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Re: volunteers for thermograph array


Great Dive Trips at Bargain Prices with the Sea Divers


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Posted by Jim on August 25, 2014 at 13:20:48:

In Reply to: volunteers for thermograph array posted by BCH DIVR on January 18, 2012 at 18:48:14:

Cozumel, August 2014 - Year of the Pipehorse

Amphelikturus dendriticus, also known as Acentronura dendritica, is a species of pygmy pipehorse native to the western Atlantic Ocean. Similar to pipefish and seahorses, there is scientific debate about how pipehorses are related. Currently, the pipehorse is the only known member of its genus. Due to its small size (about one-inch), coloration, and habitat, this highly camouflaged creature is rarely seen. While we have found a few individuals in Cozumel before, thanks to the keen eyes of our dive master, we were fortunate to encounter many specimens on this trip – very, very exciting for even this experienced Cozumel diver.

Pipehorse (Amphelikturus dentriticus)

Pipehorses differ from seahorses in many ways: the pipehorse has a single gill opening on the back of the head while seahorses have two on the sides, the male pipehorse broods the young inside their trunk while seahorses brood them in a pouch on the tail, and the pipehorse's head is an extension of the trunk while seahorse heads are angled downward.

Longsnout seahorse (Hippocampus reidi)

The pipehorse should also not be confused with the pipefish, which does not have a prehensile tail among other physiological differences.

Diamond pipefish (unidentified)

“Welcome home!”

Scuba Club Cozumel

Shore dive. After arriving at SCC, checking in, having lunch, and unpacking, we grabbed a couple of tanks and went for a shore dive in front of the hotel. Entry is easy, down metal steps into a well that leads to the open water. There is a lot to see and photograph if you move slowly and look for little stuff. Robin Tackett has posted a great U-Tube video highlighting the artificial reefs and critters directly offshore. Check it out: Shore Diving at Scuba Club Cozumel

Yellowline arrow crab (Stenorhynchus seticornis)

Banded coral shrimp (Stenopus hispidus)

Scrawled cowfish (Acanthostracion quadricornis)

Goldentail moray (Gymnothorax miliaris)

Sand diver (Synodus intermedius)

True tulip (Fasciolaria tulipa) laying eggs.

I went back a couple of days later to take a better picture of the egg cases; they look like little flowers.

Day 2 Coral Diver with Jesús, Wayne & Jayson (Montreal), Tim & Julie (Oklahoma), Deborah and me.

San Francisco

Deborah found the first pipehorse!!!!! (Amphelikturus dendriticus)

Spotted scorpionfish (Scorpaena plumieri)


Caribbean spiny lobster (Panulirus argus)


Painted elysia (Thuridilla picta)


Blue-eye hermit crab (Paguristes cericeus)

Villa Blanca

Spotted cleaner shrimp (Pericimenes yucantanicus)

Sharptail eel (Myrichthys breviceps)

Spotted cleaner shrimp (Pericimenes yucantanicus) on Sun anemone (Stichodactyla helianthus)

Barred cardinalfish (Apogon binotatus)

Three-rowed sea cucumber (Isostichopus badionotus) – chocolate-chip cookie dough.

Shopping trip to Mega and Chedraui for coffee cups and a rinse bucket for the cameras.
Rain in the afternoon.

Day 3 Coral Diver with Jesús and the same divers as the previous day.

Dalila – very little current

Nurse shark (Ginglymostoma cirratum)

French angelfish (Pomacanthus paru)

Hawksbill turtle (Eretmochelys imbriocota)

Pair of French angelfish

Whitespotted filefish (Cantherhines macrocerus)

Tormentos

Graysby (Cephalopholis cruentatus)

This was a tiny little seahorse (Hippocampus reidi) .

Coney (Cephalopholis fulvus)

Linesnout goby (Gobiosoma sp)

Coral Diver

Shore dive

Smooth trunkfish (Lactophrys triqueter)

Stareye hermit (Dardanus venosus)

Pyramid – it’s been about fifteen years since Hotel Cozumel moved this structure from their pool area to underwater.

The sphinx. Spotted scorpionfish (Scorpaena plumieri)

Spotted cleaner shrimp (Pericimenes yucantanicus)

Day 4 Coral Diver with Jesús, et al.

Palancar Gardens

Dolphins! This is a lousy picture - as the dolphins swam by, I just pointed the camera and pushed the shutter. In many, many years of diving, I've only seen dolphins underwater a handful of times.

Grouper (Mycteroperca sp)

Hawksbill turtle (Eretmochelys imbriocota)

Chankanaab reef

Flock of blue tangs (Acanthurus coeruleus)

Milk conch (Strombus costatus)

Coney (Cephalopholis fulvus) – golden juvenile.

Moving onto the sand, inshore from the reef, Jesús found a couple of large seahorses hiding in plain sight.
Longsnout seahorse (Hippocampus reidi)

Day 5 Coral Dive with Jesús, the group plus George. Today is Jason’s fifteenth birthday!

