نتایج جستجو برای: tube sinking
تعداد نتایج: 98938 فیلتر نتایج به سال:
BACKGROUND Mortality is a main driver in zooplankton population biology but it is poorly constrained in models that describe zooplankton population dynamics, food web interactions and nutrient dynamics. Mortality due to non-predation factors is often ignored even though anecdotal evidence of non-predation mass mortality of zooplankton has been reported repeatedly. One way to estimate non-predat...
The movement parameters of yellow fin tuna schools were analyzed by means of scanning sonar in tuna purse seine capture situations in the Oman Sea in June 2010. There was significant difference in swimming speed and radial swimming direction between the escaped and captured schools. In escaped cases, the fish schools swam faster with mostly horizontal avoidance behavior to the sound stimuli fro...
Temperate shelf seas are productive areas with the potential to export high quantities of particulate organic carbon (POC), as sinking particles, sediments or off-shelf open ocean. The amount which can be exported depends partly on POC produced and remineralization processes occurring material. Here, we assessed relative seasonal importance microbial respiration bacterial production associated ...
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