Category: Coast
Turnstone
Also called the Ruddy Turnstone (Arenaria interpres), this was another first for me. There were many of these little birds on the seashore bulldozing the seaweed out of their way with their heads in search of invertebrates hiding underneath it.
Feel free to click the images to enlarge and click again to get even closer …
East Cowes, Isle of Wight. September 2019 © Pete Hillman.
When The Tide Goes Out
When the tide goes out to reveal shallow pools and masses of clumped seaweed it is time for the waders to come and feed.
This Little Egret (Egretta garzetta) does an odd little dance to agitate the water to stir up small fish and invertebrates on which it feeds.
Feel free to click the images to enlarge and click again to get even closer …
East Cowes, Isle of Wight. September 2019 © Pete Hillman.
Give It Some Mussel
Tide Play
Watery Embrace
All The Greys
Sailing Amidst The Blue
Coming In To Land
Spot The Little Fishy
I believe these are Shanny (Lipophrys pholis), also called Blenny. As the tide pulled out it left these crystal clear pools of water and in them they teemed with these young fish which moved nimbly through the shallow water. They are so well adapted to their environment you would hardly notice them until they moved.
Click once to expand view, click again to get that little bit closer
Shanklin Beach, Isle of White, England, August 2018 © Pete Hillman.
Underwater
I love how the sunlight sparkles and shimmers within the rippling movement of the waters on the coast. These are abstract worlds which I would like to glimpse more often than I do, full of the richness of life and wonder. These images feature what I believe is a seaweed called Gutweed (Ulva intestinalis).
Click once to expand view, click again to get that little bit closer
Shanklin Beach, Isle of White, England, August 2018 © Pete Hillman.
Underwater
Discoveries In The Rockpool #2
Discoveries In The Rockpool
Where The Waves Take Me
Washed Up
Spiral Wrack Fucus spiralis
Sea Holly
Eryngium maritimum
A very distinctive plant with blueish-green or greyish green waxy leaves, with sharp-toothed spines. It produces tiny blue flowers in a large dome.
It flowers June to September. Found along sandy coastlines, mainly on sand dunes. Common and widespread in England, Wales and Ireland, and absent from north and east Scotland.
June 2012, Llandudno, Wales. Nikon Coolpix P500. Pete Hillman 2012.
Keelworm
Pomatoceros triqueter
The tube in which the worm hides at low tide is white and smooth, irregularly curved, hard and calcareous with a single prominent ridge along its back. It looks triangular in cross-section. The worm itself is small with varied colouration, and has a crown of feeding tentacles. Similar to Pomatoceros lamarcki which has two ridges each side as well as a centre ridge. Tube width 3 to 5mm. Worm length up to 25mm.
Found encrusting and scarring rocks and shells on the middle to lower shore. Discovered on most types of coastline. Common and widespread.
Photograph taken August 2015, Meadfoot Beach, Torquay, Devon. Camera Nikon D3200, with Sigma 105mm macro lens. © Pete Hillman 2015.
Sitting Pretty
Two Gapers
I have shown the two gaper shells on one post to illustrate how different they are, beginning with the Sand Gaper above.
Sand Gaper (Mya arenaria)
A large and robust bivalve, the shell is oval in shape, the anterior end rounded, the posterior end more pointed. It has concentric ridges and is off-white, grey or light brown in colour. Shell length 15cm.
The Sand Gaper burrows to a depth of 50cm into mud and sandflats, where it filters organic matter from sea water. It is often found in estuaries, and is widespread and locally common.
Blunt Gaper (Mya truncata)
A thick-shelled, robust bivalve, rectangular in shape with a truncate posterior margin. It also has numerous concentric lines and is off-white in colour. Shell length up to 70mm.
It is commonly found in estuaries where it buries itself to a fair depth. Widespread and locally common, especially on the east coast of Britain.
Photographs taken April 2013, Llandudno, Wales. Camera Nikon Coolpix P500. © Pete Hillman 2013.
Baltic Tellin
Macoma balthica
The shell is a rounded-oval, although the posterior more angled. The colour is variable from pink to purple, yellow and white. Width 25mm.
It is found on the lower shore in muddy sand, and also in estuaries. Common and widespread.
