Academic literature on the topic 'Australian Fishing Zone'

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Journal articles on the topic "Australian Fishing Zone"

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Stevens, J. D., G. J. West, and K. J. McLoughlin. "Movements, recapture patterns, and factors affecting the return rate of carcharhinid and other sharks tagged off northern Australia." Marine and Freshwater Research 51, no. 2 (2000): 127. http://dx.doi.org/10.1071/mf98158.

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Between February 1983 and May 1985, ~10 500 sharks of 23 species were fin-tagged off northern Australia. Tagging concentrated on the commercially important Carcharhinus tilstoni and C. sorrah. Most recaptures were made in 1984 and 1985, but returns continued until May 1997. In all, 579 tags (5.5%) were recovered. Tag shedding was estimated to be low (0.025 year –1 for C. tilstoni) and tagging mortality was significantly lower for sharks caught by hand-line than by gill-net. Australian gill-netters, Taiwanese gill-netters (fishing in the Australian Fishing Zone) and Australian prawn trawlers accounted for most of the returns. The maximum distance between the release and recapture positions was >1100 km, but most returns were made within 50 km of the tagging site. Nearly all the releases were in inshore waters fished by Australian vessels. Although many recaptures were made by the offshore Taiwanese fishery, the Taiwanese fishing effort was much higher than for the inshore Australian fishery, so that relative to fishing effort, relatively few sharks moved from inshore to offshore waters.
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Hoeppe, Götz. "Boats to burn: Bajo fishing activity in the Australian fishing zone - By Stacey, Natasha." Journal of the Royal Anthropological Institute 16, no. 1 (March 2010): 184–85. http://dx.doi.org/10.1111/j.1467-9655.2009.01604_19.x.

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EDGAR, GRAHAM J., and NEVILLE S. BARRETT. "An assessment of population responses of common inshore fishes and invertebrates following declaration of five Australian marine protected areas." Environmental Conservation 39, no. 3 (July 6, 2012): 271–81. http://dx.doi.org/10.1017/s0376892912000185.

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SUMMARYIn order to better understand community-level effects of fishing on temperate reefs at continental scales, changes in densities of common species in five Australian marine protected areas (MPAs) were estimated from prior to establishment to three years after enforcement of fishing prohibitions. A before-after-control-impact survey design was used, with 5–14 replicated sites distributed within both sanctuary and fishing zones associated with each MPA. On the basis of published meta-analyses, exploited species were generally expected to show increased densities. By contrast, only two of the 11 exploited fish species (the red morwongCheilodactylus fuscusand latrid trumpeterLatridopsis forsteri), and none of seven exploited invertebrate species, showed significant signs of population recovery within sanctuary zones. Four fish species increased in biomass between survey periods. When variation in abundance data was partitioned by PERMANOVA independently for the five MPAs, the ‘zone × year’ interaction component consistently contributed onlyc.4% of total variation, compared to site (c.35%), zone (c.8%), year (c.8%) and residual error (c.45%) components. Given that longer-term Australian studies show clear community-wide responses following MPA protection, the discrepancy between weak observed recovery anda prioriexpectations is probably due, at least in part, to the three-year period studied being insufficient to generate clear trends, to relatively low fishing pressure on some temperate Australian reefs, and to meta-analyses overestimating the likelihood of significant short-term population responses.
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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.
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Welch, David J., Bruce D. Mapstone, Campbell R. Davies, and Garry R. Russ. "Spatial and fishing effects on sampling gear biases in a tropical reef line fishery." Marine and Freshwater Research 61, no. 10 (2010): 1134. http://dx.doi.org/10.1071/mf09278.

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Biased estimates of population parameters for harvested stocks can have severe implications for fishery management strategy choices. Hook-and-line fishing gear is size-selective and therefore collects biased samples from wild populations. Such biases may also vary in space and time. To assess this assertion, we compared line- and spear-caught samples of the main target species of an Australian hook-and-line fishery to quantify relative bias in size and age structure estimates. We also assessed the consistency of biases among four fishery regions and between two management zones – areas open and closed to fishing. Fish less than 310 mm and younger than 4 years comprised a larger proportion of the speared than the line samples regardless of region or management zone. Conversely, hook-and-line sampled more fish in larger size classes (>370 mm) and older age classes (≥6 years) relative to spear fishing. These biases were qualitatively, but not quantitatively, consistent in all regions and management zones. This variation in sampling resulted in different inferences about regional and zone-related patterns in population size and age structure. We recommend careful consideration of sampling bias when drawing conclusions about regional and management zone effects on fish populations.
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Prabawaningtyas, Shiskha. "Contested Space of Transborder Fishing in Timor and Arafura Seas." Indonesian Historical Studies 1, no. 1 (June 5, 2017): 1. http://dx.doi.org/10.14710/ihis.v1i1.1233.

