Results 131 to 140 of about 13,126 (256)

Feeding Ecology of Gould's Arrow Squid Nototodarus gouldi (Cephalopoda: Ommastrephidae) in Aotearoa New Zealand Waters

open access: yesNew Zealand Journal of Zoology, Volume 53, Issue 2, June 2026.
Squids are important components of marine ecosystems because of their role as both predator and prey. Across the Tasman Sea, Gould's arrow squid (Nototodarus gouldi) is a commercially targeted ommastrephid squid that supports an economically important fishery.
Lucia Hu   +4 more
wiley   +1 more source

The Battle of Helminths Deep: Molecular Insights Into Oegopsid Squid Parasites in Aotearoa New Zealand

open access: yesNew Zealand Journal of Zoology, Volume 53, Issue 2, June 2026.
Cephalopods play crucial roles in marine ecosystems due to their diverse and indispensable contributions to trophic webs. However, parasitological research on cephalopods remains limited in Aotearoa New Zealand (NZ), despite the commercial significance of certain squid species and the zoonotic potential of the parasites within them. This study aimed to
Chen‐Hua Li   +8 more
wiley   +1 more source

Stable Isotope Analysis of New Zealand Fur Seal Vibrissae Shows Deceased Juveniles Were Weaned Early

open access: yesNew Zealand Journal of Marine and Freshwater Research, Volume 60, Issue 2, June 2026.
The New Zealand fur seal/kekeno (Arctocephalus forsteri, NZFS) is a marine predator native to Aotearoa/New Zealand. Little is known about its fine‐scale dispersal around New Zealand in the nonbreeding season. As an alternative to external marking or electronic tracking, stable isotope analysis was trialed to determine the origin of stranded (deceased ...
Diana Galbraith, B. Louise Chilvers
wiley   +1 more source

Cephalopods of the southern ocean region: potential resdurces and bibliography [PDF]

open access: yes, 1981
Cephalopods (squids and octopuses) are known tobe extremely important organisms in the trophic structure of the Antarctic ecosystems, constituting significant portions of the diets of sperm whales, seals, penguins; pelagic birds and fish.
Roper, Clyde F. E.
core  

Temporal changes in the dietary niche of sympatric seals provides insight into the role of competition in population declines

open access: yesOikos, Volume 2026, Issue 6, June 2026.
Competition theory suggests that interspecific prey competition can result in changes to the dietary niche, but obtaining timeseries of data from sympatric species experiencing temporal variation in competition is challenging. Scotland is an important area for two species of seals, but over the past 20 years, populations of harbour seals Phoca vitulina
Izzy Langley   +7 more
wiley   +1 more source

Retina and Optic Centers of Cephalopods

open access: yes, 2017
This section contains a gallery of original Cajal drawings pertaining to the retina and optic centers in cephalopods.
Javier DeFelipe
core   +1 more source

Late Jurassic Carbon Isotope Excursion (Middle Oxfordian Event) Paces With Astronomical Forcing in the Northwestern Tethys

open access: yesGeochemistry, Geophysics, Geosystems, Volume 27, Issue 6, June 2026.
Abstract Marine carbonate carbon isotopes (δ13C), over orbital to multi‐million‐year timescales, provide critical insight into the carbon cycle connecting Earth's atmosphere, lithosphere, hydrosphere and biosphere. However, the influence of astronomical forcing on deep time carbon cycle dynamics remains poorly constrained.
Deyan Zhang   +4 more
wiley   +1 more source

Editorial: Brain Evolution: Clues From Aquatic Organisms

open access: yesFrontiers in Neuroanatomy, 2021
Paolo de Girolamo   +2 more
doaj   +1 more source

The best defense is a good offense: Anti‐predator behavior of the common octopus (Octopus vulgaris) against conger eel attacks

open access: yesEcology and Evolution
We present the description of defensive behavior in wild Octopus vulgaris against conger eel (Conger conger) attacks based on three video sequences recorded by recreational SCUBA divers in the eastern Atlantic off the coast of Galicia (NW Spain) and in ...
Beatriz Salvador   +4 more
doaj   +1 more source

Season and human footprint weaken the negative effect of temperature on the intraspecific metabolic scaling exponent of wild brown trout populations

open access: yesJournal of Animal Ecology, Volume 95, Issue 6, Page 989-1001, June 2026.
We apply a new parameterized model through linking metabolic scaling and the maximum entropy theory of ecology to quantify the intraspecific metabolic scaling exponent of brown trout populations and assess the main drivers shaping the exponent. Abstract Metabolic scaling fundamentally sets the pace of life in almost all organisms.
Meng Xu, Ignasi Arranz
wiley   +1 more source

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