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Syukur Abdul - One of the best experts on this subject based on the ideXlab platform.
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Karakter Morfologi dan Identifikasi Molekuler dengan Menggunakan Marka Gen 12S rRNA pada Ikan Baronang (Siganus spp.) di Perairan Laut Selatan Pulau Lombok
'Universitas Mataram', 2020Co-Authors: Mahrus Mahrus, Syukur AbdulAbstract:This study aims to obtain the certainty of the number of species of baronang fish (Siganus spp.) Siganidae family in the waters of the south sea of Lombok Island. This study used a sample of 90 fish from the fishermen's catch. Sampling used a random method three times. Observation of morphological characters used 90 and nine fishes for molecular characters-12S rRNA genes. The study used a descriptive technique for data analysis. The results showed that the fish is only one species and suspected consists of 3 variants. Three variants of fish have the same 12S rRNA genes with a fragment size of approximately 1000 bp. The morphological classification of the three groups of fish does not indicate the number of species, but no more as genetic variants
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STRUKTUR POPULASI IKAN EKONOMIS PENTING PADANG LAMUN DI TELUK EKAS LOMBOK TIMUR
'Universitas Mataram', 2019Co-Authors: Zuhdi, Muh Fahmi, Karnan Karnan, Syukur AbdulAbstract:Abstrak : Penelitian ini bertujuan untuk menilai status dan struktur populasi ikan ekonomis penting padang lamun di Teluk Ekas. Pengambilan sampel dilakukan menggunakan pukat pantai (Beach seine) dengan metode swept area pada bulan Mei-Juni 2016. Analisis data pada penelitian ini yaitu analisis data kelimpahan relatif individu ikan menggunakan formula KR=Ni/N x 100 selanjutnya analisis hubungan panjang dan berat menggunakan rumus W= aLb. Hasil pada penelitian ini ditemukan empat spesies ikan ekonomis penting yaitu Siganus gutatus, Siganus canaliculatus, Hemiramphus archipelagicus dan Terapon jarbua. Kelimpahan ikan ekonomis penting yaitu Siganus gutatus sebesar 33,60% dan yang paling rendah Terapon jarbua sebesar 21,24%. Sebaran panjang masing-masing spesies ikan yaitu Siganus guttatus 61-70 mm (46,6%). Siganus canaliculatus, sebaran panjang yang paling tinggi yaitu pada rentang 71-80 mm sebesar (33,1%). Hemiramphus archipelagicus, sebaran panjang yang paling tinggi yaitu pada rentang 131-150 mm sebesar (36,3%). Terapon jarbua, sebaran panjang yang paling tinggi yaitu pada rentang 91-100 mm sebesar (26,8%). Hubungan panjang dan berat ikan yang diperoleh menunjukkan bahwa pola pertumbuhan semua spesies adalah allometrik negatif. Dapat disimpulkan bahwa tingginya kelimpahan jenis ikan ekonomis penting yang berasosiasi dengan padang lamun yang berukuran juvenil sebagai indikator fungsi ekologi lamun sangat vital untuk ikan dapat survive.Kata Kunci : Padang Lamun, Distribusi dan Keragaman Ikan Ekonomis Penting.Abstract : This research aims to assess the stattus and population structure of economically important fish seagrass beds. The sampel was taken by using beach seine with swept area method on Mei-Juni 2016. The data analysis of this research was the analysis of abundance relativity of individual fish by using formula . Then data analysis of lenght and weight relationship using the formula W=aLb.The result of this research, it was found that four species of economically important fish they are Siganus guttatus, Siganus canaliculatus, Hemiramphus archipelagicus and Terapon jarbua. The results abundance of economically important fish was highest in Siganus gutatus with the percentage of 33.60% and the lowest in fish Terapon jarbua with the percentage of 21.24. The distribution of each species was Siganus guttatus the length of distribution highest in the range 61-70 mm with the percentage of 46,6%, Siganus canaliculatus the length of distribution highest in the range 71-80 mm with the percentage of 31,3%, Hemiramphus archipelagicus the length of distribution highest in the range 131-150 mm with the percentage of 36,6%, Terapon jarbua the length of distribution highest in the range 91-100 mm with the percentage of 26,8%. The correllation beetwen length and weight showed that the form of all species was allometrik negatif. It can be concluded that the high number of abundance of economically important juveniles fish which was associated with seagrass as the indicator of ecological function of seagrass ecology was vital in order that fish able to survive.Keywords : Seagrass beds, Distribution and Variation of Economically Important
Murat Kaya - One of the best experts on this subject based on the ideXlab platform.