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The continuity of Indonesian transborder fishing activities into Australian Fishing Zone (AFZ) highlights the rooted dispute of maritime border when contested space of boundary shared by local, state and international actor is confronted. Therefore, the prevailing of multilayer perspective of maritime boundary should not be easily neglected. The colonial project in early 19th century in Southeast Asia that initiated the foundation of modern state-formation had challenged the prior-political and economic construction of the region, specifically on the issue of territoriality. The modernization of shipping and fishing activities of which relied on technology and capitals had generated political and economic competitions and later persuaded state’s actors of applying the strategy of the territorialisation of the sea in order to ensure control. Unavoidably, securitization of transborder fishing became preferable solution. Transborder fishings are further subjected into state control relied on territorial sovereignty.This paper examines the transformation of transborder fishing in Timor and Arafura Sea to demonstrated the contested space of which interplayed by local, state and international actor. State regulations had transformed transborder fishing into political space of authority competition relied on territorial sovereignty, while socio-cultural heritage reminds exploited within fluid space of livelihood survival when state function is just absent.
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Creighton, Colin, Paul I. Boon, Justin D. Brookes, and Marcus Sheaves. "Repairing Australia's estuaries for improved fisheries production – what benefits, at what cost?" Marine and Freshwater Research 66, no. 6 (2015): 493. http://dx.doi.org/10.1071/mf14041.

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An Australia-wide assessment of ~1000 estuaries and embayments undertaken by the National Land and Water Resources Audit of 1997–2002 indicated that ~30% were modified to some degree. The most highly degraded were in New South Wales, where ~40% were classified as ‘extensively modified’ and <10% were ‘near pristine’. Since that review, urban populations have continued to grow rapidly, and increasing pressures for industrial and agricultural development in the coastal zone have resulted in ongoing degradation of Australia's estuaries and embayments. This degradation has had serious effects on biodiversity, and commercial and recreational fishing. A business case is developed that shows that an Australia-wide investment of AU$350 million into repair will be returned in less than 5 years. This return is merely from improved productivity of commercial fisheries of a limited number of fish, shellfish and crustacean species. Estuary repair represents an outstanding return on investment, possibly far greater than most of Australia's previous environmental repair initiatives and with clearly demonstrated outcomes across the Australian food and services economies.
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Linnane, A. J., S. S. Penny, and T. M. Ward. "Contrasting fecundity, size at maturity and reproductive potential of southern rock lobster Jasus edwardsii in two South Australian fishing regions." Journal of the Marine Biological Association of the United Kingdom 88, no. 3 (May 2008): 583–89. http://dx.doi.org/10.1017/s0025315408001021.

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The annual commercial catch from the Southern Zone of the South Australian rock lobster (Jasus edwardsii) fishery is ~1900 tonnes, representing ~50% of total landings from south-east Australia. A single minimum legal size (MLS) of 98.5 mm carapace length (CL) exists across the entire zone. Fecundity (F), size at onset of maturity (SOM) and relative reproductive potential (RRP) of female rock lobsters were investigated in two major fishing regions, i.e. the North Southern Zone (NSZ) and South Southern Zone (SSZ) with a view to providing a basis for future fine-scale spatial management of the resource. F ranged from 45,292 to 466,800 eggs per female and increased proportionally with CL according to the relationship: F = 0.0584 × CL3.1642. F was significantly higher in the NSZ compared to the SSZ but was attributed to differences in lobster size between regions. There was no significant difference in the number of eggs · g−1 of egg mass between areas. SOM, estimated as the size at which 50% of females reached sexual maturity (L50) was higher in the NSZ (104.1 mm CL) compared to SSZ (92.3 mm CL). Approximately 20% of lobsters above the MLS in the commercial catch in the NSZ were under the L50 estimate. RRP, as a measure of egg production, was calculated for each size-class from the product of F, SOM and population length–frequency. The modal RRP size-classes in the NSZ were 117.5–122.5 mm CL, while in the SSZ it was 97.5–102.5 mm CL. Only 6% of RRP was contributed by female rock lobsters below the MLS in the NSZ, compared to 34% in the SSZ. Regional differences in SOM and RRP in the Southern Zone of South Australia suggest that different MLSs may be beneficial, particularly if the fishery is to be effectively managed at finer spatial scales.
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Bell, Catherine, Peter Shaughnessy, Margie Morrice, and Bob Stanley. "Marine mammals and Japanese long-line fishing vessels in Australian waters: operational interactions and sightings." Pacific Conservation Biology 12, no. 1 (2006): 31. http://dx.doi.org/10.1071/pc060031.

