Research Data

One Fish

One Fish is a fish survey conducted at various sites for 15 minute intervals. A different species is chosen for each site and upon entering the water, the researcher begins a 15 minute timer and then counts how many of those individuals are present over the course of the 15 minutes.

Site Name /                      Species /                   # individuals counted

Pillar Coral                              Squirrelfish                                        14

Tres Cocos                              Blue tang                                             18

Mexico Rocks                         Barracuda/Blue Tang              0/29

Playa Blanca                           Stoplight parrotfish

Mangrove                                Schoolmaster snapper                 52

Coral Gardens (center)            Bar jack                                           4

Coral Gardens (north/Deke)   Orange-spotted filefish        4,1

Wreck at Caye Caulker           Bar jack                                               1 (10:00 min interval)

Caye Caulker back reef           Stoplight parrotfish                        9

Turtle Rock Island                  Blue tang                                             23

Hol Chan (protected)              Barracuda/Blue tang                   1/6

Shark Ray Alley                      Stoplight parrotfish                             0

Tuffy                                       Barracuda/Blue tang

Stingray Count

The stingray count is a count conducted on the coast of Ambergris Caye. Starting at the bridge at the northern end of town, the researcher kayaks down the length of the coast, recording all the stingrays that are seen. The count ends at TREC’s dock and takes between 45 min and 1 hour to complete. Start and end times must be recorded. Species typically seen: Southern stingray, Horseshoe ray.

Count 1: duration: 50 min

Southern stingray: 2     Horseshoe stingray: 2

Night Beach Seine Data

Sweeps conducted at dusk with approximately 40ft. of net with ¼ in. mesh.

Date (# sweeps, if provided)

Species (count)

December 29, 2008 (5)

Yellow stingray (1), Grass Shrimp (7), Blue Crab (7), Checkered Pufferfish (11), Hermit Crab (7), Atlantic tripletail (1), Spotfin Mojarra (4), Yellowtail snapper (1), Needlefish (4), Pipefish (1), Spiny reef lobster (1), French grunt (1), Sharpnose pufferfish (1).

January 1, 2009

Needlefish (7), Barracuda (1), Blue Crab (30), Sharpnose pufferfish (30), Grass shrimp (18), Silversides (14), Hermit crab (49), Spiny reef lobster (1), French grunt (1), Schoolmaster snapper (8), Peacock flounder (2), Checkered pufferfish (4), Atlantic spadefish (1), Pipefish (2), Spot-fin mojarra (6), Margate (3), Big-eye scad (7).

January 6, 2009 (7)

Blue crab (16), Schoolmaster snapper (2), Peacock flounder (1), Pipefish (1), Grass shrimp (4), Spiny reef lobster (2), Silversides (6), Sharpnose pufferfish (5), Hermit crab (4), Checkered pufferfish (4), Needlefish (3), White grunt (1).

January 10, 2009

Needlefish (11), Spiny reef lobster (21), Checkered pufferfish (2), Sharpnose pufferfish (5), Atlantic spadefish (1), Schoolmaster snapper (2), Big-eye scad (3), Silversides (12), Grass shrimp (2), Blue-striped grunt (7), Sergeant major (1), Barracuda (1), Hermit crab (3), Lined seahorse (1), Blue Crab (18).

February 17, 2009 (3)

Checkered pufferfish (3), Blue crab (9), Needlefish (2), Silversides (6), Blue-striped grunt (6), Spot-fin mojarra (8), Schoolmaster snapper (1).

March 21, 2009

Blue Crab, Needlefish, Checkered pufferfish,  Spot-fin mojarra, Blue-striped grunt, Redband parrotfish, Palehead blenny, Decorator crab, Peacock flounder, Grass shrimp. ***note: no counts were given, just species names were recorded.

March 27, 2009

Gold spotted snake eel, Checkered pufferfish, Needlefish, Schoolmaster snapper, Blue-striped grunt, Palehead blenny, Spot-fin mojarra. ***note: no counts were given, just species names were recorded.

Date not provided (4)

Houndfish (5), Grass shrimp (21), Blue crab (4), Sharpnose pufferfish (2), Big-eye scad (3), Peacock flounder (2), Pipefish (1), Silversides (8), Blue-striped grunt (1), Spiny reef lobster (1).

Diadema counts

In 2008 an unusual density of this urchin was found at the Pillar Coral site.

It appeared Diadema was finally making a comeback.  15 minute counts were initiated

Feb 29, 2008

Ken 358

students 50 / 43 / 82/ 56 / 63 / 121

March 2, 2008 (Bellermine, Steve Wilt group)

Ken 258

Steve 239

students 78 / 150 / 33

March 9, 2008

Ken 379

students 23 / 34 / 89 / 78 / 72 / 70 / 211 / 192 / 150 / 163 / 169 / 54

Massive die off followed bringing numbers back to average about (30?)

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