Results 51 to 60 of about 35,000 (226)

Growth of the blue mackerel Scomber scombrus in Tunisia using the otolith microstructure

open access: yesJournal of the Marine Biological Association of the United Kingdom, 2012
This paper studies the age and the growth of male and female of the Tunisian blue mackerel Scomber scombrus during 2004–2006. The age was determined by interpreting and counting daily increments on the otoliths sagitta of 320 individuals sampled from landings caught by different gears specially by purse seine.
Jabeur, C.   +3 more
openaire   +2 more sources

Microsatellite and mitochondrial haplotype differentiation in blue mackerel (Scomber australasicus) from the western North Pacific [PDF]

open access: yesICES Journal of Marine Science, 2009
AbstractTzeng, C-H., Chen, C-S., Tang, P-C., and Chiu, T-S. 2009. Microsatellite and mitochondrial haplotype differentiation in blue mackerel (Scomber australasicus) from the western North Pacific. – ICES Journal of Marine Science, 66: 816–825. Blue (Scomber australasicus) and chub mackerel (Scomber japonicus) occur sympatrically in the western North ...
Chih-Hsiang Tzeng   +3 more
openaire   +1 more source

Causal Models as a Scientific Framework for Next‐Generation Ecosystem and Climate‐Linked Stock Assessments

open access: yesFish and Fisheries, EarlyView.
ABSTRACT Rapid changes in marine ecosystems highlight the need to account for time‐varying productivity in stock assessments used to support fisheries management. Common approaches incorporate annual variation or regressing processes such as recruitment, natural mortality, or growth on environmental variables.
J. Champagnat   +6 more
wiley   +1 more source

The current state of fish market in Ukraine

open access: yesUkrainian Journal of Veterinary and Agricultural Sciences, 2019
The fishing industry is an important component of the economy of Ukraine at the present stage of development. The development and implementation of the innovative technologies in fish farming and fish processing require mandatory and ongoing analysis of ...
M. I. Burgaz   +3 more
doaj   +1 more source

Regional variability in the trophic requirements of shelf sea fisheries in the Northeast Atlantic, 1973-2000 [PDF]

open access: yes, 2005
Hydrographic, plankton, benthos, fisheries landings, and fish diet data from shelf sea areas in the Northeast Atlantic have been combined into an analysis of the foodweb structure and secondary production requirements of regional fisheries. Fish landings
Baretta-Bekker   +22 more
core   +1 more source

Vertical Habitat Use by Japanese Jack Mackerel Trachurus japonicus Inferred From a Biologging Study in Tokyo Bay

open access: yesFisheries Oceanography, EarlyView.
ABSTRACT The movement ecology of Trachurus japonicus in the adult stage remains poorly understood because observing their underwater behavior over long periods is challenging. This study aimed to examine vertical habitat use by T. japonicus using electronic tags. Ninety fish were tagged and released in November 2022 in Tokyo Bay, Japan.
Junji Kinoshita   +3 more
wiley   +1 more source

Reproductive cycle of the blue jack mackerel, Trachurus picturatus (Bowdich, 1825), off the Portuguese continental coast

open access: yesAquatic Living Resources, 2019
This work provides for the first time a description of the reproductive biology of Trachurus picturatus in Portuguese continental waters (between 41° 49′ and 36° 57′ latitude North).
Costa Ana Maria
doaj   +1 more source

Southern California marine sport fishing from privately owned boats: catch and effort for October-December 1982 [PDF]

open access: yes, 1986
The catch landed and effort expended by private-boat sport fishermen were studied in southern California marine waters between October and December 1982, to determine the impact of one segment of the sport fishery on local marine resources.
Ono, David S., Wolf, Patricia
core  

Research Article Isolation and characterization of polymorphic microsatellite markers for the chub mackerel (Scomber japonicus) and cross-species amplification in the blue mackerel (S. australasicus).

open access: yesGenetics and Molecular Research, 2017
In this study, 10 polymorphic microsatellite markers were developed in Scomber japonicus and were examined on 30 individuals collected from the North Pacific. The number of alleles per locus ranged from 4 to 17. The observed and expected heterozygosities per locus ranged from 0.2759 to 0.8621 and from 0.43071 to 0.9177, respectively.
F F, Chen   +6 more
openaire   +2 more sources

The Staircase Chart: Visualising Vertical and Cross‐Shelf Movements and Dispersal of Early‐Life Fish, Applied to Japanese Jack Mackerel

open access: yesFisheries Oceanography, EarlyView.
ABSTRACT Dispersal during early life stages is a critical process shaping marine fish connectivity and population dynamics, yet direct field observations at the individual level remain elusive. This has limited our understanding of the factors controlling dispersal, including the impact of active swimming by larvae and juveniles. Here, we present a new
Tatsuya Sakamoto   +4 more
wiley   +1 more source

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