Demersal fish community diversity off New Zealand: Is it related to depth, latitude and regional surface phytoplankton?

McClatchie, Sam; Millar, Russell B.; Webster, Ferris; Lester, Philip J.; Hurst, Rosemary J.; Bagley, Neil W.

doi:10.1016/s0967-0637(96)00096-9

Cited by 80 publications

(63 citation statements)

References 32 publications

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“…The Alborán Sea has an unusual high primary production in comparison to other neighbouring Mediterranean areas, as can be observed based on satellite imagery. This feature may support a similar conclusion to that discussed for deep fish communities off New Zealand (McClatchie et al, 1997).…”

Section: Discussionsupporting

confidence: 88%

“…An extrapolation of this hypothesis at a "horizontal" spatial scale may explain why only fish, situated in a higher TL than decapods, showed geographical changes in the composition of their trophic guilds. Changes in deepdemersal fish communities at similar spatial scales as ours have been already documented off New Zealand (McClatchie et al, 1997), correlated to regional changes in surface phytoplankton production, while bottom subtratum is also important in the distribution of continental shelf and upper slope fish assemblages off the Catalan coasts (Demestre et al, 2000). The Alborán Sea has an unusual high primary production in comparison to other neighbouring Mediterranean areas, as can be observed based on satellite imagery.…”

Section: Discussionsupporting

confidence: 81%

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Feeding guilds of western Mediterranean demersal fish and crustaceans: an analysis based in a spring survey

et al. 2002

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SUMMARY: The MEDITS-99 sampling was performed along all the Iberian Peninsula coasts of the western Mediterranean (from the Alborán Sea to Cape Creus) in a space-scale of 1000 Km N-S, at depths ranging between 27-790 m. Fish and decapod crustaceans were dominant in the megafaunal compartment sampled by trawling. Based on both the fish and the decapod crustacean compositions, a comparison of trophic guilds has been attempted, with fish and decapods classified as: 1) migrator macroplankton feeders (mM), 2) non-migrator macroplankton feeders (nmM), 3) nektobenthos-suprabenthos feeders (NS), 4) epibenthos feeders (Epib), 5) large detritus-scavengers (Sca), 6) infaunal feeders (Inf), 7) deposit feeders (Dep) and 8) small detritivorous feeders (Det). Multivariate techniques showed the following differences in the trophodynamics of the megafaunal assemblages along the coasts of the Iberian Peninsula: 1) crustaceans (mainly decapods) have different trophic structures on the shelf and on the slope; 2) on the slope, fish exhibited more clear changes as a function of the geographical gradient than crustaceans; and 3) trophodynamics of bathyal fish showed some geographic variations between the Alborán Sea, the Catalano-Balearic Basin, and the Algerian Basin (Vera Gulf and Alicante sectors), with a progressive north-south increase in planktophagous species.Key words: feeding guilds, demersal fish, decapod crustaceans, western Mediterranean, trawl survey, Mediterranean. turnovers than shallow-water or littoral systems and their carrying capacity is expected to be lower. Since most of the target species are slow growing, overexploitation can be detected in deep-sea fisheries only after some years or decades after the beginning of a fishery (Atkinson, 1994;Bowering and Brodie, 1994;Koslow, 1997).In addition to indices such as abundance, or harvest-induced mortality (Hutchings and Myers, 1994), to quantify changes and the impact in the carrying capacity of a system, trophodynamic aspects can be studied (Petersen and Curtis, 1980;Robinson and Ware, 1994; Christensen, 1995, among others). Trophodynamic studies constitute the base of massbalance models (i.e ECOPATH models), which have increasingly been considered for the study and management of marine ecosystems (Robinson and Ware, 1994;Wolff, 1994;Christensen, 1995;Pauly and Christensen, 1995). In practice, however, great difficulties exist in developing such models in deepwater systems, because only scarce data have been published on important quantitative aspects such as secondary production (Cartes and Sorbe, 1999;Cartes et al., 2000), and daily rations (Maynou and Cartes, 1997;1998;, with only some preliminary trophic balances constructed for the mid-slope depths . Trophodynamic studies in deep-sea systems have often focused on species of commercial interest (Macpherson, 1985;Bulman and Koslow 1992, Maynou andCartes 1997), whereas by-catches and studies on the lowest trophic levels, i.e. those compartments that sustain the trophic webs and fisheries, have received, in general...

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Section: Discussionsupporting

confidence: 88%

Section: Discussionsupporting

confidence: 81%

Feeding guilds of western Mediterranean demersal fish and crustaceans: an analysis based in a spring survey

et al. 2002

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“…Deep-sea communities have been described in a number of works, both from a faunistic and community structure perspective (Haedrich et al 1980, Jumars & Gallagher 1982, Hecker 1990, McClatchie et al 1997, and references cited therein). Deep-water communities have received increasing attention because of the interest in new fishing grounds and fisheries at bathyal depths (Hopper 1994, Merrett & Haedrich 1997.…”

Section: Introductionmentioning

confidence: 99%

Trophic structure of a bathyal benthopelagic boundary layer community south of the Balearic Islands (southwestern Mediterranean)

Cartes

Maynou²,

Morales‐Nin³

et al. 2001

Mar. Ecol. Prog. Ser.

