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
Pisa armata (Latreille, 1803) - Gibbs' spider crab (Crustacean images)
Gibbs' spider crab
Pisa armata
- dorsal view dead crab 1

Gibbs' spider crab
Pisa armata
- dorsal view carapace 1

Gibbs' spider crab
Pisa armata
- front view carapace 1

Gibbs' spider crab
Pisa armata
- ventral view dead crab 1

Gibbs' spider crab
Pisa armata
- claw / cheliped 1

Gibbs' spider crab
Pisa armata
- claw / cheliped 2

Gibbs' spider crab
Pisa armata
- dactyl of fifth pereopod 1

Gibbs' spider crab
Pisa armata
- eye 1

Gibbs' spider crab
Pisa armata
- with 1.0mm division rule 1

Gibbs' spider crab
Pisa armata
- with 1.0mm division rule 2

The specimen here was found by Tracey Williams of Facebook's Newquay Beachcombing and Lost at Sea Group. It was found attached to Pink sea fan which was entangled in a mass of fishing gear which included, finely shreaded polypropylene and nylon line. The specimen was found at Porth Beach, near Newquay, Cornwall, 19.12.16.

Specimen cleaned and photographed on 04.01.17.

To add to this, bags full of pieces of Pink sea fans are being collected along the north Cornwall coast, and most are entangled in fishing debris. It is not known how and where the sea fans are becoming entangled, but the amount of Sea fans coming ashore is alarming, especially given their protection and slow rate of growth.

Please note, Spider crabs can be quite tricky to identify with any certainty because of a covering of algae. This means verification from images may be impossible. It may be necessary to remove some of the algae with fine tweezers in order to identify weed covered specimens using a stereomicroscope and key. It is too easy to assume specimens are the common Macropodia rostrata, when they may not be, and detailed examination is important if under-recorded species are to be found and identified.

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.

Pisa armata Gibbs spider crab Crustacean 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.