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Articles de revues sur le sujet « Fisheries South Australia »

Auteur : Grafiati

Publié le 4 juin 2021

Mis à jour le 1 février 2022

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1

Barnes, Thomas C., Claudia Junge, Steven A. Myers, Mathew D. Taylor, Paul J. Rogers, Greg J. Ferguson, Jason A. Lieschke, Stephen C. Donnellan, and Bronwyn M. Gillanders. "Population structure in a wide-ranging coastal teleost (Argyrosomus japonicus, Sciaenidae) reflects marine biogeography across southern Australia." Marine and Freshwater Research 67, no. 8 (2016): 1103. http://dx.doi.org/10.1071/mf15044.

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Population structure in marine teleosts is often investigated to aid conservation and fisheries management (e.g. to assess population structure to inform restocking programs). We assessed genetic population structure of the important estuary-associated marine fish, mulloway (Argyrosomus japonicus), within Australian waters and between Australia and South Africa. Genetic variation was investigated at 13 polymorphic microsatellite markers. FST values and Bayesian estimates in STRUCTURE suggested population differentiation of mulloway within Australia and confirm strong differentiation between So

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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

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Lynch, T. P., C. B. Smallwood, F. A. Ochwada-Doyle, J. Lyle, J. Williams, K. L. Ryan, C. Devine, B. Gibson, and A. Jordan. "A cross continental scale comparison of Australian offshore recreational fisheries research and its applications to Marine Park and fisheries management." ICES Journal of Marine Science 77, no. 3 (June 10, 2019): 1190–205. http://dx.doi.org/10.1093/icesjms/fsz092.

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Abstract Recreational fishing is popular in Australia and is managed by individual states in consultation with the Commonwealth for those fisheries that they regulate and also for Australian Marine Parks (AMPs). Fishers regularly access both state and offshore Commonwealth waters but this offshore component of the recreational fishery is poorly understood. Our study tested the functionality of existing state-based surveys in Western Australia (WA) and New South Wales (NSW) to better inform Commonwealth fisheries and AMP managers about recreational fishing in their jurisdictions. Catch estimate

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Morgan, Jess A. T., Wayne D. Sumpton, Andrew T. Jones, Alexander B. Campbell, John Stewart, Paul Hamer, and Jennifer R. Ovenden. "Assessment of genetic structure among Australian east coast populations of snapper Chrysophrys auratus (Sparidae)." Marine and Freshwater Research 70, no. 7 (2019): 964. http://dx.doi.org/10.1071/mf18146.

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Snapper Chrysophrys auratus is a high-value food fish in Australia targeted by both commercial and recreational fisheries. Along the east coast of Australia, fisheries are managed under four state jurisdictions (Queensland, Qld; New South Wales, NSW; Victoria, Vic.; and Tasmania, Tas.), each applying different regulations, although it is thought that the fisheries target the same biological stock. An allozyme-based study in the mid-1990s identified a weak genetic disjunction north of Sydney (NSW) questioning the single-stock hypothesis. This study, focused on east-coast C. auratus, used nine m

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Shaughnessy, Peter D., Simon D. Goldsworthy, Paul Burch, and Terry E. Dennis. "Pup numbers of the Australian sea lion (Neophoca cinerea) at The Pages Islands, South Australia, over two decades." Australian Journal of Zoology 61, no. 2 (2013): 112. http://dx.doi.org/10.1071/zo13015.

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The Australian sea lion is an Australian endemic, restricted to South Australia and Western Australia, with 86% of the population in South Australia. It was listed under the Commonwealth Environment Protection and Biodiversity Conservation Act as Vulnerable in February 2005, and the International Union for the Conservation of Nature has listed it as Endangered. Sea lions are taken as bycatch in the gill-net fishery for school shark and gummy shark, and the risk of extinction of breeding colonies is high even from low levels of bycatch. We assessed trends in pup population size at The Pages Isl

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Faulkner, Adam. "A study of aboriginal fisheries in northern New South Wales, Australia." Human Dimensions of Wildlife 5, no. 4 (December 2000): 83–88. http://dx.doi.org/10.1080/10871200009359197.

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Nottage, Jonathan D., Ronald J. West, Steven S. Montgomery, and Ken Graham. "Cephalopod diversity in commercial fisheries landings of New South Wales, Australia." Reviews in Fish Biology and Fisheries 17, no. 2-3 (December 23, 2006): 271–81. http://dx.doi.org/10.1007/s11160-006-9032-8.

