How To Use Planktonic In A Sentence
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Thus, the surface to volume ratio should be related to silicic acid flows in size-based biogeochemical models of planktonic ecosystems.
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The effects of fisheries, focusing on the top predators and herbivores of the food web, is globally visible in the disappearance of large fish, sharks, turtles, crustaceans and plants, and consequent increases in smaller fish species, sea urchins, etc., and their phytoplanktonic or macrophyte food.
Marine biodiversity
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The data from the planktonic protistan biodiversity (rDNA, rRNA, transcriptomes, imaging) will allow statistical analyses of populations and ecology on the basis of the nucleotidic sequences and their genetic variability.
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Like the rest of the world's seas, the Sargasso Sea has a population of the subsurface algae called coccoliths as well as planktonic foraminifera.
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Endemic marine biota are typical for this interval; the restricted epicontinental seas favoured in situ evolution of benthonic, planktonic and nektonic organisms.
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Our results suggest that in eutrophic lakes fish predation on zooplankton may be more important than nutrient excretion by fish for the structure and dynamics of planktonic communities.
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Our observations demonstrate that coccoliths, and probably also planktonic foraminiferan tests, reach the Challenger Deep intact," said Gooday.
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Because strain Fryx1 is a purple non-sulfur bacterium, this is the first example of a truly planktonic isolate among this group of phototrophic purple bacteria (van Gemerden and Mas 1995).
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Polychaetes usually have separate sexes; many polychaetes hatch into a particular type of planktonic larva, the trochophore, which later metamorphoses into a juvenile annelid.
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Much of this distinctiveness can now be ascribed to the influence of Actinocyclus normanii in both the planktonic and benthic food webs.
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Unexpectedly, even juvenile mysids, which are never planktonic, have similar optics to those of larval euphausiids and decapods, and form refracting superposition eyes in adults.
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Planktonic foraminifera can be used to obtain data relating to surface water temperatures and oceanic circulation patterns.
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Small fish such as herrings and sardines eat tiny planktonic animals found in the reef.
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A lack of this metal is commonly the brake that stops the growth of planktonic algae.
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Chalk, though it may include shell fragments, is predominantly composed of coccoliths from planktonic algae, forming fine-grained limestone.
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Young feed on planktonic cladocerans, copepods, ostracods, and mites; chironomid, trichopteran and ephemeropteran larvae; and bottom ooze.
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We infer from our oxygen isotope measurements in planktonic foraminifera that the Larsen B ice shelf has been thinning throughout the Holocene, and we suggest that the recent prolonged period of warming in the Antarctic Peninsula region, in combination with the long-term thinning, has led to collapse of the ice shelf.
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When the babies hatch, they are the size of a grain of rice. New hatchlings are planktonic for six to nine weeks.
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Basking sharks cruise slowly at about two knots with their mouths wide open, capturing tiny planktonic creatures in thousands of filters called gill rakers as the water passes through the gill slits.
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Far from land in the deep sea, where little material comes from erosion of the land, the bottom sediment is made up mainly of shells of planktonic organisms, especially foraminifera.
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There's a constant stream of planktonic motes going past.
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We describe a simple procedure to allow the broad nature of the organic substrates used for planktonic bacterial growth to be determined.
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Sinistral clades also did not originate in the less planktonically productive insular Indo-West Pacific and Caribbean.
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Many are planktonic like the diatoms and Sargassum, floating free near the water surface, and being carried along by the surface currents.
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A mid-Albian age has been recorded from marine planktonic microfossils found in limestones at the lower levels of the Las Chilcas Formation.
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If acidification kills tiny sea snails known as pteropods, as it is likely to, the Pacific salmon that feed upon these planktonic creatures may also die.
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Planktonic larvae, also known as "meroplankton" are the most common early life stage of marine invertebrates, many of whom live on the bottom as adults.
Planktonic larvae
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Also, other microfossils such as diatoms, radiolaria, and planktonic and benthic foraminifera are useful in certain parts of the Palaeocene.
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The diurnal vertical migration of planktonic Ostracoda is studied based on the analysis of stratified samples of zooplanktons in the IONESS system.
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18O values of the planktonic foraminifera Globigerina bulloides and the development of the polar foraminifera Neogloboquadrina pachyderma (s.) left coiling.
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In addition, the first planktonic graptolites evolved, though some species of graptolites became extinct.
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The invertebrate fauna includes many planktonic forms, particularly jellyfish and the stemless crinoid Saccoma, and also nektonic organisms such as cephalopods.
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Within the plankton, holoplankton are those that spend their entire life cycle in the plankton, while meroplankton are those organisms that are only planktonic for part of their lives (usually the larval stage), and then move into the nekton or a benthic habitat.
Plankton
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These larvae will also metamorphose into adults sooner than their long-armed brethren and thus are vulnerable to planktonic predators for a shorter period of time.
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Both adults and juveniles feed on benthic algae as well as on benthic and planktonic crustacea.
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Pelagic biogenic sediments consist of the fine-grained skeletal debris of marine planktonic and benthonic organisms.
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The researchers were therefore surprised to discover that foraminiferan tests sampled from the Challenger Deep contained calcareous components, including the dissolved remnants of coccoliths, the calcium carbonate plates of tiny algae called coccolithophores, and planktonic foraminiferan test fragments.
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Many polychaetes hatch into a particular type of planktonic larva, the trochophore, which later metamorphoses into a juvenile annelid.
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Resting eggs of planktonic organisms from datable sediment cores are increasingly used to reconstruct historical information on the abundance, size, genetic composition, and microevolution of planktonic organisms.
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Within the plankton, holoplankton are those that spend their entire life cycle in the plankton, while meroplankton are those organisms that are only planktonic for part of their lives (usually the larval stage), and then move into the nekton or a benthic habitat.
Plankton
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The group that has been most commonly analysed morphometrically is the planktonic foraminifers, largely because of their well-established taxonomy and their optimal fossil record.
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Based on gastropods, bivalves, and planktonic foraminifera, Kilmer assigned this formation to the Turonian.
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The team did not limit themselves to foraminifera but used other planktonic groups such as the coccoliths and radiolaria.
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The Gracisce packstones contain a rich foraminiferal assemblage, composed of larger and planktonic foraminifera along with authigenic glauconite.
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Because strain Fryx1 is a purple non-sulfur bacterium, this is the first example of a truly planktonic isolate among this group of phototrophic purple bacteria (van Gemerden and Mas 1995).
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This would not be surprising if we consider extant marine arthropods such as Crustacea where it is usual that two or more planktonic larval stages occur prior to metamorphosis.
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Within the plankton, holoplankton are those that spend their entire life cycle in the plankton, while meroplankton are those organisms that are only planktonic for part of their lives (usually the larval stage), and then move into the nekton or a benthic habitat.
Plankton
