After two quiet days at sea after leaving Tenerife in the Canaries with lots of poor visibility, the conditions improved as we finally left the Saharan Sand behind. On the third day we were enjoying warm sunny weather in the middle of the Atlantic.
With two days of not seeing any Cetaceans, I had a short view of a probably Minke Whale. But it dived quickly, didn't resurface and I hadn't been able to eliminate the possibility of it being a Beaked Whale. Sadly, that is the reality of some sightings. But it is important to be accurate on recording sightings, rather than trying to get a name to a sighting on the briefest of views.
Although the Cetaceans were few & far between, fortunately, we finally started to see good numbers of Flying Fish.
Mirrorwing Flying Fish: They can be identified by their glassy and veined wings. Some have a broad transverse clear bar from base of the wing to its middle and a broad light grey band on rear half of the wing. The pelvic fins are enlarged and clear. They can get up to about a foot in length
Seeing Flying Fish is always a treat and it is endlessly enjoyable. Firstly, they are good to convince you that when you aren't seeing anything at sea, it is because there isn't anything appearing. So when you see Flying Fish, then you know you aren't just staring sleepily at the sea.
Mirrorwing Flying Fish: They range across most the tropical Atlantic from as far North as the Caribbean and Cape Verde to as far South as Brazil and St Helena within their core range, but they occur less frequently North and South of this core range
Secondly, they are great to show the passengers and tell them about their interesting ability to jump out of the water and glide to escape a predator: they assume the ship is a giant predator.
Mirrorwing Flying Fish: This was the commonest species of Flying Fish that I saw with over one hundred individuals seen daily as we headed for the Caribbean
Finally, they are a photographic delight and with practice, it is possible to get some nice photos. Having photos is great, as it is then possible to show the passengers their exquisite fins which is often difficult to see in the field. When I was not on survey, I was generally standing in a good position and looking for Flying Fish, whilst chatting to passengers. This allowed me to get a few nice photos. I also skipped one lunch to try some photography from closer to sea level. Unfortunately, this coincided with a period of few Flying Fish.
Mirrorwing Flying Fish: Their identification is difficult as I've yet to find a field guide covering their identification. There is the useful Fishbase website which covers the species, along with some identification information and range maps. However, it is focused on identification of caught specimens and it doesn't have photos of them in flight
Mirrorwing Flying Fish: Another problem with their identification is that the colour of the wings of Flying Fish rapidly fades once they are dead and this will make it harder to correlate the species in flight with caught specimens
Mirrorwing Flying Fish: When the finish their glide, they often drop their lower tail into the water & flick it side to side. This gives them enough speed to lift off the water surface again and often in a different direction. They also produce excellent wavy ripples if the water is calm. The best Flying Fish can repeat this two or three times and get close to forty or fifty metres from where they jumped out of the water
It wasn't always wall to wall sunshine during the day: There was some threatening weather ahead during the afternoon. Fortunately, we missed this rain squall
Our fourth day at sea was similar to the third day, with a good sunrise.
We also saw a number of Small Clearwing sp. They were typically around six inches long, with a dark bluish upper body with pale undersides & clear wings with obvious veins. The Fishbase website confirms the specific identification of the Small Clearwing sp is tricky. There are two species, Exocoetus volitans and Exocoetus obtusirostris, which both occur and have similar ranges along the route of the Saga Caribbean Calypso. Exocoetus volitans can be distinguished from Exocoetus obtusirostris by having a less blunt snout and by the origin of the anal fin being at a location behind the origin of the dorsal fin. This feature isn't possible to clearly see in my photos.
Small Clearwing sp: This was the second commonest species of Flying Fish that with around thirty or so individuals seen daily as we headed for the Caribbean (27 Jan 24)
We saw Mirrorwing Flying Fish on a daily basis as we continued our journey to the Lesser Antilles.