scholarly journals Author Correction: Protecting nursery areas without fisheries management is not enough to conserve the most endangered parrotfish of the Atlantic Ocean

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Natalia C. Roos ◽  
Guilherme O. Longo ◽  
Maria Grazia Pennino ◽  
Ronaldo B. Francini‑Filho ◽  
Adriana R. Carvalho
Keyword(s):  
Atlantic Ocean ◽  
Fisheries Management ◽  
Nursery Areas

An amendment to this paper has been published and can be accessed via a link at the top of the paper.

scholarly journals The isotopic niche of Atlantic, biting marine mammals and its relationship to skull morphology and body size

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Massimiliano Drago ◽  
Marco Signaroli ◽  
Meica Valdivia ◽  
Enrique M. González ◽  
Asunción Borrell ◽  
...  
Keyword(s):  
Body Size ◽  
Atlantic Ocean ◽  
Fisheries Management ◽  
Marine Mammals ◽  
Trophic Position ◽  
Sympatric Species ◽  
Isotopic Niche ◽  
Apex Predators ◽  
Skull Morphology ◽  
Ecosystem Based Fisheries Management

AbstractUnderstanding the trophic niches of marine apex predators is necessary to understand interactions between species and to achieve sustainable, ecosystem-based fisheries management. Here, we review the stable carbon and nitrogen isotope ratios for biting marine mammals inhabiting the Atlantic Ocean to test the hypothesis that the relative position of each species within the isospace is rather invariant and that common and predictable patterns of resource partitioning exists because of constrains imposed by body size and skull morphology. Furthermore, we analyze in detail two species-rich communities to test the hypotheses that marine mammals are gape limited and that trophic position increases with gape size. The isotopic niches of species were highly consistent across regions and the topology of the community within the isospace was well conserved across the Atlantic Ocean. Furthermore, pinnipeds exhibited a much lower diversity of isotopic niches than odontocetes. Results also revealed body size as a poor predictor of the isotopic niche, a modest role of skull morphology in determining it, no evidence of gape limitation and little overlap in the isotopic niche of sympatric species. The overall evidence suggests limited trophic flexibility for most species and low ecological redundancy, which should be considered for ecosystem-based fisheries management.

scholarly journals Increasing Knowledge of Biodiversity on the Orphan Seamount: A New Species of Tedania (Tedaniopsis) Dendy, 1924

2021 ◽  
Vol 8 ◽  
Author(s):  
Pilar Ríos ◽  
Javier Cristobo ◽  
Emily Baker ◽  
Lindsay Beazley ◽  
Timothy Culwick ◽  
...  
Keyword(s):  
New Species ◽  
Atlantic Ocean ◽  
Northern Hemisphere ◽  
Fisheries Management ◽  
External Morphology ◽  
Labrador Sea ◽  
Horizon 2020 ◽  
Additional Information ◽  
Northern Atlantic ◽  
A New Species

A new Tedania species (Porifera) was collect using remotely operated vehicles during the Canadian mission HUD2010-029 and the British RRS Discovery Cruise DY081, on the Orphan Seamount near the Orphan Knoll, northwest Atlantic, between 2999.88 and 3450.4 m depth. Orphan Knoll is an isolated, drowned continental fragment 550 km northeast Newfoundland in the Labrador Sea. This region is biologically rich and complex and in 2007, the regional fisheries management organization operating in the area regulated that no vessel shall engage in bottom-contact fishing activities until reviewed in 2020 with a review slated at the end of this year. Members of the genus Tedania are uncommon in the temperate northern hemisphere with only six species known previously: Tedania (Tedania) anhelans; Tedania (Tedania) pilarriosae; Tedania (Tedania) suctoria; Tedania (Tedania) urgorrii; Tedania (Tedaniopsis) gurjanovae; and Tedania (Tedaniopsis) phacellina. The particular features of the new sponge we describe are the very peculiar external morphology which is tree-like with dichotomous branching—a morphology not previously described in this subgenus; and the combination of spicules found: long styles, the typical tornotes of the subgenus and two sizes of onychaetes. Additional information is provided on other species of Tedaniopsis described from the Atlantic Ocean. Based on the characteristics reported, we propose a new species, Tedania (Tedaniopsis) rappi sp. nov. in honor of Prof. Hans Tore Rapp (1972–2020), University of Bergen, Norway, a renowned sponge taxonomist and coordinator of the Horizon 2020 SponGES project. The holotype of T. (T.) phacellinaTopsent, 1912 from the Azores, the only other northern Atlantic species in the subgenus Tedaniopsis, was reviewed for comparison.

scholarly journals Otolith chemoscape analysis in whiting links fishing grounds to nursery areas

2020 ◽  
Vol 3 (1) ◽  
Author(s):  
Neil M. Burns ◽  
Charlotte R. Hopkins ◽  
David M. Bailey ◽  
Peter J. Wright
Keyword(s):  
Fisheries Management ◽  
Spatial Scales ◽  
Life Stage ◽  
The West ◽  
Nursery Areas ◽  
Effective Strategies ◽  
Quantitative Estimates ◽  
Continuous Surface ◽  
Merlangius Merlangus ◽  
The Uk

