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Chi Pang Li - One of the best experts on this subject based on the ideXlab platform.
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the complete mitochondrial genome of the large yellow croaker larimichthys crocea perciformes Sciaenidae unusual features of its control region and the phylogenetic position of the Sciaenidae
Gene, 2009Co-Authors: Chi Pang LiAbstract:To understand the systematic status of Larimichthys crocea in the Percoidei, we determined the complete mitochondrial (mt) genome sequence using 454 sequencing-by-synthesis technology. The complete mt genome is 16,466 bp in length including the typical structure of 22 tRNAs, 2 rRNAs, 13 protein-coding genes and the noncoding control region (CR). Further sequencing for the complete CR was performed using the primers Cyt b-F and 12S-R on six L crocea individuals and two L polyactis individuals. Interestingly, all seven CR sequences from L crocea were identical while the three sequences from L polyactis were distinct (including one from GenBank). Although the conserved blocks such as TAS and CSB-1, -2, and -3 are readily identifiable in the control regions of the two species, the typical central conserved blocks CSB-D, -E, and -F could not be detected, while they are found in Cynoscion acoupa of Sciaenidae and other Percoidei species. Phylogenetic analysis shows that L crocea is a relatively recently emerged species in Sciaenidae and this family is closely related to family Pomacanthidae within the Percoidei. L crocea, as the first species of Sciaenidae with complete mitochondrial genome available, will provide important information on the molecular evolution of the group. Moreover, the genus-specific pair of primers designed in this study for amplifying the complete mt control region will be very useful in studies on the population genetics and conservation biology of Larimichthys. (c) 2008 Elsevier B.V. All rights reserved.
Javier S. Tellechea - One of the best experts on this subject based on the ideXlab platform.
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The acoustic behavior of Southern King Weakfish (Macrodon atricauda-Sciaenidae)
Environmental Biology of Fishes, 2019Co-Authors: Javier S. TellecheaAbstract:Many species of fishes use acoustic signals for a variety of purposes, and sciaenid are well-known producers of sound. The Southern King Weakfish ( Macrodon atricuada - Sciaenidae) possesses sexually dimorphic bilateral sonic muscles used for sound production. The bilaterally paired muscles lie on the inner body wall of the male, surrounding the swimbladder. The Southern King Weakfish produces three different sounds: advertisement calls, disturbance calls and dual-knocks, these sounds were recorded from Rio de la Plata estuary, Uruguayan coastal waters and laboratory. The advertisement call, related to courtship, was recorded in the field and from spawning males in the laboratory. Disturbance calls were produced when captive M. atricauda were startled, chased with a net or grabbed by the tail. Disturbance calls consist of a burst of pulses produced at short intervals. In disturbance call interpulse interval increased and dominant frequency decreased linearly ( P < 0.05), pulse duration did not change with fish size. M. atricauda start producing disturbance call at 14 cm LT (Total Length), but only individuals over than 25 cm LT were who produced the advertisement call. Dual-knocks, call compose of only two pulses together, was recorder only in captivity. Sounds are a valuable non-invasive tool for fisheries biologists can used to monitor on males in spawning populations.
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The acoustic behavior of Southern King Weakfish ( Macrodon atricauda -Sciaenidae)
Environmental Biology of Fishes, 2019Co-Authors: Javier S. TellecheaAbstract:Many species of fishes use acoustic signals for a variety of purposes, and sciaenid are well-known producers of sound. The Southern King Weakfish (Macrodon atricuada- Sciaenidae) possesses sexually dimorphic bilateral sonic muscles used for sound production. The bilaterally paired muscles lie on the inner body wall of the male, surrounding the swimbladder. The Southern King Weakfish produces three different sounds: advertisement calls, disturbance calls and dual-knocks, these sounds were recorded from Rio de la Plata estuary, Uruguayan coastal waters and laboratory. The advertisement call, related to courtship, was recorded in the field and from spawning males in the laboratory. Disturbance calls were produced when captive M. atricauda were startled, chased with a net or grabbed by the tail. Disturbance calls consist of a burst of pulses produced at short intervals. In disturbance call interpulse interval increased and dominant frequency decreased linearly (P
Frantisek Moravec - One of the best experts on this subject based on the ideXlab platform.
