Tag Archives: algae

Taking part in round with the filters and lighting whereas inspecting a

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Taking part in round with the filters and lighting whereas inspecting a ciliate. This single cell is within the genus Frontonia. It has ingested quite a few sorts of algae, which shine on this mild. It’s lower than 300 microns in size. The lengthy strand is cyanobacteria. That is life on the backside of the meals chain. Collected from a freshwater Florida pond and seen with 200X. #ciliate #sparkle #life #species #cell #algae #microbe #microbes #lighting #microscopy #microbiology #science #shiny #foodchain #foodweb #pondlife #freshwater #protist #protozoa

 

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This is a single cell ciliate in the genus Frontonia. It’s a microbial eukaryote…

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This is a single cell ciliate in the genus Frontonia. It’s a microbial eukaryote. This cell is green due to the numerous symbiotic algae cells living within it. The mouth is middle left, and the macronucleus is the large oval at right, with the small oval the contractile vacuole. This cell is home to numerous other cells, and makes up the unseen biodiversity at the bottom of the food chain. Collected from a freshwater Florida pond and viewed with 400x DIC by @microbialecology #ciliate #algae #symbiosis #symbiotic #green #protist #protozoa #ecology #biology #biodiversity #pondlife #florida #cellbiology #microalgae #creature #foodchain #cell #life

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A number of the Tardigrade movies I publish make the little microbe look awkward in a d…

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A number of the Tardigrade movies I publish make the little microbe look awkward in a drop of water on a glass slide. Here’s a extra life like view of two Tardigrades transferring round a microbial mat (of cyanobacteria) they’re feeding on, with issues for his or her legs and claws to seize on to- they’re very elegant. Waterbears are famously powerful, however not immortal. Sped up 6x actual time and magnified 40x. I collected these from a microbial mat 3m depth in a freshwater Florida spring. #tardigrade #waterbear #feeding #cyanobacteria #algae #timelapse #animal #microbe #microbiology #pondlife #freshwater #spring #ecology #foodchain #florida #species #wild #waterbears

 

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A timelapse video exhibiting a number of sorts of microbes shifting in a single drop of w…

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A timelapse video exhibiting a number of sorts of microbes shifting in a single drop of water. At middle is a transparent bare amoeba. Cyanobacteria like Oscillatoria additionally glides previous among the many filaments. Single diatoms transfer throughout the slide. Bacillaria are the stacked colonies of diatoms which slide alongside one another. Magnified 200x and velocity elevated 6x real-time. Collected from a freshwater Florida spring. #amoeba #algae #diatom #cyanobacteria #microbe #timelapse #pondlife #freshwater #science #ecology #micro organism #life #species #foodchain #foodweb #aquatic #motion #microbiology #science #florida

 

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Here’s a time lapse video of a microbial mat in a single water drop. You possibly can se…

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Here’s a time lapse video of a microbial mat in a single water drop. You possibly can see it’s comprised of assorted species of Cyanobacteria and different filamentous micro organism. These creatures actively transfer, and are widespread meals for Tardigrades. I collected this from a freshwater spring and enlarge 400x with Section microscopy, sped up 6x. #cyanobacteria #micro organism #timelapse #drop #microbe #microbiology #freshwater #pondlife #algae #ecology #section #science #microbe #micro #microscopy #biodiversity #ecology #foodchain

 

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Shock rescue of Jamaica coral reefs exhibits nature can heal

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Everton Simpson squints on the Caribbean from his motorboat, scanning the dazzling bands of shade for hints of what lies beneath. Emerald inexperienced signifies sandy bottoms. Sapphire blue lies above seagrass meadows. And deep indigo marks coral reefs. That is the place he is headed.

He steers the boat to an unmarked spot that he is aware of because the “coral nursery.” ”It is like a forest beneath the ocean,” he says, strapping on blue flippers and fastening his oxygen tank earlier than tipping backward into the azure waters. He swims straight down 25 toes carrying a pair of steel shears, fishing line and a plastic crate.

On the ocean ground, small coral fragments dangle from suspended ropes, like socks held on a laundry line. Simpson and different divers are likely to this underwater nursery as gardeners thoughts a flower mattress — slowly and painstakingly plucking off snails and fireworms that feast on immature coral.

When every stub grows to concerning the measurement of a human hand, Simpson collects them in his crate to individually “transplant” onto a reef, a course of akin to planting every blade of grass in a garden individually.

Even fast-growing coral species add only a few inches a 12 months. And it isn’t attainable to easily scatter seeds.

