Journal articles: 'Carcharhinus brevipinna'

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Schwartz, Frank J. "Jumping and Spinning by Carcharhinid Sharks: Another View." Journal of North Carolina Academy of Science 129, no. 3 (September 1, 2013): 107–10. http://dx.doi.org/10.7572/2167-5880-129.3.107.

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Abstract Carcharhinus brevipinna (spinner) and Carcharhinus limbatus (blacktip) sharks make spectacular jumps and spinning leaps out of the water. Some believe these are: jumping responses to rid sharksuckers (Echeneis naucrates) that attach to their bodies, chaffing, shuttling, or heat hunter- cool rest behaviors. Examination of North Carolina shark data suggests that C. brevipinna and C. limbatus in temperate waters of North Carolina sense changes in abrupt ocean water temperatures. Echeneis naucrates is just along for the ride. Why after fourty-six years of longlining only one Echeneis naucrates occurred on C. brevipinna while many occurred on C. limbatus is unknown. Perhaps something in the skin texture, not shape, of C. brevipinna deters Echeneis from attaching.

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Fahmi and Kurnaen Sumadhiharga. "SIZE, SEX AND LENGTH AT MATURITY OF FOUR COMMON SHARKS CAUGHT FROM WESTERN INDONESIA." Marine Research in Indonesia 32, no. 1 (May 11, 2007): 7–19. http://dx.doi.org/10.14203/mri.v32i1.427.

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A study on four common shark species in Indonesia, the spinner shark Carcharhinus brevipinna (Muller and Henle, 1839), silky shark Carcharhinus falciformis (Bibron, 1839), spot-tail shark Carcharhinus sorrah (Valenciennes, 1839) and scalloped hammerhead Sphyrna lewini (Griffith and Smith, 1834) was conducted at several shark landing sites in western Indonesia from March 2002 to December 2004. Data were collected from the surveyed areas including the length of frequency, sex composition and length at maturity. In general, they were caught at size smaller than their maturity size. The proportion of immature C. brevipinna, C. falciformis, C. sorrah and S. lewini to their total number recorded at the surveyed area during the study were about 87%, 50%, 80% and 65%, respectively. According to the length at maturity, females generally attained their maturity in larger size than males. Some factors contributing the catches in immature size and conservation status of those four species were also discussed.

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Russo, F., and A. De Maddalena. "On the presence of the spinner shark Carcharhinus brevipinna (Müller & Henle, 1839) (Chondrichthyes: Carcharhinidae) in Maldivian waters." Marine Biological Journal 6, no. 4 (November 30, 2021): 87–91. http://dx.doi.org/10.21072/mbj.2021.06.4.07.

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We present the first confirmed report on the presence of spinner shark, Carcharhinus brevipinna, in Maldivian waters. The species was observed in front of Kooddoo’s harbour, in Villingili pass, Northern Huvadhoo Atoll, Southern Maldives in March 2020.

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Alfitri, Misla, Asadatun Abdullah, and Roni Nugraha. "Identifikasi Spesies Ikan Hiu dan Pari pada Produk Olahan Ikan Asap dengan Metode DNA Barcoding." Jurnal Pengolahan Hasil Perikanan Indonesia 25, no. 1 (April 29, 2022): 163–71. http://dx.doi.org/10.17844/jphpi.v25i1.38518.

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Ikan hiu dan pari adalah kelompok ikan yang diatur perdagangannya di tingkat lokal dan internasional. Tingginya permintaan produk hiu di pasaran dapat berakibat pada kelangkaan spesies-spesies hiu tertentu di alam. Autentikasi pada produk-produk olahan hiu diperlukan untuk mendeteksi jenis spesies hiu yang digunakan pada suatu produk. Tujuan dari penelitian ini yaitu mengidentifikasi spesies ikan hiu dan pari asap yang berasal dari Perairan Utara Pulau Jawa, Tegal, Jawa Tengah dengan metode DNA barcoding. Metode penelitian terdiri dari pengumpulan sampel, isolasi DNA, Ekstraksi DNA, Konsentrasi dan Kemurnian DNA, amplifikasi dan pengurutan PCR, Elektroforesis, Sanger Sequencing, Pengujian PCR dengan marka molekuler COI, dan analisis data bioinformatika. Hasil identifikasi spesies dari produk olahan ikan pari dan hiu asap adalah terdeteksi menggunakan hiu di antaranya spesies Carcharhinus brevipinna, Telatrygon zugei, Rhizoprionodon oligolinx, Himantura uarnacoides, Maculabatis macrura, Hydrolagus novaezealandiae, dan Rhynchobatus australiae. Rhynchobatus australiae dan Carcharhinus brevipinna adalah spesies yang terdaftar sebagai hiu dilindungi dalam CITES II. Sekuen yang didapatkan memiliki persentase kemiripan antara 99,84-100% dengan sekuen yang terdapat pada GenBank.

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Tatanagara, Muhammad Ilham, Bintal Amin, and Joko Samiaji. "Morphology, Morphometrics, and Shark Conservation Status at TPI Sibolga City, North Sumatra Province." Journal of Coastal and Ocean Sciences 3, no. 3 (September 8, 2022): 192–200. http://dx.doi.org/10.31258/jocos.3.3.192-200.

