Results 71 to 80 of about 32,959 (311)

Traditional and Geometric Morphometrics and Invariant Shape Descriptors of Catfish Otoliths in the Yucatán Peninsula: Tools for Species Identification and Individual Size Estimation at Maya Archaeological Sites

Archaeometry, EarlyView.
ABSTRACT This study investigates the use of otolith shape analysis for species identification and size estimation in Ariopsis felis and Bagre marinus, based on 181 modern otoliths obtained from a scientific collection and recent sampling in the coastal regions of Campeche and Yucatán, as well as 39 archaeological otoliths corresponding to the Early ...
Ariana Solis‐Gómez, Jorge Luis Pérez‐Gonzalez, Nayeli Jiménez‐Cano, Maribel Badillo‐Alemán, Alfredo Gallardo‐Torres, Nidiyare Hevia‐Montiel, Daniel Arceo‐Carranza, Xavier Chiappa‐Carrara   +7 more
wiley   +1 more source

Effect of type of otolith and preparation technique on age estimation of larval and juvenile spot (Leiostomus xanthurus) [PDF]

, 2005
Otoliths of larval and juvenile fish provide a record of age, size, growth, and development (Campana and Neilson, 1985; Thorrold and Hare, 2002). However, determining the time of first increment formation in otoliths (Campana, 2001) and assessing the ...
Bath Martin, Gretchen E., Fey, Dariusz P., Hare, Jonathan A., Morris, James A.   +3 more
core  

Patterns of variability in early life traits of a Mediterranean coastal fish [PDF]

, 2013
Spawning dates and pelagic larval duration (PLD) are early life traits (ELT) crucial for understanding life cycles, properly assessing patterns of connectivity and gathering indications about patchiness or homogeneity of larval pools.
Calo A., Di Franco A., Di Lorenzo M., Guidetti P., Planes S., Qian K.   +5 more
core   +1 more source

Contemporary Methods for Capturing Juvenile Salmonids in the Marine Environment

Fish and Fisheries, EarlyView.
ABSTRACT Anadromous salmonids play vital roles in marine and freshwater ecosystems. The most abundant of these fishes—Pacific salmon (Oncorhynchus spp.)—are integral to coastal ecosystems and communities across the North Pacific Rim, but numerous populations are experiencing dramatic declines, particularly towards the south of their range.
Sean C. Godwin, Emma M. Atkinson, Jamieson B. Atkinson, Mackenzie C. Bartlett, William D. P. Duguid, Marc Trudel, Andrew W. Bateman   +6 more
wiley   +1 more source

Differences between the sagitta, lapillus and vertebra in estimating age and growth in juvenile Mediterranean dolphinfish (Coryphaena hippurus)

Scientia Marina, 1999
The otoliths (sagittae and lapilli) and the vertebral centra were evaluated as ageing structures in dolphinfish age 0 juveniles (17.2–72 cm FL) caught in the seasonal small-scale fisheries of Majorca and Sicily (western and central Mediterranean ...
Beatriz Morales-Nin, Mirella Di Stefano, Antonio Potoschi, Enric Massutí, Pietro Rizzo, Salvatore Gancitano   +5 more
doaj   +1 more source

Relationship between fish size and otolith length for 63 species of fishes from the Eastern North Pacific Ocean [PDF]

, 2000
Otoliths commonly are used to determine the taxon, age, and size of fishes. This information is useful for population management, predator-prey studies, and archaeological research.
Harvey, James T., Loughlin, Thomas R., Oxman, Dion S., Perez, Michael A.   +3 more
core  

Classification of time series by shapelet transformation [PDF]

, 2014
Time-series classification (TSC) problems present a specific challenge for classification algorithms: how to measure similarity between series. A \emph{shapelet} is a time-series subsequence that allows for TSC based on local, phase-independent ...
Anthony Bagnall, C Cortes, C Hoare, C Shannon, C Stransky, D Vries De, Edgaras Baranauskas, H Ding, J Demšar, J Lines, James Mapp, Jason Lines, JJ Rodriguez, Jon Hills, L Breiman, L Ye, M Bober, M Hall, N Friedman, P Duarte-Neto, S Campana, W Kruskal, Y Jeong, Z Xing   +23 more
core   +1 more source

A Conceptual Framework and Methods for Studying the Connectivity of Fishes

Fish and Fisheries, EarlyView.
ABSTRACT Connectivity is a multifaceted concept that has important implications for the management and conservation of marine and freshwater fishes. We developed a conceptual framework that encompasses multiple, interrelated categories of connectedness, including landscape (e.g., structural, functional) connectivity and ecological (e.g., trophic ...
Jordanna N. Bergman, Jessica A. Robichaud, Jasper McCutcheon, Michael T. Booth, Brendan Campbell, Grace A. Casselberry, Cienna R. Cooper, Bronwyn M. Gillanders, Lucas P. Griffin, Edward Hale, Luc LaRochelle, Karen J. Murchie, Mary Peacock, Reid G. Swanson, Simon D. Stewart, Ryan. J. Woodland, Daniel P. Zielinski, Steven J. Cooke, Morgan L. Piczak   +18 more
wiley   +1 more source

Otolith morphometrics distinguish difficult species of rockfishes in the Gulf of Alaska

Frontiers in Marine Science, 2015
The oceans around Alaska are home to at least 40 species of rockfishes (Sebastidae). A number of these species are commercially important and are subject to strict catch limitations.
Jeremy P Harris
doaj   +1 more source

Evaluating and Advancing the Use of Shore‐Based Observers for Scientific Sampling and Catch Verification in High‐Volume Fisheries

Fisheries Management and Ecology, EarlyView.
ABSTRACT Shore‐based observers are increasingly being used in place of at‐sea observers to monitor and sample commercial fisheries catch. However, few evaluations assess whether these programs meet their stated goals or how to optimize them, and industry data are rarely tested for accuracy despite serving as the foundation for catch accounting. Using a
Christian Gredzens, Andy Kingham, Jason E. Jannot   +2 more
wiley   +1 more source