Assessment of Zooplankton in the area of Prestige oil tanker accident

Study Extent

The current study was based on samples conducted aboard the NRP "Almeida Carvalho" during cruise CECIR XIV from the 3rd to the 9th of May 1988 in the coastal area between Porto and Figueira da Foz.

Sampling

Zooplankton was sampled in four radials, with three coverings in radial 1 with a two-day interval and just one covering in radials 2, 3, and 4.

Quality Control

The samples were preserved in borax-buffered 5% formalin (pH 8.5 - 9). The biovolume of the samples was calculated using the displaced volume method, with the largest organisms (>1cm) removed beforehand. The biomass of zooplankton was measured in m1/m3. The zooplankton were identified and counted using stereomicroscopes in counting chambers (with grid of 50 squares with about 1 cm on a side).

Method steps

1. The samples were collected using a WP2 plankton net. The trawls were conducted in a vertical direction at a speed of 1 m/s, stratified between the depth levels of 0-20 m, 20-60 m, and 60-150 m, resulting in a total of 99 zooplankton harvests.

Zooplankton

1. Acantharia
   rank: class
2. Asteroidea
   rank: class
3. Bivalvia
   rank: class
4. Crustacea
   rank: class
5. Echinoidea
   rank: class
6. Enteropneusta
   rank: class
7. Gastropoda
   rank: class
8. Hydrozoa
   rank: class
9. Ophiuroidea
   rank: class
10. Ostracoda
    rank: class
11. Polychaeta
    rank: class
12. Aetideidae
    rank: family
13. Agalmatidae
    rank: family
14. Crangonidae
    rank: family
15. Fritillariidae
    rank: family
16. Galatheidae
    rank: family
17. Leucosiidae
    rank: family
18. Mysidae
    rank: family
19. Oikopleuridae
    rank: family
20. Oithonidae
    rank: family
21. Oncaeidae
    rank: family
22. Paguridae
    rank: family
23. Penaeidae
    rank: family
24. Phyllodocidae
    rank: family
25. Processidae
    rank: family
26. Scolecitrichidae
    rank: family
27. Spionidae
    rank: family
28. Stephidae
    rank: family
29. Tomopteridae
    rank: family
30. Acartia
    rank: genus
31. Calocalanus
    rank: genus
32. Corycaeus
    rank: genus
33. Diaixis
    rank: genus
34. Ebalia
    rank: genus
35. Eucalanus
    rank: genus
36. Euchaeta
    rank: genus
37. Evadne
    rank: genus
38. Fritillaria
    rank: genus
39. Gastrosaccus
    rank: genus
40. Leptomysis
    rank: genus
41. Lophogaster
    rank: genus
42. Metridia
    rank: genus
43. Oikopleura
    rank: genus
44. Oithona
    rank: genus
45. Oncaea
    rank: genus
46. Pisidia
    rank: genus
47. Pleuromamma
    rank: genus
48. Podon
    rank: genus
49. Rhincalanus
    rank: genus
50. Sapphirina
    rank: genus
51. Temora
    rank: genus
52. Tomopteris
    rank: genus
53. Tubulipora
    rank: genus
54. Undeuchaeta
    rank: genus
55. Brachyura
    rank: infraorder
56. Caridea
    rank: infraorder
57. Amphipoda
    rank: order
58. Calanoida
    rank: order
59. Cumacea
    rank: order
60. Decapoda
    rank: order
61. Doliolida
    rank: order
62. Euphausiacea
    rank: order
63. Harpacticoida
    rank: order
64. Isopoda
    rank: order
65. Mysida
    rank: order
66. Pteropoda
    rank: order
67. Siphonophorae
    rank: order
68. Annelida
    rank: phylum
69. Bryozoa
    rank: phylum
70. Cnidaria
    rank: phylum
71. Ctenophora
    rank: phylum
72. Echinodermata
    rank: phylum
73. Foraminifera
    rank: phylum
74. Phoronida
    rank: phylum
75. Aetideus armatus
    rank: species
76. Anchialina agilis
    rank: species
77. Bassia bassensis
    rank: species
78. Calanoides carinatus
    rank: species
79. Calanus helgolandicus
    rank: species
80. Candacia armata
    rank: species
81. Candacia bipinnata
    rank: species
82. Candacia varicans
    rank: species
83. Centropages chierchiae
    rank: species
84. Chelophyes appendiculata
    rank: species
85. Euterpina acutifrons
    rank: species
86. Heterorhabdus papilliger
    rank: species
87. Isias clavipes
    rank: species
88. Lanice conchilega
    rank: species
89. Mesocalanus tenuicornis
    rank: species
90. Microsetella norvegica
    rank: species
91. Muggiaea atlantica
    rank: species
92. Muggiaea kochii
    rank: species
93. Nannocalanus minor
    rank: species
94. Neocalanus gracilis
    rank: species
95. Nyctiphanes couchii
    rank: species
96. Paraeuchaeta hebes
    rank: species
97. Parasagitta friderici
    rank: species
98. Penilia avirostris
    rank: species
99. Pleuromamma xiphias
    rank: species
100. Salpa fusiformis
     rank: species
101. Temora longicornis
     rank: species
102. Temora stylifera
     rank: species
103. Thalia democratica
     rank: species
104. Undeuchaeta plumosa
     rank: species
105. Cirripedia
     rank: subclass
106. Copepoda
     rank: subclass
107. Hydroidolina
     rank: subclass
108. Diplostraca
     rank: superorder
109. Physonectae
     rank: superorder
110. Metridia lucens lucens
     rank: subspecies
111. Pleuromamma abdominalis abdominalis
     rank: subspecies
112. Pleuromamma gracilis gracilis
     rank: subspecies

Area off Porto-Figueira da Foz