in the wide-ranging Amazonian species Peckoltiavittata, but a recent molecular phylogeny found Orinoco individuals to be distantly related to Amazon Basin individuals spanning the range of Peckoltiavittata syntypes. Detailed morphological examination confirmed distinctiveness of Orinoco specimens, and found them to be diagnosable from true Peckoltiavittata by having generally greater than 25 teeth (vs. less), spots on the nape (vs. nape lacking spots), the upper lip with two to three black bar-shaped markings in a line like a moustache (vs. lips generally with a hyaline wash), and by the snout having a medial black line disconnected from the moustache markings (vs. medial snout stripe connected to a bar just above the lip). Peckoltiawernekei displays remarkable genetic similarity to its sister species, Peckoltialujani, but differs morphologically by having dentary tooth rows meet at an angle less than 90° (vs. >90°), by having large faint blotches on the abdomen (vs. abdomen with no blotches), by a smaller internares width (21.2–26.6% vs. 28.5–46.5% of interorbital width), and a larger dorsal spine (148.1–178.6% vs. 80.1–134.5% of abdominal length).
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Affiliation(s)
- Jonathan W Armbruster
- Department of Biological Sciences, 101 Life Sciences Building, Auburn University, AL 36849, USA
| | - Nathan K Lujan
- Department of Biological Science, University of Toronto Scarborough, Toronto, ON M1C1A4, Canada
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Tan M, Armbruster JW. Two new species of spotted Hypancistrus from the Rio Negro drainage (Loricariidae, Hypostominae). Zookeys 2016:123-35. [PMID: 26865819 PMCID: PMC4740853 DOI: 10.3897/zookeys.552.5956] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2014] [Accepted: 11/11/2015] [Indexed: 11/20/2022] Open
Abstract
Two new species, Hypancistrusphantasma and Hypancistrusmargaritatus, are described based on material from the Rio Negro drainage. Both species are distinguished from congeners by unique color patterns. Hypancistrusphantasma is described from the Rio Uaupes and differs from congeners by having a tan body with small dark spots (vs. dark with light spots or with saddles or stripes). Hypancistrusmargaritatus is described from the Takutu River and differs from congeners by having densely-packed light spots on a dark brown background, with spots about the size of the nasal aperture (vs. sparse light spots either smaller or larger than the nasal aperture, or brown to black spots, saddles, or stripes).
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Affiliation(s)
- Milton Tan
- Department of Biological Sciences, 101 Life Sciences Building, Auburn University, AL 36849, USA
| | - Jonathan W Armbruster
- Department of Biological Sciences, 101 Life Sciences Building, Auburn University, AL 36849, USA
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Tan M, Souza LSD, Armbruster JW. A new species of Panaqolus (Siluriformes: Loricariidae) from the rio Branco. NEOTROPICAL ICHTHYOLOGY 2016. [DOI: 10.1590/1982-0224-20150033] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
ABSTRACT A new species of Panaqolus is described from material from the Takutu River and the mainstem rio Branco. The new species is diagnosed from congeners by its color pattern consisting of dark and light bars on the body, bands on the fins, and with dots and vermiculations absent (vs. no bars in P. albomaculatus , P. nix , P. nocturnus , and P. koko , vs. fins unbanded in P. albomaculatus , P. dentex , P. koko , and P. nix , and vs. dots and vermiculations present in P. albivermis and P. maccus ). The new species is diagnosed from barred species of Panaqolus by its specific bar number and orientation and color pattern on its head, with bars oriented in a anteroventral-posterodorsal direction (vs. anterodorsal-posteroventral bars in P. gnomus ), having consistently 5 bars (n = 4) on the trunk that do not increase with size (vs. number increasing with size in P. purusiensis and vs. 6-12 in P. changae ), and the color pattern on the head of straight lines extending from posterior to the eye to the snout margin, splitting in the middle portion of the line in larger specimens (vs. small, dense reticulate lines in P. changae ). Biogeographically, we infer that the new species ancestrally originated in the Amazon river, dispersing to the Takutu River after the Amazon captured part of the Proto-Berbice.
