New depth record of the precious red coral Corallium rubrum for the Mediterranean

Live colonies of the precious red coral Corallium rubrum have previously been recorded at depths of 600-800 m in the Sicily Channel, but deep-water populations of this species remain poorly known. During a recent research expedition within the 25 nautical mile Fisheries Management Zone around the Maltese Islands, numerous colonies growing deeper than 800 m, … Read more

The need of cartography for coralligenous and rhodoliths beds along the Mediterranean Sea: The Balearic Islands case

Coralligenous and rhodoliths beds are two types of biogenic habitats, structured by calcareous red algae. Widely distributed along the Mediterranean Sea, these formations create complex three-dimensional structures, where countless marine species –including those of high commercial value and endangered ones– feed, rest and nest. These characteristics confer the two habitats a great ecological and economic … Read more

Importance of seamounts-like features for Mediterranean marine habitats and threatened species

Oceana’s exploratory ROV’s dives in Western Mediterranean seamounts have collected more than 300 hours of video from deepsea ecosystem. Findings of threatened species and habitats, like carnivorous sponges, elasmobranches, coral gardens, sponge aggregations, coralligenous beds, etc. or even new species for science like giant foraminifera (Astrorhizidae), or new species for the Mediterranean (i.e. Anomocora fecunda), … Read more

Current Status and distribution of the Madreporaria Dendrophyllia laboreli in the Canaries, South Portugal and Mediterranean Sea

New records of the Dendrophylliidae species Dendrophyllia laboreli in the Mediterranean Sea (Alboran basin), South Portugal and also in the Canaries are biogeographically relevant. The presence in the Mediterranean Sea and the recent wide distribution towards new locations in Canary Islands of such species is discussed in relation to the climatic fluctuations. In the Canaries … Read more

Isidella elongata (Cnidaria: Alcyonacea) facies in the western Mediterranean Sea: visual surveys and descriptions of its ecological role

Isidella elongata is a candelabrum-shaped alcyonacean forming important facies on the bathyal muddy bottoms of the Mediterranean Sea, currently considered a sensitive habitat and heavily impacted by deep-sea fisheries. Until a few decades ago, this facies was a widespread habitat of the deep Mediterranean seabed and I. elongata was a common species in the trawling … Read more

Aggregated Clumps of Lithistid Sponges: A Singular, Reef-Like Bathyal Habitat with Relevant Paleontological Connections

The advent of deep-sea exploration using video cameras has uncovered extensive sponge aggregations in virtually all oceans. Yet, a distinct type is herein reported from the Mediterranean: a monospecific reef-like formation built by the lithistid demosponge Leiodermatium pfeifferae. Erect, plate-like individuals (up to 80 cm) form bulky clumps, making up to 1.8 m high mounds … Read more

Marine Insurance and IUU Fishing: Questions and answers

OCEANA IS MOBILISING THE GLOBAL MARINE INSURANCE INDUSTRY IN TAKING ACTION AGAINST ILLEGAL, UNREPORTED AND UNREGULATED (IUU) FISHING. Read and sign the statement: Assisting ocean stewardship through marine insurance: The insurance industry’s statement against illegal, unreported and unregulated (IUU fishing) In the coming months and years, Oceana is hoping to engage in open dialogue with insurers, working with them to develop … Read more

Recent evidence that the deep sea around Malta is a biodiversity hotspot

Recent ROV surveys of deep-sea areas around the Maltese Islands resulted in the discovery of highly diverse habitats, including extensive rocky areas dominated by living cold water corals and gorgonians at depths of 300–1000 m, a sub-fossil lithistid sponge reef at a depth of ca. 300 m, deep-water caves located at 270–450 m, and vast … Read more