Modeling sensitive parrotfish (Labridae: Scarini) habitats along the Brazilian coast

Roos, Natalia; Carvalho, Adriana Rosa; Lopes, Priscila F. M.; Pennino, María Grazia

doi:10.1016/j.marenvres.2015.08.005

Cited by 35 publications

(30 citation statements)

References 49 publications

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“…Functional responses were plotted using "ggplot2" package 36 in R software. In addition to the benthic cover, five environmental variables were also considered as potential predictors of juveniles' distribution 37 : Sea Surface Temperature (SST in °C) and Sea Surface Salinity (SSS in PSU), depth (in meters), rugosity (low = 0 vs high = 1) and distance to land (in meters; details in Supplementary Methods: Environmental variables).…”

Section: Fish and Benthic Surveysmentioning

confidence: 99%

Protecting nursery areas without fisheries management is not enough to conserve the most endangered parrotfish of the Atlantic Ocean

Roos

Longo

Pennino

et al. 2020

Sci Rep

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Marine protected areas (MPAs) are a primary strategy for marine conservation worldwide, having as a common goal the protection of essential habitats to enhance fish population recovery. However, MPAs alone may not be effective because species are not isolated from critical impacts occurring outside their boundaries. We evaluated how protecting critical nursery habitats affect the population of an important fishing target, using a 6-year database to predict juvenile hotspots and estimate population trends of the endemic and endangered parrotfish Scarus trispinosus within a mosaic of MPAs at the Abrolhos Bank, NE Brazil. We found that important nursery habitats are within no-take areas, but both juvenile and adult populations still show a declining trend over time. MPAs failed to ensure population maintenance and recovery likely due to overfishing in adjacent areas and the lack of compliance to management rules within multiple-use and within no-take MPAs. MPAs alone are not enough to protect ecologically important endangered species, but is still one of the only conservation strategies, particularly in developing countries. Our results shed light on the need for a wider adoption of more effective conservation policies in addition to MPAs, both in Brazil and in countries with similar governance contexts.

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Section: Fish and Benthic Surveysmentioning

confidence: 99%

Protecting nursery areas without fisheries management is not enough to conserve the most endangered parrotfish of the Atlantic Ocean

Roos

Longo

Pennino

et al. 2020

Sci Rep

Self Cite

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show abstract

“…The Integrated Nested Laplace Approximation (INLA) methodology (Rue et al 2009) and software (http:\\www.r-inla.org), which is implemented in the R software (R Development Core Team, 2015), were used as an alternative to the Markov chain Monte Carlo methods for speed of calculation (Roos et al 2015).…”

Section: Discussionmentioning

confidence: 99%

Ecology of the Atlantic black skipjack Euthynnus alletteratus (Osteichthyes: Scombridae) in the western Mediterranean Sea inferred by parasitological analysis

et al. 2016

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Between 2008 and 2011, the head of 150 Euthynnus alletteratus (Osteichthyes: Scombridae) caught inshore off the southeastern Iberian coast (western Mediterranean Sea) were examined for parasites. Two monogeneans, four didymozoid trematodes and four copepods were found. Parasite abundance showed a positive relationship with the annual sea surface temperature, except for Pseudocycnus appendiculatus, but negative with the sea depth (Capsala manteri, Neonematobothrium cf. kawakawa and Caligus bonito). Prevalences and mean abundances differed significantly among sampling areas, except for C. manteri, Oesophagocystis sp. 2 and Ceratocolax euthynni, and sampling years (Melanocystis cf. kawakawa, N.cf. kawakawa, P. appendiculatus and Unicolax collateralis). Results indicate that the parasite abundances of E. alletteratus in the western Mediterranean Sea depend mainly on regional environmental variables, which can show interannual variations. The presence of pelagic parasites, i.e. didymozoids and P. appendiculatus, could indicate that E. alletteratus migrates between inshore and offshore pelagic domains. The different parasite faunas reported in E. alletteratus populations from the western Atlantic Ocean and the Mediterranean Sea appear to point out the geographical host isolation. These results suggest that E. alletteratus inhabiting the western Mediterranean Sea performs inshore-offshore small-scale migrations, and not transoceanic migrations between the western Atlantic Ocean and Mediterranean Sea.

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“…First, the strategy depends on the quality of reef habitats outside MPAs for stocks recovery, which are usually more degraded than managed areas. For instance, although parrotfishes are distributed along the whole Brazilian coast (Roos et al, 2015), inside and outside MPAs, they show the highest biomass in isolated or protected sites (Morais et al, 2017), what reduces the "spill in" potential. Some of the Brazilian oceanic islands sustain apparently isolated populations which demands specific management (Guabiroba et al, 2020) and would not function as source for coastal populations.…”

Section: Caveats and Recommendationsmentioning

confidence: 99%

An Inverted Management Strategy for the Fishery of Endangered Marine Species

et al. 2021

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Overfishing is notorious for triggering population collapses and disrupting marine biological functioning worldwide. To counter such a threat, policy-makers have created and implemented multiple management strategies, but most were incapable to prevent the decline of several key species. Here, we discuss a new management strategy in force since June 2019 in Brazil that aims to deter the overfishing of parrotfish species of the genera Scarus and Sparisoma. This innovative strategy, here referred to as inverted management, allows the capture of endangered parrotfish species inside management areas, such as partially protected marine areas—MPAs, but bans it elsewhere. This initiative is supposed to be built in a partnership among the government, scientists, managers, and fishers. If implemented correctly, endangered species would recover in the much larger area outside MPAs, and fishers would benefit from the conservation-value of the scarce and valued product. However, to succeed, the strategy depends on the adoption of a series of challenging management rules that are not currently being enforced along an extensive coastline. So far, few MPAs have incorporated rules for endangered species in their management plan, and those that have done so have no plans or the means to enforce them. Therefore, fishing of endangered species is currently ongoing without any management or monitoring in the entire Brazilian coast. Concerned with the challenges to develop plans to recover populations of endangered species faced by Brazilian managers, we suggest wide communication and a ban on the fisheries until management plans are implemented. Additionally, we suggest that the effectiveness of the inverted management strategy for parrotfishes should be assessed before it’s applied to other endangered species.

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Modeling sensitive parrotfish (Labridae: Scarini) habitats along the Brazilian coast

Cited by 35 publications

References 49 publications

Protecting nursery areas without fisheries management is not enough to conserve the most endangered parrotfish of the Atlantic Ocean

Protecting nursery areas without fisheries management is not enough to conserve the most endangered parrotfish of the Atlantic Ocean

Ecology of the Atlantic black skipjack Euthynnus alletteratus (Osteichthyes: Scombridae) in the western Mediterranean Sea inferred by parasitological analysis

An Inverted Management Strategy for the Fishery of Endangered Marine Species

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