North American fish in the Netherlands


This video from the USA about Atlantic croakers says about itself:

River fish – Baby Croakers

10 August 2014

Croakers — hundreds of them — are everywhere. They are cute and unfortunately for them, taste good. We let them go.

Translated from Ecomare museum in the Netherlands:

A fish that looks like an Eurasian ruffe and makes a croaking sound can really only be one species; an Atlantic croaker. These fish normally live along the Atlantic coast of North America. Every now and then one is caught in the Netherlands. Until now, they were known from the North Sea and the Marsdiep. On September 9 Jan van Triest of the fishing boat HK17 caught one in the Markermeer lake, near Lelystad. This is the first catch from really fresh water.

Baby nursehound shark born


Baby nursehound shark

This is a photo of a baby nursehound shark; hatched recently from an egg in the aquarium of Ecomare museum on Texel island in the Netherlands (with a stickleback in the background of the photo).

Carp, underwater video


Diver John de Jong made this video about carp in the Netherlands.

Carboniferous fossil discoveries in England


This video is called The Carboniferous Period.

From Wildlife Extra:

Yorkshire‘s hidden fossil haven reveals an exotic past

A derelict mining tip in Doncaster has given up its 310-million-year-old secrets after a host of new fossils – including some fossilised plants and creatures that may even be new to science – were found. One of the most exciting finds was that of a fossilised shark egg case, hinting at Yorkshire’s more exotic history.

Also among the fossils were some horseshoe crabs and previously unrecorded seed pods, all of which were found in preserved rocks that formed within the coal and shale deposits in what is one of the few fossil locations of its kind left in the UK.

The tip, located in Edlington, southwest of Doncaster, has been identified as being the only tip in the borough where fossils could still potentially be collected. All others in the area have been landscaped, or turned into parks, leaving any fossils that may be lying beneath inaccessible.

Palaeontologist Dean Lomax, a visiting scientist at the University of Manchester’s School of Earth, Atmospheric and Environmental Sciences, described what the fossils indicate Yorkshire might have been like hundreds of millions of years ago: “The fossils unlock a window into a long distant past, buried deep beneath residents’ feet. They are proof that parts of Yorkshire were once a tropical water-logged forest, teeming with life that may have looked something similar to today’s Amazon delta, a mix of dense forest, lakes, swamps and lagoons.

“The shark egg case is particularly rare and significant, because it’s soft bodied and an unusual object to find fossilised. We hope that future organised collecting of the site may reveal further rare discoveries, such as dragonflies, beetles, spiders and further evidence of vertebrates. And who knows, maybe we will even find the actual shark.”

It is hoped that further fossil specimens unearthed at the site will continue to be found. Speaking from Doncaster Heritage Services, Peter Robinson said: “We hope this important discovery will encourage ex-miners from the borough to bring forward and donate fossil specimens from the now defunct collieries, which were collected whilst extracting coal from the pit face. We have heard many stories of some of the wonderful fossils that have been found.”

The fossils are being safely stored at Doncaster Museum and have been integrated into the museum’s fossil collection.

Baby clownfish swim up to 400km to find a home


This video says about itself:

Clownfish aka anemonefish e.g. Nemo (Finding Nemo film) fish / fishes Amphiprioninae Pomacentridae

27 March 2014

The most famous clownfish in popular culture is Nemo the main character in the the 2003 animated film Finding Nemo. Nemo’s species is A. ocellaris. Clownfish and sea anemones have a symbiotic, mutualistic relationship, wherein each benefits the other.