A couple of hours later, at a website known as Dickie’s Reef, Simpson dives once more and makes use of bits of fishing line to tie clusters of staghorn coral onto rocky outcroppings — a short lived binding till the coral’s limestone skeleton grows and fixes itself onto the rock. The purpose is to jumpstart the pure progress of a coral reef. And up to now, it is working.

Nearly everybody in Jamaica is dependent upon the ocean, together with Simpson, who lives in a modest home he constructed himself close to the island’s northern coast. The energetic 68-year-old has reinvented himself a number of occasions, however at all times made a residing from the ocean.

As soon as a spear fisherman and later a scuba-diving teacher, Simpson began working as a “coral gardener” two years in the past — a part of grassroots efforts to deliver Jamaica’s coral reefs again from the brink.

Coral reefs are sometimes known as “rainforests of the ocean” for the astonishing range of life they shelter.

Simply 2 p.c of the ocean ground is crammed with coral, however the branching constructions — formed like every little thing from reindeer antlers to human brains — maintain 1 / 4 of all marine species. Clown fish, parrotfish, groupers and snappers lay eggs and conceal from predators within the reef’s nooks and crannies, and their presence attracts eels, sea snakes, octopuses and even sharks. In wholesome reefs, jellyfish and sea turtles are common guests.

With fish and coral, it is a codependent relationship — the fish rely on the reef construction to evade hazard and lay eggs, and so they additionally eat up the coral’s rivals.

Life on the ocean ground is sort of a slow-motion competitors for area, or an underwater recreation of musical chairs. Tropical fish and different marine animals, like black sea urchins, munch on fast-growing algae and seaweed that will in any other case outcompete the slow-growing coral for area. When too many fish disappear, the coral suffers — and vice-versa.

After a collection of pure and man-made disasters within the 1980s and 1990s, Jamaica misplaced 85 p.c of its once-bountiful coral reefs. In the meantime, fish catches declined to a sixth of what that they had been within the 1950s, pushing households that depend upon seafood nearer to poverty. Many scientists thought that the majority of Jamaica’s coral reef had been completely changed by seaweed, like jungle overtaking a ruined cathedral.

However in the present day, the corals and tropical fish are slowly reappearing, thanks partially to a collection of cautious interventions.

The fragile labor of the coral gardener is just one a part of restoring a reef — and for all its intricacy, it is really probably the most easy half. Convincing lifelong fishermen to curtail when and the place they fish and controlling the surging waste dumped into the ocean are trickier endeavors.

Nonetheless, slowly, the comeback effort is gaining momentum.

“The coral are coming again; the fish are coming again,” says Stuart Sandin, a marine biologist on the Scripps Establishment of Oceanography in La Jolla, California. “It is most likely a few of the most vibrant coral reefs we have seen in Jamaica because the 1970s.”

“Once you give nature an opportunity, she will restore herself,” he provides. “It isn’t too late.”

Sandin is learning the well being of coral reefs around the globe as a part of a analysis mission known as the “100 Island Problem.” His beginning assumption was that probably the most populated islands would have probably the most degraded habitats, however what he discovered as a substitute is that people may be both a blessing or a curse, relying on how they handle sources.

In Jamaica, greater than a dozen grassroots-run coral nurseries and fish sanctuaries have sprung up previously decade, supported by small grants from foundations, native companies reminiscent of lodges and scuba clinics, and the Jamaican authorities.

At White River Fish Sanctuary, which is barely about 2 years previous and the place Simpson works, the clearest proof of early success is the return of tropical fish that inhabit the reefs — in addition to hungry pelicans, skimming the floor of the water to feed on them.

Jamaica’s coral reefs had been as soon as among the many world’s most celebrated, with their golden branching constructions and resident bright-colored fish drawing the eye of vacationers from Christopher Columbus to Ian Fleming, who wrote most of his James Bond novels on the island nation’s northern coast within the 1950s and ’60s.

In 1965, the nation turned the location of the primary international analysis hub for coral reefs, the Discovery Bay Marine Lab, now related to the College of the West Indies. The pathbreaking marine biologist couple Thomas and Nora Goreau accomplished basic analysis right here, together with describing the symbiotic relationship between coral and algae and pioneering the usage of scuba gear for marine research.

The identical lab additionally offered a vantage level because the coral disappeared.

Peter Gayle has been a marine biologist at Discovery Bay since 1985. From the yard exterior his workplace, he factors towards the reef crest about 300 meters away — a skinny brown line splashed with white waves. “Earlier than 1980, Jamaica had wholesome coral,” he notes. Then a number of disasters struck.

The primary calamity was 1980’s Hurricane Allen, some of the highly effective cyclones in recorded historical past. “Its 40-foot waves crashed in opposition to the shore and mainly chewed up the reef,” Gayle says. Coral can develop again after pure disasters, however solely when given an opportunity to get well — which it by no means received.

