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Invasive red lionfish Pterois volitans blow directed jets of water at prey fish

Creator:: Albins, Mark A. and Lyons, Patrick J.
Abstract:: Field and laboratory observations of feeding by invasive Pacific red lionfish Pterois volitans were conducted during June through August of 2008, 2009 and 2010 near Lee Stocking Island, Bahamas. Observations of this invasive marine predator revealed a previously undocumented piscivorous behavior. While slowly approaching prey fish, lionfish produce jets of...
Resource Type:: Article
Full Text:: water jets, to our knowl- edge, this is the first report of a fish that does so during the capture of

Macrofaunal modification of porewater advection: role of species function, species interaction, and kinetics

Creator:: Waldbusser, George G. and Marinelli, Roberta L.
Abstract:: ABSTRACT: Sedimentary habitats are complex associations of biotic, chemical, and physical processes comprising ‘ecosystem function’. The relative importance of these processes to biogeochemical cycling in highly reactive, permeable sediments remains poorly understood. We report results from several field experiments in a muddy-sand intertidal flat dominated by 2 functionally different types...
Resource Type:: Article
Full Text:: poorly understood. We report results from several field experiments in a muddy-sand intertidal flat

When is bigger better? Early marine residence of middle and upper Columbia River spring Chinook salmon

Creator:: Tomaro, Londi M., Teel, David J., Peterson, William T., and Miller, Jessica A.
Abstract:: Early ocean residence is considered a critical period for juvenile salmon although specific survival mechanisms are often unidentified and may vary by species or life stage. Columbia River spring-run Chinook salmon Oncorhynchus tshawytscha abundance has declined dramatically since the early 1900s. To elucidate mechanisms of early marine survival, we tested...
Resource Type:: Article
Full Text:: 142 ± 4 147 ± 3 16 ± 4 0.38 ± 0.10 0.28 ± 0.05 134 ± 4 24 ± 4

North Atlantic right whale habitat in the lower Bay of Fundy and on the SW Scotian Shelf during 1999–2001

Creator:: Baumgartner, Mark F., Cole, Tim V. N., Clapham, Phillip J., and Mate, Bruce R.
Abstract:: Simultaneous visual and oceanographic surveys were conducted in the lower Bay of Fundy and in Roseway Basin of the SW Scotian Shelf during the summers of 1999 to 2001 to investigate the physical and biological oceanographic factors associated with North Atlantic right whale occurrence. Sightings of right whales were recorded...
Resource Type:: Article
Full Text:: the interannual variability in the en- vironmental variable of interest. Inter-regional differ- 142

Landscape dynamics and resulting species interactions: the cod-capelin system in the southeastern Bering Sea

Creator:: Ciannelli, Lorenzo and Bailey, Kevin Mclean
Abstract:: Capelin are a major component of cod diet in many ecosystems of the North Atlantic. In the Bering Sea, however, the percentage of capelin found in Pacific cod stomachs is negligible. We hypothesize that the landscape (or ‘seascape’) features of hydrography and bathymetry of the Bering Sea impose a constraint...
Resource Type:: Article
Full Text:: should be robust to the changes in sampling grid. From the results of our analysis, we report that in

Phenology in Calanus funmarchicus; hypotheses about control mechanisms

Creator:: Miller, Charles B., Cowles, Timothy J., Wiebe, Peter H., Copley, Nancy J., and Grigg, Helen
Abstract:: Calanus finmarchicus (Gunnerus) stratify narrowly near 500 m depth during their fifth copepodite resting phase in North Atlantic Slope Water off southern New England, USA. They probably achieve this by migration to a specific, daytime isolume. Photoperiod information provided by light intensity at depth could serve as a cure for...
Resource Type:: Article
Full Text:: ) report that Blake's observations have not been duplicated when an attempt was made. Similar claims of

Seasonal variation of male-type antennular setation in female Calanus finmarchicus

Creator:: Miller, Charles B., Crain, Jennifer A., and Marcus, Nancy H.
Abstract:: Female calanoid copepods of the family Calanidae can mature with either the juvenile and most typical female pattern of setation, termed trithek (T), or with the male pattern, termed quadrithek (Q). It was suggested by Fleminger (1985), but not proved, that females with the Q pattern have switched from development...
Resource Type:: Article
Full Text:: regardless of starting stage. We briefly report here another rear- ing experiment with C. finmarchicus from

Biological and physical ocean indicators predict the success of an invasive crab, Carcinus maenas, in the northern California Current

Creator:: Yamada, Sylvia Behrens, Peterson, William T., and Kosro, P. Michael
Abstract:: An introduced population of European green crabs Carcinus maenas was established in San Francisco Bay (California, USA) prior to 1989. Subsequently, their larvae were likely carried northward into the embayments of Oregon, Washington (USA), and British Columbia (Canada) by the unusually strong Davidson Current during the winter of the El...
Resource Type:: Article
Full Text:: repre- sents the ratio of the monthly copepod biomass (mg C m−3). In Table 4 we report anomalies

Columbia River plume fronts. II. Distribution, abundance, and feeding ecology of juvenile salmon

Creator:: De Robertis, Alex, Morgan, Cheryl A., Schabetsberger, Robert A., Zabel, Richard W., Brodeur, Richard D., Emmett, Robert L., Knight, Carolyn M., Krutzikowsky, Gregory K., and Casillas, Edmundo
Abstract:: Well-defined fronts develop at the seaward edge of riverine plumes where suspended materials and planktonic organisms are concentrated by convergent water flows. Riverine plume fronts have been hypothesized to be favorable fish habitats because they can lead to localized prey aggregations. We examined the spatial distribution of juvenile Pacific salmonids...
Resource Type:: Article
Full Text:: Advisory Board Report 5. Northwest Power and Conservation Council, Portland, OR Brandt SB (1993) The

Late spring and summer patterns of euphausiid reproduction in Southeast Alaska fjord waters

Creator:: Szabo, Andrew R. and Batchelder, Harold P.
Abstract:: Abundance, size and development stage data for furcilia and juvenile euphausiids and data on timing and prevalence of attached spermatophores on adult females are used to infer spawning times by four euphausiid species in Frederick Sound and lower Stephens Passage, Southeast Alaska. Results from net tows conducted between late May...
Resource Type:: Article
Full Text:: abundance comparisons. 140 141 RESULTS 142 44 random and 110 non-random net samples collected

ScholarsArchive@OSU

Invasive red lionfish Pterois volitans blow directed jets of water at prey fish

Macrofaunal modification of porewater advection: role of species function, species interaction, and kinetics

When is bigger better? Early marine residence of middle and upper Columbia River spring Chinook salmon

North Atlantic right whale habitat in the lower Bay of Fundy and on the SW Scotian Shelf during 1999–2001

Landscape dynamics and resulting species interactions: the cod-capelin system in the southeastern Bering Sea

Phenology in Calanus funmarchicus; hypotheses about control mechanisms

Seasonal variation of male-type antennular setation in female Calanus finmarchicus

Biological and physical ocean indicators predict the success of an invasive crab, Carcinus maenas, in the northern California Current

Columbia River plume fronts. II. Distribution, abundance, and feeding ecology of juvenile salmon

Late spring and summer patterns of euphausiid reproduction in Southeast Alaska fjord waters

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