Results 21 to 30 of about 3,280 (235)

Ocean conditions drive interannual variability in juvenile albacore tuna (Thunnus alalunga) muscle energy content in the California Current System. [PDF]

open access: yesPLoS ONE
Juvenile albacore tuna (Thunnus alalunga) undertake long migrations across the North Pacific that they fuel by feeding in the California Current System (CCS) during the summer. The CCS is a highly dynamic system, which can lead to differences in foraging
Catherine F Nickels   +4 more
doaj   +2 more sources

Molecular detection of a virus, Pilchard herpesvirus, associated with epizootics in Australasian pilchards Sardinops sagax neopilchardus [PDF]

open access: yesDiseases of Aquatic Organisms, 2005
In 1995, and again in 1998, high mortalities of pilchards Sardinops sagax neopilchardus were seen over their entire geographical range on the Australian coastline. A virus with typical herpesvirus morphology was identified as the causative agent, although the source of the virus remains unknown.
J B Jones, M S Crane
exaly   +3 more sources

Phylogeography of the Pacific Sardine, Sardinops sagax, across its Northeastern Pacific Range

open access: yesBulletin, Southern California Academy of Sciences
. The Pacific sardine, (Sardinops sagax), is a small, coastal pelagic species in the family Clupeidae. Sardine are ecologically important forage for many animals, and have historically supported a large commercial fishery.
Ella S. Adams, Matthew T. Craig
semanticscholar   +2 more sources

Collective anti-predator escape manoeuvres through optimal attack and avoidance strategies [PDF]

open access: yesCommunications Biology
The collective dynamics of self-organised systems emerge from the decision rules agents use to respond to each other and to external forces. This is evident in groups of animals under attack from predators, where understanding collective escape patterns ...
Palina Bartashevich   +6 more
doaj   +2 more sources

Effects of Kudoa thyrsites on Proximate Composition and Texture of Merluccius capensis and Zues capensis. [PDF]

open access: yesJ Fish Dis
ABSTRACT Kudoa thyrsites is a myxosporean endoparasite that infects fish, frequently resulting in myoliquefaction, impacting the texture and eating quality of fish muscle. The aim of this study was to investigate the effects of K. thyrsites infection on the proximate composition and texture parameters of raw fillets from two South African economically ...
Henning SSC, Phakathi T.
europepmc   +2 more sources

DNA Metabarcoding Reveals the Diet and Conservation Needs of the Chinese Crested Tern and Greater Crested Terns in Zhejiang Breeding Islands. [PDF]

open access: yesEcol Evol
This study employs DNA metabarcoding to analyze the diet composition of the critically endangered Chinese crested tern and the greater crested tern during their breeding season in Zhejiang. The terns primarily consume epipelagic schooling fish like anchovies and mackerel, with minimal overlap with commercial fisheries (< 5% commercial fish).
Ding P   +10 more
europepmc   +2 more sources

Measurements of natural mortality for Pacific sardine (Sardinops sagax) [PDF]

open access: yesICES Journal of Marine Science, 2013
AbstractZwolinski, J. P., and Demer, D. A. 2013. Measurements of natural mortality for Pacific sardine (Sardinops sagax). – ICES Journal of Marine Science, 70: . The northern stock of Pacific sardine (Sardinops sagax) in the California Current Ecosystem is periodically assessed to provide harvest guidelines for the United States and Canadian fisheries.
Juan P. Zwolinski, David A. Demer
openaire   +1 more source

Microplastics in Commercially Important Small Pelagic Fish Species From South Africa

open access: yesFrontiers in Marine Science, 2020
This study documented the levels of microplastics in three commercially important small pelagic fish species in South African waters, namely European anchovy (Engraulis encrasicolus), West Coast round herring (Etrumeus whiteheadi) and South African ...
Adil Bakir   +12 more
doaj   +1 more source

An updated model of potential habitat for northern stock Pacific Sardine (Sardinops sagax) and its use for attributing survey observations and fishery landings

open access: yesFisheries Oceanography, 2023
Three years after the 2015 collapse of the northern stock of Pacific Sardine that is predominantly located off the west coast of the United States, acoustic‐trawl (A‐T) surveys documented an increase in the presence and persistence of the southern stock ...
J. Zwolinski, D. Demer
semanticscholar   +1 more source

Schooling Behaviour of SardineSardinops Sagaxin False Bay, South Africa [PDF]

open access: yesAfrican Journal of Marine Science, 2003
The schooling behaviour of sardine Sardinops sagax in False Bay on the south coast of South Africa was studied in October 1995 using high-resolution sonar and a hull-mounted, echo-integration unit. School formation and disintegration were studied, and school shape, packing density, swimming behaviour and inter- and intra-school event rates were ...
Misund, O.A.   +6 more
openaire   +3 more sources

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