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growth of marbled spinefoot Siganus rivulatus forsskal 1775 teleostei siganidae introduced to antalya bay eastern mediterranean sea turkey
Fisheries Research, 2002Co-Authors: Murat Bilecenoglu, Murat KayaAbstract:Abstract The age and growth of the marbled spinefoot, Siganus rivulatus Forsskal, 1775, were determined based on specimens collected from Antalya Bay (eastern Mediterranean), during the period from October 1996 to August 1998. Total length–weight relationship was estimated as W=0.0064L3.221 for females, W=0.0079L3.135 for males. Growth parameters of the von Bertalanffy equation were computed for females and males as: L ∞ =22.55 cm, W ∞ =146.8 g, k=0.267 yr −1 , t 0 =−0.47 and L ∞ =21.06 cm, W ∞ =112.1 g, k=0.343 yr −1 , t 0 =−0.54 , respectively. Age was determined by posterior body scale readings. Maximum observed age was 8 years, suggesting that the species is long-lived.
Rodney A Bray - One of the best experts on this subject based on the ideXlab platform.
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First spermatological study in the Atractotrematidae (Digenea, Haploporoidea): the case of Atractotrema sigani, intestinal parasite of Siganus lineatus
Parasite, 2015Co-Authors: Abdoulaye J. S. Bakhoum, Yann Quilichini, Jean-lou Justine, Jordi Miquel, Rodney A Bray, Carlos Feliu, Bernard MarchandAbstract:The ultrastructural organization of the mature spermatozoon of the digenean Atractotrema sigani (from Siganus lineatus off New Caledonia) was investigated by transmission electron microscopy. The male gamete of A. sigani exhibits the general morphology described in digeneans with the presence of two axonemes of different lengths showing the 9 + “1” pattern of the Trepaxonemata, a nucleus, two mitochondria, two bundles of parallel cortical microtubules, external ornamentation, spine-like bodies and granules of glycogen. However, the mature spermatozoon of A. sigani has some specific characters such as the morphology of its anterior region and the submembranous electron-dense material. Although similar structures have been reported in some digenean species, the presence of a submembranous electron-dense material describing a complete ring is reported here for the first time in the mature spermatozoon of A. sigani. In addition, sperm characteristics are compared between the Haploporoidea and their supposed close superfamilies, and possible phylogenetic implications of these findings for the Digenea are discussed.
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ultrastructural study of spermiogenesis and the spermatozoon of cavisoma magnum southwell 1927 acanthocephala palaeacanthocephala cavisomidae from Siganus lineatus pisces teleostei siganidae valenciennes 1835 in new caledonia
Micron, 2012Co-Authors: Josephine Foata, Yann Quilichini, Jean-lou Justine, Rodney A BrayAbstract:This paper presents an ultrastructural study of Cavisoma magnum (Acanthocephala, Cavisomatidae) with a Transmission Electron Microscopy tool. This parasite of the fish Siganus lineatus is here reported for the first time from off New Caledonia, South Pacific. It is the first study describing the ultrastructure, spermiogenesis and spermatozoon of a species of the family Cavisomatidae. The young spermatid of C. magnum possesses a centriole constituted of doublets without a central element. After the elaboration of a flagellum of 9+2 pattern, the centriole migrates in a nuclear groove. Then the flagellum migration occurs and gives rise to a spermatozoon. The distribution and the size of the protein granules are reported and the posterior extremity appears like a chromatin lamina wave. Comparative ultrastructural data are presented on sperm and spermiogenesis of the Acanthocephala and Rotifers examined to date and the phylogenetic implications are discussed.
