SERPENT Image & Video Database
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Grenadier from Angola
No full textswimmingGrenadier from off Angola.
The features of the macrourid (rounded snout without lateral scale row ridges or terminal scale, fairly long barbel, scales on head and body, dorsal and pelvic fins with only a slightly elongated leading ray, large eye) narrow the generic choices to Coryphaenoides, Malacocephalus, or Ventrifossa. I do not know of a species of the last two genera that occurs that deeply off W. Africa. So, genus Coryphaenoides is the best bet. There are about 9 species of this genus known from off West Africa. This fish does not have the dark 'mustache' typical of C. armatus - does not look robust enough for that species, leading fin rays not elongate enough.. The record is too shallow to be C. profundicola. Color, shape, etc. not right for C. carapinus. Head shape does not look like C. guentheri, although depth range is correct. C. macrocephalus would be a good candidate, but it has long extensions of leading fin rays. That leaves C. mediterranea, C. marshalli, C. zaniophorus, and C. thelestomus
Aega sp.
No full textProbably a temporary parasite, feeding on blood of fish host. The anterior first 3 pairs of pereiopods are hooked to hold on to the host whereas the rest of the pereipods are 'walking legs'.Isopoda Aega sp., possibly Aega bicarinata Leach, 1818.
This specimen was caught using a specimen collector. This particular family of Isopoda, the Aegidae, are temporary parasites on marine fishes. They engorge themselves with food (presumably blood), from their hosts, then dislodge and sit on the bottom to digest their meal.
The specimen seen here is about 5 cm long from head to tail end
Conger conger
No full textShelter in the overtrawl structure during the day. This is a nocturnal predator.A European conger observed in the overtrawl structure at the Whirlwind location, West of Shetland.
European Congers (Conger conger) are found on rocky and sandy bottoms, remaining in shallow water as a juvenile and moving to deeper water as adults. It is found in the Eastern Atlantic (Senegal to Norway) and in the Mediterranean and Black Sea. It is a nocturnal predator which appeared to be resting in shelter provided by the overtrawl structure during our daytime observations. Spawns once, in the summer off Portugal or in the Mediterranean. For more information see Fishbase: http://www.fishbase.org/summary/SpeciesSummary.php?genusname=Conger&speciesname=conge
Decapod (prawn)
No full textThese are Lebbeus, most likely L. polaris. This species isn’t common around the UK and restricted to the very north.
They were observed among hydroids that had grown over an artificial structure that had been at the seabed for 1 year
