Results 51 to 60 of about 1,275 (210)
ABSTRACT The consequences of mis‐managing vulnerable stocks (i.e., those with low productivity and high susceptibility to depletion) are high and potentially permanent. To support sustainable fisheries management, stock assessments can be improved by increasing the quantity and quality of fishery‐independent survey (i.e., survey) data.
Derek G. Bolser +2 more
wiley +1 more source
Thinking of Fish Population Discrimination: Population Average Phenotype vs. Population Phenotypes
The genetic polymorphism and phenotypic variation are key in ecology and evolution. The morphological variability of the contour of fish otoliths has been extensively used for the delimitation of stocks.
Joana Vasconcelos +9 more
doaj +1 more source
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
To better understand how fish communities respond to environmental changes under extreme climate events, we examine changes in fish communities in Beibu Gulf during strong El Niño and La Niña events.
Miao Li +6 more
doaj +1 more source
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
Modelling Fish Growth with Imperfect Data: The Case of Trachurus picturatus
Growth modelling is essential to inform fisheries management but is often hampered by sampling biases and imperfect data. Additional methods such as interpolating data through back-calculation may be used to account for sampling bias but are often ...
Ana Neves +12 more
doaj +1 more source
Environmental and Protection Effects of Shark‐Companion Associations Across Three Ocean Basins
Companion species frequently associate with large marine hosts, yet the ecological drivers of these relationships remain poorly understood. Using a global dataset of midwater BRUVS deployments, we modelled the presence and abundance of shark‐companion associations across seven shark species and three ocean basins.
Jett K. Walker +2 more
wiley +1 more source
Thermal stabilities of inosine monophosphate-degrading enzymes in several fish muscles
The compositions and inosinic acid contents of ATP-related compounds in various processed fish meat products were examined in this study. Moreover, the relationships between these variables and the heating processes used on the products were investigated.
Hideto Fukushima +4 more
doaj +1 more source
South Pacific jack mackerel, Trachurus murphyi, has an ocean-scale distribution, from the South American coastline to New Zealand and Tasmania. This fish, captured by Humans since the Holocene, is nowadays heavily exploited and its population has ...
Bertrand, A. +13 more
core +1 more source
A STUDY ON THE RACE OF JACK MACKEREL FOUND IN WAKASA BAY
Our analysis and comparison of various morphological and ecological characters of the jack mackerel caught in different localities of Wakasa Bay have led us to the conclusion that this fish living in Wakasa Bay consists of two races. One called “Kuroaji” (black jack mackerel) by fishermen seems to be an offshore migrant, apparently characterized by ...
AZETA, Masanori, OCHIAI, Akira
openaire +2 more sources

