An "Unusual" Yellowfin Tuna (Neothunnus macropterus) from the Waters of the Northern Line Islands in the Central Pacific Ocean

Copeia ◽  
1952 ◽  
Vol 1952 (3) ◽  
pp. 210
Author(s):  
Fred C. June
Keyword(s):  
Pacific Ocean ◽  
Yellowfin Tuna ◽  
Central Pacific ◽  
Central Pacific Ocean ◽  
Line Islands

scholarly journals Understanding large-scale, long-term larval connectivity patterns: The case of the Northern Line Islands in the Central Pacific Ocean

PLoS ONE ◽  
2017 ◽  
Vol 12 (8) ◽  
pp. e0182681
Author(s):  
Lorenzo Mari ◽  
Luca Bonaventura ◽  
Andrea Storto ◽  
Paco Melià ◽  
Marino Gatto ◽  
...  
Keyword(s):  
Pacific Ocean ◽  
Large Scale ◽  
Central Pacific ◽  
Central Pacific Ocean ◽  
Larval Connectivity ◽  
Connectivity Patterns ◽  
Line Islands

A spatially disaggregated, length-based, age-structured population model of yellowfin tuna (Thunnus albacares) in the western and central Pacific Ocean

2001 ◽  
Vol 52 (7) ◽  
pp. 937 ◽  
Author(s):  
John Hampton ◽  
David A. Fournier
Keyword(s):  
Pacific Ocean ◽  
Yellowfin Tuna ◽  
Growth Patterns ◽  
Thunnus Albacares ◽  
Central Pacific ◽  
Data Set ◽  
Structured Population Model ◽  
Central Pacific Ocean ◽  
Age Structured ◽  
The Impact

A spatially disaggregated, length-based, age-structured model for yellowfin tuna (Thunnus albacares) in the western and central Pacific Ocean is described. Catch, effort, length-frequency and tagging data stratified by quarter (for the period 1962–99), seven model regions and 16 fisheries are used in the analysis. The model structure includes quarterly recruitment in each region, 20 quarterly age classes, independent growth patterns for juveniles and adults, structural time-series variation in catchability for all non-longline fisheries, age-specific natural mortality, and age-specific movement among the model regions. Acceptable fits to each component data set comprising the log-likelihood function were obtained. The model results suggest that declines in recruitment, and as a consequence, population biomass, have occurred in recent years. Although not obviously related to over-exploitation, the recruitment decline suggests that the productivity of the yellowfin tuna stock may currently be lower than it has been previously. Recent catch levels appear to have been maintained by increases in fishing mortality, possibly related to increased use of fish aggregation devices in the purse-seine fishery. A yield analysis indicates that average catches over the past three years may have slightly exceeded the maximum sustainable yield. The model results also reveal strong regional differences in the impact of fishing. Such heterogeneity in the fisheries and the impacts on them will need to be considered when future management measures are designed.

scholarly journals Correction: Distinct Yellowfin Tuna (Thunnus albacares) Stocks Detected in Western and Central Pacific Ocean (WCPO) Using DNA Microsatellites

PLoS ONE ◽  
2015 ◽  
Vol 10 (12) ◽  
pp. e0144568
Author(s):  
Roselyn D. Aguila ◽  
Sweedy Kay L. Perez ◽  
Billy Joel N. Catacutan ◽  
Grace V. Lopez ◽  
Noel C. Barut ◽  
...  
Keyword(s):  
Pacific Ocean ◽  
Yellowfin Tuna ◽  
Thunnus Albacares ◽  
Dna Microsatellites ◽  
Central Pacific ◽  
Central Pacific Ocean

scholarly journals Distinct Yellowfin Tuna (Thunnus albacares) Stocks Detected in Western and Central Pacific Ocean (WCPO) Using DNA Microsatellites

PLoS ONE ◽  
2015 ◽  
Vol 10 (9) ◽  
pp. e0138292 ◽  
Author(s):  
Roselyn D. Aguila ◽  
Sweedy Kay L. Perez ◽  
Billy Joel N. Catacutan ◽  
Grace V. Lopez ◽  
Noel C. Barut ◽  
...  
Keyword(s):  
Pacific Ocean ◽  
Yellowfin Tuna ◽  
Thunnus Albacares ◽  
Dna Microsatellites ◽  
Central Pacific ◽  
Central Pacific Ocean

scholarly journals Multiple melt source origin of the Line Islands (Pacific Ocean)

Geology ◽  
2021 ◽  
Author(s):  
Robert Pockalny ◽  
Ginger Barth ◽  
Barry Eakins ◽  
Katherine A. Kelley ◽  
Christina Wertman
Keyword(s):  
Pacific Ocean ◽  
Source Region ◽  
Central Pacific ◽  
Age Progression ◽  
Central Pacific Ocean ◽  
Volcanic Chain ◽  
History Of ◽  
Tectonic Reconstructions ◽  
Seamount Chain ◽  
Line Islands

The Line Islands volcanic chain in the central Pacific Ocean exhibits many characteristics of a hotspot-generated seamount chain; however, the lack of a predictable age progression has stymied previous models for the origin of this feature. We combined plate-tectonic reconstructions with seamount age dates and available geochemistry to develop a new model that involves multiple melt regions and multiple melt delivery styles to explain the spatial and temporal history of the Line Islands system. Our model identifies a new melt source region (Larson melt region at ~17°S, ~125°W) that contributed to the formation of the Line Islands, as well as the Mid-Pacific Mountains and possibly the Pukapuka Ridge.

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