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Raoult, V., V. Peddemors, and J. E. Williamson. "Biology of angel sharks (Squatina sp.) and sawsharks (Pristiophorus sp.) caught in south-eastern Australian trawl fisheries and the New South Wales shark-meshing (bather-protection) program." Marine and Freshwater Research 68, no. 2 (2017): 207. http://dx.doi.org/10.1071/mf15369.

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Two species of angel shark (Squatina australis, S. albipunctata) and two species of sawshark (Pristiophorus nudipinnis, P. cirratus) are frequently caught in south-eastern Australia. Little is known of the biology of these elasmobranchs, despite being caught as secondary target species in large numbers. The present study collected morphometric and reproductive data from sharks caught in shark-control nets, commercial fishing trawlers and research trawlers in south-eastern Australia. All four species had female-biased sexual size dimorphism, but growth curves between sexes did not differ. Male

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Prince, Jeremy D. "Ecosystem of the South East Fishery (Australia), and fisher lore." Marine and Freshwater Research 52, no. 4 (2001): 431. http://dx.doi.org/10.1071/mf00042.

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A description of the marine ecosystem that sustains fisheries production around south-eastern Australia is based on a synthesis of fisher lore of the demersal trawling sector, a review of the literature and a decade of the author’s field observations. A wide range of species are fished demersally in the South East Fishery (SEF). Until recently, managers and researchers have often implicitly assumed that many of these demersally caught species were neritic and lived in close association with the seabed. In contrast, fisher lore emphasizes the pelagic and oceanic nature of the commercial resourc

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Hitchcock, Garrick. "Cross-border trade in Saratoga fingerlings from the Bensbach River, south-west Papua New Guinea." Pacific Conservation Biology 12, no. 3 (2006): 218. http://dx.doi.org/10.1071/pc060218.

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Saratoga Scleropages jardinii (Saville-Kent 1892) is a popular aquarium and sportsfish native to southern New Guinea and northern Australia. In recent years the people of the Bensbach River area in Papua New Guinea's Western Province have been harvesting wild fingerlings for sale across the nearby international border in Indonesia's Papua Province. From there the fish are sold to dealers in other parts of Asia. The species is protected by law in Indonesia, and subject to various regulations in Australia. In Papua New Guinea there are no controls on its exploitation. Uncontrolled harvesting of

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Gardner, M. G., and R. D. Ward. "Population structure of the Australian gummy shark (Mustelus antarcticus GÜnther) inferred from allozymes, mitochondrial DNA and vertebrae counts." Marine and Freshwater Research 49, no. 7 (1998): 733. http://dx.doi.org/10.1071/mf98009.

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The gummy shark (Mustelus antarcticus) is the main target of southern Australian shark fisheries. Its stock structure was investigated through allozymes (up to 28 loci), mitochondrial DNA (up to 10 restriction enzymes) and vertebrae counts. The average heterozygosity per allozyme locus (0.099) and degree of polymorphism (0.255) was high for sharks. Composite mitochondrial DNA haplotype diversity (0.534) and mean nucleotide sequence diversity (0.16%) were also moderately high. Three of the seven polymorphic allozyme loci (CK-A*, LDH-1*, PEP*) and the mtDNA haplotypes showed significant spatial

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Wulandari, Indah, and Harlinda Kuspradini, Irawan Wijaya. "agriculture, fisheries, forestry, West Kutai, zone." AGRIFOR 17, no. 2 (October 10, 2018): 275. http://dx.doi.org/10.31293/af.v17i2.3354.

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Litsea is a important genus from Lauraceae family, found in the tropic and subtropic Asia, Australia and from North to South America. Related literature review with biology activity show that secondary metabolite compounds in the Lauraceae plants contained insecticide and cytotoxic activities. Insecticide activities show bioactive compounds such as alkaloid, terpenoid and flavonoid. Botanical insecticides by terpenoid groups that found is piretrin, camphene and azardirakhtin. This research do to analyze secondary metabolite compunds by five species Litsea extract from bole, bark and leaf. Anal

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Tixier, Paul, Mary-Anne Lea, Mark A. Hindell, Christophe Guinet, Nicolas Gasco, Guy Duhamel, and John P. Y. Arnould. "Killer whale (Orcinus orca) interactions with blue-eye trevalla (Hyperoglyphe antarctica) longline fisheries." PeerJ 6 (August 8, 2018): e5306. http://dx.doi.org/10.7717/peerj.5306.

