Results 1 to 10 of about 181 (63)
Breaking Boundaries: First Observation of Intertidal Emergence During Mating in Octopuses. [PDF]
We document the first recorded case of intertidal emergence during copulation in Callistoctopus macropus. A mating pair gradually moved from shallow water onto the rocky shore while remaining attached, with the female resisting and the male counter‐anchoring for nearly 20 min before re‐submerging.
Juijn H +3 more
europepmc +2 more sources
Do shortfin mako Isurus oxyrinchus hunt dolphins actively? [PDF]
Abstract Direct evidence of shark predation on cetaceans is scarce, making it difficult to differentiate between stomach contents that have been scavenged and actively hunted. This study reports the presence of dolphin (Tursiops aduncus and Stenella clymene) remains in the stomachs of three large shortfin makos Isurus oxyrinchus.
Mucientes G +2 more
europepmc +2 more sources
Integrative taxonomy suggests hidden diversity within the fish genus Cyttopsis (Zeiformes, Parazenidae). [PDF]
Abstract Nine specimens of Cyttopsis rosea (Zeiformes: Parazenidae) were collected during scientific surveys at three different locations in the northeast Atlantic. All nine specimens were included in the molecular analysis, adding new cytochrome c oxidase subunit I sequences to public databases.
Bañón R +6 more
europepmc +2 more sources
Methods to estimate marine functional connectivity: A primer. [PDF]
Abstract Organism movement is a key process in the transfer of individuals, genes, functional traits, matter, and energy among habitat patches, at sea and across the land–sea interface. The resulting fluxes, collectively termed marine functional connectivity (MFC), underpin planetary health and an array of ecosystem services.
Sturrock AM +31 more
europepmc +2 more sources
Bivalve Shell Utilization by Juvenile <i>Octopus vulgaris</i> in Sandy Substrates. [PDF]
This study investigates how juvenile Octopus vulgaris adapt to sandy environments with limited shelter and high predation risk by using empty bivalve shells for protection. Through four SCUBA expeditions in NW Spain, nine juveniles were observed using shells that fit their body size, strategically positioning themselves for surveillance and employing ...
Hernández-Urcera J +3 more
europepmc +2 more sources
Complementarity and sensitivity of benthic state indicators to bottom-trawl fishing disturbance. [PDF]
Abstract Many indicators have been developed to assess the state of benthic communities and identify seabed habitats most at risk from bottom trawling disturbance. However, the large variety of indicators and their development and application under specific geographic areas and management contexts has made it difficult to evaluate their wider utility ...
van Denderen PD +31 more
europepmc +2 more sources
ABSTRACT Photobacteriosis is a major threat to marine aquaculture, and the siderophore transporter FrpA represents a promising target for effective subunit vaccine development. In this study, we evaluated Montanide GEL 02 PR and phosphatidylcholine‐based liposomes as aqueous and safer alternatives to Freund's adjuvant for an FrpA‐based subunit vaccine ...
Marta A. Lages +7 more
wiley +1 more source
Transient Ecological Niches for Diazotrophs in Upwelling Bays
Abstract Diazotrophs, microorganisms capable of fertilizing the ocean through biological nitrogen fixation (BNF), are widespread in the oceans, including upwelling bays. However, their ability to respond to short‐lived upwelling pulses, lasting only a few days, remains poorly understood. To investigate diazotrophy across temporal scales, we analyzed 18
D. Fernández‐Román +13 more
wiley +1 more source
Synthetic pelagic biomass size spectra of the tropical and subtropical Atlantic
Abstract Synthetic normalized biomass size spectra (NBSS) comprising non‐synoptically sampled phytoplankton, meso‐ and macrozooplankton, and micronekton including mesopelagic fishes were explored to analyze pelagic community structure in seven regions of the tropical and the subtropical Atlantic representative of different water bodies (NE Brazil shelf,
Heino O. Fock +25 more
wiley +1 more source
Abstract Consistent monitoring of seawater spectrophotometric pH on the total hydrogen ion scale (pHT) has been questioned by an evolving method, with changes in parameterization and the purity of the meta‐cresol purple (mCP). Using real seawater samples, we demonstrate that spectrophotometric pHT measurements obtained with unpurified (UNPUR) and ...
Marta Álvarez +6 more
wiley +1 more source

