The role of small-scale fisheries in developing countries has been widely discussed in the fisheries and‚
“commons”‚ literature. However, in the conservationist debate, even small-scale fishing has often been
seen as a potential evil that indeed threatens ecosystem health and should be broadly and rapidly
eliminated. Besides the global commitments...
The ecosystem approach to fisheries (EAF) challenges the sustainable
management of resources at an ecosystem level facing human well-being
and environmental health. Here we describe how economic analyses may
fill important knowledge gaps for such a challenge when regarding a
broader multispecies context, e.g. tracking signals of change in ecosystem...
Megacities impact distant fisheries behavior by modulating seafood demand and consumption. In the last
decades, Japanese food interest has grown considerably in South American cities, and the demand for raw
fish foods‚ sashimi - categories seems to be still increasing. In Southeastern Brazil, megacities such as
São Paulo show an...
Substitution and elasticity give about the history of supply and the demand structure for fish and seafood. It is also relevant to the detection of change in a particular exploited marine ecosystem. The purpose of this paper is to test if market elasticity of substitution of seafood categories can further...
Soil solarization trials were conducted during the growing seasons of 2016-2018 with the purpose of determining if solarization was an effective pre-planting soil disinfestation technique for tree nurseries in the Pacific Northwest. A large data set was collected on soil properties and biological indicators from 5 interdisciplinary experiments. This thesis...
A phytoplankton bloom dominated by the pennate diatom Nitzschia
curta (Van Heurck) Hasle was observed during January-February 1983 at
a receding ice-edge in the Western Ross Sea, Antarctica. The core of
the bloom was found between 100-150 Km from the ice-edge. Nitzschia
curta cell densities up to 22 x 10⁶...
This thesis describes a control tool for managers of a
Broiler Breeder Farm, a farm which raises chickens for the purpose
of fertile egg production. It presents the development of
a simulation of a Broiler Breeder Farm which uses a deterministic
step by step process to generate expected values of...
A comparative multi-fleet rationale of socioeconomic indicators is described aiming a
potential incorporation into fishery management advice at an ecosystem scale. A set of
performance indicators, based on a survey of different industrial fishing fleets in São
Paulo (SE Brazil) which investigated investment, fixed, effort, labour and sailingrelated
costs and...
Non-dilute salt strength solutions occur in many near surface geologic environments. In order to better understand the occurrence and movement of the water and salt, mathematical models for this non-ideal fluid need to be developed. Initial boundary value problems may then be solved to predict behavior for comparison with observations....
Microseris laciniata is a perennial, self-incompatible
species classified in subgenus Scorzonella. It is
morphologically the least specialized species in the genus,
in contrast to the members of subgenus Microseris, which
are morphologically advanced, self-compatible annuals.
First-generation hybrids were available from crosses
involving eight populations of two subspecies of Microseris
laciniata...