• Welcome to TONMO, the premier cephalopod interest community. Founded in 2000, we have built a large community of experts, hobbyists and enthusiasts, some of whom come together when we host our biennial conference. To join in on the fun, sign up - it's free! You can also become a Supporter for just $50/year to remove all ads and gain access to our Supporters forum. Follow us on Twitter and Facebook for more cephy goodness.

Effect of low salinity on survival and ingested food of the common octopus, Octopus vulgaris Cuvier,

DWhatley

Kraken
Staff member
Moderator
Joined
Sep 4, 2006
Messages
20,935
Effect of low salinity on survival and ingested food of the common octopus, Octopus vulgarisCuvier, 1797
Paula Iglesias, Patricia Picón, Manuel Nande, María Jesús Lago, Juan José Otero, Valentín Trujillo, José Iglesias 2016 (Taylor and Francis online subscription)

ABSTRACT
This study analyzes the effect of low salinity on survival and daily food ingestion of octopus subjected to three different water salinities (20, 25, and 30 psu) for 3 days. During the 3-day experiment, octopuses at 20 psu immediately stopped eating, and all died during the first day; at 25 and 30 psu, the octopuses gradually reduced their feed intake and stopped eating after 2 days, but all survived, and when normal salinity conditions were reestablished (34–35 psu), they ingested 30–40 (~27.5% of the initial food intake) and 70–90 g of food/day (~63% of the initial food intake) respectively over the 5-day recovery period. Water salinity of 30 psu could be considered as the recommended lower limit below which actions, such as transferring the commercial floating cages to another location or submerging them, should be taken in order to prevent the negative effects of low salinities on farmed octopuses.
 

Latest Posts

Forum statistics

Threads
20,737
Messages
206,350
Members
8,432
Latest member
Kharp

Monty Awards

TONMOCON IV (2011): Terri
TONMOCON V (2013): Jean
TONMOCON VI (2015): Taollan
TONMOCON VII (2018): ekocak


Top