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Sharks are predatory animals that dwell near coral reefs and swim at the ocean's bottom. Since the inclusion of many shark species in CITES Appendix II status in 2013, shark groups have become a global issue. This is owing to shark fishing's high exploitation, both as a target capture and as bycatch. It is divided into eleven fisheries management areas, one of which is WPPNRI 572, according to the Regulation of the Minister of Maritime Affairs and Fisheries of the Republic of Indonesia Number 18/PERMEN-KP/2014 concerning the State Fisheries Management Area of the Republic of Indonesia, hereinafter abbreviated as WPPNRI. The Indian Ocean waters west of Sumatra, as well as the Sunda Strait, are included in this area. Because it faces the high seas, notably the Indian Ocean, Sumatra's west coast is a key area of the Indonesian sea. The city of Sibolga is strategically important as one of the key entry points for utilizing the potential of western Sumatra's waters. This study was place during August and September of 2021. The goal of this study was to identify sharks landed through TPI Sibolga City in North Sumatra Province, describe their morphology and morphometrics, and describe their conservation status using IUCN and CITES criteria. Squalus chloroculus, Nebrius ferrugineus, Carcharhinus brevipinna, Carcharhinus falciformis, Carcharhinus melanopterus, Carcharhinus sorrah, Rhizoprionodon acutus, Rhizoprionodon oligolinx, and Sphyrna lewini were among the 310 sharks successfully landed in the TPI, according to the study's findings. The overall length variable has the strongest tendency, according to the results of the Principal Component Analysis Scree Plot. C. brevipinna, C. falciformis, C. melanopterus, C. sorrah, and T. obesus are shark species with comparable morphometric features. According to the IUCN, the conservation status of S. lewini is Critical or Threatened (EN). The status of N. ferrugineus is Very Vulnerable (VU). Near Threatened (NT) status for S. chloroculus, C. brevipinna, C. falciformis, C. melanopterus, C. sorrah, and T. obesus. Less Worrying Status was assigned to R. acutus and R. oligolinx (LC). While the trading status of sharks based on CITES, particularly C. falciformis, C. melanopterus, and S. lewini, are included in the Appendix II list, which denotes species that are not threatened with extinction but could be affected if trade continues without regulation

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Rahayu, Slamet Mardiyanto. "IDENTIFIKASI IKAN DI PELABUHAN PERIKANAN TANJUNG LUAR, PULAU LOMBOK, PROVINSI NUSA TENGGARA BARAT." Jurnal Harpodon Borneo 13, no. 1 (November 25, 2020): 30–38. http://dx.doi.org/10.35334/harpodon.v13i1.1405.

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Sumberdaya ikan adalah jenis ikan termasuk biota perairan laut lainnya yang merupakan sumber kekayaan alam yang memiliki daya pulih kembali secara alami, sehingga pemanfaatannya dapat dilakukan secara berkelanjutan. Pelabuhan perikanan merupakan tempat pendaratan hasil tangkapan dan awal pemasarannya. jenis ikan hasil tangkapan nelayan yang didaratkan di Pelabuhan Perikanan Pantai Tanjung Luar, Kabupaten Lombok Timur. Penelitian dilakukan dengan metode survey dan identifikasi. Berdasarkan penelitian diperoleh sebanyak 34 jenis ikan hasil tangkapan nelayan di Pelabuhan Perikanan Tanjung Luar, Pulau Lombok, yaitu: Naso brevisrostris, Chanos chanos, Parastromateus niger, Thallasoma purpureum, Siganus canaliculatus, Plectorhinchus polytaenia, Diodon holocanthus, Upeneus vittatus, Caesio cuning, Dermogenys sp, Epinephelus areolatus, Rastrelliger sp, Pomadasys argenteus, Lepturacanthus savala, Decapterus macrosoma, Sillago sihama, Eusphyra blochii, Carcharhinus brevipinna, Carcharhinus albimarginatus, Carcharhinus limbatus, Carcharhinus obscurus, Galeocerdo cuvier, Prionace glauca, Taeniura lymma, Priancanthus hamrur, Scolopsis sp, Scombermorus guttatus, Euthynnus affinis, Nemipterus japonicas, Sardinella sp, Lutjanus bitaeniatus, Secutor interruptus, Sphyraena jello, dan Caranx ignobilis

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Lyle, JM. "Mercury and selenium concentrations in sharks from northern Australian waters." Marine and Freshwater Research 37, no. 3 (1986): 309. http://dx.doi.org/10.1071/mf9860309.