AbstractUnderstanding life stage connectivity is essential to define appropriate spatial scales for fisheries management and develop effective strategies to reduce undersized bycatch. Despite many studies of population structure and connectivity in marine fish, most management units do not reflect biological populations and protection is rarely given to juvenile sources of the fished stock. Direct, quantitative estimates that link specific fishing grounds to the nursery areas, which produced the caught fish are essential to meet these objectives. Here we develop a continuous-surface otolith microchemistry approach to geolocate whiting (Merlangius merlangus) and infer life stage connectivity across the west coast of the UK. We show substantial connectivity across existing stock boundaries and identify the importance of the Firth of Clyde nursery area. This approach offers fisheries managers the ability to account for the benefits of improved fishing yields derived from spatial protection while minimising revenue loss.

Genetic evidence for regional philopatry of the Bull Shark (Carcharhinus leucas), to nursery areas in estuaries of the Gulf of Mexico and western North Atlantic ocean

2019 ◽  
Vol 209 ◽  
pp. 67-74 ◽  
Author(s):  
Nadia Sandoval Laurrabaquio-A ◽  
Valentina Islas-Villanueva ◽  
Douglas H. Adams ◽  
Manuel Uribe-Alcocer ◽  
Jaime R. Alvarado-Bremer ◽  
...  
Keyword(s):  
Atlantic Ocean ◽  
Gulf Of Mexico ◽  
North Atlantic ◽  
North Atlantic Ocean ◽  
Genetic Evidence ◽  
Nursery Areas ◽  
Carcharhinus Leucas ◽  
Bull Shark

Discriminating among yellowfin tuna Thunnus albacares nursery areas in the Atlantic Ocean using otolith chemistry

2018 ◽  
Vol 603 ◽  
pp. 201-213 ◽  
Author(s):  
LL Kitchens ◽  
JR Rooker ◽  
L Reynal ◽  
BJ Falterman ◽  
E Saillant ◽  
...  
Keyword(s):  
Atlantic Ocean ◽  
Yellowfin Tuna ◽  
Thunnus Albacares ◽  
Otolith Chemistry ◽  
Nursery Areas

The Convention on the Conservation and Management of Fishery Resources in the South East Atlantic Ocean, 2001: an Introduction

2002 ◽  
Vol 17 (1) ◽  
pp. 33-77 ◽  
Author(s):  
Andrew Jackson
Keyword(s):  
Atlantic Ocean ◽  
Fisheries Management ◽  
East Atlantic ◽  
Fish Stocks ◽  
Fishery Resources ◽  
History Of ◽  
Key Issues ◽  
Effective Use ◽  
Management Organisation ◽  
Conservation And Management

AbstractThe SEAFO Convention, signed in April 2001, is one of the first new conventions to create a regional fisheries management organisation since the adoption of the UN Fish Stocks Agreement. The negotiating history of the convention, and the way the SEAFO participants dealt with key issues in the international fisheries management, illustrates effective use of the Agreement, even before the entry into force of the Agreement, and while it remains uncertain whether all SEAFO participants will also be bound by the Agreement when it is in force. The SEAFO Convention also deals with discrete high seas stocks, not covered by the Agreement.

scholarly journals Multisatellite-Based Feeding Habitat Suitability Modeling of Albacore Tuna in the Southern Atlantic Ocean

2020 ◽  
Vol 12 (16) ◽  
pp. 2515
Author(s):  
Ali Haghi Vayghan ◽  
Ming-An Lee ◽  
Jinn-Shing Weng ◽  
Sandipan Mondal ◽  
Ching-Te Lin ◽  
...  
Keyword(s):  
Atlantic Ocean ◽  
Fisheries Management ◽  
Habitat Suitability ◽  
Sea Surface ◽  
Suitable Habitat ◽  
Positive Trend ◽  
Catch Per Unit Effort ◽  
Albacore Tuna ◽  
Feeding Habitat ◽  
Southern Atlantic Ocean

Decision strategies in fisheries management are often directed by the geographic distribution and habitat preferences of target species. This study used remote sensing data to identify the optimal feeding habitat of albacore tuna in the Southern Atlantic Ocean (SAO) using an empirical habitat suitability model applying longline fisheries data during 2009–2015. An arithmetic mean model with sea surface temperature (SST) and sea surface chlorophyll-a concentration (SSC) was determined to be suitable for defining the albacore habitat in the SAO. The optimal ranges of SST and SSC for the habitat were approximately 16.5 °C–19.5 °C and 0.11–0.33 mg/m3, respectively. The study revealed a considerable positive trend between the suitable habitat area and standardized catch per unit effort (r = 0.97; p < 0.05); due to the west-to-east and northward development of the suitable habitat, albacore schools moved to the northeast of the SAO, thus increasing catch probability in April to August in that region. Overall, the frontal structure of SST and SSC plays an essential role in the formation of potential albacore habitats in the SAO. Our findings could contribute to the establishment of regional ecosystem-based fisheries management in the SAO.

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