BAHAMAS MASTERS OF UNDERWATER CAMOUFLAGE
This is my last post until next week, when apparently we can expect a snowy welcome. Hmmmm. Plenty of new material for kind followers – both of you..
The Mangrove Jellyfish Cassiopea, also called the ‘upside-down jellyfish’ for reasons I needn’t dwell on, is the only member of its particular jellyfish family. These creatures prefer warm waters, and typically live upside-down on the sea-bottom, which no doubt makes catching prey very simple. They can be found individually, though more likely in large groups, with individuals displaying different shades and colours.
The Mangrove Jellyfish has one of the milder stings of the numerous species, though human reactions to the sting will vary with the individual. A greater problem may come from swimming around or over a mass of these creatures. Their stinging cells are excreted in a transparent mucus which may invisibly cover the unwary swimmer. Apart from skin-irritation and a rash, the stings are apparently very itchy. My guess is that scratching can only make things worse (cf No-see-ums…). The first of the two videos below was taken recently by Sarah Bedard (to whom thanks) who “found a great tidal pool full of them at the end of Rock Point Road, Treasure Cay (Abaco)”. The second is short, but with some amazing footage of the Jellyfish in action.
The term ‘PARROTFISH’ comprises many related species (80) around the world inhabiting shallow tropical and subtropical waters. They are commonly found in coral reefs and seagrass beds, and along rocky coasts. They play a significant role in BIOEROSION. Here are some examples of 5 of this species that inhabit the waters of the Northern Bahamas
PARROTFISH FACTS TO ASTOUND AND IMPRESS YOUR FRIENDS WITH
A. FEEDING HABITS
1. Named for their dental arrangements – a mouthful of teeth, forming the characteristic ‘beak’
2. Primarily herbivore but not above snacking on small creatures / organisms or even molluscs
3. Their teeth grow continuously, replacing ones worn away by feeding on coral
4. As they feed on algae etc, their teeth grind up the coral, which they ingest
5. Then (get this!) they digest it and excrete it as sand… it’s a component of your favourite beach!
6. “One parrotfish can produce 90 kilograms (200 lb) of sand each year”. Wiki says so – it must be true
7. They are a vital species in preventing algae from choking coral
B. PERSONAL INFORMATION (theirs, I mean)
1. Some species secrete a protective mucous cocoon to sleep in or to conceal themselves from predators
2. A mucous substance also helps heal damage, repel parasites, & protect them from UV light
3. As they develop, most species change colour significantly to become vivid adults – “polychromatism”
4. Some juveniles can change colour temporarily to mimic other species as a protection
5. Most are “sequential hermaphrodites”, turning from female to male (a few change vice versa)
6. They tend to hang out in groups of similarly-sized / -developed fish
7. Single males tend to have several lady friends, and aggressively defend their love rights
8. Parrotfish are PELAGIC SPAWNERS. Females release many tiny buoyant eggs into the water, which float freely and settle into the coral until they hatch
9. Unlike other fishes, they use their pectoral fins to propel themselves
10. Their feeding behaviour makes them unsuitable for marine aquariums
Anyone interested in getting more information about Parrotfishes – maybe about that whole female / male transformation thing? – is recommended to look at an article by Tim Smith of Miami University, Ohio entitled THE BAHAMAS: A CLOSER LOOK AT THE COLORFUL AND UNIQUE PARROTFISH Click on the P-word to get to it directly.
If you are pressed for time, here is the article conveniently digested into bullet points:
Some more bullet points from Tim Smith’s article:
STOPLIGHT PARROTFISH (adult and, below, juvenile form)Thanks to Melinda of Grand Bahama Scuba for her fantastic illustrative pics; the header is mine own
It’s possible that I won’t be quite as attentive with posts / replies to comments etc over the next couple of weeks or so. I’ve a few things in the pipeline, but it may depend on wifi access… I’m giving up trying to use an iPhone to post while on the move – fine for snaps, but not for anything more complicated. So apologies in advance, and like Arnie, I’m afraid I’ll be back…
I recently posted about the highly coloured QUEEN ANGELFISH, a striking coral reef resident glowing with fluorescent blues and yellows. It’s the Angelfish that went into showbiz and succeeded. Its close cousin the Gray Angelfish is a more sedate creature, with the appearance of a professional – law, possibly, or medicine. That thin blue fin-edging suggests a flamboyant streak. Slightly mean mouth? Lawyer.**
This species is found in the warm waters of Florida, and south through the Bahamas and Caribbean as far as Brazil. They are found at depths from 2 m. down to 30 m. You are most likely to encounter one on a coral reef feeding on sponges, its main diet. The fish below with the bluer face is a teenager, in transition between juvenile and adult.