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Konstantinidis P, Warth P, Naumann B, Metscher B, Hilton EJ, Olsson L. The Developmental Pattern of the Musculature Associated with the Mandibular and Hyoid Arches in the Longnose Gar,Lepisosteus osseus(Actinopterygii, Ginglymodi, Lepisosteiformes). COPEIA 2015. [DOI: 10.1643/ot-14-195] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Edmunds RC, Su B, Balhoff JP, Eames BF, Dahdul WM, Lapp H, Lundberg JG, Vision TJ, Dunham RA, Mabee PM, Westerfield M. Phenoscape: Identifying Candidate Genes for Evolutionary Phenotypes. Mol Biol Evol 2015; 33:13-24. [PMID: 26500251 PMCID: PMC4693980 DOI: 10.1093/molbev/msv223] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Phenotypes resulting from mutations in genetic model organisms can help reveal candidate genes for evolutionarily important phenotypic changes in related taxa. Although testing candidate gene hypotheses experimentally in nonmodel organisms is typically difficult, ontology-driven information systems can help generate testable hypotheses about developmental processes in experimentally tractable organisms. Here, we tested candidate gene hypotheses suggested by expert use of the Phenoscape Knowledgebase, specifically looking for genes that are candidates responsible for evolutionarily interesting phenotypes in the ostariophysan fishes that bear resemblance to mutant phenotypes in zebrafish. For this, we searched ZFIN for genetic perturbations that result in either loss of basihyal element or loss of scales phenotypes, because these are the ancestral phenotypes observed in catfishes (Siluriformes). We tested the identified candidate genes by examining their endogenous expression patterns in the channel catfish, Ictalurus punctatus. The experimental results were consistent with the hypotheses that these features evolved through disruption in developmental pathways at, or upstream of, brpf1 and eda/edar for the ancestral losses of basihyal element and scales, respectively. These results demonstrate that ontological annotations of the phenotypic effects of genetic alterations in model organisms, when aggregated within a knowledgebase, can be used effectively to generate testable, and useful, hypotheses about evolutionary changes in morphology.
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Affiliation(s)
| | - Baofeng Su
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University
| | | | - B Frank Eames
- Department of Anatomy and Cell Biology, University of Saskatchewan, Saskatoon, SK, Canada
| | - Wasila M Dahdul
- National Evolutionary Synthesis Center, Durham, NC Department of Biology, University of South Dakota
| | - Hilmar Lapp
- National Evolutionary Synthesis Center, Durham, NC
| | - John G Lundberg
- Department of Ichthyology, The Academy of Natural Sciences, Philadelphia, Philadelphia, PA
| | - Todd J Vision
- National Evolutionary Synthesis Center, Durham, NC Department of Biology, University of North Carolina, Chapel Hill
| | - Rex A Dunham
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University
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Lima ARA, Barletta M, Dantas DV, Ramos JAA, Costa MF. Early development of marine catfishes (Ariidae): from mouth brooding to the release of juveniles in nursery habitats. JOURNAL OF FISH BIOLOGY 2013; 82:1990-2014. [PMID: 23731148 DOI: 10.1111/jfb.12128] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2011] [Accepted: 03/13/2013] [Indexed: 06/02/2023]
Abstract
The development and allometric growth patterns of the ariid catfishes Cathorops spixii and Cathorops agassizii were studied from neurula embryos to juveniles. The ontogenetic sequence revealed that prior to hatching, embryos of both species are well developed, and their axial and appendicular skeletons are well ossified. Embryos of both species grow slowly longitudinally, but positively allometric growth (growth coefficient, β1 > 1) was observed in head width and eye diameter. It is hypothesized that these growth patterns might be related to functional priorities for the development of sensory organs, such as the inner ears (otoliths), the Weberian apparatus, eyes and nostrils, during the embryonic period. The first appearance of vertebrae and otoliths, as well as the ossification of otoliths and the Weberian apparatus, occur earlier in embryos of C. agassizii than in embryos of C. spixii. After hatching, mouth-brooded free embryos of both species grow isometrically. Negatively allometric growth was observed in head width and eye diameter during the yolk-sac period, which is expected given that the sensory organs are already formed. Free embryos of C. agassizii are distinguishable from those of C. spixii by their larger eyes, longer snouts, longer heads and heavier yolk sacs. The end of the yolk-sac period is characterized by a direct change from free embryo to juvenile, without a true larval period. The juveniles of the two species can also be distinguished from each other by the larger eyes of C. agassizii compared with C. spixii, as in adult fishes.