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Total mercury, alkyl mercury and selenium concentrations in the muscle tissue of 15 carcharhinid (Carcharhinus sp., C. limbatus, C. sorrah, C. fitzroyensis, C. amblyrhynchoides, C. melanopterus, C. cautus, C. amboinensis, C. macloti, C. dussumieri, C. brevipinna, Rhizoprionodon acutus, R. taylori, Galeocerdo cuvieri, Negaprion acutidens) and three hammerhead (Sphyrna lewini, S. mokarran and S. blochii) sharks from northern Australian waters are reported. Total mercury concentrations ranged widely with maximum individual concentrations exceeding 1.5 mg kg-1 wet weight in 11 species and values of over 3.0 mg kg-1 in Carcharhinus sp., C. amblyrhynchoides, C. melanopterus, C. amboinensis and S. mokarran. Much of the variability in total mercury concentration was attributable to differences in length. Total mercury was adequately correlated with fork length by the power function relationship. There were signficiant differences in these relationships for males and females of six species: males had higher concentrations of mercury than females of the same size. Weighted mean mercury concentrations were calculated using species and size composition data from commercial feasibility fishing trials. Weighted means for species other than C. sorrah, C. macloti, C. brevipinna and C. dussumieri were greater than 0.5 mg kg-1 and the value for the combined catch of all species was 1.22 mg kg-1. Alkyl mercury comprised over 80% of the total mercury content in the muscle tissue. Maximum individual selenium concentrations were greater than 1.0 mg kg-1 in nine species and the maximum concentration recorded was 3.4 mg kg-1 for C. dussumieri. There were no obvious or consistent relationships between selenium concentration and fork length or between selenium and mercury concentrations.

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Sentosa, Agus Arifin, Fahmi Fahmi, and Umi Chodrijah. "Pola Pertumbuhan dan Faktor Kondisi Hiu Merak Bulu Carcharhinus brevipinna di Perairan Selatan Nusa Tenggara." Oseanologi dan Limnologi di Indonesia 3, no. 3 (December 29, 2018): 209. http://dx.doi.org/10.14203/oldi.2018.v3i3.221.

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<strong>Growth Pattern and Condition Factor of Spinner Shark Carcharhinus brevipinna in Southern Nusa Tenggara Waters.</strong> The spinner sharks are one of shark commodities that are utilized optimally from the southern of Nusa Tenggara waters, however, the scientific information is still limited. This study aimed to assess the growth pattern and condition factors of the spinner shark, <em>Carcharhinus brevipinna</em> in southern Nusa Tenggara waters. The research was conducted from January to December 2016 using direct recording of the catch data. Information on length, weight and sex determinations were collected by the enumerator. The data was analysed descriptively with the shark condition was determined based on the relative condition factor obtaining from the length-weight relationship. The results showed that growth patterns of the spinner shark, both males and females, were allometrically negative. The relative condition factors of the catch of male sharks were ranged from 0.206 – 2.225 and females from 0.237 – 3.361. The condition factors of spinner sharks were not different between sexes and time of fishing, but they were different in length classes.

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Dos Santos, Paulo Roberto Santos, Prianka Santoro, and Luiza De David Chelotti. "LENGTH-WEIGHT RELATIONSHIP OF THE SPINNER SHARK (Carcharhinus brevipinna) ON THE CONTINENTAL SHELF OF SOUTHERN BRAZIL." Arquivos de Ciências do Mar 50, no. 2 (August 20, 2018): 133. http://dx.doi.org/10.32360/acmar.v50i2.31153.

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Aqui apresentamos, a relação peso-comprimento do tubarão-rotador (Carcharhinus brevipinna) na plataforma continental do sul do Brasil, estimada a partir de análise de 125 exemplares. Não houve diferenças significativas entre machos e fêmeas, portanto os dados foram agrupados na equação W = 0,003L3.1534. Os resultados aqui apresentados são os primeiros a abordarem tubarões acima de 75 cm e confirmam o crescimento alométrico positivo da espécie.

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Geraghty, Pascal T., William G. Macbeth, and Jane E. Williamson. "Aspects of the reproductive biology of dusky, spinner and sandbar sharks (Family Carcharhinidae) from the Tasman Sea." Marine and Freshwater Research 67, no. 4 (2016): 513. http://dx.doi.org/10.1071/mf14228.

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Increased harvest pressure exerted on sharks worldwide has created a necessity for more information concerning the basic biology of targeted species. This study marks the first dedicated assessment of the reproductive biology of Carcharhinus obscurus, C. brevipinna and C. plumbeus in eastern Australian waters, where these species support a demersal longline fishery. We found all three to be late maturing species of low reproductive output, suggestive of an overarching susceptibility to stock depletion in the region. Length- (L50, cm LT) and age-at-maturity (A50, years), for females and males were respectively 281.1 and 15.5, and 271.9 and 14.6 for C. obscurus; 224.9 and 10.1, and 208.9 and 8.5 for C. brevipinna; and, 174.8 and 9.5, and 164.5 and 7.0 for C. plumbeus. Uterine fecundity (i.e. litter size) was observed at 5–12 (=9.6), 5–14 (=10.6) and 3–12 (=7.8) for the same three species respectively, and increased significantly with maternal length in C. brevipinna. Length-at-birth (L0, cm LT) ranged from 92 to 96 for C. obscurus, 79–82 for C. brevipinna and 66–76 for C. plumbeus, and all three species exhibited lengthy gestation periods, overall embryonic sex ratios of 1:1 and synchronous parturition in autumn. However, given limitations with respect to sample size and temporal distribution inherent in this study, the reproductive parameters defined herein are necessarily preliminary. Nevertheless, this research challenges a range of findings emanating from other parts of the world and, in doing so, raises pertinent questions relating to the resilience to targeted fishing activities of these species in New South Wales waters compared to other oceanic regions. Moreover, it reinforces the importance of locally derived demographic parameters for population modelling and stock assessment.