It’s clear from side on that Gray Angelfish are ‘upright flat’, but it’s surprising just how slim they actually are. Photographer Melinda Riger has captured this front view against a stunning red backdrop. Disappointingly, these fish seem to lead blameless and anodyne lives as reef-foragers, and I’ve been unable to turn up a single interesting fact about them. That’s lawyers for you.**Photo Credits: main images ©Melinda Riger, Grand Bahama Scuba; Header – Wikipix
** I can say this – I am one…
This post is the first of a planned series on Bahamian reef fish. Those who follow this blog (I thank you both) may recall with horror (or worse, pity) my own efforts with reef fish, using a tiny cellphone-sized video camera. Misty stills culled from video footage. Enthusiastically wobbly movies as I struggle to swim and breathe simultaneously in an alien element. I am more underwater CLOUSEAU than COUSTEAU. However, thanks to Melinda Riger, who with husband Fred runs GRAND BAHAMA SCUBA, I have kind permission to borrow and display images from her stock of wonderful reef fish photographs.
The spotted drum fish (or Jack-knife fish) belongs to a large worldwide family, the Sciaenidae. Besides other drum varieties, the family includes ‘croakers’. These species are all named for the repetitive throbbing or drumming sounds they make. This involves the fish beating its abdominal muscles against its swim bladder. If I find out the reason for this (Species communication? Food call? Alarm? Warning? A piscine ‘advance’? Happiness?) I will add it here in due course. Here an example of an atlantic croaker from the excellent DOSITS site (Discovery of Sounds in the Sea)
The spotted drum is one of the few fish of the species to inhabit coral reefs – most are bottom-dwellers (often in estuaries), avoiding clear water. These fish tend to be nocturnal feeders, feeding on small crabs, shrimp and small invertebrates. As far as I can make out they are solely (or primarily) carnivore, and do not graze on algae of other reef plant life.
The photos above are of adult spotted drums. The ones below are of juveniles, and show the remarkable growth-pattern of these fish, from the fragile slender creature in the top image, through the intermediate phase of the one below it (with the amazing brain coral), to the striking adult versions above. People like to keep these pretty fish in aquariums; fine, I’m sure there are plenty to go round, but these ones look pretty happy to me in their natural reef environment…
Juvenile drum fish (school-age)
Finally, I’ve just come across this short video from a “Florida Aquarium”, showing how these fish swim. It rather looks as though it has been fin-clipped for some reason… or just damaged, maybe
FLAMINGO TONGUE SNAILS & SHELLS: COLOURFUL GASTROPODS OF THE CARIBBEAN
The FLAMINGO TONGUE SNAIL Cyphoma gibbosum is a small sea snail (marine gastropod mollusc), related to cowries. The live animal is brightly coloured and strikingly patterned, but that colour is only in the ‘live’ parts – the shell itself is pale and characterised by a thick ridge round the middle. These snails live in the tropical waters of the Caribbean and wider western Atlantic. Whether alive or dead, they are easy to identify.
This snail on the left (thanks, Wiki) is snacking on a coral stem, leaving a feeding track behind it. The structural shell ridge is clearly visible beneath the distinctively marked live tissue.
The flamingo tongue feeds by browsing on soft corals. Adult females attach eggs to coral which they have recently fed upon. About 10 days later, the larvae hatch. They eventually settle onto other gorgonian corals such as Sea Fans. Juveniles tend to live on the underside of coral branches, while adults are far more visible and mobile. Where the snail leaves a feeding scar, the corals can regrow the polyps, and therefore predation by C. gibbosum is generally not harmful to the coral.
The principal purpose of the mantle of tissue over the shell is as the creature’s breathing apparatus. The tissue absorbs oxygen and releases carbon dioxide. As I have seen it described (unkindly?) “it’s basically their lungs, stretched out over their rather boring-looking shell”.
This species was once common but is becoming rarer. One significant threat comes from snorkelers and divers who mistakenly think that the colour is the shell of the animal, collect up a whole bunch, and in due course are left with… (see photos below)
These photos are of flamingo tongue shells from the Delphi Club Collection. Until I read the ‘boring-looking shell’ comment, I thought everyone thought they were rather lovely… you decide!
