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Статті в журналах з теми "Sharks Australia Embryology":

1
Séret, Bernard. "Sharks and rays of Australia." Marine Biology Research 6, no. 4 (July 2010): 417–20. http://dx.doi.org/10.1080/17451000903505624.
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2
Recher, Harry F. "Sharks and Rays of Australia." Pacific Conservation Biology 17, no. 1 (2011): 21. http://dx.doi.org/10.1071/pc110021.
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THE first edition of Sharks and Rays of Australia was published in 1994. This second edition is fully revised, with descriptions of 322 species of sharks, skates, rays, and chimaerids. Since 1994, the Class Chondrichthyes has been extensively revised and the second edition of Sharks and Rays of Australia includes 26 species that have been formally described since the first edition, with formal classification of 97 species that were previously given temporary names. Names of other species have also been revised in light of new knowledge of the systematics within this important group of fish.
3
Springer, Victor G., P. R. Last, and J. D. Stevens. "Sharks and Rays of Australia." Copeia 1994, no. 4 (December 1994): 1055. http://dx.doi.org/10.2307/1446735.
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4
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.
5
Catlin, James, Michael Hughes, Tod Jones, and Roy Jones. "White sharks in Western Australia: threat or opportunity?" Journal of Ecotourism 13, no. 2-3 (September 2014): 159–69. http://dx.doi.org/10.1080/14724049.2015.1007868.
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6
Bansemer, C. S., and M. B. Bennett. "Retained fishing gear and associated injuries in the east Australian grey nurse sharks (Carcharias taurus): implications for population recovery." Marine and Freshwater Research 61, no. 1 (2010): 97. http://dx.doi.org/10.1071/mf08362.
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Incidental hooking of Carcharias taurus is a threat to their populations’ recovery on the east coast of Australia. Photo-identification techniques were used to investigate the frequency of hooking at 25 aggregation sites along the east coast of Australia between 2006 and 2008. Of the 673 sharks identified, 113 sharks were identified with signs of 119 incidences of hooking. For sharks with both their left and right flank photographed during a single survey day, up to 29% of females and 52% of males were identified with retained fishing gear or an attributed jaw injury. The largest number of sharks identified (222) were from a year-round aggregation of immature and mature sharks at Fish Rock, New South Wales, Australia. Forty-eight per cent of all sharks identified with retained fishing gear were first identified at this site. Fish Rock, a designated critical habitat for C. taurus, allows most forms of line fishing except fishing with bait or wire trace while anchored or moored. As interactions with fishing gear can result in debilitating disease, morbidity and death, the high incidence of hooked individual C. taurus is considered a key threatening process that is likely to reduce this shark population’s ability to recover.
7
Braccini, Matias. "Temporal patterns in the size of the main commercial shark species of Western Australia." Marine and Freshwater Research 68, no. 6 (2017): 1112. http://dx.doi.org/10.1071/mf16117.
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Declines in the mean size of harvested organisms may indicate overexploitation. In the present study, temporal patterns in the mean size of the four main commercial shark species of Western Australia were evaluated. Unlike commonly observed for other shark populations, there were no strong temporal patterns in the mean size of gummy, dusky and whiskery sharks, whereas the mean size of sandbar sharks showed a gradual increase since 1993. These observations add further evidence that sharks can be fished sustainably when adequate monitoring, assessment and management actions are implemented.
8
Stevens, JD. "Blue and Mako Shark by-catch in the Japanese Longline Fishery off South-eastern Australia." Marine and Freshwater Research 43, no. 1 (1992): 227. http://dx.doi.org/10.1071/mf9920227.
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During the last 10 years, up to 70 Japanese longline vessels have fished Tasmanian waters of the Australian Fishing Zone each season, targeting bluefin tuna (Thunnus maccoyii). The average seasonal fishing effort in Tasmanian waters is about 3.3 million hooks, and data from observers suggests that, this results in a by-catch of some 34 000 blue sharks (Prionace glauca) each year, representing a weight of about 275 tonnes. In the last few years, fishing effort has increased as the catch rates of southern bluefin tuna have declined. The sharks are discarded after removal of the fins. The actual number of blue sharks hooked is much higher than 34000 because many are released by either shaking or cutting them off the line, although they are often damaged in the process. The majority of blue sharks caught are immature or adolescent females. Smaller numbers of shortfin mako sharks (Isurus oxyrinchus) are also caught and retained both for their fins and their meat. Tasmanian waters represent only one area of the Australian Fishing Zone fished by Japanese longliners.
9
Taylor, JG. "Seasonal occurrence, distribution and movements of the whale shark, Rhincodon typus, at Ningaloo Reef, Western Australia." Marine and Freshwater Research 47, no. 4 (1996): 637. http://dx.doi.org/10.1071/mf9960637.
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Aerial surveys between 1989 and 1992 demonstrated that large numbers of whale sharks appear on Ningaloo Reef in north-western Australia during autumn, shortly after the coral has undergone mass spawning. This movement into the reef waters would allow whale sharks to capitalize on the increased production of zooplankton brought about as a result of this mass spawning of corals and other marine organisms. Sharks occupied mainly the relatively turbid waters on the reef front, where a northerly current prevailed, rather than the offshore, warmer waters of the southerly flowing Leeuwin Current. The sharks moved in to the reef front from offshore but, once inshore, the majority swam parallel to the reef. The maximum density in any sector of the reef at any one time was four sharks per km, recorded in May 1992. The longer the time since sharks first appeared on the reef, the greater was their tendency to aggregate in a particular region of the reef. Evidence is presented that indicates that whale shark numbers at the northern end of Ningaloo Reef declined during the latter half of the 1980s; this decline may be related to the massive destruction of coral by the gastropod mollusc Drupella cornus during this period.
10
Braccini, Matias, and Stephen Taylor. "The spatial segregation patterns of sharks from Western Australia." Royal Society Open Science 3, no. 8 (August 2016): 160306. http://dx.doi.org/10.1098/rsos.160306.
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The extent to which sharks segregate by size and sex determines the population structure and the scale at which populations should be managed. We summarized 20 years of fisheries-dependent and independent sampling to define the spatial patterns of size and sexual segregation for sharks in Western Australia. Carcharhinus obscurus and C. plumbeus showed a large-scale (more than 1000 km) latitudinal gradient in size. Large individuals occurred predominantly in the northwest and north whereas smaller individuals occurred predominantly in the southwest and south. Mustelus antarcticus and Furgaleus macki showed strong sexual segregation at very large scales. Females occurred predominantly in the west and southwest whereas the proportion of males in catches substantially increased in the southeast. The populations of other shark species did not show sex and size segregation patterns at very large scales; most species, however, showed varying degrees of segregation when data were analysed at a smaller scale. These findings highlight the importance of matching the scale of observation to the scale of the phenomenon observed. As many shark species are highly mobile, if sampling is opportunistic and constrained both temporally and spatially, the observed segregation patterns may not be representative of those at the population level, leading to inaccurate scientific advice.

Дисертації з теми "Sharks Australia Embryology":

1
Forrest, Robyn Elizabeth. "Simulation models for estimating productivity and trade-offs in the data-limited fisheries of New South Wales, Australia." Electronic Thesis or Dissertation, University of British Columbia, 2001. http://hdl.handle.net/2429/3417.
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Recent shifts towards ecosystem based fisheries management (EBFM) around the world have necessitated consideration of effects of fishing on a larger range of species than previously. Non-selective multispecies fisheries are particularly problematic for EBFM, as they can contribute to erosion of ecosystem structure. The trade-off between catch of productive commercial species and abundance of low-productivity species is unavoidable in most multispecies fisheries. A first step in evaluation of this trade-off is estimation of productivity of different species but this is often hampered by poor data. This thesis develops techniques for estimating productivity for data-limited species and aims to help clarify EBFM policy objectives for the fisheries of New South Wales (NSW), Australia. It begins with development of an age-structured model parameterised in terms of optimal harvest rate, UMSY. UMSY is a measure of productivity, comparable among species and easily communicated to managers. It also represents a valid threshold for prevention of overfishing. The model is used to derive UMSY for 54 Atlantic fish stocks for which recruitment parameters had previously been estimated. In most cases, UMSY was strongly limited by the age at which fish were first caught. However, for some species, UMSY was more strongly constrained by life history attributes. The model was then applied to twelve species of Australian deepwater dogshark (Order Squaliformes), known to have been severely depleted by fishing. Results showed that the range of possible values of UMSY for these species is very low indeed. These findings enabled a preliminary stock assessment for three dogsharks (Centrophorus spp.) currently being considered for threatened species listing. Preliminary results suggest they have been overfished and that overfishing continues. Finally, an Ecopath with Ecosim ecosystem model, representing the 1976 NSW continental slope, is used to illustrate trade-offs in implementation of fishing policies under alternative policy objectives. Results are compared with those of a biogeochemical ecosystem model (Atlantis) of the same system, built by scientists from CSIRO. While there were large differences in model predictions for individual species, they gave similar results when ranking alternative fishing policies, suggesting that ecosystem models may be useful for exploring broad-scale strategic management options.
2
Forrest, Robyn Elizabeth. "Simulation models for estimating productivity and trade-offs in the data-limited fisheries of New South Wales, Australia." Electronic Thesis or Dissertation, University of British Columbia, 2001. http://hdl.handle.net/2429/3417.
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Recent shifts towards ecosystem based fisheries management (EBFM) around the world have necessitated consideration of effects of fishing on a larger range of species than previously. Non-selective multispecies fisheries are particularly problematic for EBFM, as they can contribute to erosion of ecosystem structure. The trade-off between catch of productive commercial species and abundance of low-productivity species is unavoidable in most multispecies fisheries. A first step in evaluation of this trade-off is estimation of productivity of different species but this is often hampered by poor data. This thesis develops techniques for estimating productivity for data-limited species and aims to help clarify EBFM policy objectives for the fisheries of New South Wales (NSW), Australia. It begins with development of an age-structured model parameterised in terms of optimal harvest rate, UMSY. UMSY is a measure of productivity, comparable among species and easily communicated to managers. It also represents a valid threshold for prevention of overfishing. The model is used to derive UMSY for 54 Atlantic fish stocks for which recruitment parameters had previously been estimated. In most cases, UMSY was strongly limited by the age at which fish were first caught. However, for some species, UMSY was more strongly constrained by life history attributes. The model was then applied to twelve species of Australian deepwater dogshark (Order Squaliformes), known to have been severely depleted by fishing. Results showed that the range of possible values of UMSY for these species is very low indeed. These findings enabled a preliminary stock assessment for three dogsharks (Centrophorus spp.) currently being considered for threatened species listing. Preliminary results suggest they have been overfished and that overfishing continues. Finally, an Ecopath with Ecosim ecosystem model, representing the 1976 NSW continental slope, is used to illustrate trade-offs in implementation of fishing policies under alternative policy objectives. Results are compared with those of a biogeochemical ecosystem model (Atlantis) of the same system, built by scientists from CSIRO. While there were large differences in model predictions for individual species, they gave similar results when ranking alternative fishing policies, suggesting that ecosystem models may be useful for exploring broad-scale strategic management options.
3
Forrest, Robyn Elizabeth. "Simulation models for estimating productivity and trade-offs in the data-limited fisheries of New South Wales, Australia." Thesis/Dissertation, University of British Columbia, 2001. http://hdl.handle.net/2429/3417.
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Recent shifts towards ecosystem based fisheries management (EBFM) around the world have necessitated consideration of effects of fishing on a larger range of species than previously. Non-selective multispecies fisheries are particularly problematic for EBFM, as they can contribute to erosion of ecosystem structure. The trade-off between catch of productive commercial species and abundance of low-productivity species is unavoidable in most multispecies fisheries. A first step in evaluation of this trade-off is estimation of productivity of different species but this is often hampered by poor data. This thesis develops techniques for estimating productivity for data-limited species and aims to help clarify EBFM policy objectives for the fisheries of New South Wales (NSW), Australia. It begins with development of an age-structured model parameterised in terms of optimal harvest rate, UMSY. UMSY is a measure of productivity, comparable among species and easily communicated to managers. It also represents a valid threshold for prevention of overfishing. The model is used to derive UMSY for 54 Atlantic fish stocks for which recruitment parameters had previously been estimated. In most cases, UMSY was strongly limited by the age at which fish were first caught. However, for some species, UMSY was more strongly constrained by life history attributes. The model was then applied to twelve species of Australian deepwater dogshark (Order Squaliformes), known to have been severely depleted by fishing. Results showed that the range of possible values of UMSY for these species is very low indeed. These findings enabled a preliminary stock assessment for three dogsharks (Centrophorus spp.) currently being considered for threatened species listing. Preliminary results suggest they have been overfished and that overfishing continues. Finally, an Ecopath with Ecosim ecosystem model, representing the 1976 NSW continental slope, is used to illustrate trade-offs in implementation of fishing policies under alternative policy objectives. Results are compared with those of a biogeochemical ecosystem model (Atlantis) of the same system, built by scientists from CSIRO. While there were large differences in model predictions for individual species, they gave similar results when ranking alternative fishing policies, suggesting that ecosystem models may be useful for exploring broad-scale strategic management options.
Science, Faculty of
Resources, Environment and Sustainability (IRES), Institute for
Graduate
4
Söderblom, Fredrik. "Disparity of Early Cretaceous Lamniformes sharks." Student thesis, Uppsala universitet, Institutionen för geovetenskaper, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-256605.
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The geological range of lamniform sharks stretches from present day species such as Carcharodon carcharias (great white shark) back to the at the moment oldest undoubted fossil finds during the Early Cretaceous. In this paper a geometric morphometric analysis was performed on images of Early Cretaceous lamniform teeth collected from published literature in order to examine the change in disparity (range of morphological variation within a group) throughout the time period. Due to limited availability of published material and time constraints only the Barremian and Albian ages were investigated. The Barremian exhibited tall and narrow tooth morphologies while the Albian showed a wide range of morphological variation including more robust, wide and sometimes triangular shapes but also displayed further specialization of the tall and narrow forms. This change is likely indicative of a dietary and ecological expansion from only eating for example small fish and soft-bodied creatures to a wide range of prey for the group, including larger and more robust animals such as marine turtles and large bony fish. This in combination with the decline of some marine predators as well as the diversification of possible prey is interpreted as that an adaptive radiation of the Lamniformes could have taken place during the latter half of the Early Cretaceous.
Morfologisk disparitet är ett mått på hur stor utsträckningen av morfologisk variation är. Detta mått räknas ut genom att jämföra landmärken utplacerade på bilder av föremål som ska undersökas. I detta projekt undersöktes den morfologiska dispariteten hos tänder från håbrandsartade hajar (Lamniformes) under tidig krita. Att just deras tänder undersöktes beror på att den större delen av hajars skelett är gjort av brosk vilket lätt bryts ned efter djuret avlidit. Deras tänder är dock gjorda av ben vilket har lättare att bli bevarat som fossil. Utöver detta så kan formen på tänder beskriva djurs födoval och levnadssätt. Gruppens tänder undersöktes därför även för att belysa eventuella förändringar i diet och ekologi under tidig krita. Resultatet av denna analys visar på en expansion av tandform under denna period från långa och smala tänder under Barremium till en större variation under Albium där även mer triangelformade och robusta tänder dyker upp. Detta har tolkats som en adaptiv artbildningsperiod för gruppen då både nya byten (t.ex. teleostfiskar och havs-sköldpaddor) diversifierade och uppkom samtidigt som vissa marina predatorer (ichthyosaurer och plesiosaurer) minskade i antal under denna tidsperiod. Detta ändrade troligen de selektiva trycken på håbrandsartade hajars tandmorfologi samt lämnade ekologiska nischer öppna som dessa kunde anpassa sig till vilket i sin tur ledde till expansioner i morfologisk disparitet, diet och ekologi.
5
Testerman, Christine B. "Molecular Ecology of Globally Distributed Sharks." Dissertation, NSUWorks, 2004. https://nsuworks.nova.edu/occ_stuetd/6.
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Many sharks have life history characteristics (e.g., slow growth, late age at maturity, low fecundity, and long gestation periods) that make their populations vulnerable to collapse due to overfishing. The porbeagle (Lamna nasus), bull shark (Carcharhinus leucas), great hammerhead (Sphyrna mokarran), and smooth hammerhead (S. zygaena), are all commercially exploited. The population genetic structure of these species was assessed based on globally distributed sample sets using mitochondrial control region (mtCR) sequences and/or nuclear markers. Complex patterns of evolutionary and demographic history were inferred using coalescent and statistical moment-based methods. All four species showed statistically significant genetic partitioning on large scales, i.e., between hemispheres (L. nasus mtCR φST = 0.8273) or oceanic basins (C. leucas nuclear FST = 0.1564; S. mokarran mtCR φST = 0.8745, nuclear FST = 0.1113; S. zygaena mtCR φST = 0.8159, nuclear FST = 0.0495). Furthermore, S. zygaena mtCR sequences indicated statistically significant matrilineal genetic structuring within oceanic basins, but no intrabasin structure was detected with nuclear microsatellites. S. mokarran showed statistically significant genetic structure between oceanic basins with both nuclear and mitochondrial data, albeit with some differences between the two marker types in fine scale patterns involving northern Indian Ocean samples. A microsatellite assessment of C. leucas demonstrated no population structuring within the Atlantic or Indo-Pacific, with the exception that samples from Fiji were differentiated from the remaining Indo- Pacific Ocean locations. In contrast, the L. nasus mitochondrial and nuclear ITS2 sequences revealed strong northern vs. southern hemispheric population differentiation, but no differentiation within these hemispheres. These geographic patterns of genetic structure were used to determine the source of fins obtained from the international fin trade and to develop forensic tools for conservation.
6
Powlik, James. "Feeding structures of the white shark, Carcharodon Carcharias (Linnaeus), with notes on other species." Thesis/Dissertation, University of British Columbia, 1989. http://hdl.handle.net/2429/29758.
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Fresh and prepared museum specimens of the white shark Carcharodon carcharias, bull shark Carcharhinus leucas, and salmon shark Lamna ditropis were measured and compared with respect to tooth position and anterior buccal cavity dimensions. Coordinates of functional tooth position were defined by 1) deviation from the midline and 2) degree of erection. Tooth positions were not unique in any region of the mouth/ but demonstrated less variablity within 30° of the midline, particularly for male specimens of all three species (71.48° +- 10° erect) and all Carcharhinus leucas specimens (46.58° +-.96° erect). Analysis of high-speed videotape of white shark feeding indicated a 15.7° reduction in tooth cutting angle with jaw adduction following upper jaw protraction. It is suggested that such changes in tooth cutting angles during feeding are principally the result of jaw flexure, and may make the teeth more effective by angling them inward towards the gullet. Values for tooth removal from fresh-frozen white shark material using a tensile testing apparatus ranged from 12 kg (for a 110° erect tooth) to 70 kg (for a 59° erect tooth). Removal load was applied directly outward from the mouth to simulate a resistant prey item, and was not significantly different for degree of erection or tooth position on the jaw margin. Tooth position is seen to change with jaw protraction, however this change does not enhance tooth functionality by increasing the load required to remove the tooth.
Science, Faculty of
Zoology, Department of
Graduate
7
Sundberg, Nilas. "Quantifying Dental Morphological Variation in Lamniform Sharks." Student thesis, Uppsala universitet, Institutionen för geovetenskaper, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-234749.
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8
Huber, Daniel Robert. "Cranial biomechanics and feeding performance of sharks." Text, Scholar Commons, 2006. http://scholarcommons.usf.edu/etd/2566.
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The elasmobranch fishes possess a remarkable diversity of feeding mechanisms for a group containing relatively few species (~1200). The three most prevalent of these mechanisms involve prey capture during which the predator overtakes its prey (ram), prey is drawn into the mouth of the predator (suction), and relatively stationary consumption of sessile or substrate affixed prey (biting). Biomechanical modeling of cranial force distributions, in situ bite performance trials, and kinematic analysis of prey capture behaviors were employed to identify morphological and behavioral specializations and constraints associated with these feeding mechanisms in lemon Negaprion brevirostris (ram), whitespotted bamboo Chiloscyllium plagiosum (suction), and horn Heterodontus francisci (biting) sharks. Biomechanical modeling of the forces generated by the cranial musculature was used to theoretically estimate the maximum bite force and mechanical loadings occurring throughout the hyostyl ic jaw suspension mechanisms of each species, characterized by suspensory hyomandibular cartilages between the back of the jaws and cranium and anterior ligamentous attachments. To assess the mechanical factors involved in the evolution of elasmobranch jaw suspension mechanisms, the feeding mechanism of the sharpnose sevengill shark Heptranchias perlo was modeled as well. Heptranchias perlo possesses an ancestral amphistylic jaw suspension mechanism including non-suspensory hyomandibular cartilages, a large post-orbital articulation between the jaws and cranium, and anterior ligamentous attachments. Theoretical estimates of maximum bite force were compared to voluntary bite forces measured during in situ bite performance trials. Voluntary bite force measurements allowed the quantification of discrete behavioral attributes of bite force application in each species. To further assess the behavioral specializations associated with these feeding mechanisms, high-speed digital videography w as used to analyze the prey capture cranial kinematics of species. Collectively, these analyses have developed a morphological and behavioral basis from which to understand the functional diversity of the ram, suction, and biting feeding mechanisms in elasmobranchs.
9
Abercrombie, Debra. "Efficient PCR-Based Identification of Shark Products in Global Trade: Applications for the Management and Conservation of Commercially Important Mackerel Sharks (Family Lamnidae), Thresher Sharks (Family Alopiidae) and Hammerhead Sharks (Family Sphyrnidae)." Text, NSUWorks, 2001. http://nsuworks.nova.edu/occ_stuetd/131.
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Shark populations worldwide are suspected to be in severe decline due to domestic and international markets for trade in shark products, especially dried fins in Asian markets, and as a result of bycatch mortality in multi-species fisheries. The management of sharks on a species-specific basis has become imperative for shark conservation, particularly in regions where numerous species are heavily fished, because sharks with differing life-history characteristics respond differently to exploitation. However, many commercially exploited sharks are morphologically similar and not easily identifiable to the species level. This problem is exacerbated when it comes to identifying detached fins, processed carcasses (logs), and filets or steaks at the dock or in trade. To address these species-identification problems and make available an accurate but practical, DNA-based forensic method for use in conservation and management of sharks, I have developed a highly streamlined genetic assay based on multiplex polymerase chain reaction (PCR) and species-specific primers derived from interspecific DNA sequence differences in the nuclear ribosomal internal transcribed spacer 2 (ITS2) locus of sharks. This forensic assay allows accurate identification of body parts from ten shark species commonly exploited worldwide for their meat and/or fins. In this thesis, I report on the development and use of this assay in the form of two separate suites of species-specific PCR primers that can be used in a high-density multiplex format to achieve rapid and accurate species identification. Chapter 1 of this thesis describes a suite of species-specific primers and multiplex PCR assay that simultaneously distinguishes among seven pelagic shark species: four species of mackerel sharks: shortfin mako (Isurus oxyrinchus), longfin mako (Isurus paucus), porbeagle (Lamna nasus) and salmon (Lamna ditropis); and the three species of alopiid (thresher) sharks: common thresher (Alopias vulpinus), bigeye thresher (Alopias superciliosus) and pelagic thresher (Alopias pelagicus). The second species-specific primer suite, described in chapter 2, simultaneously identifies the three globally distributed and most commercially important species of hammerheads: the great hammerhead (Sphyrna mokarran), scalloped hammerhead (Sphyna lewini) and the smooth hammerhead (Sphyrna zygaena). The species-specific PCR primers and forensic approach described here provide an efficient, straightforward technique that can be used in conservation and management relevant contexts where large volumes of samples need to be screened quickly. Preliminary testing of dried fins from the Hong Kong market and confiscated fins from U.S. and South African law enforcement activities suggests that this genetic technique will be useful for large-scale survey applications, such as monitoring the species composition of the fin trade as well as improving fisheries law enforcement capabilities. The efficient nature of the general forensic approach reported here may also make it useful as a model applicable to monitoring trade in other wildlife products on a global scale.
10
Dulvy, Nicholas K. "Life histories and conservation of sharks and rays." Electronic Thesis or Dissertation, University of East Anglia, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.267726.
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Книги з теми "Sharks Australia Embryology":

1
Last, P. R. Sharks and rays of Australia. [East Melbourne, Vic.?]: CSIRO Australia, 1994.
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Last, P. R. Sharks and rays of Australia. 2nd ed. Cambridge, Mass: Harvard University Press, 2009.
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Last, P. R. Sharks and rays of Australia. 2nd ed. Collingwood, Vic: CSIRO Pub., 2009.
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Anton, Tina. Sharks, sharks, sharks. Milwaukee: Raintree Publishers, 1989.
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5
Perrine, Doug. Sharks. Grantown-on-Spey, Scotland: Colin Baxter Photography, 1995.
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Lopez, Gary. Sharks. [Mankato, MN]: Child's World, 1991.
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Oakley, Mark. Sharks. Loughborough: Ladybird, 1995.
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8
Stevens, J. D. Sharks. New York, N.Y: Facts on File Publications, 1987.
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Hamilton, Sue L. Sharks. Edina, MN: ABDO Pub. Co., 2010.
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10
Penny, Malcolm. Sharks. London: Puffin, 1992.
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Частини книг з теми "Sharks Australia Embryology":

1
Duffy, Sarah, and Roger A. Layton. "Whale sharks, Ningaloo Reef, Western Australia." In Social Marketing, 509–24. Third edition. | Abingdon, Oxon ; New York, NY : Routledge, 2018.: Routledge, 2017. http://dx.doi.org/10.4324/9781315648590-30.
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2
Westbrook, Vivienne, Shaun Collin, Dean Crawford, and Mark Nicholls. "Prose sharks." In Sharks in the Arts, 123–42. New York : Routledge, 2018. | Series: Routledge environmental humanities: Routledge, 2018. http://dx.doi.org/10.4324/9781315681078-6.
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Westbrook, Vivienne, Shaun Collin, Dean Crawford, and Mark Nicholls. "Sharks in poetry." In Sharks in the Arts, 48–79. New York : Routledge, 2018. | Series: Routledge environmental humanities: Routledge, 2018. http://dx.doi.org/10.4324/9781315681078-3.
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Westbrook, Vivienne, Shaun Collin, Dean Crawford, and Mark Nicholls. "Sharks on film." In Sharks in the Arts, 143–56. New York : Routledge, 2018. | Series: Routledge environmental humanities: Routledge, 2018. http://dx.doi.org/10.4324/9781315681078-7.
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Appleby, Roslyn. "Surfing With Sharks." In Sexing the Animal in a Posthumanist World, 43–55. London ; New York : Routledge, 2019.: Routledge, 2019. http://dx.doi.org/10.4324/9781351271486-4.
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Cook, Cynthia, Kathleen K. Sulik, and Kenneth W. Wright. "Embryology." In Pediatric Ophthalmology and Strabismus, 3–38. New York, NY: Springer New York, 2003. http://dx.doi.org/10.1007/978-0-387-21753-6_1.
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Woolf, Adrian S., and Jolanta E. Pitera. "Embryology." In Pediatric Nephrology, 3–30. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-540-76341-3_1.
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Abdel, Ahmad Wagih. "Embryology." In Passing the USMLE, 1–19. New York, NY: Springer New York, 2008. http://dx.doi.org/10.1007/978-0-387-68980-7_2.
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Chen, Yen Hsun, and Aaron Daluiski. "Embryology." In The Pediatric Upper Extremity, 3–23. New York, NY: Springer New York, 2015. http://dx.doi.org/10.1007/978-1-4614-8515-5_1.
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Chen, Yen Hsun, and Aaron Daluiski. "Embryology." In The Pediatric Upper Extremity, 1–23. New York, NY: Springer New York, 2014. http://dx.doi.org/10.1007/978-1-4614-8758-6_1-1.
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Тези доповідей конференцій з теми "Sharks Australia Embryology":

1
Reynolds, Samantha D., Bradley M. Normans, Rory P. Wilson, Hester Bushell, Sharyn O' Neill, and David L. Morgan. "Where the whale sharks are: An innovative satellite tagging programme to track the movements of whale sharks from Ningaloo Reef, Western Australia." In The 4th International Whale Shark Conference. Hamad bin Khalifa University Press (HBKU Press), 2016. http://dx.doi.org/10.5339/qproc.2016.iwsc4.50.
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Zamora, Lara Marcus, Patti Virtue, Heidi R. Pethybridge, Mark G. Meekan, Michele Thums, and Peter D. Nichols. "Intraspecific variability in diet and implied foraging ranges of whale sharks at Ningaloo Reef, Western Australia." In The 4th International Whale Shark Conference. Hamad bin Khalifa University Press (HBKU Press), 2016. http://dx.doi.org/10.5339/qproc.2016.iwsc4.69.
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Bookstein, Fred L., and Bradley R. Smith. "Inverting dedevelopment: geometric singularity theory in embryology." In International Symposium on Optical Science and Technology, edited by David C. Wilson, Hemant D. Tagare, Fred L. Bookstein, Francoise J. Preteux, and Edward R. Dougherty. SPIE, 2000. http://dx.doi.org/10.1117/12.402451.
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Lindhard, Tina. "Cosmology, Embryology and the Journey of Self-Discovery." In DIALOGO-CONF 2017. EDIS - Publishing Institution of the University of Zilina, Slovak Republic, 2017. http://dx.doi.org/10.18638/dialogo.2017.4.1.13.
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Chiang, Cheng-Han, Sung-Feng Huang, and Hung-yi Lee. "Pretrained Language Model Embryology: The Birth of ALBERT." In Proceedings of the 2020 Conference on Empirical Methods in Natural Language Processing (EMNLP). Stroudsburg, PA, USA: Association for Computational Linguistics, 2020. http://dx.doi.org/10.18653/v1/2020.emnlp-main.553.