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Geraghty, Pascal T., Jane E. Williamson, William G. Macbeth, Sabine P. Wintner, Alastair V. Harry, Jennifer R. Ovenden, and Michael R. Gillings. "Population Expansion and Genetic Structure in Carcharhinus brevipinna in the Southern Indo-Pacific." PLoS ONE 8, no. 9 (September 25, 2013): e75169. http://dx.doi.org/10.1371/journal.pone.0075169.

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MOORE, ALEC B. M., ROBERT D. WARD, and RICHARD PEIRCE. "Sharks of the Persian (Arabian) Gulf: a first annotated checklist (Chondrichthyes: Elasmobranchii)." Zootaxa 3167, no. 1 (January 20, 2012): 1. http://dx.doi.org/10.11646/zootaxa.3167.1.1.

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The first evidence-based checklist of sharks of the Persian (Arabian) Gulf is presented based on appraisal of primary lit-erature and new data, including identifications verified by COI barcoding. Evidence of the occurrence of 26 species in theGulf is presented, and the possible presence of a further 17 species is discussed. Carcharhinidae is the most species-richfamily (16 species) present. The first substantiated Gulf records of the spinner shark Carcharhinus brevipinna, blacktipreef shark C. melanopterus¸ and scalloped hammerhead Sphyrna lewini are provided, along with a new record of the rarelyreported grey nurse shark Carcharias taurus. The diversity of the Gulf’s shark fauna, and possible influences on it, are briefly discussed.

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Wintner, Sabine P., and Sven E. Kerwath. "Cold fins, murky waters and the moon: what affects shark catches in the bather-protection program of KwaZulu–Natal, South Africa?" Marine and Freshwater Research 69, no. 1 (2018): 167. http://dx.doi.org/10.1071/mf17126.

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The influence of environmental variables on shark catch in the bather-protection program along the eastern coast of South African was investigated for 11 commonly caught species (Carcharhinus limbatus, C. obscurus, C. brachyurus, C. plumbeus, C. brevipinna, C. leucas, Carcharodon carcharias, Carcharias taurus, Sphyrna lewini, S. zygaena, Galeocerdo cuvier). Data for the period 1986–1994 were analysed using generalised additive models and generalised additive mixed models. The influence of temporal and spatial factors was respectively considered and removed within a standardisation procedure to investigate and predict the influence of lunar cycle, sea-surface temperature (SST) and water visibility on daily catch. The catches of C. taurus and C. brevipinna were significantly affected by all three factors. Catches of all other species were affected by at least one of the three factors, e.g. six were affected by lunar phase, six by SST and seven by water visibility. The results suggested that measurable, predictable relationships exist between environmental conditions and presence and, consequently, catch of shark species in this program. Understanding these relationships could be useful to mitigate against unwanted catch and to further reduce risk for bathers.

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Pirog, Agathe, Sébastien Jaquemet, Antonin Blaison, Marc Soria, and Hélène Magalon. "Isolation and characterization of eight microsatellite loci fromGaleocerdo cuvier(tiger shark) and cross-amplification inCarcharhinus leucas, Carcharhinus brevipinna,Carcharhinus plumbeusandSphyrna lewini." PeerJ 4 (May 17, 2016): e2041. http://dx.doi.org/10.7717/peerj.2041.

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The tiger sharkGaleocerdo cuvier(Carcharhinidae) is a large elasmobranch suspected to have, as other apex predators, a keystone function in marine ecosystems and is currently considered Near Threatened (Red list IUCN). Knowledge on its ecology, which is crucial to design proper conservation and management plans, is very scarce. Here we describe the isolation of eight polymorphic microsatellite loci using 454 GS-FLX Titanium pyrosequencing of enriched DNA libraries. Their characteristics were tested on a population of tiger shark (n= 101) from Reunion Island (South-Western Indian Ocean). All loci were polymorphic with a number of alleles ranging from two to eight. No null alleles were detected and no linkage disequilibrium was detected after Bonferroni correction. Observed and expected heterozygosities ranged from 0.03 to 0.76 and from 0.03 to 0.77, respectively. No locus deviated from Hardy-Weinberg equilibrium and the globalFISof the population was of 0.04NS. Some of the eight loci developed here successfully cross-amplified in the bull sharkCarcharhinus leucas(one locus), the spinner sharkCarcharhinus brevipinna(four loci), the sandbar sharkCarcharhinus plumbeus(five loci) and the scalloped hammerhead sharkSphyrna lewini(two loci). We also designed primers to amplify and sequence a mitochondrial marker, the control region. We sequenced 862 bp and found a low genetic diversity, with four polymorphic sites, a haplotype diversity of 0.15 and a nucleotide diversity of 2 × 10−4.

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Sarmiento-Camacho, Stephanie, and Martha Valdez-Moreno. "DNA barcode identification of commercial fish sold in Mexican markets." Genome 61, no. 6 (June 2018): 457–66. http://dx.doi.org/10.1139/gen-2017-0222.

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The substitution of high-value fish species for those of lower value is common practice. Although numerous studies have addressed this issue, few have been conducted in Mexico. In this study, we sought to identify fresh fillets of fish, sharks, and rays using DNA barcodes. We analyzed material from “La Viga” in Mexico City, and other markets located on the Gulf and Caribbean coasts of Mexico. From 134 samples, we obtained sequences from 129, identified to 9 orders, 28 families, 38 genera, and 44 species. The most common species were Seriola dumerili, Pangasianodon hypophthalmus, Carcharhinus falciformis, Carcharhinus brevipinna, and Hypanus americanus. Pangasianodon hypophthalmus was most commonly used as a substitute for higher-value species. The substitution rate was 18% of the total. A review of the conservation status of the specimens identified against the IUNC list enabled us to establish that some species marketed in Mexico are threatened: Makaira nigricans, Lachnolaimus maximus, Hyporthodus flavolimbatus, and Isurus oxyrinchus are classified as vulnerable; Lopholatilus chamaeleonticeps and Sphyrna lewini are endangered; and the status of Hyporthodus nigritus is critical. These results will demonstrate to the Mexican authorities that DNA barcoding is a reliable tool for species identification, even when morphological identification is difficult or impossible.

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CAPAPÉ, CHRISTIAN, AMADOU ABDOULAYE SECK, YOUSSOUPH DIATTA, c. YOUSSOUPH DIATTA, JEANNE ZAOUALI, and FARID HEMIDA. "DISTRIBUTION AND REPRODUCTIVE BIOLOGY OF THE SPINNER SHARK, CARCHARHINUS BREVIPINNA (MÜLLER AND HENLE, 1841) (CHONDRICHTHYES: CARCHARHINIDAE)." Israel Journal of Zoology 49, no. 4 (April 1, 2003): 269–86. http://dx.doi.org/10.1560/dhhm-a68m-vkqh-cy9f.

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Taylor, Stephen, Wayne Sumpton, and Tony Ham. "Fine-scale spatial and seasonal partitioning among large sharks and other elasmobranchs in south-eastern Queensland, Australia." Marine and Freshwater Research 62, no. 6 (2011): 638. http://dx.doi.org/10.1071/mf10154.

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Our understanding of the ecological role of larger elasmobranchs is limited by a lack of information on their spatial and seasonal abundance. Analysis of 14 years of gill-net catch data in south-eastern Queensland, Australia, revealed that the species composition of large sharks and other elasmobranchs significantly differed among beaches and seasons. Spinner sharks (Carcharhinus brevipinna) and hammerhead sharks (Sphyrna spp.) comprised nearly half the catch of all elasmobranchs. Although the distribution of these sharks overlapped, spatial variation existed in their abundance. Spinner sharks characterised the catch at Sunshine Coast beaches, whereas the catch at Gold Coast beaches was dominated by hammerhead sharks. Seasonal differences in elasmobranch community structure were also apparent, driven largely by a lower abundance of many species during the winter and the predominance of species such as spinner sharks and hammerheads in spring and summer. The present study provides the first quantitative data for numerous species of Carcharhiniformes in south-eastern Queensland and demonstrates that analysis of catch-rate data can improve our understanding of how larger sharks partition resources.

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Geraghty, Pascal T., William G. Macbeth, Alastair V. Harry, Jacqueline E. Bell, Michelle N. Yerman, and Jane E. Williamson. "Age and growth parameters for three heavily exploited shark species off temperate eastern Australia." ICES Journal of Marine Science 71, no. 3 (November 13, 2013): 559–73. http://dx.doi.org/10.1093/icesjms/fst164.

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Abstract The removal of large predatory sharks from the world's oceans poses profound threats to marine community structure and species conservation. Effective management of exploited shark stocks requires a sound understanding of the life histories of target species. Here we provide the first assessment of age and growth for Carcharhinus brevipinna in Australian waters, and for C. obscurus and C. plumbeus in eastern Australian waters, based on interpretations of vertebral growth bands. In doing so, we provide arguably among the most robust growth parameters to date for the abovementioned taxa on the bases of genetic validation and sample size and distribution, but acknowledge equally a range of limitations—most notably those associated with vertebral ageing and our lack of age validation. Comparatively, the three species displayed both contrasts and consistencies in their growth characteristics off Australia's southeast coast. For all three sharks, rates of growth were greatest in the years immediately after birth, males grew more rapidly than females in the juvenile phase, and females were observed to grow larger, live longer and were generally larger at any given age. Longevity and all modelled growth parameters (L∞, k and L0), however, differed among the three species, and appeared to challenge the findings for conspecific populations in other parts of the world. The validity of these latter comparisons is, however, compromised by a range of confounding factors. Nevertheless, we provide the least conservative k estimates for C. obscurus and C. plumbeus of those previously reported, and extend maximum age estimates for C. brevipinna. In this way, our results have important implications for the assessment of natural mortality, productivity, and hence resilience to stock depletion, in these species in southeastern Australian waters.

