Results 21 to 30 of about 17,173 (216)

Effects of Biotic and Abiotic Factors on the Spatiotemporal Distribution of Round Scad (Decapterus maruadsi) in the Hainan Island Offshore Area

Diversity, 2023
Fishery resource and environmental data from four surveys conducted in the Hainan Island offshore area from March 2021 to June 2022 were used to investigate the spatiotemporal distribution of round scad (Decapterus maruadsi). A generalized additive model
Liangming Wang, Changping Yang, Yan Liu, Binbin Shan, Shengwei Ma, Dianrong Sun   +5 more
doaj   +1 more source

Development of species‐specific multiplex real‐time PCR assays for tracing the small pelagic fishes of North Pacific with environmental DNA

Environmental DNA, 2022
Environmental DNA (eDNA) has become a popular non‐invasive method to study the presence of organisms in the environment. To study the ecological behavior and migration routes of small pelagic fishes that are difficult to trace with traditional capturing ...
Marty Kwok‐Shing Wong, Shigenori Nobata, Shin‐ichi Ito, Susumu Hyodo   +3 more
doaj   +1 more source

Use of Citizen Science to Determine Prey Partitioning Between Two Coastal Raptors. [PDF]

Ecol Evol
In Australia, Eastern Osprey (Pandion haliaetus cristatus) and White‐bellied Sea‐Eagle (Haliaeetus leucogaster) occupy the same ecological niche and are suspected of partitioning prey resources. This study investigated this through evaluating the breadth, overlap and partitioning of diets recorded from social media posts.
Biggs L, Baxter GS, Debus SJS, Finch N, Riggs A, Houweling H, Appleby M, Murray PJ.   +7 more
europepmc   +2 more sources

Remote Sensing of the Subtropical Front in the Southeast Pacific and the Ecology of Chilean Jack Mackerel Trachurus murphyi

Fishes, 2023
The Subtropical Front (STF) plays a key role in the ecology of Chilean jack mackerel Trachurus murphyi. Nonetheless, there are few remote sensing studies of the STF in the open Southeast Pacific, and almost all of them have been conducted by satellite ...
Igor M. Belkin, Xin-Tang Shen
doaj   +1 more source

Adding Value to Bycatch Fish Species Captured in the Portuguese Coast—Development of New Food Products

Foods, 2020
We live in a world of limited biological resources and ecosystems, which are essential to feed people. Consequently, diversifying target species and considering full exploitation are essential for fishery sustainability.
Frederica Silva, Ana M. Duarte, Susana Mendes, Patrícia Borges, Elisabete Magalhães, Filipa R. Pinto, Sónia Barroso, Ana Neves, Vera Sequeira, Ana Rita Vieira, Maria Filomena Magalhães, Rui Rebelo, Carlos Assis, Leonel Serrano Gordo, Maria Manuel Gil   +14 more
doaj   +1 more source

Population Genetics of Chilean Jack Mackerel, Trachurus murphyi Nichols, 1920, (Pisces, Carangidae), in Waters of the South Pacific Ocean

Fishes, 2023
Estimating genetic diversity and population structure with polymorphic markers might provide information for the better management of fish that have economic importance.
Sandra Ferrada Fuentes, Ricardo Galleguillos, Victoria Herrera-Yáñez, Cristian B. Canales-Aguirre   +3 more
doaj   +1 more source

Evaluation of the Chilean Jack Mackerel ITQ System [PDF]

Marine Resource Economics, 2016
The debate in commercial fishery management has evolved from whether well-defined rights are necessary for sustainability to measuring the impacts of different rights-based system designs. Most assessments are on developed world fisheries. Using a unique collection of datasets, we develop counterfactuals to evaluate the impacts of the Chilean Jack ...
Kailin Kroetz, James N. Sanchirico, Julio Peña-Torres, David Corderi   +3 more
openaire   +3 more sources

Preliminary results of the empirical validation of daily increments in otoliths of jack mackerel Trachurus symmetricus murphyi (Nichols, 1920) marked with oxytetracycline

Scientia Marina, 2003
The frequency of microincrement formation in sagittae otoliths of jack mackerel Trachurus symmetricus was validated using experiments on captive fish. Adult jack mackerel were injected with a dose of 100 mg of oxytetracycline/kg of fish.
Miguel Araya, Marianela Medina, Hugo Arancibia   +2 more
doaj   +1 more source

The Interaction Between Stock Dynamics, Fishing and Climate Caused the Collapse of the Jack Mackerel Stock at Humboldt Current Ecosystem

Frontiers in Marine Science, 2020
The collapse of marine fisheries had caused a cascade of ecological, social and economic consequences. Recognizing the complex nature of the fisheries collapses is essential for understanding the impact of human activities on natural systems.
Mauricio Lima, Mauricio Lima, T. Mariella Canales, T. Mariella Canales, Rodrigo Wiff, Rodrigo Wiff, José Montero, José Montero   +7 more
doaj   +1 more source

Causes of mortality in young jack mackerel

Marine Ecology Progress Series, 1985
Field and laboratory experiments were conducted with the purpose of partitioning jack mackerel Trachurus symmetricus larval mortality into portions due to starvation and to predation. Field collections were made to determine larval condition, growth, net retention and production; laboratory experiments were conducted to determine growth and body ...
RP Hewitt, GH Theilacker, NCH Lo
openaire   +1 more source