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Rowat, David R. L., Savinien T. Leblond, Bruno Pardigon, Michel Vely, Daniel Jouannet, and Imogen A. Webster. "Djibouti – a kindergarten for whale sharks?" In The 4th International Whale Shark Conference. Hamad bin Khalifa University Press (HBKU Press), 2016. http://dx.doi.org/10.5339/qproc.2016.iwsc4.54.
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Pena, Alvaro, Noel Perez, Diego S. Benitez, and Alex Hearn. "Tracking Hammerhead Sharks With Deep Learning." In 2020 IEEE Colombian Conference on Applications of Computational Intelligence (ColCACI). IEEE, 2020. http://dx.doi.org/10.1109/colcaci50549.2020.9247911.
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Verweij, Andre. "Three-dimensional image analysis as a tool for embryology." In SPIE/IS&T 1992 Symposium on Electronic Imaging: Science and Technology, edited by Raj S. Acharya, Carol J. Cogswell, and Dmitry B. Goldgof. SPIE, 1992. http://dx.doi.org/10.1117/12.59610.
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Husairi, Ahmad. "Embryology In The Qur'an And Hadith: Expanded Multidisiplinary Perspective." In Proceedings of the Third International Conference on Sustainable Innovation 2019 – Humanity, Education and Social Sciences (IcoSIHESS 2019). Paris, France: Atlantis Press, 2019. http://dx.doi.org/10.2991/icosihess-19.2019.79.
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Tamez-Galvan, Evan Michelle, Scott C. McKenzie, and Scott C. McKenzie. "MAZON CREEK SHARKS AND THEIR EGG CASES." In GSA Annual Meeting in Phoenix, Arizona, USA - 2019. Geological Society of America, 2019. http://dx.doi.org/10.1130/abs/2019am-333504.
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Звіти організацій з теми "Sharks Australia Embryology":

1
Kipke, Daryl R., Jeffrey Carrier, and David J. Anderson. Implantable Neural Interfaces for Sharks. Fort Belvoir, VA: Defense Technical Information Center, May 2007. http://dx.doi.org/10.21236/ada470127.
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Brendan Talwar, Brendan Talwar. Deep sea sharks: Do they survive? Experiment, January 2014. http://dx.doi.org/10.18258/1820.
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Rachael Karns, Rachael Karns. Sharks host bacteria, but what are they? Experiment, June 2016. http://dx.doi.org/10.18258/7225.
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David Shiffman, David Shiffman. What are the feeding habits of threatened sharks? Experiment, January 2014. http://dx.doi.org/10.18258/1856.
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James Anderson, James Anderson. Stealth tagging of adult Scalloped Hammerhead sharks in Hawai'i. Experiment, March 2015. http://dx.doi.org/10.18258/4907.
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Lang, Kevin, Kaiwen Leong, Huailu Li, and Haibo Xu. Lending to the Unbanked: Relational Contracting with Loan Sharks. Cambridge, MA: National Bureau of Economic Research, October 2019. http://dx.doi.org/10.3386/w26400.
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De Caritat, Patrice, and Michelle Cooper. National Geochemical Survey of Australia: the geochemical atlas of Australia. Geoscience Australia, 2011. http://dx.doi.org/10.11636/record.2011.020.
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Scaife, Wendy A. Giving Australia: Summary Report. Australia, QLD: QUT Library, November 2016. http://dx.doi.org/10.5204/rep.eprints.101304.
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Goscombe, B., K. Czarnota, R. S. Blewett, R. Skirrow, J. Everard, P. Aagaard, and C. Lawson. Metamorphic evolution of Australia. Geoscience Australia, 2020. http://dx.doi.org/10.11636/140088.
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Thomson, Sue, Nicole Wernert, Sima Rodrigues, and Elizabeth O’Grady. TIMSS 2019 Australia Highlights. Australian Council for Educational Research, December 2020. http://dx.doi.org/10.37517/978-1-74286-616-1.
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Анотація:
Trends in International Mathematics and Science Study (TIMSS) is an international sample study that assesses the mathematics and science achievement of Year 4 and Year 8 students every four years. Australia has participated in all cycles of TIMSS since it commenced in 1995 and over this 24-year period has collected rich data about trends in mathematics and science achievement. This document provides the highlights from Volume I of the main report TIMSS 2019 Australia. Volume I: Student performance. Volume I and these Highlights focus on the achievement results, detailing Australia’s results within the international context, as well as the results for the Australian jurisdictions, and for different demographic groups within Australia.

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