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Over the past five decades, marine mammal interactions with fisheries have become a major human-wildlife conflict globally. The emergence of longline fishing is concomitant with the development of depredation-type interactions i.e., marine mammals feeding on fish caught on hooks. The killer whale (Orcinus orca) is one of the species most involved in depredation on longline fisheries. The issue was first reported in high latitudes but, with increasing expansion of this fishing method, other fisheries have begun to experience interactions. The present study investigated killer whale interactions

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Navarro, Matthew, Atakelty Hailu, Tim Langlois, Karina L. Ryan, and Marit E. Kragt. "Determining spatial patterns in recreational catch data: a comparison of generalized additive mixed models and boosted regression trees." ICES Journal of Marine Science 77, no. 6 (July 15, 2019): 2216–25. http://dx.doi.org/10.1093/icesjms/fsz123.

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Abstract Marine recreational fisheries (MRFs) are often highly spatially heterogenous, with effort concentrated into small areas, and fisheries spanning large environmental gradients. However, spatially resolved catch data is rarely collected in MRFs, preventing the study of spatial heterogeneity in catch. This study uses recreational catch reported in 10 × 10 nm blocks across eight degrees of latitude in Western Australia to map spatial predictions of the probability of a recreational catch on an average trip for two key species: West Australian dhufish (Glaucosoma hebraicum) and snapper (Chr

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Gallo-Cajiao, Eduardo. "Evidence is required to address potential albatross mortality in the New South Wales Ocean Trawl fishery." Pacific Conservation Biology 20, no. 3 (2014): 328. http://dx.doi.org/10.1071/pc140328.

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To examine the current management of trawl fisheries is important to ensure albatross mortality is not being overlooked. By-catch of albatrosses in trawl fisheries occurs cryptically, which has hindered the development of conservation policy. The implementation of tasked seabird observer programmes in trawl fisheries, nevertheless, has shown that albatross mortality can happen at threatening levels. Consequently, mitigation measures have been developed and adopted in some trawl fisheries. Despite this, some trawl fisheries lack clear policy in relation to albatross mortality. In this context,

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Alleway, Heidi K., Bronwyn M. Gillanders, and Sean D. Connell. "‘Neo-Europe’ and its ecological consequences: the example of systematic degradation in Australia's inland fisheries." Biology Letters 12, no. 1 (January 2016): 20150774. http://dx.doi.org/10.1098/rsbl.2015.0774.

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The antiquity of human impact on ecosystems is increasingly understood, though the arrival of settlers to new lands remains a defining period. Colonization of the ‘neo-Europes’, a reference from the discipline of history, precipitated changes in aquatic ecosystems through modification of waterways and introductions of non-native species. We considered historical fisheries and fish market records from South Australia (1900–1946) against contemporary production statistics (1987–2011). Native inland species historically contributed large quantities to the market but have deteriorated such that fi

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Schnierer, S., and H. Egan. "Composition of the Aboriginal harvest of fisheries resources in coastal New South Wales, Australia." Reviews in Fish Biology and Fisheries 26, no. 4 (October 5, 2016): 693–709. http://dx.doi.org/10.1007/s11160-016-9452-z.

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Punt, André E., David C. Smith, Geoff N. Tuck, and Richard D. Methot. "Including discard data in fisheries stock assessments: Two case studies from south-eastern Australia." Fisheries Research 79, no. 3 (July 2006): 239–50. http://dx.doi.org/10.1016/j.fishres.2006.04.007.

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Alleway, Heidi K., Sean D. Connell, Tim M. Ward, and Bronwyn M. Gillanders. "Historical changes in mean trophic level of southern Australian fisheries." Marine and Freshwater Research 65, no. 10 (2014): 884. http://dx.doi.org/10.1071/mf13246.

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Decreases in the mean trophic level (MTL) of fishery catches have been used to infer reductions in the abundance of high trophic level species caused by fishing pressure. Previous assessments of southern Australian fisheries have been inconclusive. The objectives of the present study were to provide more accurate estimates of MTL using disaggregated taxonomic and spatial data. We applied the model of MTL to fisheries catch statistics for the state of South Australia from 1951 to 2010 and a novel set of historical market data from 1936 to 1946. Results show that from 1951 to 2010, MTL declined

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Dawson, Michael N. "Morphologic and molecular redescription of Catostylus mosaicus conservativus (Scyphozoa: Rhizostomeae: Catostylidae) from south-east Australia." Journal of the Marine Biological Association of the United Kingdom 85, no. 3 (June 2005): 723–31. http://dx.doi.org/10.1017/s002531540501163x.

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Two reciprocally monophyletic mitochondrial clades of the commercially valuable jellyfish Catostylus mosaicus are endemic to south-eastern Australia. Here, medusae in the two clades are shown to differ also in colour and in the dimensions of their papillae, oral disk, and bell depth. They are referred to two varieties recognized in 1884 by von Lendenfeld. The clade occupying localities adjacent to Bass Strait is redescribed as subspecies C. mosaicus conservativus; the clade from New South Wales and southern Queensland spans the type locality (Port Jackson) of C. mosaicus and is designated C. m

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Kennelly, Steven J. "The Development and Introduction of By-catch Reducing Technologies in Three Australian Prawn-Trawl Fisheries." Marine Technology Society Journal 33, no. 2 (January 1, 1999): 73–81. http://dx.doi.org/10.4031/mtsj.33.2.11.

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Three tasks are usually required to introduce new technologies that reduce by-catches in commercial fisheries: (i) identify and quantify the particular by-catch issue that requires the new devices; (ii) develop and test the devices; and (iii) implement the devices into industry by voluntary acceptance and/or legislation. To solve by-catch problems in prawn-trawl fisheries in three regions of Australia, different approaches have been followed with varying success, and their comparison identifies an ideal framework under which such problems can be resolved.In northern Australia’s prawn-trawl fis

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Niella, Y., AF Smoothey, V. Peddemors, and R. Harcourt. "Predicting changes in distribution of a large coastal shark in the face of the strengthening East Australian Current." Marine Ecology Progress Series 642 (May 28, 2020): 163–77. http://dx.doi.org/10.3354/meps13322.

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In the face of accelerating climate change, conservation strategies will need to consider how marine animals deal with forecast environmental change as well as ongoing threats. We used 10 yr (2009-2018) of data from commercial fisheries and a bather protection program along the coast of New South Wales (NSW), southeastern Australia, to investigate (1) spatial and temporal patterns of occurrence in bull sharks and (2) environmental factors affecting bull shark occurrence along the coast of NSW. Predicted future distribution for this species was modelled for the forecast strengthening East Austr

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Kroon, Frederieke J., and Dean H. Ansell. "A comparison of species assemblages between drainage systems with and without floodgates: implications for coastal floodplain management." Canadian Journal of Fisheries and Aquatic Sciences 63, no. 11 (November 1, 2006): 2400–2417. http://dx.doi.org/10.1139/f06-134.

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Coastal floodplains provide essential nursery habitat for a large number of fish and prawn species, many of which are commercially and recreationally important. Human activities in coastal floodplains, such as those associated with agriculture and (or) development, can have detrimental impacts on this nursery function. We examined the potential role of flood mitigation structures, in particular tidal floodgates, in depleting estuarine and inshore fisheries stocks in eastern Australia. We compared species assemblages (abundance and biomass) in reference and gated drainage systems in the Clarenc

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Schrale, G., R. Boardman, and M. J. Blaskett. "Investigating Land Based Disposal of Bolivar Reclaimed Water, South Australia." Water Science and Technology 27, no. 1 (January 1, 1993): 87–96. http://dx.doi.org/10.2166/wst.1993.0022.

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The Bolivar Sewage Treatment Works (STW) processes the urban and industrial sewage from the northern and eastern suburbs of Adelaide. The treatment capacity is equivalent to the sewage production of 1.1 million people. The disposal of more than 40 000 ML of reclaimed water into the sea has caused a progressive degradation of about 950 ha of seagrass beds which threatens the sustainability of the fisheries and marine ecosystems of Gulf St. Vincent. The current practice will no longer be viable to achieve compliance with the SA Marine Environment Protection Act, 1990. A Inter-Departmental Workin

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Pease, B. C. "A spatially oriented analysis of estuaries and their associated commercial fisheries in New South Wales, Australia." Fisheries Research 42, no. 1-2 (August 1999): 67–86. http://dx.doi.org/10.1016/s0165-7836(99)00035-1.

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Padovan, Amanda, Rowan C. Chick, Victoria J. Cole, Ludovic Dutoit, Patricia A. Hutchings, Cameron Jack, and Ceridwen I. Fraser. "Genomic analyses suggest strong population connectivity over large spatial scales of the commercially important baitworm, Australonuphis teres (Onuphidae)." Marine and Freshwater Research 71, no. 11 (2020): 1549. http://dx.doi.org/10.1071/mf20044.