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Two philometrids (Nematoda: Philometridae) infecting the tigertooth croaker Otolithes ruber (Bloch & Schneider) (Teleostei: Sciaenidae) off Iran, including erection of a new genus
Systematic Parasitology, 2013Co-Authors: Frantisek Moravec, Maryam Khosheghbal, Jamileh PazookiAbstract:Two philometrid nematodes (Philometridae) are described from the marine perciform fish (tigertooth croaker) Otolithes ruber (Bloch & Schneider) (Sciaenidae) from off Iran: Clavinemoides annulatus n. g., n. sp. based on female specimens from the caudal fin of fish from the Persian Gulf and Philometra otolithi Moravec & Manoharan, 2013 from subgravid and nongravid females collected from the ovary of fishes in the Sea of Oman and the Persian Gulf. The monotypic genus Clavinemoides n. g. is mainly characterised by a triangular oral aperture, a markedly large anterior oesophageal bulb, a distinctly annulated body and numerous fine elevated transverse cuticular bands. The finding of P . otolithi in Iranian waters represents a new geographical record of this parasite species. An updated key to the genera of the Philometrinae Baylis & Daubney, 1926 is provided.
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two philometrids nematoda philometridae infecting the tigertooth croaker otolithes ruber bloch schneider teleostei Sciaenidae off iran including erection of a new genus
Systematic Parasitology, 2013Co-Authors: Frantisek Moravec, Maryam Khosheghbal, Jamileh PazookiAbstract:Two philometrid nematodes (Philometridae) are described from the marine perciform fish (tigertooth croaker) Otolithes ruber (Bloch & Schneider) (Sciaenidae) from off Iran: Clavinemoides annulatus n. g., n. sp. based on female specimens from the caudal fin of fish from the Persian Gulf and Philometra otolithi Moravec & Manoharan, 2013 from subgravid and nongravid females collected from the ovary of fishes in the Sea of Oman and the Persian Gulf. The monotypic genus Clavinemoides n. g. is mainly characterised by a triangular oral aperture, a markedly large anterior oesophageal bulb, a distinctly annulated body and numerous fine elevated transverse cuticular bands. The finding of P. otolithi in Iranian waters represents a new geographical record of this parasite species. An updated key to the genera of the Philometrinae Baylis & Daubney, 1926 is provided.
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gonad infecting philometrids nematoda philometridae including four new species from marine fishes off the eastern coast of india
Folia Parasitologica, 2013Co-Authors: Frantisek Moravec, Jayarama ManoharaAbstract:Abstract: Based on light and scanning electron microscopical studies, the following five gonad-infecting species of the Philometridae (Nematoda: Dracunculoidea) are described from marine perciform fishes off the eastern coast of India (Bay of Bengal): Philometra sphyraenae sp. n. (males and females) from the pickhandle barracuda Sphyraena jello Cuvier (Sphyraenidae), Philometra gerrei sp. n. (males and females) from the whipfin silver-biddy Gerres filamentosus Cuvier (Gerreidae), Philometra otolithi sp. n. (single female) from the tigertooth croaker Otolithes ruber (Bloch et Schneider) (Sciaenidae), Philometra sp. (females) from the Belanger's croaker Johnius belangerii (Cuvier) (Sciaenidae), and Philometroides eleutheronemae sp. n. (females) from the fourfinger threadfin Eleutheronema tetradactylum (Shaw) (Polynemidae). All new species are distinguished from their congeners parasitizing gonads of marine fishes by morphological (mainly the gubernaculum structure in males and the shape and structure of the cephalic and caudal ends and of the oesophagus in females) and biometrical features. Philometra rajani Mukherjee, 1963 is considered a species inquirenda.
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Philometra floridensis sp. n. (Nematoda: Philometridae) from the ovary of red drum Sciaenops ocellatus (Osteichthyes: Sciaenidae) off the coast of Florida, USA.
Journal of Helminthology, 2009Co-Authors: Frantisek Moravec, Emma J. Fajer-Ávila, Micah D. BakenhasterAbstract:A new nematode species, Philometra floridensis sp. n. (Philometridae), is described from male and female specimens found in the ovary of red drum, Sciaenops ocellatus (Linnaeus) (Sciaenidae, Perciformes), from the Gulf of Mexico off Treasure Island, Florida, USA. Based on light and scanning electron microscopy examination, the new species differs from most other gonad-infecting Philometra spp. in having a smooth gubernaculum with a distinct dorsal tooth on the distal tip. The new species is most similar to P. carolinensis Moravec, de Buron & Roumillat, 2006, but differs in length and shape of spicules. It can be distinguished from P. carolinensis and other species with unknown males, by the markedly greater body length of gravid females (up to about 100 cm). Philometra floridensis is the third valid gonad-infecting species of Philometra reported from sciaenids.
