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Table 3c. Queen conch observations on Serranilla.

Site Number

40 21 41 19 62 61 New site New site New site 3 2 64 8 7 63 6 5 27 28 65 4  

new site

mean lip (mm)

# juvenile

22.80 21.50 0.00 0.00 22.55 4.00 22.00 9.00 23.20 20.00 0.00 0.00

0 0 1 0 0 0

3 100.00% 0 0.00% 1 50.00% 1 100.00% 1 100.00% 0 0.00%

0.00

0

0

2

1 27.00 16.00

0

1 100.00%

4 3 1 1 1 4 2 4 1 3 1 3 2

0 2 2 5 1 0 0 0 1 0 7 0 2

0 1 0 0 0 0 0 0 0 0 5 0 0

0 1 2 5 1 0 0 0 1 0 2 0 2

# of transects

# of empty

# of snails

QC44 QC45 QC46 QC47 QC48 QC49

2 3 3 4 2 4

1 3 2 3 1 4

3 0 2 1 1 0

QC50

4

4

0

QC51

3

QC52 QC53 QC54 QC55 QC56 QC57 QC58 QC59 QC60 QC61 QC62 QC63 QC64

4 4 3 3 2 4 2 4 2 3 3 3 4

mean size (cm)

0.00

0.00 21.75 25.15 26.40 27.00 0.00 0.00 0.00 26.10 0.00 21.70 0.00 24.80

0.00 14.00 18.50 10.60 4.00 0.00 0.00 0.00 10.00 0.00 4.50 0.00 8.00

# adults

% adults

0.00%

0.00% 50.00% 100.00% 100.00% 100.00% 0.00% 0.00% 0.00% 100.00% 0.00% 28.57% 0.00% 100.00%

Cittarium pica (West Indian top shell or magpie shell) Cittarium pica, or wilks as known in the Archipelago of San Andres Providencia and Santa Catalina, is collected on a small scale on the rocky coastline for human consumption (food). This mollusk is one of the most conspicuous herbivore-detritivores and one of the largest consumers of biomass of algae in the rocky shoreline. It serves as food for other gastropods and octopi, and its shell is used by several species of hermit crabs. It is the second most common mollusk fishery resource after Strombus gigas (queen conch). Its population has been affected in different areas of the Caribbean by overharvesting, and has been included in red lists of marine invertebrates in some countries. In Serranilla, a rocky outcrop area was searched, and only 3 individuals of medium size were identified.

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Profile for Khaled bin Sultan Living Oceans Foundation

Global Reef Expedition Final Report: Colombia  

In April of 2012, scientists on the Global Reef Expedition conducted habitat mapping and coral reef assessments in the San Andres Archipelag...

Global Reef Expedition Final Report: Colombia  

In April of 2012, scientists on the Global Reef Expedition conducted habitat mapping and coral reef assessments in the San Andres Archipelag...

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