Finally, a couple of videos. The first is rather charmingly titled ‘FLAMINGO TONGUES DOING…. SOMETHING’. Any (printable but amusing) suggestions via the Comment box are welcome (Hi Trish!). The second punchily summarises this post. Maybe that’s all that was needed!
The BMMRO has just published the Fall 2012 newsletter, and it’s no surprise to find that the front page news is the arrival of young manatee Georgie on Abaco. After nosing and indeed grazing her way around Abaco and the Cays, she still appears to be contentedly moored in Cherokee after the best part of a month. Here’s the official map of her wanderings
Besides the manatee there’s plenty more to read and look at including
To read the four-page document – and admire the photos - CLICK BMMRO FALL 2012 NEWSLETTER
ABACO’S MANATEE, GEORGIE, SWIMS FROM HOPE TOWN VIA LITTLE HARBOUR TO CHEROKEE
GEORGIE UPDATE 2 OCT Cindy James Pinder has posted on Facebook “Oh no, Georgie the manatee has lost her tracking device. Be on the look out for it in the Cherokee area. We are going to go out and look for her tomorrow with BMMRO. We are hoping that she goes back to the dock area looking for fresh water.”
BMMRO UPDATE 1 OCT I’ve just heard from Diane Claridge and Kendria Ferguson. They have kindly clarified the details of Georgie’s route, which makes her journey longer than my guesstimate (see below). Georgie has continued on her way, and after some resting and some quality sea grass munching, Kendria says (yesterday ) “…right now she is in CHEROKEE!”. I’m not sure where the fresh water springs are along the east coast, but I am beginning to think that Georgie may be on her way to check out Rolling Harbour and the Delphi Club, drawn by telepathic and symbiotic forces as yet unexplained, projected from the blogosphere…
BMMRO FACEBOOK “Georgie the manatee is creating quit a stir in Cherokee! Thank you for the sighting reports! (get some photos please!) To everyone there please don’t feed her lettuce. Manatees become very dependent on humans-their fast learners! It also teaches them to come into marinas which is where their number one predator lives – BOATS!! We want to ensure Georgie’s safety whiles she is here! We are unfamiliar with the area-so if anyone knows of any natural freshwater resources (shallow water seepage/blueholes) please do share that info! It is ok to give her a hose, mainly because we are not sure if she’s getting adequate freshwater in the area. Please remember she is a toddler and her belly is never full so have a cut off limit! See you tomorrow Cherokee!! Take care of Georgie!”
BMMRO report 30 SEP Georgie the manatee continues to travel around the Abaco’s! Fitted with a new satellite tag, she is currently exploring LITTLE HARBOUR. Yesterday, scientists caught up with her by CORNISH CAY where she was taking a quick nap and feeding on seagrass. We will continue to update the public on her whereabouts. Thank you to everyone for all their assistance in locating Georgie and ensuring her safety whiles she takes a much needed vacation from the Berry Islands.
A short time ago I wondered (in print) when a manatee would next be seen in Abaco waters – the nearest candidates being the small Berry Is. population. The answer was quick. Now! Georgie – the recently weaned calf of Rita – had swum across from the Berrys to Abaco, explored the Marls, headed north to Little Abaco, then travelled south on the eastern side of Abaco. She was spotted at Green Turtle Cay, but it had become clear that her satellite tag was malfunctioning, so locating Georgie and monitoring her progress depended on reported sightings.
The BMMRO reported yesterday “Georgie the manatee was sighted at the Sailing Club dock in Hope Town Harbour just after 2pm today! We’d appreciate any further sighting reports as to her whereabouts! Please drive carefully in and around Hope Town Harbour.” Hope Town resident Stafford Patterson was able to get 2 fine photos of Georgie. I contacted him about using them, and he has replied “Permission granted!! And we were happy to host Georgie yesterday.” So here is Abaco’s sole resident manatee (as far as I am aware) enjoying her visit to Elbow Cay.
