Results 31 to 40 of about 1,263 (170)

Towards a unifying systematic scheme of fossil and living billfishes (Teleostei, Istiophoridae)

open access: yesJournal of Systematic Palaeontology, 2022
Extant istiophorids are open ocean apex predators that are extensively studied due to their ecological importance and high values for fisheries. Nevertheless, little is known about their evolution because of a fragmentary fossil record and extremely difficult taxonomy of fossil species. Here, we present a new phylogenetic hypothesis covering fossil and
Carlos De Gracia   +6 more
openaire   +2 more sources

Evidence of a predation event on a tagged Mediterranean spearfish (Tetrapturus belone; Pisces, Istiophoridae), inferred from pop-up satellite tagging data

open access: yesAquatic Living Resources, 2020
The Strait of Messina is located at the centre of the Mediterranean Sea and is considered a biodiversity hotspot and an obligatory seasonal passage for different pelagic species such as sharks, marine mammals, and billfishes.
Malara Danilo   +7 more
doaj   +1 more source

Mediterranean Fishes of the Family Istiophoridae [PDF]

open access: yesNature, 1961
SCOMBROID fishes belonging to the family Istiophoridae are rather uncommon in the Mediterranean. However, a species has been known for a long time and was actually discovered there. It is Tetrapturus belone, described by Rafinesque1 from Sicily, where it is captured chiefly during the summer months; later, it was found in other localities, for example,
openaire   +1 more source

Growth and length-weight relationship of the striped marlin, Tetrapturus audax (Pisces: Istiophoridae), in Cabo San Lucas, Baja California Sur, Mexico

open access: yesCiencias Marinas, 2003
 To determine the age, backcalculate the length, and describe the individual growth and length-weight relationship of the striped marlin Tetrapturus audax, the catch of the sport-fishing fleet from Cabo San Lucas, Mexico, was sampled from 1988 to 1993 ...
FN Melo-Barrera   +2 more
doaj   +1 more source

Techno-economic considerations of shark driftnet fishery, off Lagos coast, Nigeria [PDF]

open access: yes, 1983
Experimental fishing operations with driftnets were conducted in Lagos coastal waters with a view to finding out appropriate gear for effective exploitation of sharks and other pelagic fish species that are not normally caught in trawls.
Udolisa, R.E.K.
core  

Geographic Patterns of Intra‐ and Interspecific Diversity of Riverine Fish Species in the Italian Northern Apennines and Ligurian Alps

open access: yesEcology and Evolution, Volume 16, Issue 4, April 2026.
We investigated the suitability of environmental DNA (eDNA) metabarcoding to identify inter‐ and intraspecific diversity patterns of riverine fish populations across the Adriatic and Ligurian drainage basins in Northern Italy. Our results revealed genetic as well as community differentiations, with the Adriatic side displaying higher taxon richness ...
Dominik Kirschner   +8 more
wiley   +1 more source

New information from fish diets on the importance of glassy flying squid (Hyaloteuthis pelagica) (Teuthoidea: Ommastrephidae) in the epipelagic cephalopod community of the tropical Atlantic Ocean [PDF]

open access: yes, 2007
Squids of the family Ommastrephidae are a vital part of marine food webs and support major fisheries around the world. They are widely distributed in the open ocean, where they are among the most abundant in number and biomass of nektonic epipelagic ...
Cherel, Yves   +5 more
core   +1 more source

Growth Autocorrelation in Atlantic Bluefin Tuna Thunnus thynnus Larvae in the Northwest Mediterranean and the Gulf of Mexico

open access: yesFisheries Oceanography, Volume 35, Issue 2, Page 297-305, March 2026.
ABSTRACT Growth and survival rates during the early life stages are key vital parameters driving population dynamics of fish. Growth rates generally present a pattern of autocorrelation. Growth autocorrelation is stronger when faster and slower growing individuals continue to grow faster and slower.
José María Quintanilla   +6 more
wiley   +1 more source

Reproductive biology of blue marlin (Makaira nigricans) in the western Pacific Ocean [PDF]

open access: yes, 2009
The reproductive biology of blue marlin (Makaira nigricans) was assessed from 1001 fish (ranging from 121 to 275 cm in eye-to-fork length; EFL) caught by Taiwanese offshore longliners in the western Pacific Ocean from September 2000 to December ...
Chien-Chung Tszeng, Chien-Chung Tszeng   +3 more
core  

Use of Rostral Characters for Identifying Adult Billfishes (Teleostei: Perciformes: Istiophoridae and Xiphiidae)

open access: yesCopeia, 1996
were emphasized, one-fourth and one-half the distance between the distal tip and the orbital margin of the lateral ethmoid bone. Characters studied in each region were the depth and width of rostrum and height, width, and position of nutrient canals (as seen in cross-section).
Fierstine, Harry L., Voigt, Nicole L.
openaire   +2 more sources

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