![]() This type of sequence photography is usually used to capture events, mostly sports or anything where the subject is moving fast. The action is recorded at different stages, within the same frame. ![]() In this type, the camera remains in a fixed position and the moving subject is emphasized. This is the most popular type of sequence photography, because it is also the most spectacular one. ![]() – Sequence photography with a fixed camera and a moving subject. The long focal length is also good because it allows the photographer to capture only the head and shoulders of the interviewed subject. For this type of photography, a camera on a tripod is used and the lenses generally have a long focal length, because they are placed at a comfortable distance from the subject, so that he/she doesn’t feel disturbed. This is usually a technique used in photographic interviews. In this type both the camera and the subject remain in their initial position throughout the entire shooting session. – Sequence photography with a fixed camera and a fixed subject. This is achieved by taking a series of frames at a high shutter speed and combining them later in a photo editing software.Īlthough the most impressive and the most used technique of sequence photography is usually used to capture sports’ events, there are other types of sequence photography. Combining the resulting images with this technique will allow you to show motion in a static image and the final result can be quite impressive. Capturing a subject in motion will provide you with images which, basically, have the subject at different moments of its movement throughout the frame, usually with the same background (in the case of the most popular type, where the camera is fixed but the subject moves). However, cultural eutrophication coincided with altered planktonic food webs as autotrophic and heterotrophic communities responded to increasing concentrations and changing ratios of inorganic and organic nutrients, potential prey, and predators.Sequence photography is the technique of combining different shots of the same subject to present its course of action in a final single image. Phytoplankton, bacteria, heterotrophic nanoplankton and dinoflagellates, ciliates, and copepods exhibited strong seasonal cycles in abundance driven by temperature and resource availability, typically with summer maxima and winter minima. A long-term study is documenting changes in these parameters: previous papers Verity (Estuaries 25:944–960, 2002a, Estuaries 25:961–975, b) reported on hydrography, nutrients, chlorophyll, and particulate matter during 1986–1996 plankton community responses are reported here. ![]() The Skidaway River estuary, GA (USA), a tidally dominated subtropical system surrounded by extensive Spartina salt marshes, is experiencing steady increases in nutrients, chlorophyll, and particulate matter and decline in dissolved oxygen, associated with cultural eutrophication. Combined with earlier results, we conclude that microzooplankton can be important mediators of carbon and energy flow in the upper SFE-D and may be a “source” to the metazoan food web. Thus, microzooplankton grazing consumed as much as 73% of phytoplankton standing stock during spring and ~15% of standing stock during summer of both years. Phytoplankton growth rates peaked in April 2004 (~0.7 day−1) but were much lower (<0.1 day−1) in spring 2005, despite relatively high abundance. In both years, microzooplankton grazing rates were high (0.5–0.7 day−1) during the spring and lower (~0.2 day−1) during summer. Heterotrophs dominated the protist community in Suisun Bay and Grizzly Bay, particularly in the <20 μm size range, and peaks in protistan microzooplankton biomass were associated with high phytoplankton biomass. We sampled protist plankton abundance and composition at two sites (Suisun Bay and Grizzly Bay) approximately monthly from February 2004 to August 2005 and conducted dilution experiments during spring and summer of both years in Suisun Bay. We quantified the role of microzooplankton (heterotrophic–mixotrophic protists <200 μm) in the food web of the upper SFE-D. Addressing these losses depends on understanding trophodynamics in the food web that supports threatened species. Decline of native pelagic species in estuarine systems is an increasing problem, especially for native fishes in the San Francisco Estuary and Delta (SFE-D).
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