That very same decade, a mysterious epidemic killed greater than 95% of the black sea urchins within the Caribbean, whereas overfishing ravaged fish populations. And surging waste from the island’s rising human inhabitants, which almost doubled between 1960 and 2010, launched chemical compounds and vitamins into the water that spur quicker algae progress. The consequence: Seaweed and algae took over.

“There was a tipping level within the 1980s, when it switched from being a coral-dominated system to being an algae-dominated system,” Gayle says. “Scientists name it a ‘part shift.'”

That appeared like the top of the story, till an unlikely alliance began to tip the ecosystem again within the different path — with assist from residents like Everton Simpson and his fellow fisherman Lipton Bailey.

The fishing group of White River revolves round a small boat-docking space a few quarter-mile from the place the river flows into the Caribbean Sea. One early morning, as purple daybreak mild filters into the sky, Simpson and Bailey step onto a 28-foot motorboat known as the Interceptor.

Each males have lived and fished their complete lives in the neighborhood. Just lately, they’ve come to imagine that they should defend the coral reefs that entice tropical fish, whereas setting limits on fishing to make sure the ocean is not emptied too shortly.

Within the White River space, the answer was to create a protected space — a “fish sanctuary” — for immature fish to develop and attain reproductive age earlier than they’re caught.

Two years in the past, the fishermen joined with native companies, together with resort homeowners, to kind a marine affiliation and negotiate the boundaries for a no-fishing zone stretching two miles alongside the coast. A easy line within the water is hardly a deterrent, nevertheless — to make the boundary significant, it have to be enforced. At present, the native fishermen, together with Simpson and Bailey, take turns patrolling the boundary within the Interceptor.

On this morning, the boys steer the boat simply exterior a row of orange buoys marked “No Fishing.” ”We’re searching for violators,” Bailey says, his eyes skilled on the rocky coast. “Generally you discover spearmen. They assume they’re good. We attempt to beat them at their recreation.”

Many of the older and extra established fishermen, who personal boats and set out strains and wire cages, have come to simply accept the no-fishing zone. In addition to, the chance of getting their gear confiscated is simply too nice. However not everyone seems to be on board. Some youthful males hunt with light-weight spearguns, swimming out to sea and firing at close-range. These males — a few of them poor and with few choices — are the most definitely trespassers.

The patrols carry no weapons, so they have to grasp the artwork of persuasion. “Allow them to perceive this — it isn’t a you factor or a me factor. This is not private,” Bailey says of previous encounters with violators.

These are generally dangerous efforts. Two years in the past, Jerlene Layne, a supervisor at close by Boscobel Fish Sanctuary, landed within the hospital with a bruised leg after being attacked by a person she had reprimanded for fishing illegally within the sanctuary. “He used a persist with hit my leg as a result of I used to be doing my job — telling him he can not fish within the protected space,” she says.

Layne believes her work could be safer with extra formal assist from the police, however she is not going to cease.

“Public mindsets can change,” she says. “If I again down on this, what sort of message does that ship? It’s important to stand for one thing.”

She has pressed costs in court docket in opposition to repeat trespassers, usually leading to a effective and gear confiscation.

One such violator is Damian Brown, 33, who lives in a coastal neighborhood known as Stewart City. Sitting exterior on a concrete staircase close to his modest residence, Brown says fishing is his solely possibility for work — and he believes the sanctuary boundaries lengthen too far.

However others who as soon as had been skeptical say they’ve come to see limits as an excellent factor.

Again on the White River docking space, Rick Walker, a 35-year-old spearfisherman, is cleansing his motorboat. He remembers the early opposition to the fish sanctuary, with many individuals saying, “‘No, they’re attempting to cease our livelihood.'”

Two years later, Walker, who isn’t concerned in operating the sanctuary however helps its boundary, says he can see the advantages. “It is simpler to catch snapper and barracuda,” he says. “At the very least my nice grandkids will get to see some fish.”

When Columbus landed in Jamaica, he sailed into Oracabessa Bay — in the present day a 20-minute drive from the mouth of the White River.

Oracabessa Bay Fish Sanctuary was the primary of the grassroots-led efforts to revive Jamaica’s coral reefs. Its sanctuary was legally integrated in 2010, and its strategy of enlisting native fishermen as patrols turned a mannequin for different areas.

“The fishermen are totally on board and comfortable — that is the excellence. That is why it is working,” sanctuary supervisor Inilek Wilmot says.

David Murray, head of the Oracabessa Fishers’ Affiliation, notes that Jamaica’s 60,000 fishermen function with out a security internet. “Fishing is like playing, it is a recreation. Generally you catch one thing, generally you do not,” he says.

