Ecocean’s technology and know-how allows researchers and fisheries managers to identify which species return to colonize the coastal habitat, and when and in what numbers they arrive to reinforce the established populations. The capture devices are adapted for sampling in different locations, which can provide valuable and otherwise unobtainable information about the connectivity and dynamic of populations.
Ecocean’s innovative PCC technology opens up a whole range of new opportunities for marine scientific research and data collection. This will be of great interest to research laboratories working in a variety of areas such as:
Fishing stock estimation for coastal demersal species:
If the quantity of post larvae is insufficient, the population cannot be fully renewed. Currently, detection of any decline in population relies on observing the quantity of adult fish over time, by which time it is often too late to take any corrective action. PCC makes it possible to detect any decline in population after only a single reproductive cycle, and thus manage the situation immediately and effectively. Potential applications include quantitative indicators of recruitment which can act as early warning systems, and also qualitative indicators of the state of conservation of the marine environment obtained through measuring the integration of the entire fish population.
Inventory and biodiversity monitoring:
PCC frequently captures species present as post larvae which are not known to be present as adults in the environment (e.g. rabbit fish post larvae are regularly caught on Réunion Island). Therefore species data obtained through PCC is more comprehensive than “classic” census methods, where some species arrive but cannot be captured as adults because of a lake of habitat. It may also indicate that they are invading the area!
An MPA can act as a reference model for “normal” population conditions within an ecosystem. The abundance and diversity of species that recruit around a control “MPA observatory” can be compared with less rich or degraded areas. Analysis of post larvae recruitment rates allows accurate comparison of two or more MPAs (in terms of efficiency) or comparison of a reference area with a degraded area.
Regular restocking of adequately reared and conditioned juveniles into a recently protected area will enable more rapid attainment of population equilibrium (resilience). This increase in the resilience can be achieved in terms of abundance, and also in species diversity.
A study of otoliths and DNA sequencing of captures post larvae provides detailed and accurate knowledge of the dynamics of marine animal populations. Research into the connectivity between marine populations is a rapidly growing specialization, which seeks to enable better estimates of the effectiveness of MPAs and, more generally, greater understanding of the overall marine ecosystem.
A floating farm !? what’s this ? As its name suggests, it’s a farm, with cows, that produce good organic milk … but on the water! And of course we have installed #Biohut! It is located in the heart of the port of Rotterdam! Last week, Ecocean was able to equip 4 Biohut and 2 […]
A report on our farm in Marseille, on Al-Jazeera at Port de Marseille-Fos. As a bonus, spotlight on two of our fishermen in the video. #Biodiversity #Restocking #Fish #Mediterranean
This week, 4 Biohut were installed in the Port of Rotterdam. This is a test phase to validate the efficiency of the process in this very special environment: the Port of Rotterdam is the largest commercial port in Europe and the eighth in the world in terms of traffic. Located in the North Sea at […]
Here are the last photos from the floating vegetalized raft implemented on the Serre-Ponçon Lake for 6 months now. Juveniles of perch and pike were observed around our Biohut and in the aquatic vegetation. You can also observe the evolution of the terrestrial vegetation of the Biohut in the middle of an exceptional setting! Thanks again to […]
16 Biohut have been installed yesterday in Port de l’Arsenal in Paris, half of them displaying a new design meant to specifically provide spawning grounds for fish to lay their eggs. Ecological monitoring will be lead conjointly by Ecocean and Paris municipality canal department. The excellent visibility allowed our photographer Remy Dubas to take some […]
In 2016, four Biohut were attached to the bank of a floating garden in the middle of Rotterdam. After one year of installation, a diver from Ecocean went to see what species were to be found in our first dutch artificial nurseries. Despite having only 20 cm of visibility, he was able to observe several […]
The UROS project, which aims to restore the spawning and nursery areas functions in alpine lakes undergoing high artificial tidal range, is in its start-up phase. Last Friday Gilles Lecaillon, Sébastien Fonbonne and our project partners from the IRSTEA / ONEMA cluster of Aix en Provence and the Alpine National Botanical Conservatory were on Lake […]
BioRestore®: It is a comprehensive process of post-larval capture, culture, rearing and restocking on temporary habitats.
“In 2014 the National Aquarium (Aquarium) was introduced to a French based company Ecocean and their Biohut technology. Soon after, the newly found partnership led to the launch of a Biohut Pilot Project in the Inner Harbor of Baltimore, Maryland (United States). This was a first for the Aquarium, launching artificial oyster reef habitat within […]