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Branstetter, Steven. "Age and Growth Estimates for Blacktip, Carcharhinus limbatus, and Spinner, C. brevipinna, Sharks from the Northwestern Gulf of Mexico." Copeia 1987, no. 4 (December 9, 1987): 964. http://dx.doi.org/10.2307/1445560.

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SAIDI, BÉCHIR, SAMIRA ENAJJAR, SAMI KARAA, KHALED ECHWIKHI, IMED JRIBI, and MOHAMED NEJMEDDINE BRADAI. "Shark pelagic longline fishery in the Gulf of Gabes: Inter-decadal inspection reveals management needs." Mediterranean Marine Science 20, no. 3 (September 2, 2019): 532. http://dx.doi.org/10.12681/mms.18862.

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This study explores the status of exploited shark populations in the Gulf of Gabes in relation to fishing pressure, based on data pertaining to shark longline fishery, collected during two periods. Catch data from 48 and 96 pelagic longline sets collected, respectively, during 2007/2008 and 2016/2017, were used to compare species composition and catch rates between periods. Four species were recorded during 2007/2008, while 11 additional species of pelagic and demersal elasmobranchs along with teleosts were fished during 2016/2017. Elasmobranch species dominated the catches with 94% and 99.3% in terms of specimens number, respectively, during 2016/2017 and 2007/2008. The sandbar shark, Carcharhinus plumbeus, was the predominant species in catch (>84% of all fishes) during both periods. Two other species of sharks, Carcharhinus brevipinna and Isurus oxyrinchus, were relatively common, while the other species were a minor component. Despite the increase in terms of diversity pertaining to species captured during 2016/2017, the nominal catch rates of elasmobranch and C. plumbeus decreased by 39.17% and 42.21%, respectively, suggesting populations’ declines. In addition, size distribution analyses revealed that this fishery may opportunistically operate on breeding and nursery areas, which affect main species over most of their life stages. The mortality and hooking location proportions were species-specific, with some species having significant percentages of live specimens at the time of haulback, providing an opportunity to release the sensitive life stages. Given the described state of shark exploitations in the Gulf of Gabes, urgent and efficient fishery regulation measures and conservation strategies, together with further investigations, are required to allow changing the unregulated shark longline fishery to a sustainable one.

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Whitney, Nicholas M., Karissa O. Lear, John J. Morris, Robert E. Hueter, John K. Carlson, and Heather M. Marshall. "Connecting post-release mortality to the physiological stress response of large coastal sharks in a commercial longline fishery." PLOS ONE 16, no. 9 (September 15, 2021): e0255673. http://dx.doi.org/10.1371/journal.pone.0255673.

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Bycatch mortality is a major factor contributing to shark population declines. Post-release mortality (PRM) is particularly difficult to quantify, limiting the accuracy of stock assessments. We paired blood-stress physiology with animal-borne accelerometers to quantify PRM rates of sharks caught in a commercial bottom longline fishery. Blood was sampled from the same individuals that were tagged, providing direct correlation between stress physiology and animal fate for sandbar (Carcharhinus plumbeus, N = 130), blacktip (C. limbatus, N = 105), tiger (Galeocerdo cuvier, N = 52), spinner (C. brevipinna, N = 14), and bull sharks (C. leucas, N = 14). PRM rates ranged from 2% and 3% PRM in tiger and sandbar sharks to 42% and 71% PRM in blacktip and spinner sharks, respectively. Decision trees based on blood values predicted mortality with >67% accuracy in blacktip and spinner sharks, and >99% accuracy in sandbar sharks. Ninety percent of PRM occurred within 5 h after release and 59% within 2 h. Blood physiology indicated that PRM was primarily associated with acidosis and increases in plasma potassium levels. Total fishing mortality reached 62% for blacktip and 89% for spinner sharks, which may be under-estimates given that some soak times were shortened to focus on PRM. Our findings suggest that no-take regulations may be beneficial for sandbar, tiger, and bull sharks, but less effective for more susceptible species such as blacktip and spinner sharks.

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Dippenaar, Susan M., George W. Benz, and Pieter A. S. Olivier. "Kroyeria deetsi n.sp. (Kroyeriidae: Siphonostomatoida), a parasitic copepod infecting gills of spinner sharks, Carcharhinus brevipinna (Müller & Henle, 1839), in the Indian Ocean." African Zoology 35, no. 2 (October 2000): 185–92. http://dx.doi.org/10.1080/15627020.2000.11657089.

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Mopay, Maratade, Stenly Wullur, and Erly Kaligis. "Identifikasi molekuler sirip ikan hiu yang didapat dari pengumpul sirip di Minahasa." JURNAL PESISIR DAN LAUT TROPIS 5, no. 2 (February 6, 2017): 1. http://dx.doi.org/10.35800/jplt.5.2.2017.15044.