Photographs taken June 2012, Llandudno, Wales. Camera Nikon Coolpix P500. © Pete Hillman 2012.
Peppery Furrow
Scrobicularia plana
The shell has numerous fine, concentric rings and grooves. It is dirty white, yellowish or greyish in colour, and is flat, thin and delicate in form. Length 6.5cm.
It is found in sheltered, brackish habitats, like estuaries and muddy shores where it burrows up to 20cm, leaving behind a star-shaped tell-tale impression on the surface. It is a deposit-feeder, and when the inhalant siphon is extended it is often eaten by crabs, fish and wading birds, but it is regrown fairly quickly. Common and widespread all around the UK.
Photographs of Peppery Furrow (Scrobicularia plana), taken August 2011, Saundersfoot, Wales. © Pete Hillman 2011. Camera used Panasonic Lumix DMC-FZ38.
Striped Venus Clam
Chamelea gallina
The colour of the shell is pale cream or yellowish, usually marked with three prominent radiating brown bands. It is fairly thick and has fine concentric ridges. Length 4cm.
It is found buried in the lower shore to sublittoral, and it can live up to 10 years. Common and widespread on all coasts, except the south-east coast of England.
Photographs of Striped Venus Clam (Chamelea gallina), taken August 2011, Saundersfoot, Wales. © Pete Hillman 2011. Camera used Panasonic Lumix DMC-FZ38.
Banded Wedge Shell
Donax vittatus
This mollusc has a shiny white to yellow, purple or greyish-brown slender wedge-shaped shell. Growth stages show as pale bands. The inner surfaces are tinted white, purple, yellow or orange. Length up to 38mm.
Found on the middle to lower shore where it burrows into coarse sand and lives just below the surface. The Banded Wedge Shell is a filter feeder, and when the tide is in it extracts food particles from the water via a syphon. Common and widespread on all British and Irish coasts, but less common further north on Scottish coastlines.
Photographs of Banded Wedge Shell (Donax vittatus), taken August 2011, Saundersfoot, Wales. © Pete Hillman 2011. Camera used Panasonic Lumix DMC-FZ38.
Necklace Shell
Polinices catenus
The Necklace Shell has a buff to pale yellow shell with a spiral row of brownish marks near its upper edge. Similar to Alder’s Necklace Shell which is smaller and darker. Shell height up to 3cm.
It is found buried in the lower shore, in sheltered to moderately exposed sand. It feeds on small bivalves by drilling a round hole through its shell. Common and widespread along all British coasts.
Photographs of Necklace Shell (Polinices catenus), taken August 2011, Saundersfoot, Wales. © Pete Hillman 2011. Camera used Panasonic Lumix DMC-FZ38.
Coral Weed
Corallina officinalis
This seaweed has a feathery appearance with its regular, opposing branched pattern. It varies in colour due to age and lighting conditions. The deeper it is it grows dark pink. It has a pink, disc-shaped encrusting holdfast which helps it anchor itself to rocks, shells or other larger seaweeds. It can grow up to 12cm in height.
It is typically found lining the edges of mid-shore rock pools. It is common and widespread.
Photographs of Coral Weed (Corallina officinalis), taken August 2015, in rock pool Meadfoot Beach, Torquay, Devon. © Pete Hillman 2015. Camera used Nikon D3200, with Sigma 105mm macro lens.
Bean Solen
Pharus legumen
The shell is elongate, thin and brittle. There are numerous fine concentric lines, with a group of fine radiating striae. It is white or light brown, light olive or yellow. The hinge and ligament is positioned about a third of the way along the length of the mollusc. Length up to 130mm.
It burrows deeply in fine to medium course sands in the lower shore and shallow sublittoral. Found on the south-west coasts of England, Wales and Ireland.
Photographs of Bean Solen (Pharus legumen), taken August 2011, Saundersfoot, Wales. © Pete Hillman 2011. Camera used Panasonic Lumix DMC-FZ38.
Common Limpet
Patella vulgata
Have you ever wondered what the underside of a limpet looked like? Note the large muscular foot, the relatively small mouth above, and the tentacles either side.
