Distribution and ontogenetic habitat shifts of reefassociated shark species in the northeastern Caribbean

Stoffers, T.; Graaf, M. de; Winter, H.V.; Nagelkerke, L.A.J.

doi:10.3354/meps13688

Cited by 3 publications

(2 citation statements)

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“…Most data were obtained from the Floridian ecoregion ( N = 13; Gilmore et al, 1977 ; Smith & Herrkind, 1992 ; Carrier & Pratt, 1998 ; Castro, 2000 ; Wiley & Simpfendorfer, 2007 ; Pratt & Carrier, 2007 ; Adams & Paperno, 2007 ; Ward-Paige et al, 2010 ; Hannan et al, 2012 ; Pratt et al, 2018 ; Rangel, Hammerschlag & Moreira, 2021 ; Gutowsky et al, 2021 ; Tinari & Hammerschlag, 2021 ), followed by surrounding ecoregions, the Bahamian ( N = 5; Hansell et al, 2018 ; Shipley et al, 2018 ; Ward-Paige et al, 2010 ; Bruns & Henderson, 2020 ; Lennon & Sealey, 2021 ), and Western Caribbean ( N = 4; