Pollination is a critical ecosystem function for sustaining biodiversity. However, pollinators and the services they provide are threatened by landscape-altering anthropogenic activities across the globe. Habitat loss and fragmentation, introduction of invasive species, chemical use, and urbanization have been shown to impact pollination. Pollinator foraging behavior is thought to be...
We empirically estimate the effects on management outcomes in common-pool resource
management into three: the direct effect of management systems, the direct effect of social
capital, and the indirect effect of management systems and social capital interacting each other to influence the outcomes. In particular, we focus on revenue sharing...
Despite to the high fishing pressure; use of illegal fishing methods; deforestation, manufacturing, tourism and even the dynamic market environment, an artisanal stake-net fishery, which operates for shrimps, has been able to survive since 1721 in Negombo lagoon in the western Sri Lanka. The key strength of the stake-net fishery...
Scanner data that’s collected on consumer purchases falls into two main groups: point-of-sale scanner data and household-based scanner data. Point-of-sale scanner data can identify the products that are purchased, the quantity sold, and the price of the product. Household scanner data comes from a sample of survey participants that scan...
Symbiotic relationships between cnidarians and dinoflagellates within the genus
Symbiodinium are critically important for the success of coral reefs. These symbionts
provide their hosts with photosynthetically-fixed carbon in exchange for nutrients
and shelter. Symbiodinium is a phylogenetically diverse genus that is often typed by
sequencing the ribosomal internal transcribed spacer...
A Fishery Gross Margin (FGM) model has been used, as a cost-effective and practical alternative to more complex economic modelling, to inform the development of structured TACC decision rules as part of the formal harvest strategy adopted for the South Australian Pipi (donax Deltiodes) fishery since 2012.
The primary economic...
Warming of the Arctic has taken place with a loss of sea ice and changes in the Arctic ecosystem. Valuable commercial species may move northward and large-scale commercial fishing may be proposed. This paper considers the potential for commercial fisheries in the Arctic, much of which is international waters, and...
One of the most important issues discussed in Nigeria today is that of women participation in agricultural development. This is because of the important role played by them in national
development and most needs of any developing nation of the world today. This study focused and examined gender inequalities issues...
After 16 years under a limited access program with effort controls, the New England groundfish fishery transitioned to a catch share management system in 2010. For much of its earlier management history issues related to fishing capacity were paramount as effort controls were increasingly restrictive to meet biological objectives. As...
After 16 years under a limited access program with effort controls, the New England groundfish fishery transitioned to a catch share management system in 2010. For much of its earlier management history issues related to fishing capacity were paramount as effort controls were increasingly restrictive to meet biological objectives. As...
The study investigated fresh fish characteristics that determine consumers' preference for fresh fish in rural and urban households. Primary data were collected from a total of 192 fresh fish consumers using multi-stage sampling procedure. The data were analyzed using descriptive statistics, regression analysis and Relative Attribute Model (RAM). The results...
License and vessel buybacks continue to be utilized by fishery managers to achieve reductions in actual and latent fishing effort worldwide. While there is debate about their effectiveness in achieving sustainability, the design of alternative implementing mechanisms has received less attention. When participation is assumed endogenous, the specific features of...
In 1986, New Zealand implemented the world’s first comprehensive individual transferable quota management system for fisheries, designed to ensure sustainable use of fish resources by restricting take levels. Today, fewer people are fishing less frequently, often using with more efficient capture technologies. Drawing on ethnographic research with Maori fishing communities...
To run the ITQ system as well as other components of the fisheries management system, the Icelandic government conducts a number of activities which may be regarded as fisheries management services. The most important of these are performed by (i) the Fisheries Directorate which maintains the quota registry and enforces...
Fishers are faced with multiple risks, including unpredictability of future catch rates, prices and costs. While the latter are largely beyond the control of fisheries managers, effective fisheries management should reduce uncertainty about future catches while also enhancing profitability. Different management instruments are likely to have different impacts on the...
The paper puts forward a Bayesian Network model to study the optimal eutrophication control in coastal waters by reducing nutrient loads and removing fish biomass (bottom-up and top-down ecosystem mechanisms). The model combines an aquatic ecosystem model with an economic model and examines the economic and ecological consequences of nutrient...
This paper examines the tradeoffs between the production of crops and habitat for juvenile salmon, through flood events, on the Yolo Bypass floodplain. I investigate how changes in the fishery management institution affect the economic returns to fish habitat.
To understand how habitat provision affects the economic surplus of the...
Research Outline
•Amplify the coding region of the spike protein by PCR using primer flanking the S protein coding region
•Clone the coding region into PCR-TOPO 2.1 cloning vector
•Re-clone the coding region into PET6XHN-N vector
•Induce the spike protein expression in BL-21 cells
Shrimp is one of the largest traded commodities in the world and account for about 50 percent of total export of marine products (3.5 billion US $) from India in value term during 2012-13. The European Union (EU) is the second largest buyer of Indian marine products with a share...
‘Interactive governance’ is an emerging theory gaining traction in the field of fisheries social science but as yet largely unexplored in the field of Marine Protected Area (MPA) planning and management. According to ‘interactive governance theory’, MPAs are a form of ‘governing system’ established to manage the interaction between natural...
Climate, competition, and disease are well-recognized drivers of population dynamics and can be intertwined by animal migrations with consequences for the ecosystems and economies that depend on them. Sockeye salmon from the Fraser River of British Columbia are one of the most ecologically, economically, and socially important salmon complexes in...
Integrating governance mechanisms into bio-economic modeling tools is a key challenge for the assessment of fisheries management plans. Impact assessments are carried out without considering real management options and institutional context. Only fishing mortality changes and their impact on fish stocks are considered. The Bay of Biscay sole fishery offers...
Australian Commonwealth fisheries have adopted maximum economic yield as a target reference point. A bioeconomic model has been developed for one key fishery - the Northern Prawn Fishery - and is used in the provision of management advice. The development and application of this model has highlighted some challenges for...
Family influence in the home environment has been linked to children’s nutrition and physical activity behaviors. However few tools exist to identify family level behaviors and families’ readiness to change those behaviors, particularly for populations at high risk for obesity such as Hispanics. This study summarizes the relationships of similar...
In multi-species fisheries managed under ITQs, the existence of joint production may lead to complex catch-quota balancing issues. Previous modelling and experimental research suggest that, in such fisheries, some fishers may benefit from the ability to trade packages of fishing quotas, rather than fulfill their quota needs by simultaneously bidding...
In 2007 the Fisheries Management Act passed through the South Australian parliament. The Act includes several new provisions which substantially changed the nature of commercial fishing rights, resource sharing between competing sectors and rights based management.
These interrelated provisions include: (1) Commercial licences are issued for the duration of a...
This study compares globally available integrated ecological-economic models with focus on use and implementation in scientific and advisory contexts. The Ecosystem based Approach to (Fisheries) Management (EAM) calls for an understanding and management of fisheries and other uses of the marine environment that explicitly take into account ecological, economic and...
The Orinoco Sailfin Catfish (OSC) is an invasive fish species introduced into local water bodies through the ornamental fish industry in Sri Lanka. Freshwater aquaculture is a key element that strengthens the rural economy while fulfilling nutritional needs of rural populations. At present, growth of OSC is adversely affecting the...
The long desired self-sufficiency in national and grass-root fish production is momentous to food security in Nigeria. The nature and patterns of feed utilization among fish farming households will provide a strategy to raise demand for local feeds thereby raising national feed production vis-à-vis reducing Nigeria’s import dependency on feeds....
Amendment 80 of the Bering & Sea Aleutian Island Groundfish Fisheries Management Plan instituted groundfish retention standards (GRS) with the goal of reducing discards, which had been historically high for a particular fleet. The GRS continue to be a subject of regulatory attention as recent discard levels are markedly below...
Rights-based fisheries management programs allocate to fishermen a specified portion of the annual TAC, providing fishermen with the incentive to optimize the value of this share, which has been shown to lead to more economically efficient behavior. Less efficient operators will tend to leave the fishery, decreasing overcapacity, but this...