The Common Limpet has an ashen-grey or greenish-blue shell, sometimes with a yellow tint, and with radiating ridges. It is conical with an almost central apex. The shell is often covered in barnacles. The sole of the foot is yellowish or orange-brownish with a green tinge. Shell length 6cm. They are fairly long-lived, up to 15 years.
It inhabits the intertidal zone, clinging tightly to rocks along the shore or in rock pools, and with its thick shell it is able to withstand the pounding ocean waves, exposure to drying out, and attacks from birds or fish. It grazes on algae growing on the rocks beneath the water. It is not ‘stuck’ in one position as it may always appear to be, but follows a mucous trail as it feeds and finds it way back. Scarring maybe evident on the substrate where it has ground it down to get the perfect fit. Common and widespread around the British coasts.
Photographs of Common Limpet (Patella vulgata), taken August 2011, Saundersfoot, Wales. © Pete Hillman 2011. Camera used Panasonic Lumix DMC-FZ38.
Common Mussel
Mytilus edulis
Also called the ‘Blue Mussel’, the shells are dark brown, blue-black, or purple in colour. Shell length up to 10cm.
It is found middle to lower shore, and attaches itself to rocks via byssus threads. It will also find crevices in the rocks, or attach themselves to manmade structures like piers and harbour walls. They can form large beds up to 6 layers thick and covering many square kilometres. Mussels are filter feeders of plankton, pumping large amounts of water through their bodies to extract the food.
Very common and widespread all around the British coast.
This is an edible marine mussel which has been harvested by humans for centuries. They are a rich source of protein, and are very important to the marine life ecosystem.
Photographs of Common Mussel (Mytilus edulis), taken August 2011, Saundersfoot, Wales. © Pete Hillman 2011. Camera used Panasonic Lumix DMC-FZ38.
Prasiola stipitata
This is a small, dark green lettuce-like algae when wet, which forms flaky coatings over rocks and boulders. Length 1cm.
It grows on rocks and stones in the splash zone, mostly frequented by seabirds which drop their faeces from which it gets its nitrates to flourish. A common and widespread species, but mainly seen in spring and early summer.
Photographs of Prasiola stipitata taken April 2013, Llandudno, Wales. © Pete Hillman 2013. Camera used Nikon Coolpix P500.
Purple Laver
Porphyra umbilicalis
Greenish in colour when young, but becoming purple-red as it matures, and is very resistant to drying out and the action of the waves. It forms thin, delicate sheets which cling to rocks and has a polythene-like texture. Width 20cm.
Found attached to rocks in sandy habitats. Abundant and widespread on rocky shores throughout.
Purple Laver is used to make laverbread in Wales, which is a traditional Welsh recipe.
Photographs of Purple Laver (Porphyra umbilicalis) taken April 2013, Llandudno, Wales. © Pete Hillman 2013. Camera used Nikon Coolpix P500.
Sea Belt
Saccharina latissima
Also called ‘Sugar Kelp’ or ‘Poor Man’s Weatherglass’, this is a long, belt-like brown to olive coloured seaweed with wavy edges and a crinkled centre. Length 4cm.
It grows in deep pools and around the low tide mark, usually on sheltered rocky shores attached to rocks with a small branching holdfast. A common and widespread species.
Photographs of Sea Belt (Saccharina latissima), taken August 2015, in rock pool Meadfoot Beach, Torquay, Devon. © Pete Hillman 2015. Camera used Nikon D3200, with Sigma 105mm macro lens.
Egg Wrack Wool
Polysiphonia lanosa
A brownish-red seaweed which is tufted and made up of branching filaments which gives it a wool-like consistancy. Length 70cm.
Found middle to low shore, and grows mainly on Egg Wrack (Ascophyllum nodosum) for physical support, known as an epiphyte. It makes use of the hosts buoyancy at high tide so it will gain more sunlight. Common and widespread throughout the British coastline.
Photographs of Egg Wrack Wool (Polysiphonia lanosa), taken August 2015, in rock pool Meadfoot Beach, Torquay, Devon. © Pete Hillman 2015. Camera used Nikon D3200, with Sigma 105mm macro lens.
