Gaimardia trapesina (Lamarck 1819)

Body symmetry

• Namigai et al 2014: bilaterally symmetric

are eaten by

• Global Biotic Interactions: Anasterias rupicola (Verrill 1876)
• Global Biotic Interactions: Harpagifer georgianus Nybelin 1947 (South Georgia spiny plunderfish)
• Global Biotic Interactions: Paranotothenia magellanica (Forster 1801) (Maori cod)
• Global Biotic Interactions: Pachyptila desolata (Gmelin & JF 1789) (Antarctic Prion)
• Global Biotic Interactions: Pachyptila belcheri (Mathews 1912) (Narrow-billed prion)

are preyed upon by

• Global Biotic Interactions: Cosmasterias lurida (Philippi 1858) (Common Fjord Sea Star)
• Global Biotic Interactions: Harpagifer georgianus Nybelin 1947 (South Georgia spiny plunderfish)
• Global Biotic Interactions: Pachyptila belcheri (Mathews 1912) (Narrow-billed prion)
• Global Biotic Interactions: Asterina fimbriata Perrier 1875 (Little Pentagon Star)
• Global Biotic Interactions: Anasterias antarctica (Lütken 1857) (Cinderella Sea Star)

body length

• McClain Bivalve Sizes: 21 mm (max)
• Shelled animal body mass: 20.3 mm (adult, single measurement)
• Femorale: 20.3 mm (adult, single measurement)

body volume

• Shelled animal body mass: 1.21 cm^3 (adult, single measurement)
• Literature body sizes, bivalves: 5.11 cm^3 (average)

cellularity

• Cellularity and growth form: multicellular

geographic distribution

• TreatmentBank: Georgia
• TreatmentBank: Rio Grande Do Sul
• TreatmentBank: Falkland Islands
• TreatmentBank: Uruguay
• South Pacific Species List: South Pacific

habitat

• TreatmentBank: bay
• World Register of Marine Species: marine benthic

latitude

• OBIS environmental data records: -54.895 degrees (min)
• OBIS environmental data records: -54.017 degrees (max)
• OBIS environmental data records: -54.895 degrees (min)
• OBIS environmental data records: -34.63 degrees (max)

life span

• Moss et al 2016: 5 years (max)

longitude

• OBIS environmental data records: -65.4567 degrees (min)
• OBIS environmental data records: -61.8 degrees (max)
• OBIS environmental data records: -68.583 degrees (min)
• OBIS environmental data records: 37.94 degrees (max)

mineralized skeleton contains

• Mineralogy: aragonite

number of records in gbif

• GBIF data coverage: 347

number of records in iNat

• iNaturalist data coverage: 29

number of research grade records in iNat

• iNaturalist data coverage: 26

reproduction

• Fairbairn 2013: sexual reproduction

shell height, bivalve

• McClain Bivalve Sizes: 21 mm (max)

shell length, bivalve

• McClain Bivalve Sizes: 32 mm (max)

skeleton structure

• World Register of Marine Species: condensed
• World Register of Marine Species: exoskeleton

type specimen repository

• GBIF national node type records France: museum national d'histoire naturelle (mnhn)
• GBIF national node type records France: museum national d'histoire naturelle (mnhn)
• GBIF national node type records France: museum national d'histoire naturelle (mnhn)
• GBIF national node type records France: museum national d'histoire naturelle (mnhn)

water depth

• OBIS environmental data records: 10 m (min)
• OBIS environmental data records: 109 m (max)
• OBIS environmental data records: 10 m (min)
• OBIS environmental data records: 350 m (max)

water dissolved o2 concentration

• OBIS environmental data records: 7.066 mL/L (max)
• OBIS environmental data records: 4.943 mL/L (min)

water nitrate concentration

• OBIS environmental data records: 16.45 µmol/l (min)
• OBIS environmental data records: 37.922 µmol/l (max)

water o2 saturation

• OBIS environmental data records: 100.096 percent (max)
• OBIS environmental data records: 62.814 percent (min)

water phosphate concentration

• OBIS environmental data records: 1.38 µmol/l (min)
• OBIS environmental data records: 2.368 µmol/l (max)

water salinity

• OBIS environmental data records: 34.389 psu (max)
• OBIS environmental data records: 33.821 psu (min)

water silicate concentration

• OBIS environmental data records: 8.023 µmol/l (min)
• OBIS environmental data records: 72.734 µmol/l (max)

water temperature

• OBIS environmental data records: 5.904 degrees celsius (max)
• OBIS environmental data records: 1.361 degrees celsius (min)

wet body mass

• Shelled animal body mass: 2.12 g (adult, single measurement)
• Literature body sizes, bivalves: 8.83 g (average)