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Affiliation(s)
- A R A Lima
- Department of Oceanography, Federal University of Pernambuco, Recife, Pernambuco, Brazil
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Armbruster JW, Taphorn DC. A New Genus and Species of Weakly Armored Catfish from the Upper Mazaruni River, Guyana (Siluriformes: Loricariidae). COPEIA 2011. [DOI: 10.1643/ci-08-187] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Huysentruyt F, Geerinckx T, Brunain M, Adriaens D. Development of the osteocranium in Corydoras aeneus (Gill, 1858) Callichthyidae, Siluriformes. J Morphol 2011; 272:573-82. [PMID: 21344478 DOI: 10.1002/jmor.10935] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2010] [Revised: 10/19/2010] [Accepted: 11/07/2010] [Indexed: 11/12/2022]
Abstract
Development in the osteocranium of Corydoras aeneus was studied based on 48 cleared and stained specimens and 10 series of serial sections. Development overall follows the general trends observed in siluriform development, with ossifications appearing as a response to functional demands. Early development of the skull occurs in two distinct phases. In a first phase, several new bony elements, all of dermal origin and related to feeding, appear shortly after yolk depletion (4.4 mm SL). Between 5 and 8 mm SL, developmental priorities seem to shift to size increase of the cartilaginous skull and no new bony elements appear. Finally, a second phase of osteogenesis occurs from 8 to 18 mm SL, in which all remaining dermal and perichondral bones appear.
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Affiliation(s)
- Frank Huysentruyt
- Evolutionary Morphology of Vertebrates, Department of Biology, Ghent University-UGent, K.L. Ledeganckstraat 35, 9000 Gent, Belgium.
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Konstantinidis P, Harris M. Same but different: ontogeny and evolution of the Musculus adductor mandibulae in the Tetraodontiformes. JOURNAL OF EXPERIMENTAL ZOOLOGY PART B-MOLECULAR AND DEVELOPMENTAL EVOLUTION 2010; 316:10-20. [DOI: 10.1002/jez.b.21375] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Anto J, Majoris J, Turingan RG. Prey selection and functional morphology through ontogeny of Amphiprion clarkii with a congeneric comparison. JOURNAL OF FISH BIOLOGY 2009; 75:575-590. [PMID: 20738558 DOI: 10.1111/j.1095-8649.2009.02308.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
The relationship between the complexity of the feeding apparatus and prey selection through ontogeny was examined in Amphiprion clarkii larvae. Larvae were reared from 1 to 10 days post-hatch (dph) on a diet of rotifers, wild-caught plankton and newly hatched Artemia sp. nauplii. Results were compared with available data on the relationship between functional morphology and prey selection of Amphiprion frenatus to establish patterns of functional morphology and prey selection between the larvae of two species of coral-reef fishes. Larvae of both species exhibited an increase in selection of larger prey through ontogeny coincident with an increase in the complexity of the feeding apparatus. The first elements to ossify in larvae of both species were the pharyngeal teeth (A. clarkii: 5 dph, near +/-s.d. Standard length, L(S),4. 3 +/- 0. 2 mm; A. frenatus: 5 dph, L(S)5. 0 +/- 0. 4 mm) which, in combination with the development of a more functional feeding apparatus, may have permitted larvae to better process new types and sizes of prey. Prey items, however, were selected differentially between the two fish species, which could not be fully explained by the functional state of the feeding apparatus. While prey selection is influenced by the functional state of the feeding apparatus, all aspects of larval fish biology (morphology, behaviour and physiology) should be considered.
