Results 61 to 70 of about 3,346 (204)

Marine rewilding principles as a guiding framework for large‐scale ecosystem restoration

Conservation Science and Practice, EarlyView.
As marine ecosystems face accelerating degradation from human pressures, interest is growing in approaches that move beyond protection toward active recovery of ecological processes. This article introduces marine rewilding as a forward‐looking framework and synthesizes ecological and social science to develop eight transdisciplinary principles that ...
Gavin Stark, Guillermo Germán Joosten, Ariane Cornerier, Rachel Schwarz   +3 more
wiley   +1 more source

Anchoring from shipping as a disturbance agent to temperate rocky reef fish: marked shifts observed in trophic and taxonomic guilds

Frontiers in Conservation Science
Anchoring impacts to marine environments from large, ocean-going ships is increasingly recognized as a global threat to marine biota. To date, no replicated assessment examining anchor disturbance to fish assemblages exists at the scale of ocean-going ...
Allison Broad, Matthew J. Rees, Timothy C. Ingleton, Timothy C. Ingleton, Bradley Morris, Andrew R. Davis   +5 more
doaj   +1 more source

Stable Isotope Analyses of Yellowfin and Blackfin Tuna Eye Lenses Reveal Life History Patterns

Fisheries Oceanography, EarlyView.
ABSTRACT Spatial geography, ontogenetic movement, and trophic patterns of mobile species are key elements of species life history, and knowledge of them is critical for effective marine resource management. For yellowfin tuna (Thunnus albacares; YFT) and blackfin tuna (Thunnus atlanticus; BLFT), residency durations and ontogenetic movements in the Gulf
Kylee M. Rullo, Ernst B. Peebles, Julie L. Vecchio, Steven A. Murawski   +3 more
wiley   +1 more source

Artisanal elasmobranch fisheries of northwestern Baja California, Mexico

Ciencias Marinas, 2020
Elasmobranch species composition and spatiotemporal variability can often be characterized from landing surveys of local fisheries, with important management implications. In the present study, we describe the elasmobranch landing composition of 4 major
Omar Santana-Morales, Daniel Cartamil, Oscar Sosa-Nishizaki, Rebeca Zertuche-Chanes, Enrique Hernández-Gutiérrez, Jeffrey Graham   +5 more
doaj   +1 more source

Giants in the cold: Morphological evidence for vascular heat retention in the viscera but not the skeletal muscle of the basking shark (Cetorhinus maximus)

Journal of Fish Biology, EarlyView.
Abstract Fewer than 50 of the over 30,000 extant species of fishes have developed anatomical specializations facilitating endothermy in specific body regions. The plankton‐feeding basking shark (Cetorhinus maximus), traditionally classified as an ectotherm, was recently shown to have regionally endothermic traits such as centralized red muscle (RM ...
C. Antonia Klöcker, Axel Schlindwein, Martin C. Arostegui, Ingrid M. Bruvold, Joel V. Wernström, Montserrat Martin‐Armas, David W. Sims, Nicolas Straube, Andreas Altenburger, Claudia Junge   +9 more
wiley   +1 more source

Shark preferences: Only subtle effects of electromagnetic field exposure and substrate type on small‐spotted catshark (Scyliorhinus canicula) behaviour

Journal of Fish Biology, EarlyView.
Abstract Offshore wind energy plays a crucial role in the transition to low‐carbon power generation. The expansion of offshore wind farms (OWFs) introduces anthropogenic electromagnetic fields (EMFs) from subsea power cables. Elasmobranchs, including sharks and rays, are sensitive to natural electric and magnetic fields used for navigation and prey ...
Lotte J. Bouwman, Annemiek Hermans, Jeroen Hubert, Reindert Nijland, Henrice Jansen, Jildou Schotanus, Hendrik V. Winter   +6 more
wiley   +1 more source

The reproductive biology and cycle of Rioraja agassizi (Müller and Henle, 1841) (Chondrichthyes: Rajidae) in southeastern Brazil, SW Atlantic Ocean

Scientia Marina, 2007
Specimens of Rioraja agassizi were collected at Guarujá pier, São Paulo State, Brazil, from March 2005 to March 2006. A total of 275 males were captured.
María Cristina Oddone, Alberto F. Amorim, Patricia L. Mancini, Walter Norbis, Gonzalo Velasco   +4 more
doaj   +1 more source

Insights into diet and niche separation in the context of prey availability between two sympatric whiprays in a tropical intertidal estuary

Journal of Fish Biology, EarlyView.
Abstract Increasing evidence supports associations between various elasmobranch species and estuarine habitats, particularly during early life stages. However, with substantial knowledge gaps surrounding spatial habitat use and trophic ecology of estuary‐associated species in Australia, we cannot reliably assess the functional importance of these areas
Jaelen Myers, Marcus Sheaves, Adam Barnett   +2 more
wiley   +1 more source

Navigating morphometric minefields: Modelling heteroscedasticity in length‐conversion models

Journal of Fish Biology, EarlyView.
Abstract A common problem when combining data on species' traits from multiple sources is that researchers often measure the same trait in different ways. For example, the length of a shark can be measured in a straight‐line or over‐the‐body, and for lengths that include the tail (e.g., fork and total lengths), with the tail in ‘stretched’ or ‘natural’
Alex J. C. Burton, J. Matías Braccini, Adam N. H. Smith   +2 more
wiley   +1 more source

Age and growth of the Scalloped Hammerhead shark, Sphyrna lewini (Griffith and Smith, 1834), from the southern Brazilian coast Idade e crescimento do tubarão-martelo-entalhado, Sphyrna lewini (Griffith and Smith, 1834), da costa sul do Brasil

Brazilian Journal of Biology, 2011
Age and growth studies for the scalloped hammerhead shark, Sphyrna lewini (Griffith and Smith, 1834) caught along the southern Brazilian coast, were based on ring measurements of vertebrae sections of 115 males, 116 females and 14 unknown sexed sharks ...
JE. Kotas, V. Mastrochirico, M. Petrere Junior   +2 more
doaj   +1 more source