Kent Carpenter - One of the best experts on this subject based on the ideXlab platform.
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A popular and potentially sustainable fishery resource under pressure–extinction risk and conservation of Brazilian Sciaenidae (Teleostei: Perciformes)
Global Ecology and Conservation, 2015Co-Authors: Ning Labbish Chao, Flávia Lucena Frédou, Manuel Haimovici, Monica Brick Peres, Beth A. Polidoro, Marcelo Raseira, Rosana Subirá, Kent CarpenterAbstract:a b s t r a c t Croakers (Sciaenidae) are major fishery resource in Brazil; constituting 22% of marine and 9% of freshwater fishery landings. Croakers are subject to heavy fishing pressure throughoutBrazil,buthabitatalterationisalsoanimportantthreattoregionalpopulations. In this regional Sciaenidae assessment, each species was analyzed for relative risk of extinction, including the identification and quantification of the impact of major threats and existing conservation measures, based on application of the Categories and Criteria of the IUCN Red List of Threatened Species. Of the 52 species of Sciaenid fishes (34 marine and 18 freshwater) present in Brazilian waters, the majority are at low risk of extinction, with 10 species classified as Data Deficient (DD) and 36 as Least Concern (LC). However the Southern black drum (Pogonias cromis), listed as Endangered (EN) is the most threatened species in the region, while three other species are classified as Near Threatened (NT). A large portion of Brazilian croakers is landed by small-scale artisanal fisheries, which are scattered along coastal and riverine communities. However, our assessments reveal that available fishery landing statistics may have greatly underestimated the artisanal fishery production and by-catch of Sciaenids. We recommend establishing, with adequate enforcement, coastal and riverine protected areas as well as strategic fishing seasons to improve and maintain the conservation status of Sciaenids and sustainable Sciaenid fisheries.
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a popular and potentially sustainable fishery resource under pressure extinction risk and conservation of brazilian Sciaenidae teleostei perciformes
Global Ecology and Conservation, 2015Co-Authors: Ning Labbish Chao, Flávia Lucena Frédou, Manuel Haimovici, Monica Brick Peres, Beth A. Polidoro, Marcelo Raseira, Rosana Subirá, Kent CarpenterAbstract:a b s t r a c t Croakers (Sciaenidae) are major fishery resource in Brazil; constituting 22% of marine and 9% of freshwater fishery landings. Croakers are subject to heavy fishing pressure throughoutBrazil,buthabitatalterationisalsoanimportantthreattoregionalpopulations. In this regional Sciaenidae assessment, each species was analyzed for relative risk of extinction, including the identification and quantification of the impact of major threats and existing conservation measures, based on application of the Categories and Criteria of the IUCN Red List of Threatened Species. Of the 52 species of Sciaenid fishes (34 marine and 18 freshwater) present in Brazilian waters, the majority are at low risk of extinction, with 10 species classified as Data Deficient (DD) and 36 as Least Concern (LC). However the Southern black drum (Pogonias cromis), listed as Endangered (EN) is the most threatened species in the region, while three other species are classified as Near Threatened (NT). A large portion of Brazilian croakers is landed by small-scale artisanal fisheries, which are scattered along coastal and riverine communities. However, our assessments reveal that available fishery landing statistics may have greatly underestimated the artisanal fishery production and by-catch of Sciaenids. We recommend establishing, with adequate enforcement, coastal and riverine protected areas as well as strategic fishing seasons to improve and maintain the conservation status of Sciaenids and sustainable Sciaenid fisheries.
Carlos Eduardo Falavigna Da Rocha - One of the best experts on this subject based on the ideXlab platform.
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Therodamas tamarae, a new species of copepod (Poecilostomatoida: Ergasilidae) parasitic on Plagioscion squamosissimus (Heckel) from the Araguaia River, Brazil; with a key to the species of the genus
Hydrobiologia, 1996Co-Authors: Maria Auxiliadora Pinto Da Motta Amado, Carlos Eduardo Falavigna Da RochaAbstract:Therodamas tamarae n.sp. is described based on females removed from branchial filaments of Plagioscion squamosissimus (Teleostei, Sciaenidae) caught in a lake near the Araguaia River, State of Goiás, Brazil. The new species shares with Therodamas elongatus (Thatcher, 1986) the same host, a similar reaction from the host to the presence of the parasites, and the same general shape of body; in addition, the two species are from the Amazon basin. On the other hand, it resembles T. fluviatilis Paggi, 1976 in the structure of legs 1 to 4. An identification key for Therodamas species, as well as comments on the distribution of the species, are included.