Case Studies - Coastal Lagoons: Ecosystem Processes and Modeling for Sustainable Use and Development - page 414

Building of artificial
beaches

Increasing the size
and intensity of
boat traffic

Building of sport
harbors

Absence of
traditional
spas

Sand
dumping

Dredging

Dock and dam
building

Input of estrange
materials to the lagoon
environment

Enlargement and
deepening of El Estacio
Channel

Occasional
input of
allochthonous
species

System instability (increasing
turbidity, nutrient input,
sedimentation rates, etc.)

Decrease in salinity
and mitigation of
extreme
temperatures

Changes in
littoral dynamic Increasing interchange

rates with the
Mediterranean Sea

Stagnant areas with
accumulation of leaves,
fronds, and waste
materials

Changes in
coastal
geomorphology

Disappearing of
filter feeding
assemblages

Local spreading of C.
prolifera and
Chaetomorpha linum

Increasing colonization
rates of allochthonous
species Colonization by new species

Local increase in
number of beaches

Local beach
regression

Jellyfish
(Cotylorhiza tuberculata)

C. prolifera

Loss of biodiversity

Increasing biological
diversity and
competition between
allochthonous and
autochthonous species

Increase of organic matter content in
sediments and progressive covering
in mud

Increasing primary
production by
microphytobentos

Reduction of the
bottom water renewal

Loss of water
quality

Decreasing
autochthonous
and predation species
populations

Anoxic
sediments

Predation on small
plankton, eggs, and
larvae

Losses of environmental and
sanitary quality and tourist appeal

Management policies for
restoration of the
ecosystem

Decreasing traditional fisheries
(mainly of species depending on
substrate: mugilids, esparids,
shrimps)

Lack of traditional
fishing gears
(Pantasanas,
encanizadas)

Economic losses

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