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spermatozoon ultrastructure of gyliauchen sp digenea gyliauchenidae an intestinal parasite of Siganus fuscescens pisces teleostei
The Biological Bulletin, 2011Co-Authors: Yann Quilichini, Josephine Foata, Jean-lou Justine, Rodney A Bray, Bernard MarchandAbstract:The ultrastructure of the mature spermatozoon of Gyliauchen sp., a parasite of the dusky rabbitfish Siganus fuscescens, was studied by transmission electron microscopy. The spermatozoon possesses two axonemes of the 9+“1” pattern of Trepaxonemata, four attachment zones, one mitochondrion, a nucleus, cortical microtubules, external ornamentation of the plasma membrane, and spine-like bodies. The main characteristics of this spermatozoon are the presence of one mitochondrion, spine-like bodies not associated with the external ornamentation, and a posterior extremity of type 3 that is characterized by the following sequence: posterior extremity of the nucleus then posterior extremity of the second axoneme. Numerous other ultrastructural features are also discussed and compared to the digenean spermatology literature. This is the first study of a member of the Gyliauchenidae and the fourth within the Lepocreadioidea. The results show that many ultrastructural characters are variable within this superfamily an...
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spermatozoon ultrastructure of gyliauchen sp digenea gyliauchenidae an intestinal parasite of Siganus fuscescens pisces teleostei
The Biological Bulletin, 2011Co-Authors: Yann Quilichini, Josephine Foata, Jean-lou Justine, Rodney A Bray, Bernard MarchandAbstract:The ultrastructure of the mature spermatozoon of Gyliauchen sp., a parasite of the dusky rabbitfish Siganus fuscescens, was studied by transmission electron microscopy. The spermatozoon possesses two axonemes of the 9+"1" pattern of Trepaxonemata, four attachment zones, one mitochondrion, a nucleus, cortical microtubules, external ornamentation of the plasma membrane, and spine-like bodies. The main characteristics of this spermatozoon are the presence of one mitochondrion, spine-like bodies not associated with the external ornamentation, and a posterior extremity of type 3 that is characterized by the following sequence: posterior extremity of the nucleus then posterior extremity of the second axoneme. Numerous other ultrastructural features are also discussed and compared to the digenean spermatology literature. This is the first study of a member of the Gyliauchenidae and the fourth within the Lepocreadioidea. The results show that many ultrastructural characters are variable within this superfamily and could be useful for phylogeny.
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two new hemiurine species digenea hemiuridae from spratelloides robustus ogilby clupeiformes clupeidae off south western australia and records of parahemiurus merus linton 1910 from australian and new caledonian waters
Systematic Parasitology, 2005Co-Authors: Rodney A Bray, Thomas H. CribbAbstract:Two new species of hemiurine hemiurid are described from Spratelloides robustus off Woodman Point in southern Western Australia. Hemiurus lignator n. sp. differs from its congeners by a combination of similar-sized suckers, long sinus-sac, tandem testes, relatively elongate shape and unthickened seminal vesicle wall. Parahemiurus xylokopos n. sp. differs from its congeners in a combination of its squat form, its distinctly lobed vitellarium and the proximity of the gonads to the ventral sucker. P. merus (Linton, 1910) is reported from Acanthopagrus australis, Pomatomus saltatrix and Trachinotus coppingeri off northern New South Wales, Caranx sexfasciatus, Scorpis lineolata, Siganus nebulosus, Thunnus tonggol and T. coppingeri off southern Queensland, Cephalopholis boenak and Euthynnus affinis off Heron Island, southern Great Barrier Reef, P. saltatrix off southern Western Australia and Priacanthus hamrur off New Caledonia.
Thomas H. Cribb - One of the best experts on this subject based on the ideXlab platform.
