Species composition and distribution patterns of fishes captured by longlines on the Mid-Atlantic Ridge

Fossen, Inge; Cotton, Charles; Bergstad, Odd Aksel; Dyb, Jan Erik

doi:10.1016/j.dsr2.2007.09.004

Cited by 47 publications

(32 citation statements)

References 23 publications

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“…Multivariate analyses of catch data from trawls and longlines (Bergstad et al 2008b ;Fossen et al 2008 ) revealed that the species composition primarily changed with depth and that, as with pelagic fi shes, variation by latitude was secondary. Species evenness was higher in deep slope and rise areas than on the slopes.…”

Section: Demersal F Ishesmentioning

confidence: 99%

Biodiversity Patterns and Processes on the Mid‐Atlantic Ridge

Vecchione

Bergstad

Byrkjedal

et al. 2010

Life in the World's Oceans

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Section: Demersal F Ishesmentioning

confidence: 99%

Biodiversity Patterns and Processes on the Mid‐Atlantic Ridge

Vecchione

Bergstad

Byrkjedal

et al. 2010

Life in the World's Oceans

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“…Somniosus microcephalus * (Bloch and Schneider, 1801) This cold-water species occurs infrequently in the Azores EEZ, with 2 individuals reported from bottom longline surveys north of the Azores (Fossen et al, 2008) and one individual captured in a bottom trawl survey (Menezes et al, 2012). Local primary literature where species appears: Appears as S. obscurus (Menezes et al, 2012;Menezes, 2014).…”

Section: Somniosidaementioning

confidence: 99%

“…Frequency of occurrence: Green (common) Record for Azores in FAO Fish Finder (Ebert and Stehmann, 2013): No Depth range (Ebert and Stehmann, 2013): 380-1,250 m Gear susceptibility: Bottom longlines Local primary literature where species appears: (Menezes et al, 2006(Menezes et al, , 2012Fossen et al, 2008;Menezes and Giacomello, 2013).…”

Section: Pentanchidaementioning

confidence: 99%

“…• Scientific fishing surveys using bottom longlines carried out by the Department of Oceanography and Fisheries, University of Azores (DOP/UAz), Horta (Menezes et al, 2006(Menezes et al, , 2012Menezes and Giacomello, 2013;Menezes, 2014) around the nine islands and important seamounts in the Azores EEZ; • The MAR-ECO project by the Census of Marine Life (Fossen et al, 2008;Wenneck et al, 2008), using vertical and bottom longlines deployed within the regional EEZ limits; • An exploratory fishing survey of orange roughy (Hoplostethus atlanticus) in the Azores using trawl fishing (Melo and Menezes, 2002), important for species not caught using longlines; • Underwater visual census conducted by researchers of the Institute of Marine Research (IMAR-University of the Azores) each year in the shallow-water areas around the islands and offshore seamounts Schmiing et al, 2013;Afonso, unpublished data).…”

Section: Checklistmentioning

confidence: 99%

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Review of the Diversity, Ecology, and Conservation of Elasmobranchs in the Azores Region, Mid-North Atlantic

Das

Afonso

2017

Front. Mar. Sci.