There has been little empirical analysis of technical efficiency for commercial fisheries in Victoria. This study examines technical efficiency in the Victorian Abalone Fishery with an input-oriented data envelopment analysis (DEA) using panel data for the period from 1978/79 to 2009/2010. The influence of factors affecting technical efficiency is analysed...
Scientists at EPA’s National Health and Environmental Effects Research Laboratory, Western Ecology Division (WED) have been studying seafloor (benthic) habitats in Yaquina estuary for several years. Those studies were conducted as parts of several research projects, including: effects of contaminated sediments on benthic invertebrates, effects of nutrient enrichment on estuarine...
A case history of ambient status and trends monitoring is presented for the South Slough estuary (southern Oregon). Datasets collected over the past decade by the South Slough National Estuarine Research Reserve / System-Wide Monitoring program (SWMP) include real-time measurements (every 5 min) of several meteorological parameters (air temperature, relative...
Crown jellyfish (Periphylla periphylla) has become an increasing biological and economic problem for the fishermen in many Norwegian fjords. It is known to prey on a variety of planktonic species including small crustaceans like krill and calanus as well as fish eggs and larvae. Thus, this jellyfish is both a...
Non-tariff barriers (NTBs) affect particularly developing countries because of their market dependence on developed countries. Given the recent development of the Brazilian aquaculture, the analysis of the NTBs is critical face to its internationalization process. This article aims to analyze the impacts of NTBs implemented by EU to the Brazilian...
Conventional bioeconomic analyses focus on the economically optimal exploitation of the fish resources by maximizing the resource rent subject to a resource restriction. This paper expands this type of analysis by addressing the fishing activity's impact on the ecosystem biologically as well as economically. A dynamic bioeconomic model is used...
Hart Mountain National Antelope Refuge (HMNAR) established in 1936, is 101,000 ha in area. The refuge was grazed by domestic livestock from the 1870s until their exclusion in 1990. Just prior to removal of livestock, photopoints were taken at various riparian and wetland locations throughout the refuge to document riparian...
Fish production is a source of livelihood for millions of Nigerians both as primary and secondary income provider. The study examined the economics of fish harvesting in Yola, Nigeria with the objectives of examining the socioeconomic status of the fishers, determining the gross margin of fish harvesting , examining the...
Abalone, Haliotis asinina, is a high value shellfish for export trade that provide cash income to fishing households in some coastal communities in the Philippines. Stock enhancement is one of the fisheries management strategies that enable recovery of overfished stocks through release of juveniles and consequent stock increase through recruitment....
Many ITQ fisheries are subject to an upper limit or cap on ITQ-holdings by individual companies. The economic rationale for these caps seems to be to reduce the opportunities for monopolistic behaviour by the companies. A possible social cost of the caps is that limiting company size in fisheries, especially...
This paper will present some preliminary result from a study of post-harvest losses in the Sri Lanka tuna value chain. Fish losses refer to the decrease in edible fish mass throughout the part of value chain that specifically leads to edible food for human consumption. Sri Lanka is a unique...
Gender inequalities pervade aquaculture and fisheries. Participation is marked by strong gendered divisions of labour, and sector policy is gender-blind even though sociological and ethnographic studies show that policy impacts are highly gendered. In projects concerned with economic development, the main approach taken to address inequalities is to “empower women,”...
There are a number of problems associated with urban expansion and as cities continue
to grow the integration of green roofs can help to ease and offset many of them. This study
uses a combination of moss and Sedum as vegetation for experimental green roof sections in
order to test...
There are three main aspects of sustainability; the environmental, the social and the economic. When it comes to fisheries, stock sustainability is particularly important and the stock and ecosystem health has significant effects both on the environment and on the sector economy. In order to add value to a product,...
A. Elegantissima is not well understood, there is still much we don’t know about the anemone. What we do know is that they live in aggregations, where they divide the labor as mothers and warriors. The anemones have feeding tentacles and acrorhagi, the latter are attacking tentacles. Mothers are found...
In 2009 the Fisheries Research and Development Corporation (FRDC) established the Social Sciences Research Coordination Program (SSRCP) to increase industry and government understanding and uses of social sciences in marine and fisheries management. Since that time a number of projects have been funded and promoted by the FRDC through the...