A team was able to fit a new satellite tag to Georgie (see below), so following her adventures will now be much easier. But where will she go next? What this space or, better still, check out the BMMRO FACEBOOK page
STOP PRESS I’ve been wondering about the distance Georgie has travelled (remembering always that she was weaned only recently). So with the the help of an online map measuring thingy (Free! Cool!), here’s a calculation based loosely on more assumptions than you will find on ASSUMPTION ISLAND. For a start, I don’t know where in the Berry Is. Georgie officially set off from; nor where she was seen on the Marls; nor how she negotiated Little Abaco and the Cays along the east coast of Abaco; nor how many times she circled round exploring as she went. However, taking the ‘as the manatee swims’ direct line approach and assuming no significant deviations, the gizmo reckons the journey was a minimum of 150 miles. With any luck the recovered defective tag will have recorded her exact route, and amply demonstrate that I have wasted 1/2 an hour on this. Still, I wanted to know…
And for anyone wondering about Assumption Island, it does indeed exist, located in the Indian Ocean north of Madagascar. And the spooky thing is… it is shaped remarkably like a manatee! Well, quite like one, anyway.
Assumption Island (geographically correct) Assumption Island (manatee rotation) Awww…Cute!!!
This very short time-lapse video was posted on the always informative ABACO SCIENTIST website administered by Craig Layman of FIU (Florida International University). The site benefits from the wide knowledge of a variety of contributors in many different fields. As it says, “Abaco, just like all of the Bahamian Islands, hosts a wealth of natural wonders. From parrots to whales to blue holes to mangrove wetlands, it is no wonder that scientific research is thriving on the island. The Abaco Scientist is intended as your one-stop source for all things science on Abaco and throughout The Bahamas“.
The coral reefs of Abaco and the Bahamas (as elsewhere) are vital yet vulnerable eco-systems. The adverse effects of global warming (or however you describe it if you shy away from that specific term) are increasingly evident. To that damage can be added a slew of other major threats to coral survival – and to the marine life that thrives on the reefs. There are a number of research projects in progress in the Bahamas into the effectiveness of artificial reefs as a means of conservation of the ecology of reef waters. One of these is by FIU undergraduate student Martha Zapata. In her words, “We have recently been capturing time lapse video of the artificial reefs at night. Many reef fishes, like grunts, will leave the reef around dusk to forage in the nearby seagrass beds during the night. We wanted to be able to observe the fish on the reefs without influencing their behavior, so we used infrared light (which fish cannot see) to illuminate the reef. The image sequences have shown a stark difference in fish abundance from day to night. Also, we have been able to observe some of the more cryptic organisms that have made these reefs their home. Usually masters of disguise, urchins roam about the surface of the reef. Look out for the banded coral shrimp and crab that crawl up the side of the reef to graze on algae and detritus while the fish are away. Even a moray eel makes an appearance near the end!“
Besides specially constructed artificial reefs, other man-made objects provide good foundations for an artificial reefs and marine life – in particular, wrecks. There are many of these in the low waters of the Bahamas, some centuries old, others recent. Fred and Melinda Riger of Grand Bahama Scuba, Freeport, take their diving schools to wrecks because of the profusion of marine life that gathers around – and indeed inside – them.
LAUGHING GULLS ON THE ABACO MARLS
Laughing gulls. Amusingly raucous and raucously amusing. Unless, maybe, you are living right next to a breeding colony during a collective fit of hysterics. These gulls, Leucophaeus atricilla, will be familiar to anyone on the Atlantic coast of North America; in the Caribbean; and further south to the northern coastal areas of South America. In winter, their migration pattern simply involves relocating to the southern parts of their range. They are easily recognisable in the breeding season by their smart black caps, though this fades in winter. And by their unmistakeable call, of course. Immature birds tend to be darker than adults. They breed in large colonies, each female laying 3 – 4 eggs. And like most (all?) gulls, they’ll eat pretty much anything.
We saw – and heard – plenty while bonefishing on the Abaco Marls in June. I took some rather grainy distance shots, as they tended to fly off as the skiff was slowly poled towards them. This gull has found a good vantage point for some quality preening among the mangroves.
The pair below stayed put, and watched our gradual approach with suspicion that turned into noisy protest as we poled past them. I presume they were defending their territory – probably a nest site nearby.
I took a very short video just before they flew off as we drifted by. Apologies for the sound of the breeze – I’ve no idea if it’s possible to reduce the background noise while retaining the bird call. Listening to online bird sound clips (e.g. on the excellent Xeno-Canto) I think not. Or not without expensive editing equipment of a complexity I can’t face…
And here (thanks, Don Jones @Xeno-Canto) is what laughing gulls sound like when one of them has told the one about the bonefish and the shrimp…
SEA URCHINS & SEA BISCUITS – BEACHCOMBING TREASURES ON ABACO
It’s time we had some more shells and other beach treasures on these pages. In the absence of star Abaco beachcomber and blog-contributor KASIA I have taken a closer look at the Delphi Club collection. This has been casually accumulated by the Club, its members and guests during the past 3 years whenever a good specimen has been encountered, and is displayed in the Great Room. The first items to catch my eye were the ECHINODERMS, a family that includes sea urchins, sand dollars, sea biscuits and star fish. Their sun-bleached tests are often found, though in my limited experience the larger they are, the rarer. The link above is to the Wiki-blurb, which has the unpromisingly daunting heading “This article may be too technical for most readers to understand…”. Now there’s a challenge!
First up is a very large SEA URCHIN, a thing of great delicacy and fragility that weighs next to nothing. I have never seen a bigger one. Looking at the fine detail, it is hard to believe that such perfection of symmetry and intricacy can exist in a creature so very painful to tread on.
SEA BISCUITS have similar five-way symmetry to their first cousins SAND DOLLARS but are generally pebble-shaped rather than disc-shaped. I have included 2 close-ups to show the fine details of the pattern – almost like lace-work
This SEA BISCUIT is a different type, with the 5 radials reaching right round it. For some reason it only has 4 and not 5 small holes (as one might expect) at the centre. Unlike SAND DOLLARS they tend to be more oblong than round.
This is the first short video from footage taken in June at Fowl Cay, 2000 acres of protected coral reef waters. This was the start of another great day out snorkelling and island-hopping with dive-diva Kay Politano of ABOVE & BELOW ABACO Marsh Harbour. In due course there will be more videos of fish and coral. There is very slight evidence that lessons have been learned since last year’s erratic novice snorkeler / underwater photographer efforts. Still a way to go of course. The production process has been hampered by a major format problem between my camera chip thingy and the Mac I now use. It told me the data was unrecognisable / corrupted / damaged etc, which was massively disappointing. Then I thought of <<techno-tip>> downloading to an old PC and transferring to the Mac on a memory stick. Problem solved.
This huge swirling mass of (tens of) thousands of small fish confronted me as I round one end of the reef. I’ve never seen anything like it before, except on TV. It was an astounding, dizzy-making spectacle. When I swam into the middle of the shoal, I expected to feel tickled all over – but despite the huge numbers of fish, their speed, and their sudden and apparently random direction changes, I wasn’t conscious of feeling them at all. I assume the commotion resulted from the presence of larger fish feeding on the small ones. Or possibly from my appearance…
Music credit: Gordon Giltrap (Hofner champion) ‘Fast Approaching’
BAHAMAS CONCH QUEST – GASTROPODS, SHELLS & CONSERVATION
Conchs are among the most familiar of all shells. On Abaco they are everywhere: in the sea, on the beach, used ornamentally in gardens, piled up wherever conch is on the menu… (basically, anywhere serving food)
Conchs have other uses besides being a staple food. They provide sought-after pink pearls. Only about 1 conch in 10,000 has a pearl, so bear in mind that if you miss one during your search, you may have another 10,000 to wade through… Conchs can produce music, of a sort (such as when used enthusiastically by the famous ‘conch-blower’ home-team supporter during cricket Test Matches in the West Indies). They are undeniably decorative on a porch or on a shelf.
Conchs have featured in literature and film. In William Golding’s Lord of the Flies the conch represents power and order. A conch is blown to call meetings of the marooned boys. Its power is symbolised by the rule that you have to be holding it to speak at the meeting (an idea that many – all? – Parliaments could benefit from…)
Ian Fleming mentions conchs in several of the Bond books, all such references being totally eclipsed by the memory of the appearance, in the film Dr No, of Honeychile Rider emerging from the sea, conch in hand. Oh, I see. That’s just men is it? Or (good grief) just me? Anyway, may we all agree amicably that Ursula Andress was a most decorative conch carrier?
The supply of conchs is not infinite. Overfish them, take them before maturity or pollute their habitat and this valuable marine resource depletes – and conchs, as with so many marine species, will become threatened. Fortunately there is a Bahamas-wide conservation organisation with a website packed with interest.
COMMUNITY CONCH is “a nonprofit organization that aims to protect queen conchs in the Bahamas, a species of mollusk threatened by aggressive over-fishing. We promote sustainable harvest of queen conch through research, education and community-based conservation”
“Helping to sustain a way of life in the Bahamas”
Much of the research has been carried out in Berry Is, Andros and Exuma Cays. However the team has recently been based at Sandy point, Abaco. To see some of their work on Abaco CLICK LINK===>> ABACO EXPEDITION
In many past posts I have listed ’10 Essential Facts’ about the topic discussed. In that spirit I have borrowed and slightly edited CC’s conch facts; and added a CC video of a conch’s stately ‘full speed ahead’ progress. NB No zoom…
12 CONCH FACTS
A SPEEDY CONCH
INTERNATIONAL MARINE BIODIVERSITY DAY – MAY 22
Yesterday was an important day in the marine conservation and research calendar. Me neither! I had a heads up from the redoubtable SEAMONSTER late last night. So at least I found out on the right day. I am posting the excellent logo to help to raise awareness retrospectively… I ‘get’ everything depicted in this clever sea creature globe – except for the tiny dinosaur… or is it a sea otter?
CLICK this large logo to link the the relevant website, where there are articles catering for every conceivable marine interest
THE IMPACT OF HOOK RETENTION ON RELEASED BONEFISH
Anyone committed to catch and release for bonefish will have wondered about the hooks that from time to time are left in a fish. The issue has now been the subject of a detailed scientific report from ELSEVIER highlighted in the ever-useful THE ABACO SCIENTIST (thanks to Craig Layman). The report’s main conclusions can be summarised as follows:
NEW in June 2012 see later post + video CATCH & RELEASE DEMO ON THE ABACO MARLS for a quick release method with a barbless hook involving minimal contact with the fish. It isn’t suitable for deep-hooked fish or large ones, but it shows how quick the operation can be
Kasia’s back! She recently explored a rather unpromising-looking stretch of Abaco coastline, and it proved to be anything but… Kasia writes: The story goes: one day I took myself for a walk and a bit of beachcombing. I usually don’t bring my camera with me but luckily this time I did. This particular beach looks very barren but on close inspection and a patient eye there are some lovely treasures to be found. Here are some of the treasures I captured!
Great close-ups… are those eggs behind this first one? There’s a similar image in the Macmillan ‘Marine Life of the Caribbean’ but unfortunately neither the caption nor the text refers to them. ADDENDUM: Colin Redfern writes: The “eggs” behind the chiton are fecal pellets
WEST INDIAN TOP-SHELLS (Cittarium Pica)
It looks as if someone… or something… has been having a Nerite feast on the shore. A bird maybe? I had taken the shells above and below to be another variety of Nerite, but as so often scientist and shell expert Colin Redfern has kindly corrected the error. He writes: “Very nice photos. The “nerite feast” is actually a pile of broken West Indian Top-shells (Cittarium pica). The photo immediately above shows a live group of the same species. This is what Bahamians call a whelk (or wilk), and in the lower photo they have been harvested, probably for a stew.
ROCK POOL MISCELLANY
I am trying to ID a much as I can in this pool. All suggestions welcome via ‘Leave a Comment’. So far, the corals are Brain Coral and Pink Coral (I think) but I am going see what else can be given a name…
RED ROCK URCHINS
BMMRO WHALE, DOLPHIN & MANATEE SIGHTINGS MARCH 2012
Hard on the heels of the BMMRO’s Fisheries Report for 2011 – see previous posts – comes the map of last month’s sightings. First, let’s hear it for the manatees, featuring for the 4th consecutive month off the Berry Is. The 2 reports of an ‘unknown large cetacean’ off Elbow Cay are the puzzles of the month. There was a sperm whale in that area in January, but presumably it would have moved away in the meantime…. I wonder what the likely candidates are for ‘large’ besides sperm and humpbacks?
The BMMRO has recently published its Fisheries Report for 2011. The report is comprehensive and covers a far larger area than the waters around Abaco. Extracts are shown below (thanks as alway to Charlotte Dunn for use permission). The full report can be seen in pdf form at BMMRO FISHERIES REPORT
1. First, here is the table of all field data for the 2011 season, from which the incidence of the particular cetacean types can easily be seen. To a layman (me), the most significant reading on the previous year is the increase in sperm whale sightings and animal numbers, up from 14 / 69 in 2010 to 38 / 148 in 2011. I wonder why the difference?
