Movement of Caribbean reef fish

Garcia J, Mourier J, Lenfant, P (2015) Spatial behavior of two coral reef fishes within a Caribbean Marine Protected Area. Marine Environmental Research. Link to paper.

New paper on a collaboration with Jessica Garcia on movement patterns of two species of Caribbean reef fish within a Marine Protected Area in Martinique. In this region, only few data on movements are available on these species. Following Jessica’s first paper (Garcia et al. 2014) on the movement of fish in and out of the MPA, this new paper profides finer-scale movement data to better understand habitat use and spatial dynamic of these species with different trophic positions inside the MPA.

1-s2.0-S0141113615000902-gr1

Figure 1: Description of the study location and receiver array.

1-s2.0-S0141113615000902-gr2

Figure 2: Daily detections of Lutjanus apodus

1-s2.0-S0141113615000902-gr3

Figure 3: Daily detections of Sparisoma viride

Both species differ in their activity within the area with L. apodus being more present along the reef at night while S. viride shows a peak of presence at sunrise and sunset. Habitat use of L. apodus is mostly restricted to reefs while S. viride occasionally use silt habitats (Figure4).

1-s2.0-S0141113615000902-gr5

Figure 4: Probabilities of presence of both species in the study area. Left: Lutjanus apodus. Right: Sparisoma viride. Top panel: time of day. Bottom panel: habitats.

They also show different spatial dynamics (Figure 5).

1-s2.0-S0141113615000902-gr6

Figure 5:Spatial network of movements including transition probabilities between receivers.

These results demonstrate the importance of including multiple species when considering movement patterns and habitat use of fish in MPA design.

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s