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Barriers to dispersal can disrupt gene flow between populations, resulting in genetically distinct populations. Although many marine animals have potential for long-distance dispersal via a planktonic stage, gene flow among populations separated by large geographic distances is not always evident. Polychaetes are ecologically important and have been used as biological surrogates for marine biodiversity. Some polychaete species are used as bait for recreational fisheries, with this demand supporting commercial fisheries for polychaetes to service the retail bait market. However, despite their e

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Gales, N. J., B. Haberley, and P. Collins. "Changes in the abundance of New Zealand fur seals, Arctocephalus forsteri, in Western Australia." Wildlife Research 27, no. 2 (2000): 165. http://dx.doi.org/10.1071/wr99027.

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New Zealand fur seals, Arctocephalus forsteri, have been increasing in abundance in South Australia for at least the past three decades. A survey of New Zealand fur seals during the 1989/90 breeding season determined that about 20% of the Australian population bred at 16 sites in Western Australia, amounting to 1429 pups and an absolute abundance estimate of 7100 fur seals. A further survey of all fur seal colonies in Western Australia to determine current pup production and abundance estimates, and trends in pup production since the previous survey was undertaken in January 1999. Of the 17 br

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Li, Zeya, Neil J. Holbrook, Xuebin Zhang, Eric C. J. Oliver, and Eva A. Cougnon. "Remote Forcing of Tasman Sea Marine Heatwaves." Journal of Climate 33, no. 12 (June 15, 2020): 5337–54. http://dx.doi.org/10.1175/jcli-d-19-0641.1.

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AbstractRecent marine heatwave (MHW) events in the Tasman Sea have had dramatic impacts on the ecosystems, fisheries, and aquaculture off Tasmania’s east coast. However, our understanding of the large-scale drivers (forcing) and potential predictability of MHW events in this region off southeast Australia is still in its infancy. Here, we investigate the role of oceanic Rossby waves forced in the interior South Pacific on observed MHW occurrences off southeast Australia from 1994 to 2016, including the extreme 2015/16 MHW event. First, we used an upper-ocean heat budget analysis to show that 5

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Bichler, Martin, Vladimir Fux, and Jacob K. Goeree. "Designing combinatorial exchanges for the reallocation of resource rights." Proceedings of the National Academy of Sciences 116, no. 3 (December 31, 2018): 786–91. http://dx.doi.org/10.1073/pnas.1802123116.

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We describe the design and implementation of a combinatorial exchange for trading catch shares in New South Wales, Australia. The exchange ended a decades-long political debate by providing a market-based response to a major policy problem faced by fisheries worldwide: the reallocation of catch shares in cap-and-trade programs designed to prevent overfishing. The exchange was conducted over the Internet to lower participation costs and allowed for all-or-nothing orders to avoid fragmented share portfolios. A subsidy was distributed endogenously to facilitate the transfer of shares from inactiv

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Hallegraeff, GM, and SW Jeffrey. "Annually recurrent diatom blooms in spring along the New South Wales coast of Australia." Marine and Freshwater Research 44, no. 2 (1993): 325. http://dx.doi.org/10.1071/mf9930325.

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Blooms of phytoplankton (100-280 mg chlorophyll a m-1) occur on the continental shelf off Sydney in the spring of most years. These sudden chlorophyll increases (more than 10 times the normal algal biomass) are due to short-lived diatom blooms that evolve in a predictable sequence from small chainforming species (Nitzschia, Thalassiosira) to large centric species (Lauderia, Rhizosolenia) and eventually to large dinoflagellates (Protoperidinium). Two research cruises (October 1981, September 1984) were conducted to define the longshore extent of this phenomenon. Diatom blooms were widespread al

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Lenanton, RCJ, DI Heald, M. Platell, M. Cliff, and J. Shaw. "Aspect of the reproductive biology of the Gummy Shark, Mustelus antarcticus Gunther, from waters off the South coast of Western Australia." Marine and Freshwater Research 41, no. 6 (1990): 807. http://dx.doi.org/10.1071/mf9900807.