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a review of the genus sclerocollum schmidt paperna 1978 acanthocephala cavisomidae from rabbitfishes siganidae in the indian and pacific oceans
Systematic Parasitology, 2016Co-Authors: Sylvie Pichelin, Lesley R Smales, Thomas H. CribbAbstract:Seven of the eleven species of Siganus Richardson (Siganidae) collected off the coasts of Australia, New Caledonia, French Polynesia and Palau were infected with species of Sclerocollum Schmidt & Paperna, 1978 (Acanthocephala: Cavisomidae). A Principal Component Analysis (PCA) and a Discriminant Analysis were performed on a morphometric dataset of specimens of Sclerocollum including borrowed type-specimens of Sc. rubrimaris Schmidt & Paperna, 1978 from the Indian Ocean and of Sc. robustum Edmonds, 1964, the only acanthocephalan species known previously from an Australian siganid. These analyses showed that the lengths of proboscis hooks were useful variables for separating specimens into groups and supported the presence of two known species (Sc. robustum and Sc. rubrimaris) and one new species (Sc. australis n. sp.) in Australian waters. We found Sc. robustum in Siganus lineatus (Valenciennes) from off Queensland and Sc. rubrimaris in S. fuscescens (Houttuyn) from off Western Australia and Queensland, S. punctatissimus Fowler & Bean from off Queensland and S. argenteus (Quoy & Gaimard), S. corallinus (Valenciennes), S. canaliculatus (Park) and S. doliatus Guerin-Meneville from off New Caledonia (all new host and locality records) which we compared with museum specimens of Sc. rubrimaris from S. rivulatus Forsskal & Niebuhr and S. argenteus [as S. rostratus (Valenciennes)] from the Red Sea. The third species, Sclerocollum australis n. sp., was found only in S. corallinus and S. doliatus from off Queensland. Sclerocollum australis n. sp. can be distinguished from its congeners by a unique combination of characters of the proboscis armature, including lengths of hooks 1–7. Specimens of Sclerocollum were also found in Zebrasoma velifer (Bloch) (Acanthuridae) from off Queensland, and Coradion altivelis McCulloch (Chaetodontidae) and Heniochus acuminatus (Linnaeus) (Chaetodontidae) from off New Caledonia. No acanthocephalans were found in siganids collected from Palau (Micronesia) or Moorea (French Polynesia) or Moreton Bay and Noosa (Queensland, Australia). We found no acanthocephalans in S. puellus (Schlegel), S. punctatus (Schneider & Forster), S. spinus (Linnaeus) or S. vulpinus (Schlegel & Muller). Evidence suggests that species of the genus Sclerocollum have travelled with S. argenteus across the Indo-Pacific with Sc. rubrimaris dispersed widely and Sc. robustum and Sc. australis n. sp. restricted to the Queensland coast, Australia.
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An exceptionally rich complex of Sanguinicolidae von Graff, 1907 (Platyhelminthes: Trematoda) from Siganidae, Labridae and Mullidae (Teleostei: Perciformes) from the Indo-West Pacific Region
Zootaxa, 2006Co-Authors: Matthew J. Nolan, Thomas H. CribbAbstract:We describe an unprecedented radiation of sanguinicolid blood flukes (Digenea: Sanguinicolidae) from two species of Labridae (Choerodon venustus and C. cauteroma), seven species of Mullidae (Mulloidichthys vanicolensis, Parupeneus barberinoides, P. barberinus, P. bifasciatus, P. cyclostomus, P. indicus and P. multifasciatus) and ten species of Siganidae (Siganus argenteus, S. corallinus, S. doliatus, S. fuscescens, S. lineatus, S. margaritiferus, S. puellus, S. punctatus, S. virgatus and S. vulpinus) from sites off Australia and Palau. The flukes were morphologically similar in having the combination of a long thread-like body, tegumental spines in lateral transverse rows, a vestigial oral sucker bearing concentric rows of fine spines, an H-shaped intestine, a cirrus-sac, a notch level with the male genital pore, a lateral or post-ovarian uterus, a uterine chamber and separate genital pores. These species are divided into two genera on the basis of testis number. Sanguinicolids from Siganus fuscescens have a single large testis between the intestinal bifurcation and the ovary and are placed in Ankistromeces Nolan & Cribb, 2004. Species from the remaining nine species of Siganidae, Labridae and Mullidae are placed in Phthinomita n. g.; these species have two testes, the anterior testis being large and between the intestinal bifurcation and the ovary whereas the small posterior testis is at the posterior end of the body and appears rudimentary or degenerate and probably non-functional. The second internal transcribed spacer (ITS2) of ribosomal DNA (rDNA) from 29 host/parasite/location combinations (h/p/l) was sequenced together with that of Ankistromeces mariae Nolan & Cribb, 2004 for comparison. From 135 samples we found 19 distinct genotypes which were interpreted as representing at least that many species. Replicate sequences were obtained for 25 of 30 h/p/l combinations (including A. mariae); there was no intraspecific variation between replicates sequences for any of these. Interspecific variation ranged from 1–41 base differences (0.3–12.7% sequence divergence). The 19 putative species were difficult to recognise by morphological examination. We describe 13 new species; we do not describe (=name) six species characterised solely by molecular sequences and three putative species for which morphological data is available but for which molecular data is not. We have neither morphological nor molecular data for sanguinicolids harboured in five hosts species (Siganus margaritiferus, S. puellus, Choerodon cauteroma, Parupeneus indicus and P. multifasciatus) in which we have seen infections. Where host species were infected in different localities they almost always harboured distinct species. Some host species (for example, S. argenteus and S. lineatus from Lizard Island) harboured two or three species in a single geographical location. This suggests that, for parts of this system, parasite speciation has outstripped host speciation. Distance analysis of ITS2 showed species from each host family (Siganidae, Mullidae and Labridae) did not form monophyletic clades to the exclusion of species from other host families. However, a host defined clade was formed by the sequences from sanguinicolids from S. fuscescens.
