Results 61 to 70 of about 688 (167)
Retention Bans Are Beneficial but Insufficient to Stop Shark Overfishing
ABSTRACT Sharks are among the most threatened groups of exploited fishes, comprising common bycatch across many fisheries. Management efforts intended to safeguard threatened species have increasingly focused on retention bans to reduce bycatch mortality. However, the population effects of such measures remain unevaluated across species.
Leonardo Manir Feitosa +7 more
wiley +1 more source
A Review of the Status of Sharks, Rays and Chimaeras of Panama to Guide Research and Conservation
ABSTRACT Chondrichthyan fishes (sharks, rays and chimaeras) are a group of high conservation concern globally. Species are impacted by varying threats, although fishing pressure is the primary stressor causing population declines. Panama comprises both Pacific and Caribbean coastlines with a diversity of estuarine and marine habitats supporting small ...
Jorge Manuel Morales‐Saldaña +5 more
wiley +1 more source
Mitigating the effect of by‐catch on endangered marine life
Fishing gears cause substantial impacts on the oceans and their ecosystems, and many marine animals, such as sea turtles, marine mammals, seabirds and elasmobranchs, end up as by ‐catch. In this paper, the most effective mitigation measures were investigated for each group, taking into account the fishing gear with which they interact most.
M. Villafáfila +2 more
wiley +1 more source
First record of Squalus clarkae (Elasmobranchii: Squalidae) in the Southwest Gulf of Mexico
Squalus clarkae is a Squaliform shark described from specimens collected in the northeastern Gulf of Mexico, but whose distribution, based on genetic studies, would include the northwestern Atlantic. However, its southern distribution in the Gulf remained unknown.
Moral-Flores, Luis Fernando Del +3 more
openaire +2 more sources
Century‐scale changes in principal fishery species, as revealed by rich qualitative historical sources. The plot shows the main species landed in four ports in northern Wales (Irish Sea, UK) in three different time periods, illustrating the loss of productive fish fisheries (herring; diverse demersal fishes), to modern‐day fisheries focusing on a few ...
Alec B. M. Moore +4 more
wiley +1 more source
On the occurrence of the arrowhead dogfish, Deania profundorum (Chondrichthyes : Squalidae) off southern Portugal, with a missing gill slit [PDF]
Signalement d’un Deania pro f u n d o ru m ( C h o n d r i c hthyes : Squalidae) capturé dans le sud du Portugal, avec absence d’une fente branchiale. Dans ce travail, nous rapportons la capture d’un chien de mer pointe de flèche, Deania pro f u n d o ...
Coelho, Rui, Erzini, Karim
core +1 more source
Actebia (Protexarnis) squalida
Actebia (Protexarnis) squalida (Guenée, 1852) Bionomics. FP: VI–VIII. Meso-xerophilous species. Steppes, open woodlands, river valleys. Known localities. AKT: Aktogay, Razumovka; P: Pavlodar, Pavlodarskoye, Zhertumsyk; S: Sofiyevka; AK: Tuz, Borly; B: Zhasybai, Airtas; M: Koktas; E: Zhartas.
Titov, Sergey V. +2 more
openaire +2 more sources
Can denticle morphology help identify southeastern Australian elasmobranchs?
Abstract Elasmobranchs are covered in scale‐like structures called dermal denticles, comprising dentine and enameloid. These structures vary across the body of an individual and between species, and are frequently shed and preserved in marine sediments.
Mariah Appleby +3 more
wiley +1 more source
Trait‐based analyses reveal global patterns in diverse diets of albacore tuna (Thunnus alalunga)
Abstract Simplifying complex species interactions can facilitate tracking and predicting functional responses to ecological stressors. This is important for highly migratory pelagic predators, exploiting diverse prey fields as they respond to dynamic environments. We reconstructed the historical resource use of albacore tuna (Thunnus alalunga) globally
Natasha A. Hardy +9 more
wiley +1 more source
FIGURE 1. Squalus suckleyi, neotype (CAS 227267, adult male 674 mm TL). A, Lateral view; B, Ventral view of the head.Published as part of Ebert, David A., White, William T., Goldman, Kenneth J., Compagno, Leonard J.
Daly, Toby S. +6 more
core +1 more source