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The gummy shark (Mustelus antarcticus) is a major target species in two substantial shark fisheries that operate in temperate Australian waters. Data on the reproductive biology of M. antarcticus in the waters off south-western Australia were obtained from samples collected by commercial vessels operating from Albany to Esperance, Western Australia. The samples contained a ratio of four females to one male. M. antarcticus is a viviparous, aplacental species. Males mature at a smaller size than females. Since the overwhelming majority of sharks sampled were mature, it was not possible to estima

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Bunn, S. E., E. G. Abal, P. F. Greenfield, and D. M. Tarte. "Making the connection between healthy waterways and healthy catchments: South East Queensland, Australia." Water Supply 7, no. 2 (July 1, 2007): 93–100. http://dx.doi.org/10.2166/ws.2007.044.

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The waterways of South East Queensland, Australia, represent unique and complex ecosystems that have a high conservation value and support major recreational and commercial fisheries. The agricultural districts of the region also contribute significantly to the regional economy and, together with the growing urban areas, are heavily reliant on good quality water supplies. However, the human footprint of these activities has led to significant changes in catchment hydrology and sediment delivery, declining water quality and loss of aquatic biodiversity. Predicted population increases in the reg

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Linnane, Adrian, David Hobday, Stewart Frusher, and Caleb Gardner. "Growth rates of juvenile southern rock lobster (Jasus edwardsii) estimated through a diver-based tag - recapture program." Marine and Freshwater Research 63, no. 2 (2012): 110. http://dx.doi.org/10.1071/mf11121.

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Despite being one of the most economically important fisheries in south-eastern Australia, growth rates of juvenile southern rock lobster (Jasus edwardsii) have not previously been quantified in the wild. This study utilised a diver-based tag–recapture program to estimate growth rates of individuals between 40–80 mm carapace length (CL) in temperate reef sites across south-eastern Australia. Of the 7064 lobsters tagged and released, 978 (14%) were recaptured with recapture rates of 23, 5 and 7% in the States of Tasmania, South Australia and Victoria respectively. Although individual growth inc

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Saintilan, Neil, and Kerrylee Rogers. "The significance and vulnerability of Australian saltmarshes: implications for management in a changing climate." Marine and Freshwater Research 64, no. 1 (2013): 66. http://dx.doi.org/10.1071/mf12212.

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We review the distribution, status and ecology of Australian saltmarshes and the mechanisms whereby enhanced atmospheric carbon dioxide and associated climate change have influenced and will influence the provision of ecosystem goods and services. Research in temperate and subtropical saltmarsh has demonstrated important trophic contributions to estuarine fisheries, mediated by the synchronised mass-spawning of crabs, which feed predominantly on the C4 saltmarsh grass Sporobolus virginicus and microphytobenthos. Saltmarshes also provide unique feeding and habitat opportunities for several spec

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Trinnie, Fabian I., Terence I. Walker, Paul L. Jones, and Laurie J. Laurenson. "Reproductive biology of the eastern shovelnose stingaree Trygonoptera imitata from south-eastern Australia." Marine and Freshwater Research 60, no. 8 (2009): 845. http://dx.doi.org/10.1071/mf08165.

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In applying a quantitative approach to the reproduction of Trygonoptera imitata, the present study contributes to understanding the wide diversity in the reproductive biology of the family Urolophidae and provides insights to help determine phylogenetic relationships. This localised species is taken as bycatch in several inshore fisheries and potentially impacted by a range of other anthropogenic pressures, including introduced species, particularly in shallow-water pupping areas. T. imitata can be characterised as a species of comparatively low matrotrophic histotrophy with an extended period

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Whitten, Athol R., Neil L. Klaer, Geoffrey N. Tuck, and Robert W. Day. "Accounting for cohort-specific variable growth in fisheries stock assessments: A case study from south-eastern Australia." Fisheries Research 142 (May 2013): 27–36. http://dx.doi.org/10.1016/j.fishres.2012.06.021.

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LAST, PETER R., JUSTIN A. CHIDLOW, and LEONARD J. V. COMPAGNO. "A new wobbegong shark, Orectolobus hutchinsi n. sp. (Orectolobiformes: Orectolobidae) from southwestern Australia." Zootaxa 1239, no. 1 (June 21, 2006): 35. http://dx.doi.org/10.11646/zootaxa.1239.1.3.

