APHOTOMARINE

An educational resource dedicated mainly to the photography
and diversity of marine life that can be found in coastal waters
and intertidal areas of Great Britain and Ireland by David Fenwick.

A-P-H-O-T-O Wildlife Stock Image Library
Ascophyllum nodosum (Linnaeus) Le Jolis, 1863 - Knotted or Egg Wrack (Brown seaweed images)
Knotted Wrack or Egg Wrack
Ascophyllum nodosum
- on harbour wall 1

Knotted Wrack or Egg Wrack
Ascophyllum nodosum
- on harbour wall 2

Knotted Wrack or Egg Wrack
Ascophyllum nodosum
- on harbour wall 3

Knotted Wrack or Egg Wrack
Ascophyllum nodosum
- on harbour wall 4

Knotted Wrack or Egg Wrack
Ascophyllum nodosum
- on rocky middleshore 1

Knotted Wrack or Egg Wrack
Ascophyllum nodosum
- on rocky middleshore 2

Knotted Wrack or Egg Wrack
Ascophyllum nodosum
- fronds 1

Knotted Wrack or Egg Wrack
Ascophyllum nodosum
- with Vertebrata lanosa 1

Knotted Wrack or Egg Wrack
Ascophyllum nodosum
- frond close-up 1

Knotted Wrack or Egg Wrack
Ascophyllum nodosum
- with Lepas pectinata 1

A common seaweed, usually found across the middleshore on sheltered rocky coasts and in estuaries across the region. May also be found washed up on the strandline of beaches having drifted across the Atlantic on the Gulf Stream, these pieces may have stalked barnacles growing on them, barnacles such as Dosima fascicularis, the Buoy Barnacle; and Lepas pectinata. Here in the UK a hydroid, Dynamena pumila; and a red seaweed, Vertebrata lanosa synonym Polysiphonia lanosa may be see growing epithitically on this seaweed.

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Species photographed at many locations across the region; these include the Lynher Estuary, off Point Field, Churchtown Farm Reserve at Saltash; and at Marazion, near Penzance, Cornwall.

Scientific and European Names:
Ascophyllum nodosum, Knotted Wrack, Egg Wrack, Asco, Sea Whistle, Knotentang, Knotswier, Goemon noir, Alga nudosa.

APHOTOMARINE supports open source data recording and sharing for the benefit of wildlife, recorders, research, science and education. The project recommends the following websites and works with the following bodies and organisations.

Marine Biological Association MBA

The Marine Biological Association or MBA, based in Plymouth, is one of the world’s longest-running societies dedicated to promoting research into our oceans and the life they support. Since 1884 the MBA has been providing a unified, clear, independent voice on behalf of the marine biological community.It has a growing membership in over 40 countries.

NBN National Biodiversity Network

The National Biodiversity Network or NBN is a charity that supports open source data sharing and recording supporting conservation, science and education. "Why do recorders need open source?". Simply because it supports the core values of wildlife recording and the free use of records and data over a very wide network that includes partners like the Natural History Museum.

The taxonomy used here is based on that of the following database, which is also used by the MBA, NHM and the NBN.

World Register of Marine Species or WoRMS

The World Register of Marine Species or WoRMS.

AlgaeBase

AlgaeBase is a database of information on algae that includes terrestrial, marine and freshwater organisms.

Ascophyllum nodosum Knotted Egg Wrack Polysiphonia lanosa Many Tubed Gable Weed Brown Seaweed Images
The main objective of this website is in furthering environmental awareness and education through the medium of photography. To increase awareness and access to the wildlife of the region and help
people find and identify it. Sometimes the difference between species is obvious but many species can only be determined by observing microscopic characteristics that are specific to any one species.