Taxonomy – Genus Amphiprion:

Amphiprion akallopisos — Skunk clownfish
Amphiprion akindynos — Barrier Reef Anemonefish
Amphiprion allardi — Twobar anemonefish
Amphiprion barberi
Amphiprion bicinctus — Twoband anemonefish
Amphiprion chagosensis — Chagos anemonefish
Amphiprion chrysogaster — Mauritian anemonefish
Amphiprion chrysopterus — Orange-fin anemonefish
Amphiprion clarkii — Yellowtail clownfish
Amphiprion ephippium — Saddle anemonefish
Amphiprion frenatus — Tomato clownfish
Amphiprion fuscocaudatus — Seychelles anemonefish
Amphiprion latezonatus — Wide-band anemonefish
Amphiprion latifasciatus — Madagascar anemonefish
Amphiprion leucokranos — Whitebonnet anemonefish
Amphiprion mccullochi — Whitesnout anemonefish
Amphiprion melanopus — Fire clownfish
Amphiprion nigripes — Maldive anemonefish
Amphiprion ocellaris — Clown anemonefish
Amphiprion omanensis — Oman anemonefish
Amphiprion pacificus — Pacific anemonefish
Amphiprion percula — Orange clownfish
Amphiprion perideraion — Pink skunk clownfish
Amphiprion polymnus — Saddleback clownfish
Amphiprion rubacinctus — Red anemonefish
Amphiprion sandaracinos — Yellow clownfish
Amphiprion sebae — Sebae anemonefish
Amphiprion thiellei — Thielle’s anemonefish
Amphiprion tricinctus — Three-band anemonefish

Genus Premnas:
Premnas biaculeatus — Maroon clownfish

From daily The Guardian in Britain:

Young ‘Nemo’ clownfish roam further than thought, study shows

Australian and British scientists reveal why it was so hard to find Nemo – baby clownfish can swim up to 400km to find a home

Thursday 18 September 2014 02.10 BST

Scientists have revealed why it may be so difficult to find Nemo – baby clownfish can swim up to 400km in search of a new home.

A study, co-authored by James Cook University (JCU) researchers, shows the larvae cross large tracts of ocean to find new coral to settle on, making them better able to cope with environmental change.

“Knowing how far larvae disperse helps us understand how fish populations can adapt,” said Hugo Harrison from JCU’s centre of excellence for coral reef studies. “The further they can swim, the better they can cope.”

He said the results of the study, released in September, offer insight into the long distances travelled by baby clownfish, which feature in the animated film Finding Nemo.

“In the past we haven’t known where they go, but now we’ve been given a rare glimpse into how far they can swim, crossing large tracts of ocean to find new homes,” Harrison said.

He said the larvae moved about but fully grown clownfish spent their entire adult lives under the protection of one anemone.

As part of the international study, researchers collected 400 tissue samples from the only two known populations of Omani clownfish found on two reefs off southern Oman.

By analysing DNA fingerprinting – which reveals which of the two reefs the fish originated from – they found larvae were regularly travelling the 400km distance between the reefs.

Study co-author Stephen Simpson from the University of Exeter in England said it was the longest distance scientists had been able to track the dispersal of any coral reef fish.

“The findings change our understanding of marine populations,” he said. “They’re not small and separate as we often assume, rather this research shows they’re often vast and interconnected.”

The study was published in the scientific journal PLoS ONE.

North Sea coral discovery


This video from Britain says about itself:

26 May 2014

Join us on a simulated journey through the undersea landscapes of the south west of England from Ilfracombe to delicate pink sea fans in Lyme Bay via Chesil Beach and Berry Head. Common cuttlefish, hermit crab, bootlace seaweed and long snouted sea horse can be found here. Watch plaice send a hermit crab packing before approaching The Lizard’s thick carpets of jewel anenomes, dead man’s fingers and Devonshire cup coral. As we reach the Atlantic we come across sun fish, lion’s mane jellyfish, basking sharks and bottle-nosed dolphins before surfacing at Ilfracombe in Devon. Grey seals swim along corkwing wrasse, ballan wrasse and swimming crabs all searching for food amongst sponges.

Translated from Ecomare museum on Texel island in the Netherlands, 16 September 2014:

During a 10-day diving expedition in the North Sea there were a number of discoveries in ancient sunken ships. The rare polychaete worm Sabellaria [spinulosa] was found for example. But the most remarkable find was a piece of Devonshire cup-coral. Although this species lives occasionally near the English east coast, it was the first time that hard coral was found in the middle of the North Sea.