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A vulnerable species group, such as, the elasmobranchs, in a data-deficient context presents a complicated management problem. Evidence suggests that the Azores islands, a remote archipelago on the Mid-Atlantic Ridge, serve essential functions in the life-history of species across taxa. The diversity of marine resources within its EEZ are exploited by local to international fleets, and the full extent of fishing pressure can often be underestimated. Although sharks and rays appear to be of minor importance in the fishery, the possibilities of illegal, unreported, and unregulated fishing raises concerns about these threatened species. However, this group has failed to attract management attention, visible in the lack of regional studies focused on biodiversity, ecology, or threats of elasmobranchs. Our work attempts to review and update the information on elasmobranchs of the Azores and identify potential threats, mainly by the local fisheries. We aim to highlight knowledge gaps that require further research and conservation actions. We (1) update the annotated checklist of elasmobranch species, (2) compare species distribution across a biogeographically similar section of the North Atlantic, and (3) analyze the interaction of elasmobranch species with local fisheries. We confirm 61 chondrichthyan species for the Azores (39 sharks, 17 rays, and 5 chimaeras), adding 19 species to the previous annotated checklist of 1997. The Azores elasmobranch species assemblage most resembles Madeira, the neighboring Macaronesian archipelago. Biogeographic affinities between the chosen regions of the North Atlantic are reflected in the taxonomic structure of families. Although underestimated in the local fisheries, elasmobranchs constitute a regular but highly variable portion of total landings. Misreporting and misidentification is perhaps the greatest concern in the local fisheries records, further aggravated by few existing catch regulations for elasmobranchs. Local knowledge indicates that the Azores serves as essential habitat for at least a few species in coastal areas and shallow seamounts, and potentially so for a number of deep-sea elasmobranchs. The intersection of fishery threats and local essential habitat functions around the archipelago warrants greater research effort and studies.

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“…A nivel mundial, algunas comunidades de peces demersales de aguas profundas son objeto de pesca comercial (Koslow et al 2001, Gordon et al 2003 y en muchos casos el conocimiento científico sobre ellas es escaso, se requiriere información a nivel de ecosistema y biología poblacional, con la finalidad de llegar a un manejo sustentable de estos recursos (Koslow et al 2001, Gordon et al 2003, Fossen et al 2008.…”

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Composición taxonómica y aspectos zoogeográficos de peces de profundidad (90-540m) del Golfo de California, México.

López‐Martínez

Acevedo-Cervantes²,

Herrera-Valdivia

et al. 2012

RBT

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Taxonomic composition and zoogeographical aspects of deep sea fishes (90-540m) from the Gulf of California, Mexico. The Gulf of California has a high variety of ecosystems that allow different services and the fishery resources play a prominent role in its ecology, evolution and economics. Fish coastal species have been previously reported for most coastal areas, especially those species that are subject to fishing, however, little is known on the species from deep sea zones, due to sampling difficulties. We studied the deep sea fishes collected with trawl nets during three research surveys in the Gulf of California, Mexico in 2004-2005. We provide a systematic checklist and some notes on biogeographical aspects. For this, 74 fishing hauls were done, and a total of 9 898 fishes were captured, belonging to two classes, 15 orders, 35 families, 53 genera and 70 species. The best represented families in number of species were: Paralichthyidae (eight), Serranidae (six), and Scorpaenidae and Triglidae with five species each one. The typical families from deep waters were: Ophidiidae, Moridae, Lophiidae, Scorpaenidae, Triglidae, Paralichthydae, Pleuronectidae and Cynoglossidae. Size range varied from 13cm for the Splinose searobin (Bellator xenisma) to 234cm in the Pacific Cutlassfish (Trichiurus nitens). The biogeographical affinity showed that species with affinity to the East Tropical Pacific (ETP) dominated, followed by species from San Diego-Panamic, San Diego-Panamic-Peruvian-Chilean and Oregonian-Cortes provinces, respectively. A biogeographic overlap was found in the fauna, which reflects the Gulf of California's geographical position, with distribution limits of species from temperate, tropical and warm-temperature transition affinities, divisions that characterize the Gulf of California. Taxonomic status of fish with a focus on composition, location, characterization and zoogeography are fundamental to any subject of biodiversity and fisheries management actions. Rev. Biol. Trop. 60 (1): 347-360. Epub 2012 March 01.

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Species composition and distribution patterns of fishes captured by longlines on the Mid-Atlantic Ridge

Cited by 47 publications

References 23 publications

Biodiversity Patterns and Processes on the Mid‐Atlantic Ridge

Biodiversity Patterns and Processes on the Mid‐Atlantic Ridge

Review of the Diversity, Ecology, and Conservation of Elasmobranchs in the Azores Region, Mid-North Atlantic

Composición taxonómica y aspectos zoogeográficos de peces de profundidad (90-540m) del Golfo de California, México.

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