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Observers from the Australian Fisheries Management Authority worked on randomly chosen Japanese long-line vessels in the Australian Fishing Zone (AFZ) between 1980 and 1997. Observer reports (n = 451) were inspected for interactions or sightings of marine mammals. An operational interaction was defined as an activity or behaviour that involved direct contact between a marine mammal and fishing gear, bait, target fish or bycatch, or indications that the marine mammal was feeding. A sighting was defined as the recording of marine mammals that passed the vessel without changing course and/or did not appear to interact with the vessel or its gear. Observers witnessed 23 interactions and made another 44 sightings of marine mammals. A further 24 interactions and sightings were relayed by crew members. Killer whales were reported most frequently: most incidences of fish being damaged, taken or frightened away were attributed to them. Eleven marine mammals were caught: two died, seven were released, and the fate of two others was not recorded. Between 1991 and 1996, when observer coverage was 11.5% overall in the AFZ, the incidence of interactions was 1.71 per million hooks set. The estimated number of interactions in that seven-year period was 157 in the AFZ. Since 1997, the long-line fishery has been conducted by Australian vessels, primarily off the east coast of mainland Australia in warm-temperate waters. A higher proportion of interactions can be expected with killer whales and short-finned pilot whales in these waters, and fewer with seals.
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Kaye, Stuart, and Donald R. Rothwell. "Australian law in Antarctica." Polar Record 29, no. 170 (July 1993): 215–18. http://dx.doi.org/10.1017/s0032247400018519.

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ABSTRACTThis article examines the content and ramifications of an Australian Parliamentary Committee's Report into the application of Australian law in the Australian Antarctic Territory (AAT). The Report's main findings suggest that Australian law should be more vigorously applied in Antarctica, and that current practices with regard to the operation and enforcement of Australian law are perceived as damaging to Australian sovereignty. This is particularly the case in the context of the virtual non-application of law to all foreign nationals within the AAT, to an extent far beyond the categories of persons exempted by Article VIII of the Antarctic Treaty. The article also discusses the possible ramifications and difficulties of giving effect to the Report's findings. Particular stress is placed upon the impact of asserting a 200-nautical-mile fishing or exclusive economic zone in the waters off the AAT, as well as the logistic difficulties that may become apparent if Australian sovereignty is more actively asserted. In this context, brief consideration is given to the Report's recommendations relating to the Antarctic environment and tourism within the AAT.
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Dissertations / Theses on the topic "Australian Fishing Zone"

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Klaer, Neil E., and n/a. "Analysis of seabird by-catch in the Australian Fishing Zone using Japanese longline fishery observer data." University of Canberra. Applied Science, 1998. http://erl.canberra.edu.au./public/adt-AUC20060814.150108.

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Data collected by Australian observers, combined with logbook data supplied by all Japanese vessels fishing in the Australian Fishing Zone were used to estimate the total seabird catch and catch rates (and associated variances) within the Australian Fishing Zone by season and area. The species composition of subsamples of captured seabirds was used in conjunction with the estimates of total by-catch to provide estimates of by-catch by species. The total by-catch of all seabird species by Japanese longline within Australian waters was estimated to be 2,981 (cv 17%) for the 1992 fishing year, 3,590 (cv 15%) in 1993 and 2,817 (cv 19%) in 1994. However, the observed seabird bycatch may underestimate the total number of seabirds killed by 27%. The increase in total seabird by-catch between 1992 and 1993 is partly due to the use of monofilament nylon longline gear by two vessels in 1993, and the decrease from 1993 to 1994 was mainly due to a corresponding reduction in fishing effort. For the three years examined, 78% of the total seabird by-catch was albatrosses, with black-browed albatross (Diomedea melanophrys) and shy albatross (D. cauta) caught in the greatest numbers. Catches of yellow-nosed albatross (D. chlororhynchos), wandering albatross (D. exulans}, and grey-headed albatross (D. chrysostoma) were also substantial. The proportions of individual species caught showed considerable inter-annual variability. Most seabirds caught and killed by longline fishing are captured during line setting. Data collected by the observers were also used to determine the influence of various environmental factors and mitigation measures on seabird catch rates. Generalised linear models were used to determine the statistical significance of the effect of each factor on the seabird catch rate. Results show that the environmental factor that has the most influence is whether line setting was carried out at night or during the day. For the data examined, the chance of catching seabirds during day sets was five times greater than for night sets. For night sets, the chance of catching seabirds during the full half-phase of the moon was five times greater than during the new half-phase. Other environmental factors with significant effects were the area and season fished. Wind, cloud and sea conditions were not found to have a significant influence. Considerable variation in the seabird by-catch rate among vessels was found, which is probably due to differences in their implementation of mitigation measures, as well as the clumped distribution of seabirds by area and time. Interannual variation in the by-catch rate was found to be statistically significant but the differences among years was small in comparison to other factors. An examination of the influence of mitigation measures for sets made during the day in summer in the Tasmanian area showed that the level of bait thawing and unidentified factors related to individual vessels were most significant in determining the seabird by-catch rate, followed by the use of a bait throwing device. It was not possible to examine the influence of the use of bird scaring tori poles and lines as these were used during all sets examined in detail. For this data set, the amount of cloud cover had an influence, while moon phase, sea conditions and wind strength did not.
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Norman, Karma C. "Grasping Adubad : Badulgal management, tenure, knowledge and harvest within the marine environment of the Torres Strait /." Thesis, Connect to this title online; UW restricted, 2007. http://hdl.handle.net/1773/6547.