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Orectolobus hutchinsi n. sp.. is a moderate-sized wobbegong shark found in shallow continental shelf habitats off Western Australia. It occurs from Coral Bay (near North West Cape) south to Groper Bluff (west of Bremer Bay) in depths of 9–106 m where it is caught as by-catch of local gillnet, longline, rock lobster and recreational fisheries. It is sympatric with two other commercial wobbegong species, Orectolobus maculatus and O. ornatus, but differs from these and other IndoPacific species in having the combination of a few unbranched dermal lobes, relatively tall dorsal fins, no warty tuber

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Meyer-Rochow, Victor Benno. "Ingredients to become a scientist: curiosity, enthusiasm, perseverance, opportunity, and a good pinch of luck." ICES Journal of Marine Science 77, no. 6 (July 2, 2020): 2013–21. http://dx.doi.org/10.1093/icesjms/fsaa102.

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Abstract Writing a 200-word abstract about the life of a 76-year-old scientist, in which luck played a significant role, is not an easy task. Even knowing this scientist well (for I am talking about myself) does not make it any easier. When you notice something is not right, do not fear changing your major (I changed twice before settling on Fisheries and Marine Science). For my PhD in neurobiology, I changed again. Grab opportunities when they arise. Join field trips and expeditions, attend conferences, and spread your interests widely. Spend time in different countries, learn new techniques

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McPherson, GR. "Reproductive biology of yellowfin tuna in the eastern Australian Fishing Zone, with special reference to the north-western Coral Sea." Marine and Freshwater Research 42, no. 5 (1991): 465. http://dx.doi.org/10.1071/mf9910465.

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Developmental stages of oocyte maturation and degenerative stages of postovulatory follicles in yellowfin tuna from the eastern Australian Fishing Zone of the Coral Sea are described. The time of spawning of yellowfin appeared to be during the late evening and early morning. Final oocyte maturation occurred in less than 24 h; postovulatory follicles could not be identified in ovaries after 24 h. Spawning of yellowfin commenced in the north-western Coral Sea by October and had ceased in the central-western Coral Sea by late February. The duration of spawning appeared to be less protracted in th

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Gray, CA, DJ McElligott, and RC Chick. "Intra- and inter-estuary differences in assemblages of fishes associated with shallow seagrass and bare sand." Marine and Freshwater Research 47, no. 5 (1996): 723. http://dx.doi.org/10.1071/mf9960723.

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Differences in the assemblages of fishes associated with the seagrass Zostera capricorni and bare sand were assessed across eight estuaries spanning 300 km of the coast of northern New South Wales, Australia. Assemblages consistently differed between habitats in all estuaries, as species affinities within each habitat were relatively consistent. A greater diversity and abundance of fishes generally occurred over seagrass than over sand. Great variation in the abundances of individual species was evident but there were no consistent geographic (inter-estuary) effects. The abundances of most spe

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Pollard, D. A. "A Comparison of Fish Assemblages and Fisheries in Intermittently Open and Permanently Open Coastal Lagoons on the South Coast of New South Wales, South-Eastern Australia." Estuaries 17, no. 3 (September 1994): 631. http://dx.doi.org/10.2307/1352411.

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Pepperell, J. G. "Possible impacts of the greenhouse effect on the distribution and fisheries of pelagic fishes off south-eastern Australia." Wetlands Australia 10, no. 1 (January 7, 2010): 40. http://dx.doi.org/10.31646/wa.136.

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Gray, Charles A. "Spatial variation in by-catch from a prawn seine-net fishery in a south-east Australian coastal lagoon." Marine and Freshwater Research 52, no. 7 (2001): 987. http://dx.doi.org/10.1071/mf00121.

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Observer-based estimates of the catches and by-catches from prawn seining (locally termed ‘snigging’) in Tuggerah Lake (NSW, Australia) during the 1998/99 fishing season are presented. Observed catches included three species of penaeid prawns, while observed by-catches contained a total of 49 finfish and 5 invertebrate taxa. The overall by-catch:prawn catch ratio by weight was 0.9:1, and in catching an estimated 20 ± 4 t of prawns the fleet took an estimated total by-catch of ± 2 t throughout the 6-month fishing season. The by-catch included large numbers of small (<15 cm total length) finf

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Gehrke, Peter C., and John H. Harris. "Large-scale patterns in species richness and composition of temperate riverine fish communities, south-eastern Australia." Marine and Freshwater Research 51, no. 2 (2000): 165. http://dx.doi.org/10.1071/mf99061.