When fish populations started to break down 20 years in the past, one thing needed to change.

Murray now works as a warden within the Oracabessa sanctuary, whereas persevering with to fish exterior its boundary. He additionally spends time explaining the idea to neighbors.

“It is folks work — it is a course of to get folks to agree on a sanctuary boundary,” he says. “It is a powerful job to inform a person who’s been fishing all his life that he cannot fish right here.”

However as soon as it turned clear {that a} no-fishing zone really helped close by fish populations rebound, it turned simpler to construct assist. The variety of fish within the sanctuary has doubled between 2011 and 2017, and the person fish have grown bigger — almost tripling in size on common — based on annual surveys by Jamaica’s Nationwide Atmosphere and Planning Company. And that enhances catches in surrounding areas.

After phrase received out about Oracabessa, different areas wished recommendation.

“We now have the info to point out success, however much more necessary than information is phrase of mouth,” says Wilmot, who oversaw coaching to assist begin the fish sanctuary at White River.

Belinda Morrow, a lifelong water-sports fanatic usually seen paddle-boarding along with her canine Shadow, runs the White River Marine Affiliation. She attends fishers’ conferences and raises small grants from the Jamaican authorities and different foundations to assist gear purchases and coral replanting campaigns.

“All of us depend upon the ocean,” Morrow says, sitting in a small workplace adorned with nautical maps within the iconic 70-year-old Jamaica Inn. “If we do not have an excellent wholesome reef and an excellent wholesome marine surroundings, we are going to lose an excessive amount of. An excessive amount of of the nation depends on the ocean.”

———

This Related Press collection was produced in partnership with the Howard Hughes Medical Institute’s Division of Science Schooling. The AP is solely answerable for all content material.

Heroic efforts to revive ecosystems and save species are being waged worldwide, geared toward reversing a few of humankind’s most harmful results on the planet. “What Can Be Saved?,” a weekly AP collection, chronicles the atypical folks and scientists combating for change in opposition to monumental odds _ and forging paths that others might observe.

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In this video I was adjusting DIC microscopy on a Tardigrade, a microscopic “wat…

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In this video I was adjusting DIC microscopy on a Tardigrade, a microscopic “water bear.” These creatures are tough, but nothing is immortal. The pressure from the slide preparation causes this microbial eukaryote to burst, similar to my previous ciliate video. Observing contents of microbes can be equally interesting, and a good reminder for the fragility of life. If anyone finds a single Tardigrade death sad, then consider what one can do to not pollute and destroy the environment… Sample from a freshwater Florida spring under 200x DIC microscopy. #tardigrade #waterbear #death #microbe #micro #sciart #algae #bear #pop #burst #oops #claws #microbiology #ecology #animal #wildlife #alien #microscopy #florida #science #foodchain

 

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Here is a single cell ciliate in the genus Frontonia. This microbe is full of i…

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Here is a single cell ciliate in the genus Frontonia. This microbe is full of items it has consumed, including algae and a large strand of Cyanobacteria. The cell is under polarized light and appears to glow. This microbe is half a millimeter in length. From a freshwater pond, 200x DIC. #ciliate #protist #protozoa #microbe #microbiology #algae #cyanobacteria #glow #ecology #species #foodchain #cellbiology #cell #biodiversity #pondlife #nature #life

 

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Tardigrades are robust, however clearly not immortal. They’re resilient, and ready …

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Tardigrades are robust, however clearly not immortal. They’re resilient, and capable of adapt, which is vital within the micro world. Right here a smaller Tardigrade (water bear) is feeding on a big useless one. They’ve piercing mouth elements, together with claws on their eight toes. The big quick oval is a ciliate within the genus Frontonia, a single cell. Collected off a microbial mat in a freshwater Florida spring at 4m depth. 200X DIC and 6x timelapse. #tardigrade #waterbear #feeding #microbe #ciliate #circleoflife #foodchain #pondlife #microbiology #science #mosspiglet #cyanobacteria #timelapse #video #animals #wildlife #nature #biodiversity #alien #algae #phd #micro

 

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This can be a beautiful thicc Tardigrade feeding in time lapse on Cyanobacteria which m…

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This can be a beautiful thicc Tardigrade feeding in time lapse on Cyanobacteria which make up a microbial mat. Video is sped up 6x, and 200x DIC is used. I collected this from a Florida spring at 3m depth. The time lapse reveals the wiggling of those cute eight legged creatures. #science #nature #tardigrade #microbe #cyanobacteria #algae #bluegreen #feeding #cute #florida #microbiology #ecology #waterbear #mosspiglet #ecosystem #animals #timelapse #foodchain #meals #microbial

 

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