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two new hemiurine species digenea hemiuridae from spratelloides robustus ogilby clupeiformes clupeidae off south western australia and records of parahemiurus merus linton 1910 from australian and new caledonian waters
Systematic Parasitology, 2005Co-Authors: Rodney A Bray, Thomas H. CribbAbstract:Two new species of hemiurine hemiurid are described from Spratelloides robustus off Woodman Point in southern Western Australia. Hemiurus lignator n. sp. differs from its congeners by a combination of similar-sized suckers, long sinus-sac, tandem testes, relatively elongate shape and unthickened seminal vesicle wall. Parahemiurus xylokopos n. sp. differs from its congeners in a combination of its squat form, its distinctly lobed vitellarium and the proximity of the gonads to the ventral sucker. P. merus (Linton, 1910) is reported from Acanthopagrus australis, Pomatomus saltatrix and Trachinotus coppingeri off northern New South Wales, Caranx sexfasciatus, Scorpis lineolata, Siganus nebulosus, Thunnus tonggol and T. coppingeri off southern Queensland, Cephalopholis boenak and Euthynnus affinis off Heron Island, southern Great Barrier Reef, P. saltatrix off southern Western Australia and Priacanthus hamrur off New Caledonia.
Syukur A. - One of the best experts on this subject based on the ideXlab platform.
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Struktur Populasi Ikan Ekonomis Penting Padang Lamun di Teluk Ekas Lombok Timur
Mataram University, 2019Co-Authors: Zuhdi M. F., Karnan K., Syukur A.Abstract:Penelitian ini bertujuan untuk menilai status dan struktur populasi ikan ekonomis penting padang lamun di Teluk Ekas. Pengambilan sampel dilakukan menggunakan pukat pantai (Beach seine) dengan metode swept area pada bulan Mei-Juni 2016. Analisis data pada penelitian ini yaitu analisis data kelimpahan relatif individu ikan menggunakan formula KR=Ni/N x 100 selanjutnya analisis hubungan panjang dan berat menggunakan rumus W= aLb. Hasil pada penelitian ini ditemukan empat spesies ikan ekonomis penting yaitu Siganus gutatus, Siganus canaliculatus, Hemiramphus archipelagicus dan Terapon jarbua. Kelimpahan ikan ekonomis penting yaitu Siganus gutatus sebesar 33,60% dan yang paling rendah Terapon jarbua sebesar 21,24%. Sebaran panjang masing-masing spesies ikan yaitu Siganus guttatus 61-70 mm (46,6%). Siganus canaliculatus, sebaran panjang yang paling tinggi yaitu pada rentang 71-80 mm sebesar (33,1%). Hemiramphus archipelagicus, sebaran panjang yang paling tinggi yaitu pada rentang 131-150 mm sebesar (36,3%). Terapon jarbua, sebaran panjang yang paling tinggi yaitu pada rentang 91-100 mm sebesar (26,8%). Hubungan panjang dan berat ikan yang diperoleh menunjukkan bahwa pola pertumbuhan semua spesies adalah allometrik negatif. Dapat disimpulkan bahwa tingginya kelimpahan jenis ikan ekonomis penting yang berasosiasi dengan padang lamun yang berukuran juvenil sebagai indikator fungsi ekologi lamun sangat vital untuk ikan dapat survive
