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51 - 75 of 79 Items << < 1 2 3 4 > >>
51 - 75 of 79 Items << < 1 2 3 4 > >>
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A two-year field study was made of a population of the California
Sea Mussel, Mytilus californianus, located on a protected tidal bench
at Yaquina Head on the Central Oregon Coast. This animal was
chosen because it is attached to the rocks,...
1974-05-29 (iso8601)
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This study applied brand choice model and stated preference data collected in French context by means of choice experiment to investigate value of intrinsic and extrinsic attributes of various fresh seafood species. The estimated models show that...
2012 (iso8601)
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As climate change awareness grows, embedded carbon has become an issue for affluent first world seafood consumers concerned with environmental sustainability. Diminishing wild fish stocks and rising fuel costs mean capture fisheries are becoming...
2008 (iso8601)
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Off-channel features such as alcoves and side channels can have important ecological functions for large rivers such as the Willamette River. Some species and age classes of fish may select these features instead of the main channel to feed, avoid...
1997-06-06 (iso8601)
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Didymosphenia geminata (Didymo) is a nuisance algae that can cover entire streambeds under certain environmental conditions. Numerous studies have shown that it changes the composition of stream invertebrates. Fishes in many headwaters are known...
2020-05-01
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Diets and foraging strategies of Glaucous-winged Gulls were
studied in areas with and without sea otters in the western Aleutian
Islands, Alaska. Gulls foraged on invertebrates (e.g., sea urchins,
limpets, chitons, mussels, and others) in the...
1982-02-01 (iso8601)
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Wind-driven coastal ocean upwelling supplies nutrients to the
euphotic zone near the coast. Nutrients fuel the growth of phytoplankton,
the base of a very productive coastal marine ecosystem
[Pauly D, Christensen V (1995) Nature 374:255–257]....
2007-03 (iso8601)
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Demand structure and market segmentation for seafood have been investigated intensively. However, most the researches so far applied traditional demand analysis and descriptive segmentation approach by separated models. The traditional demand...
2012 (iso8601)
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Most climate change predictions focus on the response of individual species to changing local conditions and ignore species interactions, largely due to the lack of a sound theoretical foundation for how interactions are expected to change with...
2012-11-07 (iso8601)
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Ultrastructural analysis and chemical inhibition studies were
carried out on first cleavage of Mytilus zygotes to determine possible
relationships between the mitotic apparatus and the cortex during
polar lobe formation.
The stages of mitosis...
1972-11-30 (iso8601)
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We developed a multiple linear regression model to
robustly determine aragonite saturation state (Ωarag) from
observations of temperature and oxygen (R² = 0.987, RMS
error 0.053), using data collected in the Pacific Northwest
region in late May...
2009-12-31 (iso8601)
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A bio-economic model, based on Faustmann rotation, was developed to analyze the relevance of
removing thinning activities which are part of the dominant technology used in blue mussel production in
Canada. Removing these density control activities...
2006-11 (iso8601)
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In recent years, there has been a growing interest of promoting and
rewarding the sustainable management in fisheries and aquaculture using
product differentiation through eco-labelling and organic labeling
respectively. At the same time food...
2010 (iso8601)
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I examined the biomechanical factors that influence the sizes of
intertidal macroalgae by studying a population of Fucus gardneri at Fogarty
Creek Point, OR. I constructed a mathematical model to predict optimal
sizes and probabilities of survival...
1994-08-29 (iso8601)
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Anthropogenic activities can induce major trophic shifts in aquatic systems, yet we have an incomplete understanding of the implication of such shifts on ecosystem function and on primary production (PP) in particular. In recent decades,...
2016-12-01
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With changing climate conditions and human impacts on ecosystems becoming a
big focus of study, it has become even more crucial to understand how our ecosystems
work. Community structure within rocky intertidal habitats is governed by a mix of...
2014-05-27 (iso8601)
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Thais (Nucella) emarginata is a common predatory gastropod of the
rocky intertidal system of western North America. It is usually found at
low tide on top of its sedentary prey, barnacles and mussels. Thais
is also highly polymorphic for shell...
1979-12-14 (iso8601)
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I. Executive Summary
There is increasing recognition from most quarters that the Endangered Species Act (ESA) needs to be improved. Exactly what those improvements should be is less uniform. This report examines the implementation of...
2005-05-01
2007-12-12 2005-08-17 |
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A goal of the Souhegan River instream flow assessment and Water Management Plan is the determination of Protected Instream Flow (PISF) values for designated reaches. PISF values must be established that protect legislatively mandated Instream...
2005-07-12
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The accumulation of domoic acid (DA) and saxitoxins (STX), phycotoxins produced by some species of Pseudo-nitzschia and Alexandrium, respectively, in coastal food webs are a focus of research on the West Coast of the United States due to the...
2015-12 (iso8601)
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There is an increasing world inventory of radiotechnetium (mainly
⁹⁹Tc) and it is inevitable that some of this will be released to the
environment. However, little is known about the environmental behavior
of this element.
This work examined...
1981-06-30 (iso8601)
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