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During 2 deep-sea oceanographic cruises carried out in October 1996 and May 1998, megafauna (fish and decapod crustaceans), suprabenthos, zooplankton, and environmental variables from the water column (fluorescence and light transmission) were simultaneously collected between 210 and 1752 m depth. Fish were the dominant megafaunal taxon in biomass along the slope; decapod crustaceans were co-dominants at intermediate depths (between 402 and 710 m). Suprabenthos and zooplankton attained their maximal biomass at intermediate depths, with deeper maxima detected for suprabenthos (between 802 and 1322 m) than for zooplankton (between 402 and 802 m). Fish and decapod biomass were weakly correlated with each other, and with the suprabenthoszooplankton biomass, fluorescence and light transmission. Significant correlations were, however, detected between the suprabenthos and zooplankton and their possible food-sources deduced from fluorometer and light transmission data, with different patterns depending on the distribution of each compartment (trophic level) in the water column and the sediment-water interface. Within a single taxon (crustaceans), size distribution for suprabenthos-zooplankton and megafaunal species followed opposite temporal patterns in our study. Among suprabenthos-zooplankton species, smaller specimens (recruitment) were detected in October 1996, coinciding with the highest fluorometer signals in the water column. The dominant phytoplankton/phytodetritus consumers (the euphausiid Euphausia krohni and the mysid Boreomysis arctica) showed clearer recruitment peaks during October than those species preying upon meiofaunal taxa (the amphipod Rhachotropis caeca, and the isopod Munnopsurus atlanticus). These results suggest that the influence of food input signals progressively decreases with increasing trophic level, and therefore the indirect effect of superficial production on top trophic levels is difficult to establish at least for the short time scales of our oceanographic surveys.

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“…Previous studies have shown that rockfish prefer sloping terrain (McClatchie et al 1997) and it is clear from these results that Cordell Bank offers a substantial amount of potential habitat with the majority of the bank classified as sloping.…”

Section: Evaluation Of Modeling Methodsmentioning

confidence: 72%

“…Slope and aspect rasters were derived from the bathymetric DEM using the ArcGIS Spatial Analyst extension. Slope values were expected to serve as good predictors of fish presence or absence because areas of high slope are believed to be associated with consistently greater densities of fish than less sloping areas (McClatchie et al 1997). Aspect, or the compass direction that a slope faces, was chosen as a potential predictor of rockfish abundance because the aspect of the slope relative to prevailing ocean current direction may influence food availability, recruitment and habitat suitability.…”

Section: Methodsmentioning

confidence: 99%

Multivariate bathymetry-derived generalized linear model accurately predicts rockfish distribution on Cordell Bank, California, USA

Young

Iampietro²,

Kvitek³

et al. 2010

Mar. Ecol. Prog. Ser.

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Accurate efficient estimation of actual and potential species distribution is a critical requirement for effective ecosystem-based management and marine protected area design. In this study we tested the applicability of a terrestrial landscape modeling technique in a marine environment for predicting the distribution of ecologically and economically important groundfish, using 3 species of rockfish at Cordell Bank National Marine Sanctuary (CBNMS) as a model system. Autoclassification of multibeam bathymetry along with georeferenced submersible video transect data of the seafloor and demersal fishes were used to model the abundance and distribution of rockfish. Generalized linear models (GLMs) were created using habitat classification analyses of high-resolution (3 m) digital elevation models combined with fish presence/absence observations. Model accuracy was assessed using a reserved subset of the observation data. The resulting probability of occurrence models generated at 3 m resolution for the entire 120 km 2 study area proved reliable in predicting the distribution of all the species. The accuracies of the models for Sebastes rosaceus, S. flavidus and S. elongatus were 96, 92 and 92%, respectively. The probability of occurrence of S. flavidus and S. rosaceus was highest in the high relief rocky areas and lowest in the low relief, soft sediment areas. The model for S. elongatus had an opposite pattern, with the highest predicted probability of occurrence taking place in the low relief, soft sediment areas and a lower probability of occurrence in the rocky areas. These results indicate that site-specific and species-specific algorithmic habitat classification applied to high-resolution bathymetry data can be used to accurately extrapolate the results from in situ video surveys of demersal fishes across broad areas of habitat.KEY WORDS: Ecosystem-based management · Rockfish · Groundfish · GLMs · Marine protected area · Fishery management Resale or republication not permitted without written consent of the publisherMar Ecol Prog Ser 415: [247][248][249][250][251][252][253][254][255][256][257][258][259][260][261] 2010 Traditional methods of distributional estimates have typically relied upon broad extrapolation from narrowly constrained or sparse data sets, or very costly intense sampling efforts carried out over broad areas (Margules & Austin 1991, Li & Hilbert 2008. However, because the selection of habitats by organisms is nonrandom (Rhodes et al. 2005), habitat conditions important to the occurrence of a species can be used to predict their distribution and aid in the development of management plans (Fernandez et al. 2003).In terrestrial environments, spatially explicit habitat suitability modeling has emerged as an efficient tool for generating accurate patterns and predictions of species abundance and distribution (Austin et al. 1994, Rotenberry et al. 2006, Kleinwachter & Rickfelder 2007, Valavanis et al. 2008. The integration of recent advancements in GIS software , Rotenberry et al. 2006)...

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Demersal fish community diversity off New Zealand: Is it related to depth, latitude and regional surface phytoplankton?

Cited by 80 publications

References 32 publications

Feeding guilds of western Mediterranean demersal fish and crustaceans: an analysis based in a spring survey

Feeding guilds of western Mediterranean demersal fish and crustaceans: an analysis based in a spring survey

Trophic structure of a bathyal benthopelagic boundary layer community south of the Balearic Islands (southwestern Mediterranean)

Multivariate bathymetry-derived generalized linear model accurately predicts rockfish distribution on Cordell Bank, California, USA

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