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@DrPlanktonguy@ecoevo.social
2024-03-09 14:56:50

Weekend #Plankton #Factoid 🦐🦠
Are you a budding copepodologist? Then there is a book just for you. Charles Miller, a retired, prominent copepod expert last year published a book "Oar Feet and Opal Teeth". The title refers to the Greek for

image/jpeg a grey book cover showing an orange-red torpedo shaped copepod with long antennae. Title reads Oar Feet and Opal Teeth - about copepods and copepodologists. By Charles B. Miller.
@DrPlanktonguy@ecoevo.social
2024-05-04 12:53:03

Weekend #Plankton #Factoid 🦐🦠
There have been a number of newly discovered deep-sea hydrothermal vent fields around the East Pacific Rise and Mid-Atlantic Ridge using autonomous underwater vehicles (#AUVs)…

image/jpeg two chimney structures emerge from the bottom of the ocean producing clouds of black smoke. Various life forms are seen along the bases. CCA 2.5 https://commons.m.wikimedia.org/wiki/File:East_Scotia_Ridge_-_Plos_Biol_04.tif
image/jpeg a half submerged photo of a bright yellow autonomous underwater vehicle which sits at the water surface and an oceanographic research ship in the distance. CCA 2.5 https://commons.m.wikimedia.org/wiki/File:MBARI_AUV_off_Southern_California.jpg

Scientists discover three new hydrothermal vent fields on the Mid-Atlantic Ridge
Scientists have discovered three new hydrothermal vent fields over a 434-mile-long stretch of the Mid-Atlantic Ridge during the first scientific expedition aboard Schmidt Ocean Institute's recently launched research vessel Falkor (too).

@DrPlanktonguy@ecoevo.social
2024-03-02 14:00:20

Weekend #Plankton #Factoid 🦐🦠
Holopedium spp. is a strange cladoceran #zooplankton in lakes. They create a large gelatinous polysaccharide mantle ~2x their body length, which helps with buoyancy and…

image/jpeg cupped hands hold a large number of jelly-like balls that resemble fish eggs. Photo from Andrew Tanentzap.
image/jpeg a transparent crustacean zooplankton with darkened gut and eye-spot with 3 green eggs. Long antennae extend in front. Size bar suggests it is about 2mm long. http://cfb.unh.edu/cfbkey/html/Organisms/CCladocera/FHolopedidae/GHolopedium/Holopedium_gibberum/holopediumgibberum.html

Calcium loss turning lakes to 'jelly'
New research on a number of Canadian lakes show that historical acid deposits as a result of industry have greatly reduced calcium levels in the water - dramatically impacting populations of calcium-rich plankton such as Daphnia water fleas that dominate these ecosystems.

@DrPlanktonguy@ecoevo.social
2024-02-24 14:00:09

Weekend #Plankton #Factoid 🦐🦠
In marine systems where high nutrients lead to #hypoxia (low oxygen), it is commonly thought animals must avoid these zones - wrongly. Many types of

image/jpeg a series of vertical sediment trap tubes in a cross shape are deployed off the side of a ship by crew of the Meteor. Photo Jon Roa, Geomar https://www.geomar.de/en/news/article/anpassung-an-sauerstoffmangel-zooplankton-beeinflusst-die-effizienz-der-biologischen-kohlenstoffpumpe-im-humboldtstrom-vor-peru
image/jpeg a translucent shrimp-like creature with large black eyes and many legs with many bright orange pigmented underside spots swims downward. Euphausia mucronata

Hypoxia-tolerant zooplankton may reduce biological carbon pump efficiency in the Humboldt current system off Peru - Communications Earth & Environment
Grazing of sinking particles by hypoxia-tolerant zooplankton likely reduces biological carbon pump efficiency in the Oxygen Minimum Zone off Peru, suggest analysis of drifting sediment trap samples and in situ imaging observations.

@DrPlanktonguy@ecoevo.social
2024-04-06 12:30:26

Weekend #Plankton #Factoid 🦐🦠
Did you know many harmful #invasive species are #zooplankton? A less kn…

image/jpeg an underwater photo of a very transparent, shrimp-like crustacean with prominent black eyes and feathery antennae and appendages. Photo of Mysis relicta Per Harald Olsen/NTNU CCA 2.0

Great Lakes Food Webs Science: Mysid Shrimp - 11 March 2024
“Night, when words fade and things come alive” - Antoine de Saint-Exupery. One of the species the Lower Trophic Food Webs lab is responsible for monitoring in the Great Lakes is Mysis diluviana (previously called M. relicta which is native to Northern Europe), the Opossum Shrimp (order Peracarida, family Mysidae). For a member of the zooplankton, this species is quite large (up to 25 mm in length), and their common name comes from the females having a prominent brood pouch (a marsupium) bet…

@DrPlanktonguy@ecoevo.social
2024-03-23 13:00:41

Weekend #Plankton #Factoid 🦐🦠
Deep-water habitats in the ocean often have very stange looking #zooplankton. This is Phronima, a meso-pelagic parasititoid hyperiid

image/jpeg a thin, transparent, glass-like crustacean zooplankton with prominent claws and an orange spot against a black background. https://blog.csiro.au/take-a-bite-at-the-bight-and-its-deep-ocean-ecosystem/
image/jpeg a Phronima amphipod sits inside of a barrel of a transparent salp, looking rather like a transparent stuffed olive. Photo from MBARI.

Creature Feature: Phronima - Twilight Zone
The phromina, a small, translucent crustacean, makes its home inside its victims’ hollowed-out bodies.

