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Studies on the coastal ecology and management of the Nabq Protected Area, South Sinai, EgyptGalal, Nasser January 1999 (has links)
No description available.
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The Pacific Coho salmon fishery : an intraseasonal and interregional economic analysis of the ex-vessel marketSwartz, A. Nelson 17 November 1978 (has links)
The ex-vessel coho salmon market has been paid scant attention
in the study of the salmon resources. This study is an attempt to
advance an understanding of the variations of ex-vessel prices and
landings during the coho season as well as between the various coastal
ports where the fish is landed.
This study presents an empirical analysis of the ex-vessel port
markets for coho salmon in Oregon and Washington. The objectives
of the study are to investigate the variation in landings and prices
during the fishing season and to compare those differences between
ports for both states. This study focuses on the determination of the
ex-vessel price mechanism and the decision behavior of coho fishermen
in their choice of ports to land the catch.
An economic model of each port is developed to explain the buying
behavior of processors and the selling behavior of fishermen. Each
port is treated as a distinctive market subject to external changes in
the abundance of coho, the conditions of the wholesale markets, and
the responsiveness of fishermen to prices in other ports.
Several econometric models are constructed to determine the
distinctive characteristics of the Oregon and Washington ex-vessel
port markets. The demand and supply at the different ports are estimated
by applying regression analysis to 32 different sets of data.
These data include a single year (1976) of transaction records for the
twelve Oregon ports, and four years (1973-1976) of landings records
for the five Washington coastal ports. Three different models are
used; a simultaneous equations model, a recursive model, and a
single equation model.
The major findings in the study are as follows: the ex-vessel
demand in most Oregon or Washington ports is highly elastic, which
suggests that changes in seasonal landings at a port do not have any
significant impact on the ex-vessel price.
While fishermen and other industry observers have noted differences
in seasonal ex-vessel price between ports, such differences do
not appear to exist. Average seasonal price differences between ports
do not vary when appropriate weights are applied to the average price
calculations.
The size (in pounds) of the coho salmon plays a major role in the
determination of the intraseasonal ex-vessel demand at all ports.
Estimations performed without accounting for this variation fail to
adequately explain ex-vessel price variation.
Another variable found to be a key factor in the explanation of
ex-vessel prices is the wholesale price. This factor and the size
variable accounted for most of the variation in ex-vessel port prices.
Even though the seasonal prices between ports are similar, the
intraseasonal variation in port price is partly the result of competition
for the fisherman's catch of coho. When two ports are located in such
a way that fishermen may easily land at either one, fishermen appear
to land at the port where price is greater. Ports such as La Push and
Neah Bay in Washington, and Bandon and Winchester Bay in Oregon
are the ports found to be alternative ports for the fishermen catching
coho in those areas.
Coastal ex-vessel prices do not appear to be established as a
result of equilibrium conditions at any particular port. Rather,
ex-vessel price and market clearing quantities are determined in the
aggregate. Each port's buyers will establish port price based on the
current aggregate equilibrium condition.
The aggregate coastal demand for coho at the ex-vessel level
was estimated for the 1976 season and found to be highly price elastic.
Given that aggregate supplies are augmentable, increases in coastal
landings will increase total returns to the ex-vessel fishery.
One additional finding suggests that the number of buyers in
most ports does not play a significant role in the determination of
intraseasonal variation of port ex-vessel prices. / Graduation date: 1979
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A comprehensive evaluation of product quality in the Pacific whiting (Merluccius productus) and albacore tuna (Thunnus alalunga) industries /Greene, Elizabeth. January 1900 (has links)
Thesis (M.S.)--Oregon State University, 2001. / Typescript (photocopy). Includes bibliographical references. Also available online.
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The effects of bottom-tending mobile fishing gear and fiber-optic cable burial on soft-sediment benthic community structure /Nenadovic, Mateja, January 2009 (has links)
Thesis (M.S.) in Marine Biology--University of Maine, 2009. / Includes vita. Includes bibliographical references (leaves 62-72).
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Assessment of the potential for culture of the Chinese clam (Chione gnidia) in the estuary of La Cruz, Sonora, MexicoAubert, Hernan, 1963- January 1990 (has links)
Growth and mortality of the chinese clam (chione gnidia) were examined in the Estuary of La Cruz, Sonora, Mexico from 1987 to 1989. Clams were reared in trays in two habitats of the Estuary of La Cruz, the pool and the canal, where four experiments were carried out. In experiment 1 growth and mortality under two densities and two environments was assessed. Experiment 2 yielded information on growth and mortality of clams growing on four different substrates and at two densities. Experiment 3 assessed growth and mortality in high density conditions, and experiment 4 assessed growth after a period of growth stagnation. In all cases, highly significant differences in growth and mortality were observed between environments. The pool was found to be the place where higher total growth and least mortality occurred. However, the sizes achieved by clams in the pool suggest that the Estuary of La Cruz is not a suitable environment for the cultivation of this clam, and that the introduction of C. gnidia in this area is not feasible under present habitat conditions.
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A comparative study of the fisheries of Martinique and Saint Lucia.Cecil, Robert Gerald. January 1966 (has links)
Martinique became a full overseas department of France in 1946 (27:802), and Saint Lucia will soon change its status from a BritiSh colony to an independent Caribbean nation. Such political changes indicate that these small islands must rely ever increasingly upon their own resources to satisfy their needs. [...]
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Economic aspects of the Canadian gulf fisheries.Bade, Max Florian. January 1966 (has links)
No description available.
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The fisheries biology and population dynamics of snapper Pagrus auratus in northern Spencer Gulf, South Australia /McGlennon, David. January 2003 (has links) (PDF)
Thesis (Ph.D.)--University of Adelaide, School of Earth and Environmental Sciences, Discipline of Environmental Biology, 2004. / "December 2003" Includes bibliographical references (leaves 203-219).
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Identifying habitat factors for canary rockfish (Sebastes pinniger) off Washington and Oregon using environmental data and trawl logbooks /Vestfals, Cathleen D. January 1900 (has links)
Thesis (M.S.)--Oregon State University, 2010. / Printout. Includes bibliographical references (leaves 124-131). Also available on the World Wide Web.
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Efficieny, risk and regulation compliance Applications to Lake Victoria fisheries in Tanzania /Lokina, Razack Bakari. January 2005 (has links)
Thesis (doctoral)--Göteborgs universitet, 2005.
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