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Hiu adalah jenis ikan yang sangat rentan terhadap penangkapan secara berlebihan karena umumnya ikan ini memiliki pertumbuhan yang lambat dan tingkat reproduksi yang rendah. Tingginya aktifitas perdagangan sirip ikan hiu menjadi masalah serius dalam menjaga keseimbangan ekosistem laut. Penelitian ini bertujuan untuk mengidentifikasi sirip ikan hiu yang didapat dari pengumpul sirip di Tanawangko, Minahasa berdasarkan karakter nukleotida gen COI (Cytcrochrome oxidase subunit I). Metode ekstraksi DNA dilakukan mengikuti prosedur Dneasy Blood & Tissue Kit qiagen, amplifikasi gen COI menggunakan primer Forward FishBCL5 (TCAACYAATCAYAAAGATATYGGCAC) dan Reverse HCO2198 (TAAACTTCAGGGTGACCA AAAAATCA), sekuens dianalisa menggunakan ABsequence3 dan MEGA ver6, identifikasi spesies dilakukan menggunakan BLAST yang terintegrasi di laman GanBank. Sebanyak 4 potong sirip hiu dari individu berbeda berhasil didapatkan dari pengumpul sirip di Tanawangko, Minahasa. Hasil BLAST menunjukan bahwa ke 4 sirip tersebut berasal dari spesies hiu; Carcharhinus amblyrhynchos, Prionace glauca, Carcharhinus sorrah, dan Carchahinus brevipina

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Wardono, Suko, Santoso Budi Widiarto, Achmad Rifqy Ramadhan, and Hendrik Sombo. "POTENSI DAN PEMANFAATAN HIU DI WPPNRI 717 KHUSUSNYA DI PERAIRAN KABUPATEN BIAK NUMFOR." PROSIDING SEMINAR NASIONAL PERIKANAN INDONESIA, December 27, 2022, 323. http://dx.doi.org/10.15578/psnp.11955.

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Aktifitas penangkapan hiu yang semakin marak dipicu oleh tingginya permintaan pasar terhadap komoditas produk hiu khususnya produk sirip, hiu biasanya menjadi tangkapan target maupun tangkapan sampingan bagi nelayan. Meningkatnya produksi tangkapan di Sentra Kelautan dan Perikanan Terpadu (SKPT) Biak Numfor, menjadi tantangan tersediri dalam pengelolaan penangkapan hiu di WPPNRI 717 khususnya di perairan Kabupaten Biak Numfor. Penelitian ini dimaksudkan untuk mengidentifikasi potensi perikanan hiu dengan menggunakan metode observer on board atau pengamatan secara langsung di atas kapal penangkapan ikan dengan pancing rawai hanyut. Observasi meliputi pencatatan jumlah tangkapan harian, jenis ikan, morfometrik (panjang total, panjang baku, panjang klasper dan berat), dan data harian GPS kapal. Hasil Penelitian menunjukkan bahwa selama enam bulan diperoleh akumulasi luas area penangkapan sekitar 23.335 km2. Ditemukan dua jenis hiu Appendiks II CITES yakni Carcharhinus falciformis sebanyak 1.513 ekor dan Sphyrna lewini 5 Ekor, serta dua jenis Non Appendiks CITES yakni Carcharhinus brevipinna 21 Ekor dan Carcharhinus amblyrhynchos 88 ekor. Panjang total hiu secara umum berkisar antara 140 – 234 cm dengan berat 35 – 66 kg. Sampling pengukuran panjang total pada jenis Carcharhinus falciformis menunjukkan bahwa 75,6% hiu yang tertangkap telah mencapai kematangan seksual. Data perdagangan produk sirip yang dilalulintaskan dari Kabupaten Biak Numfor berjumlah total 2.868,5 kg, dengan produk hiu Non Appendiks CITES terbanyak jenis Carcharhinus amblyrhynchos sebanyak 910 kg dan produk Hiu Appendiks II CITES terbanyak jenis Carcharhinus falciformis sebanyak 795,5 kg.

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Livernois, Mariah C., John A. Mohan, Thomas C. TinHan, Travis M. Richards, Brett J. Falterman, Nathan R. Miller, and R. J. David Wells. "Ontogenetic Patterns of Elemental Tracers in the Vertebrae Cartilage of Coastal and Oceanic Sharks." Frontiers in Marine Science 8 (August 6, 2021). http://dx.doi.org/10.3389/fmars.2021.704134.