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Books on the topic "Australian Fishing Zone"

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The politics of exclusion: Indonesian fishing in the Australian Fishing Zone. Perth, W.A: Indian Ocean Centre for Peace Studies and the Australian Centre for International Agricultural Research, 1993.

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Stacey, Natasha. Boats to burn: Bajo fishing activity in the Australian fishing zone. Canberra: ANU E Press, 2007.

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Stacey, Natasha. Boats to Burn: Bajo Fishing Activity in the Australian Fishing Zone. Canberra: ANU Press, 2007.

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Geen, Gerry. The value to Japan of access to the Australian fishing zone: A report to the Australian Fisheries Service. Canberra: Australian Bureau of Agricultural and Resource Economics, 1990.

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Hogan, Lindsay. Access fee arrangements for Japanese fishing vessels in the Australian fishing zone: ABARE report to the Fisheries Resources Research Fund. Canberra: ABARE, 1997.

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Bain, Robert. Fisheries development: 2000 AD: Management and development of the Australian fishing zone : a paper prepared for the International Conference of the Association of Indian Fisheries Industries, New Delhi, 4, 5 and 6 February 1985. Canberra: Australian Fisheries Service, 1985.

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Book chapters on the topic "Australian Fishing Zone"

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Hilborn, Ray, and Ulrike Hilborn. "Illegal Fishing." In Overfishing. Oxford University Press, 2012. http://dx.doi.org/10.1093/wentk/9780199798131.003.0012.

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Is illegal fishing an important problem in overfishing? On August 7, 2003, the Australian patrol vessel Southern Supporter spotted a vessel thought to be illegally fishing within the Australian 200-mile economic zone around Heard Island, 2,400 miles southwest of Perth in the...
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Adhuri, Dedi Supriadi. "Traditional and ‘modern’ trepang fisheries on the border of the Indonesian and Australian fishing zones." In Macassan History and Heritage: Journeys, Encounters and Influences. ANU Press, 2013. http://dx.doi.org/10.22459/mhh.06.2013.11.

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"Challenges for Diadromous Fishes in a Dynamic Global Environment." In Challenges for Diadromous Fishes in a Dynamic Global Environment, edited by Stephen J. M. Blaber. American Fisheries Society, 2009. http://dx.doi.org/10.47886/9781934874080.ch41.

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<em>Abstract</em>.-The general acceptance that individual fisheries should be managed in the context of the ecosystem of which the target species are a part has led to the paradigm of ecosystem- based fisheries management (EBFM). Such management may be particularly suitable for diadromous fishes, which spend time in rivers, estuaries, and the sea, because their sustainability would benefit from a holistic approach. The extent to which this is possible and has been successful depends on a wide variety of biological, socioeconomic, and political factors. Fishing in all its forms is only one of a broad array of human activities in rivers, estuaries, and the coastal zone; hence, diadromous fisheries management requires not only integration across ecosystems, but also its inclusion in overall planning processes. Tropical diadromous fisheries in developing countries suffer from overfishing, lack of adequate human resources to manage the fisheries, insufficient scientific data for sound management and decision making, lack of monitoring capabilities, poor enforcement of laws, inefficient administration, and increasing conflicts between different types of users. Even in developed countries, many of these issues also have not been addressed. The extent to which an EBFM approach has been successful for tropical diadromous species is discussed using the various barramundi <em>Lates calcarifer</em>, mullet (Mugilidae), and tropical shad (<em>Tenualosa</em>) fisheries of Asia and Australia, taking into account issues of food security and the role of community-based management.
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