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Riverine fish in New South Wales were studied to examine longitudinal trends in species richness and to identify fish communities on a large spatial scale. Five replicate rivers of four types (montane, slopes, regulated lowland and unregulated lowland) were selected from North Coast, South Coast, Murray and Darling regions. Fishwere sampled during summer and winter in two consecutive years with standardized gear that maximized the range of species caught. The composition of fish communities varied among regions and river types, with little temporal variation. Distinct regional communities conv

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MacKinnon, MR, and BW Herbert. "Temperature, dissolved oxygen and stratification in a tropical reservoir, Lake Tinaroo, Northern Queensland, Australia." Marine and Freshwater Research 47, no. 7 (1996): 937. http://dx.doi.org/10.1071/mf9960937.

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Thermal and oxygen depth profiles in Lake Tinaroo were measured monthly at six sites over a two-year period from May 1988 to July 1990. Lake Tinaroo exhibits thermal layering throughout most of the year. Partitioning of the water column into an oxygenated epilimnion and a deoxygenated hypolimnion was well established by October each year. Breakdown of stratification occurred in late May to June and persisted until September. From October to May multiple thermoclines (diurnal, parent) developed, particularly during still weather. Localized disruption of stratification by oxygenated, cool, dense

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Shepherd, S. A., and L. D. Brown. "What is an Abalone Stock: Implications for the Role of Refugia in Conservation." Canadian Journal of Fisheries and Aquatic Sciences 50, no. 9 (September 1, 1993): 2001–9. http://dx.doi.org/10.1139/f93-224.

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This paper concerns the conservation of abalone stocks in a genetic and fisheries sense. We review genetic and ecological information relating to the differentiation of abalone stocks in South Australia and propose that metapopulation theory provides an apt framework in which to develop the concept of an abalone stock. We consider what is a minimum viable population for abalone and illustrate our discussion with a case study of an abalone population that declined through a combination of fishing, recruitment failure, and inadequate protection by a refugium. Refugia can play an important role i

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Mayfield, Stephen, Richard McGarvey, Ian J. Carlson, and Cameron Dixon. "Integrating commercial and research surveys to estimate the harvestable biomass, and establish a quota, for an “unexploited” abalone population." ICES Journal of Marine Science 65, no. 7 (June 26, 2008): 1122–30. http://dx.doi.org/10.1093/icesjms/fsn105.

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Abstract Mayfield, S., McGarvey, R., Carlson, I. J., and Dixon, C. 2008. Integrating commercial and research surveys to estimate the harvestable biomass, and establish a quota, for an “unexploited” abalone population. – ICES Journal of Marine Science, 65: 1122–1130. A key challenge facing many fisheries managers is the absence of information on the level of harvestable biomass. We describe an integrated, two-stage survey approach that was used to measure the spatial distribution and harvestable biomass of a largely unexploited metapopulation of greenlip abalone (Haliotis laevigata) over a larg

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Pollino, Carmel A., Pat Feehan, Michael R. Grace, and Barry T. Hart. "Reply to the comment by Crook and Koster (2006) 'Temporal change in fish assemblages in the lower Goulburn River, south-eastern Australia'." Marine and Freshwater Research 57, no. 3 (2006): 309. http://dx.doi.org/10.1071/mf05145.

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In an earlier paper, multivariate statistics were used on historic fisheries data sets to show spatial differences between fish communities in the Goulburn Catchment (Victoria, Australia). In this reply paper, some further statistical analyses are presented to provide evidence for the assertion that fish communities at each site were stable over the temporal scale of the data was valid. Indeed, evidence for the stabilisation and persistence of fish communities after a major disturbance has also been recognised in other studies. Furthermore, in making judgements about the stability and persiste

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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

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Appleford, P., T. A. Anderson, and G. J. Gooley. "Reproductive cycle and gonadal development of Macquarie perch, Macquaria australasica Cuvier (Percichthyidae), in Lake Dartmouth and tributaries of the Murray - Darling Basin, Victoria, Australia." Marine and Freshwater Research 49, no. 2 (1998): 163. http://dx.doi.org/10.1071/mf97012.

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The gonadal development, reproductive cycle and growth of Macquarie perch, Macquaria australasica Cuvier, in Lake Dartmouth and selected tributaries of the Murray–Darling River Basin in south-eastern Australia were evaluated. Gonadosomatic index (GSI) and histological analysis were used to determine gonadal development and age and size at first maturity in the resident Lake Dartmouth population. GSI analysis was also used to determine age and size of Macquarie perch at first maturity in the inflowing Mitta Mitta River and other riverine populations within the Goulburn River catchment. Males ap

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