نتایج جستجو برای: plankton gaps
تعداد نتایج: 58339 فیلتر نتایج به سال:
These first lines of Hensen’s article (Figure 1) in the “Fünfter Bericht” (1887) translate as follows [...]
Over the millennia, phytoplankton have evolved adaptations to reduce sinking rates and increase amount of time they are able stay in photic zone; one such adaptation is increasing form resistance with larger surface areas. Spines, flattened body shape, forming chains, so forth can area slow rates. While there many plankton rate activities accessible on web, this middle high school level laborat...
In aquatic ecosystems, primary production (the transformation of inorganic materials and light into living matter by photosynthesis) is operated mainly by small, unicellular algae that float freely in the upper layers of oceans and lakes and are collectively called phytoplankton, see for an illustration the phytoplankters depicted in figure 1. Since phytoplankton need light, they are confined t...
Efforts this year focused on testing our model of the effects of episodic increases in current shear on the dynamics and impacts of thin layers of phytoplankton and zooplankton. Thin layers are plankton patches that range in thickness from a few tens of centimeters to a few meters, yet can be sufficiently intense to affect biological rate processes and the performance of current and planned Nav...
Fish do it. Dolphins do it. Swimmers do it. Surface ships do it. In fact, the last German U-boat detected in the Great War was sunk because it did it. What they all do is create flow fields energetic enough to create bioluminescent "footprints." Because bioluminescent organisms are ubiquitous (particularly dinoflagellates, common members of marine plankton) flow-stimulated light emission repres...
The spawning season of the tonguefish Syacium ovale (Günter 1864) was determined by an analysis of the distribution of preflexion stage larvae in the Gulf of California. The larvae were collected during eight oceanographic surveys between 1984 and 1987. The spawning of this species starts in early summer and ends at the beginning of fall, with the highest reproductive activity in mid summer. Th...
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