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As predators, coastal and oceanic sharks play critical roles in shaping ecosystem structure and function, but most shark species are highly susceptible to population declines. Effective management of vulnerable shark populations requires knowledge of species-specific movement and habitat use patterns. Since sharks are often highly mobile and long-lived, tracking their habitat use patterns over large spatiotemporal scales is challenging. However, the analysis of elemental tracers in vertebral cartilage can describe a continuous record of the life history of an individual from birth to death. This study examined trace elements (Li, Mg, Mn, Zn, Sr, and Ba) along vertebral transects of five shark species with unique life histories. From most freshwater-associated to most oceanic, these species include Bull Sharks (Carcharhinus leucas), Bonnethead Sharks (Sphyrna tiburo), Blacktip Sharks (Carcharhinus limbatus), Spinner Sharks (Carcharhinus brevipinna), and Shortfin Mako Sharks (Isurus oxyrinchus). Element concentrations were compared across life stages (young-of-the-year, early juvenile, late juvenile, and adult) to infer species-specific ontogenetic patterns of habitat use and movement. Many of the observed elemental patterns could be explained by known life history traits: C. leucas exhibited clear ontogenetic changes in elemental composition matching expected changes in their use of freshwater habitats over time. S. tiburo elemental composition did not differ across ontogeny, suggesting residence in estuarine/coastal regions. The patterns of elemental composition were strikingly similar between C. brevipinna and C. limbatus, suggesting they co-occur in similar habitats across ontogeny. I. oxyrinchus elemental composition was stable over time, but some ontogenetic shifts occurred that may be due to changes in migration patterns with maturation. The results presented in this study enhance our understanding of the habitat use and movement patterns of coastal and oceanic sharks, and highlights the applicability of vertebral chemistry as a tool for characterizing shark life history traits.

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"Correction: Population Expansion and Genetic Structure in Carcharhinus brevipinna in the Southern Indo-Pacific." PLoS ONE 9, no. 4 (April 9, 2014): e94738. http://dx.doi.org/10.1371/journal.pone.0094738.

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Ayas, Deniz, Nuray Çiftçi, and Hasan Deniz Akbora. "New Record of Carcharhinus brevipinna (Müller & Henle, 1839) from Mersin Bay, the Northeastern Mediterranean." Natural and Engineering Sciences, November 13, 2019, 268–75. http://dx.doi.org/10.28978/nesciences.646334.

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SINGH, Nongmaithem Amardas, Deepak CHOUDHARY, Y. Priyananda SINGH, Ningthoujam Premjit SINGH, Rajeev PATNAIK, R. P. TIWARI, and K. Milankumar SHARMA. "Chondrichthyan and osteichthyan fauna from the middle Miocene deposits of Palasava, Kutch, India:implication for paleoenvironment and paleobiogeography." Comptes Rendus Palevol, no. 43 (December 14, 2022). http://dx.doi.org/10.5852/cr-palevol2022v21a43.

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The Neogene of Kutch, India is well known for its rich marine and terrestrial vertebrate assemblages. However, the data of piscean fauna from the middle Miocene of India is very scarce. We report here additional chondrichthyan and osteichthyan remains from the middle Miocene deposit of Chhasra Formation, Palasava site, Kutch, Gujarat, India. The elasmobranchs include Carcharhinus Blainville, 1816 (C. brevipinna (Müller & Henle, 1839), C. falciformis (Müller & Henle, 1839), C. cf. leucas, C. aff. perezi, Carcharhinus sp.), Negaprion Whitley, 1940 (Negaprion sp.), Aetobatus Blainville, 1816 (Aetobatus sp.), Myliobatis Cuvier, 1816 (Myliobatis sp.), Dasyatis Rafinesque, 1810 (D. probsti Cappetta, 1970, D. rugosa Probst, 1877), Himantura Müller & Henle, 1837 (H. menoni Sahni & Mehrotra, 1981), Pastinachus Rüppell, 1829 (Pastinachus sp.), and Taeniurops Garman, 1913 (Taeniurops sp.). The teleosts of Palasava are represented by four families including Bagridae Bleeker, 1858, Channidae Fowler, 1934, Characidae Latreille, 1925 and Cyprinidae Cuvier, 1817. Sørensen-Dice coefficient data of Palasava elasmobranchs show a good similarity index with their counterparts in the Mediterranean Sea suggesting the existence of short-lived reopening of the marine pathway. However, a much higher faunal affinity with those of Eastern Pacific indicates a gradual shift in migration path through the Pacific Ocean to Indo-Pacific region after the permanent landbridge was formed. The vertebrate fauna from the Palasava suggests a coastal, marginal marine, near-shore littoral to neritic environment of deposition with the influence of freshwater riverine system. The integration of the floras and faunas from Palasava locality indicates the presence of warm, humid/wet, tropical to sub-tropical environmental conditions during the middle Miocene.

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SUMPTON, WAYNE. "Characteristics of the Biology and Distribution of the Spinner Shark (Carcharhinus brevipinna) in Queensland, Australia Based on Data Collected from the Shark Control Program." Asian Fisheries Science 23, no. 3 (December 15, 2010). http://dx.doi.org/10.33997/j.afs.2010.23.3.006.

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Van Der Spuy, Linda, Nico J. Smit, Kristina Naidoo, and Bjoern C. Schaeffner. "A new species of Phoreiobothrium Linton, 1889 (Cestoda: Onchoproteocephalidea) from the spinner shark, Carcharhinus brevipinna (Valenciennes) off the coast of KwaZulu-Natal, South Africa." Systematic Parasitology, November 27, 2022. http://dx.doi.org/10.1007/s11230-022-10077-x.

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Journal articles on the topic 'Carcharhinus brevipinna'

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