Results 51 to 60 of about 9,574 (221)

Abundance of Octopus vulgaris on soft sediment

open access: yesScientia Marina, 2004
Until now the distribution and abundance of Octopus vulgaris had been investigated in the main fishing areas of the species only by fishing surveys.
Stelios Katsanevakis   +1 more
doaj   +1 more source

Sentience in cephalopod molluscs: an updated assessment

open access: yesBiological Reviews, EarlyView.
ABSTRACT This article evaluates the evidence for sentience – the capacity to have feelings – in cephalopod molluscs: octopus, cuttlefish, squid, and nautilus. Our framework includes eight criteria, covering both whether the animal's nervous system could support sentience and whether their behaviour indicates sentience.
Alexandra K. Schnell   +4 more
wiley   +1 more source

Matching habitat choice could be brightness‐based instead of hue‐based in green‐brown polymorphic grasshoppers

open access: yesOikos, EarlyView.
Some prey species have evolved background matching, that is they resemble their surrounding environment in terms of colour and/or brightness. When prey populations inhabit patchy environments, they may even have evolved specialised phenotypes: each phenotype matching a specific subset of patches.
Lilian Cabon, Holger Schielzeth
wiley   +1 more source

Extraocular Photoreception in Optic Lobes, Suckers, and Skin of Octopus vulgaris

open access: yesIntegrative Zoology, EarlyView.
Evidence of extra‐ocular photoreception in Octopus vulgaris (a) Diagram of the O. vulgaris different tissues considered: SPB, sucker proximal big; SPL, sucker proximal large; SM, sucker medium; SD, sucker distal; SK, skin; OL, optic lobes; RT, retina; (b‐d) Gene expression analysis of Ov‐GRK1 (red), Ov‐retinochrome (green), Ov‐rhodopsin (blue) mRNA ...
Valeria Maselli   +7 more
wiley   +1 more source

Mapping molluscan endocrinology: a systematic and critical appraisal

open access: yesBiological Reviews, Volume 101, Issue 2, Page 970-1002, April 2026.
ABSTRACT Historically, a vertebrate‐centric paradigm has framed our interpretation of molluscan endocrinology, with considerable research focusing on vertebrate‐type steroid hormones (e.g. oestrogens, testosterone). However, contradictory evidence on the occurrence of vertebrate‐type steroid hormones in molluscan tissues, and a lack of the specific ...
Konstantinos Panagiotidis   +3 more
wiley   +1 more source

From commons to commoning as resistance efforts to blue injustice: A sociohistorical and ethnographical approach

open access: yesPeople and Nature, Volume 8, Issue 4, Page 835-853, April 2026.
Abstract Over the last 20 years, collaborative efforts have emerged with the intention of going beyond the pure capitalist economy, seeking to generate transformative community‐based changes that guarantee blue equity, fair distribution and well‐being.
Sílvia Gómez, Alfons Garrido
wiley   +1 more source

Marine flora and fauna of the eastern United States Mollusca: Cephalopoda [PDF]

open access: yes, 1989
The cephalopods found in neritic waters of the northeastern United States include myopsid and oegopsid squids, sepiolid squids, and octopods. A key with diagnostic illustrations is provided to aid in identification of the eleven species common in the ...
Roper, Clyde F. E.   +2 more
core  

Classification of European Illex coindetii and Loligo forbesii Squid Stocks by Trace Element Analysis of Statoliths

open access: yesFisheries Management and Ecology, Volume 33, Issue 2, Page 181-200, April 2026.
ABSTRACT We investigated whether statolith microchemistry analysis could classify ommastrephid and loliginid squid species into fishery stocks. Statolith nucleus (early life stage) and edge (life stage at time before catch) of Illex coindetii (Verany, 1839) and Loligo forbesii (Steenstrup, 1856) from various areas of the North East Atlantic Ocean and ...
Bianca T. C. Bobowski   +10 more
wiley   +1 more source

Behaviour and body patterns of Octopus vulgaris facing a baited trap: first-capture assessment

open access: yesScientia Marina, 2021
This study highlights for the first time individual differences in ethology and vulnerability of Octopus vulgaris (i.e. body postures, movements and skin displays) facing passive baited traps.
Marta Dominguez-Lopez   +2 more
doaj   +1 more source

Ecosystem Impacts of the Landing Obligation for Unwanted Catch in Thermaikos Gulf (Greece)

open access: yesFisheries Management and Ecology, Volume 33, Issue 2, Page 246-259, April 2026.
ABSTRACT Discards by marine commercial fisheries have been an issue of major concern to the scientific community in recent years. We modeled the ecological and trophic consequences of a mandatory landing obligation (LO) regulated by the reformed Common Fisheries Policy [Regulation (EU) 1380/2013] on the Thermaikos Gulf ecosystem (northwestern Aegean ...
Ioannis Keramidas   +3 more
wiley   +1 more source

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