Results 1 to 10 of about 85 (61)

Population structure of Atlantic swordfish (Xiphias gladius L. 1758) (Teleostea, Xiphiidae) using mitochondrial DNA analysis: implicationsfor fisheries management [PDF]

Animal Biodiversity and Conservation, 2011
Recent studies on Atlantic swordfish (Xiphias gladius L. 1758) genetic structure have demonstrated significant heterogeneity but the precise boundary between populations remains to be identified. In this context, genetic diversity was investigated by PCR–
A. Garcia, S. Cecchetti, M. N. Santos, S. Mattiucci, G. Nascetti, R. Cimmaruta   +5 more
exaly   +9 more sources

The complex rostral morphology and the endoskeleton ossification process of two adult samples of Xiphias gladius (Xiphiidae)

Journal of Fish Biology, 2022
Abstract The authors studied the morphology of the upper and lower jaws, vertebrae and dorsal‐fin rays of the teleost fish Xiphias gladius to analyse the skeletal architecture and ossification pattern. The analogies and differences among these segments were investigated to identify a common morphogenetic denominator of the bone tissue osteogenesis and ...
Ugo Pazzaglia, Renata Manconi
exaly   +6 more sources

Neglected fishery data sources as indicators of pre‐industrial ecological properties of Mediterranean swordfish (Xiphias gladius, Xiphiidae)

Fish and Fisheries, 2022
Abstract Management of fish populations and ecosystems suffers from data and knowledge gaps, particularly with respect to how humans and nature affect dynamics at multi‐decadal and longer time scales. However, collection of new data which indicates population or ecosystem status is slow and expensive. Here we analyse c.
Pierpaolo Consoli, TERESA Romeo, Anders Nielsen   +2 more
exaly   +6 more sources

A New Specimen of Xiphiorhynchus sp. cf. aegyptiacus (Istiophoriformes, Xiphioidei, Xiphiidae) and Billfish Diversity in the Oligocene of South Carolina

Vertebrate Anatomy, Morphology, Palaeontology, 2020
A partial billfish rostrum from the Chandler Bridge Formation (Early Chattian, Oligocene) near Ladson, South Carolina, U.S.A., is described and identified as Xiphiorhynchus sp. cf. aegyptiacus.
William McCuen, Aika Ishimori, Robert Boessenecker   +2 more
doaj   +6 more sources

Loancorhynchus catrillancai gen. et sp. nov., a new swordfish (Xiphioidei, Blochiidae) from the Middle Eocene of central Chile [PDF]

PeerJ, 2019
This contribution describes the skull remains of a swordfish (Perciformes, Xiphioidei), recovered from Middle Eocene beds of central Chile. Comparison with known fossil and extant xiphioids reveals derived traits only present in the Neogene swordfish ...
Rodrigo A. Otero
doaj   +2 more sources

A global, historical database of tuna, billfish, and saury larval distributions

Scientific Data, 2022
Knowing the distribution of fish larvae can inform fisheries science and resource management in several ways, by: 1) providing information on spawning areas; 2) identifying key areas to manage and conserve; and 3) helping to understand how fish ...
Kristine Camille V. Buenafe, Jason D. Everett, Daniel C. Dunn, James Mercer, Iain M. Suthers, Hayden T. Schilling, Charles Hinchliffe, Alvise Dabalà, Anthony J. Richardson   +8 more
doaj   +1 more source

تقدير جهد الصيد في د يحمض، جزيرة سقطرى - اليمن

مجلّة جامعة عدن للعلوم الأساسيّة والتّطبيقيّة, 2021
بيانات اسماك الشعب المرجانية التي تم تجميعها خلال الفترة مارس 2007 حتى مارس 2009 في منطقة د يحمض تعطي فرصة لمعرفة تأثير الاصطياد في تركيبة المجتمع السمكي، فقد تم تحليل البيانات لمعرفة التغيرات في جهد الاصطياد. وأظهرت النتائج أن الصيادين في منطقة د يحمض -
M. A. El Sanabany, M. K. H. Ali
doaj   +1 more source

Insights into the role of deep-sea squids of the genus Histioteuthis (Histioteuthidae) in the life cycle of ascaridoid parasites in the Central Mediterranean Sea waters

Scientific Reports, 2021
Ascaridoid nematodes comprise a wide range of heteroxenous parasites infecting top fish predators and marine mammals as definitive hosts, with crustaceans, squids, and fishes acting as intermediate/paratenic hosts.
Marialetizia Palomba, Simonetta Mattiucci, Fabio Crocetta, David Osca, Mario Santoro   +4 more
doaj   +1 more source

Estimating trends and magnitudes of bycatch in the tuna fisheries of the Western and Central Pacific Ocean

Fish and Fisheries, Volume 24, Issue 5, Page 812-828, September 2023., 2023
Abstract Minimising the unintended capture of fish, marine mammals, reptiles, seabirds and other marine organisms is an important component of responsible fisheries management and for stabilising declines and rebuilding populations of threatened species.
Tom Peatman, Valerie Allain, Lui Bell, Berry Muller, Aurélien Panizza, Naiten B. Phillip, Graham Pilling, Simon Nicol   +7 more
wiley   +1 more source

A synthetic control approach to estimate the effect of total allowable catches in the high seas

Fish and Fisheries, Volume 24, Issue 4, Page 635-651, July 2023., 2023
Abstract Total allowable catch restrictions (hereafter referred to as catch quotas) play an important role in maintaining healthy fish stocks. While studies have identified a positive relationship between catch quota implementation and improved stock status, these methods are subject to selection bias as catch quotas are typically applied to stocks ...
Julia Margaret Lawson, Conner Muir Smith
wiley   +1 more source