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Affiliation(s)
- J Anto
- Florida Institute of Technology, 150 W. University Boulevard, Melbourne, FL 32901, USA.
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GEERINCKX TOM, HUYSENTRUYT FRANK, ADRIAENS DOMINIQUE. Ontogeny of the jaw and maxillary barbel musculature in the armoured catfish families Loricariidae and Callichthyidae (Loricarioidea, Siluriformes), with a discussion on muscle homologies. Zool J Linn Soc 2009. [DOI: 10.1111/j.1096-3642.2008.00434.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Ontogeny of the suspensorial and opercular musculature in the suckermouth armoured catfish Ancistrus cf. triradiatus (Loricariidae, Siluriformes). ZOOMORPHOLOGY 2007. [DOI: 10.1007/s00435-007-0054-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Malabarba MC, Lundberg JG. A fossil loricariid catfish (Siluriformes: Loricarioidea) from the Taubaté Basin, eastern Brazil. NEOTROPICAL ICHTHYOLOGY 2007. [DOI: 10.1590/s1679-62252007000300005] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A new loricariid catfish is described from the Tremembé Formation (Late Oligocene to Early Miocene) sediments of the Taubaté Basin in eastern São Paulo State, Brazil. Taubateia paraiba, new genus and species, is based on a single specimen preserved as a ventral-side impression of an articulated partial neurocranium, dorsal elements of the pectoral girdle and anterior vertebrae. The fossil is identified as belonging to family Loricariidae based on obvious overall similarity and the presence of diagnostic derived characters such as: odontodes, dorsal margin of metapterygoid contacting lateral ethmoid, presence of mesethmoid disk (condyle), and compound pterotic-supracleithrum bone. Also, as in most loricariids, the ossified transcapular (Baudelot's) ligament plus basiocciptal lateral process form a prominent transverse wall at the occiput. Other derived characters preserved in Taubateia are synapomorphies at different levels within Loricariidae, including a wide and low parasphenoid, form of pterotic-supracleithrum, shape and position of the mesethmoid disk, a triangular lateral ethmoid with expanded posterolateral corner and a rounded and low ridge articulating with the metapterygoid, and a pointed distal margin of transverse process of the Weberian compound centrum. The derived characters recognized in this fossil are a distinctive combination for diagnosing a new genus and species but not for its unambiguous placements in any of the currently recognized loricariid subfamilies.
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Geerinckx T, De Poorter J, Adriaens D. Morphology and development of teeth and epidermal brushes in loricariid catfishes. J Morphol 2007; 268:805-14. [PMID: 17626257 DOI: 10.1002/jmor.10547] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Loricariidae or suckermouth armored catfishes are one of several aquatic taxa feeding on epilithic and epiphytic algae. Their upper and lower jaws bear exquisitely curved teeth, which usually are asymmetrically bicuspid. The enlarged lower lip carries papillae with keratinous unicellular epidermal brushes or unculi. Teeth, and probably unculi too, assist in scraping food off substrates. Their morphology, growth, and replacement is examined and compared among several loricariid species, using cleared and stained specimens, serial sections, and SEM. Apart from the general tooth form and crown shape, the anterior layer of soft tissue on the lower shaft region, present in several species, appears to be a specialization for enhancing the mobility of individual teeth when scraping on uneven surfaces. During early ontogeny, a transition from simple conical to mature tooth occurs. The first unculi appear together with the first teeth carrying a bicuspid crown, 2 days after the first exogenous feeding, but synchronous with the complete resorption of the yolk sac.
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Affiliation(s)
- Tom Geerinckx
- Evolutionary Morphology of Vertebrates, Ghent University-UGent, 9000 Ghent, Belgium.
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