Colombia Reef

Hawksbill turtle

Fringe-back nudibranch (Dondice occidentalis) is a new find for us. Despite many, many years of diving in Cozumel’s waters, it seems we always find something new.

This seaslug is very, very small as shown by my fingernail. Little red nudi (Gastropteron chacmol).

Yocab reef

Scrawled filefish (Aluterus scriptus)

Great barracuda (Sphyraena barracuda) at a cleaning station.

Fiesta!

Day 6 Coral Diver with Jesús, Mike, George, Deborah and me. Only four divers with our own dive guide – sweet!

El Paso del Cedral, the wall and the reef. Contrary to popular belief, this isn’t Cedar Reef, but is named for its location near the road into the town of Cedral in the middle of the island.

Blowing current on the wall so, at the end of the reef, we swam over to the inshore reef and did two dives for the price of one.

Grouper (Mycteroperca sp)

Green moray (Gymnothorax funebris)

Black grouper (Mycteroperca bonaci)

A signature picture from el Paso del Cedral
Porkfish (Anisotremus virginicus)

Guess what! More pipehorses…three on one dive!
Pipehorse (Amphelikturus dendriticus)

Paradise reef. We started at the beginning of the coral formation before moving off into the shallows to look for little stuff. The current switched directions and we drifted back to the beginning of the dive site.

Fringed filefish (Monacanthus ciliatus) playing hide-and-go-seek in a gorgonium.

Flamingo tongues (Cyphoma gibbosum) are normally pretty dormant, but this one was actively crawling around. Can you see the “eye” spot at the base of the antenna?

Cottonwick (Haemulon melanurum)

The bubbles are flamingo tongue egg cases.

Shore dive

Fish eggs

Blue tang (Acanthurus coeruleus) being cleaned by a juvenile angelfish

Juvenile scorpionfish (Scorpaenodes sp)

Spotted cleaner shrimp (Pericimenes yucantanicus)

Day 7 Observer with dive master Miguel, Mike, George, and us.

El Paso del Cedral

Hawksbill turtle

Five nurse sharks!!!!
Nurse shark (Ginglymostoma cirratum)

Channel clinging crab (Mithrax spinosissimus)

George

Would you believe, more pipehorses or are these ones we found before?

Punta Tunich “shallows” AKA San Clemente

Day 8 Coral Diver with Jesús, Mike, George, Jim & Jan, and us.

La Francesa

Tunnels! Parallel to the edge of the reef is a tunnel system that runs much of the length of the coral formation. This is a great place to look for large lobsters, crab, and green morays, or just enjoy the windows and shafts of sunlight filtering down through cracks in the rock. Unfortunately the green moray that we found was hidden, with only a tail showing.

Spotted drum (Equetus punctatus) intermediate stage

Punta Tunich

Midnight parrotfish (Scarus coelestinus)

"Coming through! Make way!"

Black grouper (Mycteroperca bonaci)

Porkfish and grunts

Spotted drum

Gray angelfish (Pomacanthus arcuatus)

Day 9 Coral Diver with Jesús, Mark, Deb, Jim, Jan, George, Mike, and us.

Santa Rosa Wall

Spendid toadfish (Sanopus splendidus)

Paradise

Trumpetfish (Aulostomus maculatus)

More flamingo tongue eggs.

Pipe fish, no bigger than a thread!
Diamond pipefish (unidentified)

Linesnout goby (Gobiosoma sp)

Shore dive

Smooth trunkfish (Lactophrys triqueter)

Sailfin blenny (Emblemmaria pandionis)

Caribbean reef squid (Sepioteuthus sepioidea)

Day 10 Coral Diver with Jesús, Mark, Deb, Jim, Jan, George, and us.

Palancar Horseshoe

San Francisco

Spotted eagle ray (Aetobatus narinari) feeding.

Another pipehorse? They're everywhere!

I got real excited when I spotted what I thought was another pipe horse, but it turned out to be a pipefish.

"Run away! Run away! He's got a GoPro!"

Ornate elysia (Elysia ornata), a sea slug

Reef Cat

Day 11 – Coral Diver with Jesús, Mark/Deb, Jim/Jan, Doug/Jodi, Mike, and us.

Palancar Caves

Doug and Jodi got married in Hawaii before coming to Cozumel on their honeymoon!

Chankanaab

Squirrelfish (Holocentrus adscensionis). "All divers must exit stage left!"

Shy hamlet (Hypoplectrus guttavarius)

Linesnout goby (Gobiosoma sp)

Coney (Cephalopholis fulvus) bicolor variation

Splendid toadfish (Sanopus splendidus)

Day 12 Coral Diver with Jesús, Mark, Deb, Jim, Jan, Doug, Jodi, Mike, and us.