2. Here are results specifically relating to South Abaco, where the majority of cetacean activity is observed (see ‘green’ map). I have included a larger image of the cetacean species so that the key is easier to read
PETERSON FIELD GUIDE Abbott / Morris 350pp
An excellent and comprehensive field guide which covers the area as thoroughly as one could wish. It’s not exactly a pocket book, and at 350 pages it’s quite a chubby paperback – but the sort of size you’d happily throw into a day-bag or backpack. This authoritative shell guide dates from 1947, with frequent reprints. Mine is a fourth edition (1995) – there may be a 2002 one.
Currently £18 from Amazon UK, or new / used for around £7 (a bargain); and a great deal cheaper on Amazon US. Overall 4* reviews
Rolling Harbour rating *****
THE BOOK IN A CONCH SHELL
A MISCELLANY OF BOOKS MORE OR LESS RELEVANT TO ABACO LIFE
These are not books I have read myself. They are books that may be of interest to readers of this sort of blog. Islandy. Beachy. Mariney. A whiff of wildlife. They will be collected together under the BOOKS ETC menu as the series expands. If one of them catches your eye, then check online for reviews, reader ratings and prices. If I get round to one or more of them I will add my own views, but I am still gradually working through wildlife books that I have already paid for…
1. FLOTSAM, JETSAM & OCEAN DEBRIS
Flotsametrics and and the Floating World: How One Man’s Obsession With Runaway Sneakers and Rubber Ducks Revolutionized Ocean Science
by Curtis Ebbesmeyer & Eric Scigliano
“Curtis Ebbesmeyer has made important discoveries about everything from currents to the huge floating garbage patches in the ocean to how life was first spread on earth and how the Vikings settled Iceland. In the tradition of John McPhee’s bestselling books on scientists who both study and try to protect the natural world, The Floating World offers a fascinating look at the creativity and energy of a most unusual man—as well as offering an amazing look at what currents have meant for the world and especially mankind through the centuries. Hardcover; PP: 288; Illustration: 10-15 images throughout” Smithsonian Store
by Skye Moody
“The ocean gives up many prizes, just setting them on our beaches for us to find. From rubber ducks that started out somewhere in Indonesia to land Venice Beach, to an intact refrigerator makes it way to the Jersey Shore. Chunks of beeswax found on the Oregon coast are the packing remnants of 18th century Spanish gold. Author Skye Moody walks the coast, dons her wet suit, and heads out to sea to understand the excellent debris that accrues along the tideline. There she finds advanced military technology applied to locating buried Rolexes, hardcore competitive beachcombing conventions, and isolated beach communities whose residents are like flotsam congregated at the slightest obstacle on the coastline. This book confirms that the world is a mysterious place and that treasure is out there to be found” (Publisher’s Fluff)
Tracking Trash: Flotsam, Jetsam and the Science of Ocean Motion
by Lorree Griffen Burns
“Tracking Trash is the story of Dr. Curtis Ebbesmeyer, an oceanographer who studies the movement of ocean currents. Dr. Ebbesmeyer’s work has attracted attention because he has received much of his information from studying trash. It all began when his mother heard about sneakers that were washing up on a beach after a cargo ship lost one of its containers. Since then, he has tracked sneakers, Lego’s, and even rubber duckies that have been accidentally spilled at sea and made their way to shore. By understanding how ocean currents move, scientists hope to solve many problems such as fish shortages and animals being caught in fishing nets. This book was very enjoyable to read and easy to understand. The pictures were large and engaging. The author did a great job at making it feel like a story while at the same time giving a lot of scientific information” (Satisfied Amazon Punter)
I have just spotted that this book is about to be reprinted and, I imagine, updated at the end of February, so I am adding it to the collection. I note in passing that it is published by Penguin…
One 5* review on Amazon UK sets the scene: “This is a book that follows the journey of plastic ducks, turtles, frogs and beavers after the container they are in falls overboard and breaks open on impact with the sea. Moby Duck is fact that reads as good as fiction. The Author doesn’t only traverse the world of escapee plastic toys but meanders his way through a factory in China that makes bath toys, gets on a ship that is on research mission even though he has a fear of open water and even ends in Alaska where the first plastic duck was found. This is a great read, for anyone who likes a quirky book that tells a true story with wit, charm and gentle humour. Moby Dick is never far away in this book, only he has been transformed into Moby Duck…”
Amazon.com has 42 reviews, averaging a disappoining 3.5*. Some are ecstatic, some lukewarm, few can resist the golden opportunity proffered by the author to be “puntastic”. I like the one titled “An Eclectic Tale, but Caught in Its Own Eddy in the End”. Maybe that is the most astute summary of all.