Protein microcapsules (PM) were developed as a tool for investigating aspects of dietary protein utilization by mussels, Mytilus edulis trossulus. Digestion of PM in vitro by protease, trypsin, amylase and extracts from the gut of mussels varied significantly depending on the type of protein encapsulated or whether carbohydrates were added...
For data following a balanced mixed Anova model, the standard Anova method typically leads to exact F tests of the usual hypotheses about fixed effects. However, for most unbalanced designs with most hypotheses, the Anova method does not produce exact tests, and approximate methods are needed. One approach to approximate...
Modeling and analyzing the combined effects of disease and population dynamics
is important in understanding the effects of mechanisms such as pathogen transmission
and direct competition between host species on the distribution and abundance of different
species in an ecological community. Mathematical analysis of such models in a
spatially explicit...
The Otago (CRA 7) and Southland (CRA 8) regions are managed with distinct individual transferable quotas (ITQs) as part of the New Zealand quota management system (QMS). However, for assessment purposes, they are considered as a single stock known as the NSS (North-South Islands - South) rock lobster stock. Currently,...
In the early 1990s, the crisis of the fishing industry resulted in both economic and human tragedies. Drawing conclusions from the crisis the fishing fleets experienced at that time, some groups of producers started to think of better enhancement of their production. Since then, they have tried to adapt their...
Reefs and lagoons ecosystems of French Polynesia have been since a very
long time the support of important traditional activities. They are today
concerned by conservation public policies, which have considerable
consequences about the relations between local societies and their
environment.
The necessity to stop the degradation of marine biodiversity...
The biology of the two external Acarapis mites of honey bees,
Acarapis dorsalis Morgenthaler and Acarapis externus Morgenthaler
was studied. It was observed that both Acarapis species have similar
developmental period (8-9 days) with males emerging earlier than
females.
Mite load and infestation rate of A. dorsalis decreased as bees...
This work sets forth a reformulation of Levins' loop analysis for the qualitative modeling of complex dynamical systems. Relationships between members of ecological communities can be analyzed through a qualitatively specified community matrix, whereby +1, -1, or 0 represent effects of one species upon another. A contribution is made to...
Thirteen New World populations of Megachile rotundata and M. apicalis and
two Old World populations of M. rotundata were analyzed at 23 enzyme loci using
cellulose acetate electrophoresis. Conventional and G- or C-banded karyotypes were
also examined in these populations. The principal findings are (1) No differences
were found in...