@DrPlanktonguy@ecoevo.social
2024-04-20 12:41:38

Weekend #Plankton #Factoid 🦐🦠
A new paper on #mixotrophs. These protists are both plants or animals. Some algae, often

image/jpeg an illustration of an oblong organism with a groove running around and along the outer cell wall. Organelles are shown inside. Unarmored dinoflagellate Gymnodinium agile sp. https://en.m.wikipedia.org/wiki/File:Gymnodinium_agile_sp.jpg
image/jpeg illustration of an armoured organism with three extremely long sharp curved pointed spines. Original name Ceratium tripos (O.F.Müller, 1776). Now accepted as Tripos muelleri (Bory de Saint-Vincent, 1824). This dinoflagellate is recognizable by its U-shaped horns. https://commons.m.wikimedia.org/wiki/File:Ceratium_tripos.jpg#mw-jump-to-license

Neither Plants nor Animals, These Ocean Organisms Protect Their Ecosystems against Heat Waves
Mixotrophs, which have characteristics of both animals and plants, could help blunt the effects of marine heat waves on ocean ecosystems

@DrPlanktonguy@ecoevo.social
2024-02-17 14:00:40

Weekend #Plankton #Factoid 🦐🦠
For #zooplankton, there are few true rules about feeding. Herbivores will consume prey, and omnivores will consume anything they can handle - live or dead.

image/jpeg a rosy coloured hydrozoan jellyfish with a flat top and long trailing red tentacles drifts in green water. Kåre Telnes https://www.seawater.no/fauna/cnidaria/periphylla.html
image/jpeg a yellow-orange coloured, stout, shrimp-like creature with a large eye and dangling swimming legs. Orchomenella sp. https://species.m.wikimedia.org/wiki/Orchomenella

Tiny crustaceans discovered preying on live jellyfish during harsh Arctic night
In the dark and cold of the months-long polar night, food resources are limited. Some groups of marine organisms in the polar regions overcome this challenge by going into a metabolic resting state in winter, surviving on reserves accumulated during the short growth season.

@DrPlanktonguy@ecoevo.social
2024-03-16 13:00:23

Weekend #Plankton #Factoid 🦐🦠
Slug news! Blue Sea Dragons (Glaucus atlanticus) are #Nudibranchs, a soft gastropod "sea slug", which as neuston

image/jpeg an elongated organism with long tail and extended feathery lateral papillae, swims in shallow water above a sandy bottom. It is vibrantly bright blue with elongated dark blue stripes. Wikimedia Commons. https://commons.m.wikimedia.org/w/index.php?search=Blue+glaucus&title=Special:MediaSearch&type=image

Rarely seen 'blue dragons' are disrupting spring breakers' beach plans
The beautiful 'blue dragons' sweeping beaches look like magical Pokemon – but experts warn travellers to stay away.

@DrPlanktonguy@ecoevo.social
2024-03-30 12:30:59

Weekend #Plankton #Factoid 🦐🦠
An important grouping of marine #zooplankton is "temporary" #Meroplankton

image/jpeg an elongated wildly colorful (reds, blues, greens) shrimp-like creature with very prominent stalked eyes and mantis formed forward facing claws. Cédric Péneau Creative Commons Attribution-Share Alike 4.0
image/jpeg a microscope image of a transparent elongated crustacean having long forward legs with pincers, prominent stalked eyes and leaf-like extensions from the head. Photo from abyssalfauna.
@DrPlanktonguy@ecoevo.social
2024-04-27 13:25:15

Weekend #Plankton #Factoid 🦐🦠
Forams are a shelled amoeboid #zooplankton, ecologically important to the worlds #oceans

image/jpeg a photomicrograph of a golden globular shelled protozoan with long spines against a dark brown background. Live Ammonia tepida benthic foraminiferan collected from San Francisco Bay. Phase-contrast photomicrograph by Scott Fay, UC Berkeley, 2005. CCA 2.5

Marine plankton behavior could predict future marine extinctions, study finds
Marine communities migrated to Antarctica during the Earth's warmest period in 66 million years long before a mass-extinction event.

@DrPlanktonguy@ecoevo.social
2024-04-13 13:17:26

Weekend #Plankton #Factoid 🦐🦠
The ubiquitous tool of #zooplankton #science is the Plankton Net. The fi…

image/jpeg portrait of an older distinguished man in red British medical corps army uniform. Doctor John Vaughan Thompson painted by D. Roux, London, circa August 1835. Public Domain.
image/jpeg sketch of a bagged net hanging from a bar with a hoop opening and tied at the bottom. From HMS Challenger Expedition. Public Domain.
Photo of a plankton net being retrieved via a winch from a sampling stage on a ship by a technican. Photo from DFO. Public Domain.
image/jpeg a microscopic photo of a highly accurate grid of white nylon plastic against a black background. Nitex mesh.
@DrPlanktonguy@ecoevo.social
2024-02-10 14:11:05

Weekend #Plankton #Factoid 🦐🦠
Why are plankton ecologists *so excited about the launch of #NASA PACE #satellite

image/jpeg diagram of the Ocean Colour Instrument on the PACE satellite. It is a large boxy device with various tubes. Labels are earth shield (for radiators), radiators, star tracker, data control interface units, and two slit grating hyperspectral spectrographs (ultraviolet-to-visible and visible-to-near-infrared). From NASA.

NASA PACE - Ocean Color Instrument
PACE will use a highly advanced optical spectrometer as its primary sensor to measure properties of light over portions of the electromagnetic spectrum