Toothed Wrack
Fucus serratus
Also called “Saw Wrack’ or ‘Serrated Wrack’, this is an olive to golden brown seaweed, flattened with a prominant midrib and saw-toothed fronds. Length 60cm. Frond width 2cm.
Found on the lower zone, it latches onto rocks on more sheltered shores. A common and widespread species.
Photographs of Toothed Wrack (Fucus serratus), taken August 2015, in rock pool Meadfoot Beach, Torquay, Devon. © Pete Hillman 2015. Camera used Nikon D3200, with Sigma 105mm macro lens.
Spiral Wrack
Fucus spiralis
Also called ‘Flat Wrack’, it is a dark olive-brown or greenish seaweed with a prominent midrib with no gas bladders. There are often pairs of swollen reproductive bodies on the tips of the frond branches. The fronds have a tendency to twist. Length 15 to 20cm.
Occurring on the upper shore, preferring sheltered to moderately exposed shores, where they cling to the hard surfaces. It also extends well into estuaries. It reproduces from July to September. A common and widespread species.
Photograph of Spiral Wrack (Fucus spiralis) taken June 2012, Llandudno, Wales. © Pete Hillman 2012. Camera used Nikon Coolpix P500.
Channelled Wrack
Pelvetia canaliculata
This seaweed is dark greenish-brown in colour when dry and yellow when wet. It has no gas bladders, the fronds have no midribs, and they are curled along the length forming a channel. Height 15cm.
Found on the upper shore attached to rocks. Reproduces from August to September. It is very resiliant to desiccation, and can survive for up to eight days without water. A common and widespread species.
Photograph of Channelled Wrack (Pelvetia canaliculata) taken June 2012, Llandudno, Wales. © Pete Hillman 2012. Camera used Nikon Coolpix P500.
Egg Wrack
Ascophyllum nodosum
Also called ‘Knotted Wrack’, this is a yellowish to olive-green seaweed, which has long, narrow chain-like fronds with gas-filled bladders. This is a slow-growing seaweed which has no mid-rib. Height 0.5 to 2m.
Found on rocky shores, often on the mid-shore, preferring sheltered conditions, extending into estuaries and usually attached to rocks. It reproduces April to June. Egg Wrack Wool (Polysiphonia lanosa) is commonly found attached to it in clumps. A common and widespread species.
Photograph of Egg Wrack (Ascophyllum nodosum) taken June 2012, Llandudno, Wales. © Pete Hillman 2012. Camera used Nikon Coolpix P500.
Spoons
Estuarine Sand-shrimp (Gammarus duebeni)
The adult is olive-brown with a laterally flattened body with a curved dorsal outline. It has black kidney-shaped eyes, dorsal clusters of spines on the last 3 segments of its body, and 2 pairs of long antennae. When out of water it jerks along on its side. Length 16 to 22mm.
It feeds on dead plant and animal material, and hunts small invertebrates.
Found in brackish water and shores with freshwater run-off, estuaries, rocky shore pools, even lakes and rivers. It can tolarate low salinity. Locally common.
Photograph of Estuarine Sand-shrimp (Gammarus duebeni) taken April 2013, West Shore, Llandudno, Wales. © Pete Hillman 2013. Camera used Nikon Coolpix P500.
Common Prawn
Palaemon serratus
The Common Prawn has large eyes and a translucent body with yellow, brown or reddish stripes. It has an elongate body with a fan-shaped telson (last segment, or appendage of the last segment of the abdomen). It has a large upturned rostrum with 6-7 dorsal teeth and 4-5 ventral teeth. The first two pairs of walking legs bear claws, and have red, blue and yellowish banding. It can move very quickly, and is a very inquisitive creature. Length up to 11cm.
It is a ominvore and it will eat virtually anything from dead animal life, to hunting other invertebrates, and to consuming plant material.
Found on the upper to lower shore, in rockpools, amongst seaweeds and under rocks and boulders. Our commonest prawn, it is widespread throughout. Prawns are a valuable food source, and are of extreme commercial interest.
Photograph of Common Prawn (Palaemon serratus), taken August 2015, in rock pool Meadfoot Beach, Torquay, Devon. © Pete Hillman 2015. Camera used Nikon D3200, with Sigma 105mm macro lens.