Colombia Bricks

Swallowtail sea slug (Chelidonura hirundinina)

Rock beauty (Holacanthus tricolor) "Weren't you just here in January?"

Tormentos

Midnight parrotfish (Scarus coelestinus)

Fringed filefish (Monacanthus ciliatus)

Coney (Cephalopholis fulvus)

Day 13 Coral Diver with Jesús, group of nine.

Dalila

Nurse shark (Ginglymostoma cirratum)

Tiger grouper (Mycteroperca tigris)

Blenny (Acanthemblemaria sp)

Gray angelfish (Pomacanthus arcuatus)

Yucab

Queen angelfish (Holacanthus ciliaris)

More pipehorses???

Longfin damselfish (Stegastes diencaeus) juvenile

Hogfish (Lachnolaimus maximus)

Lettuce sea slug (Elysia crispata)

Day 14 Coral Diver with Jesús and the gang.

Colombia “Special”

Colombia Shallows

Blenny (Acanthemblemaria sp)

Lettuce sea slug (Elysia crispata). I looked and looked for these slugs but Jesús was the only one who could find any.

Seahare (Aplysia sp)

Coney (Cephalopholis fulvus) bicolor variation

Sand diver (Synodus intermedius)

Miguel

Day 15 Observer with Miguel, Deb, Mark, Jodi, Doug, and us.

Santa Rosa Wall

Nurse shark (Ginglymostoma cirratum)

Paradise

Coney (Cephalopholis fulvus)

Hogfish (Lachnolaimus maximus)

Spendid toadfish (Sanopus splendidus)

Sailfin blenny (Emblemmaria pandionis)

Yellowline arrow crab (Stenorhynchus seticornis)

Spotfin butterflyfish (Chaetodon ocellatus)

Reef Diver

Day 16 Coral Diver with Jesús, Mark, Deb, Doug, Jodi, Mike, Jana, and us.

La Francesa

Barred hamlet (Hypoplectrus puella)

Rainbow parrotfish (Scarus guacamaia)

Midnight parrotfish (Scarus coelestinus)

Chankanaab Reef

Spotted cleaner shrimp (Pericimenes yucantanicus)

Pipehorse…Ho, hum.

Day 17 Dive Cat with Jesús, Mike, Jana, and us.

Palancar Gardens

Yucab reef

"Hey guys. Come back! Look at this!"

Balloonfish (Diodon holocanthus)

Sailfin blenny (Emblemmaria pandionis)

Day 17 Dive Cat with Jesús, Mike, Jana, and us.

Colombia Bricks

Chankanaab Reef

The male sargent major (Abudefduf saxatilus) builds a nest and courts a female who lays her eggs in the nest while he fertilizes them.

Longsnout seahorse (Hippocampus reidi)

Day 18 Coral Diver with Jesús, Mike, Jana, us, and Chris (Dallas).

Dalila

Something you don’t see every day in Cozumel, Chris with dual side tanks!

Queen angelfish (Holacanthus ciliaris)

Yucab

A pair of Thuridilla picta engaged in sex

Yes, the invasive lionfish ( Pterois volitans) are still on the reefs. You can get pez leon (lionfish) tacos in town.

Yes, another pipehorse

Yellowmouth grouper (Mycteroperca interstitialis)

Day 19 Coral Diver with Jesús, Mike, Jana, Chris, Bryce (Utah), and us.

Colombia Reef

San Clemente

Rainbow parrotfish (Scarus guacamaia)

Christmas tree worm (Spirobranchus giganteus)

Flamingo tongue showing the eye spots at the base of the antennae.

Squirrelfish (Holocentrus adscensionis)

Pipefish

Smooth trunkfish (Lactophrys triqueter)

Flamingo tongue (Cyphoma gibbosum)

Midnight parrotfish (Scarus coelestinus)

Night shore dive

Magnificent urchin (Astropyga magnifica)

Banded clinging crab (Mitrax cinctimanus)

Parrotfish in his jammies, sleeping

Velvet shrimp (Metapenaeopsis goodie)

I've looked for the orange ball corallimorph (Pseudocorynactis carbbeorum) for years. With a little help from Robin Tackett, I found these just off the wall in front of Scuba Club!

Crabs cannot mate through their exoskeletons. The male carries a smaller female around until she molts and then has his way before her shell hardens. Ocellate swimming crabs (Portunus sebae)

Day 20 Coral Diver with Jesús, Mike, Jana, Chris, and us.

San Francisco

Pipehorse

Yellowfin grouper(Mycteroperca venenosa) in his crazy underwear.

Paradise

Thuridilla picta

Smooth trunkfish (Lactophrys triqueter)

Day 21

Adios Cozumel. Hasta el ańo proximo.

Photos were taken with an Olympus EM-5 and 12-50mm lens in a Nauticam housing fit with dual Sea and Sea strobes. All images are copyrighted and cannot be used without permission.



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