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@DrPlanktonguy@ecoevo.social
2024-05-11 15:33:26

I'm sold, but also admittedly biased...
#Plankton #Zooplankton #Phytoplankton

Small but mighty, plankton are some of the most powerful creatures on Earth
Explore the incredible underwater world of plankton.

@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
2024-03-02 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
2024-05-11 12:30:06

Weekend #Plankton #Factoid 🦐🦠
Like many #cladoceran #zooplankton,

image/png diagram of the asexual (parthenogenetic) and sexual (mating) reproductive cycle of Daphnia which can produce sexual resistant resting eggs.
image/jpeg a microscopic photograph of a oval shaped crustacean with long forward facing antenna and a small tail spine. Two dark spots are in a brood pouch on its back showing resistant resting eggs called ephippia. CC BY-SA 4.0 https://commons.m.wikimedia.org/wiki/File:Female_Daphnia_longispina_carrying_a_resting_egg_(%22ephippium%22).JPG#mw-jump-to-license
@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
2024-04-06 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
2024-02-17 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
2024-02-15 16:42:12

Reminder that all aquatic and #plankton ecologists should be on the #fediverse because the #Mastodon logo looks exactly like a Bosmina

Blue mastodon logo of an elephant head shape with downward trunk. Has an eyespot and a curvy "M".
A microscope image of a crustacean zooplankton Bosmina which is round and has a long probosis extending downwards similar to the Mastodon logo.
@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.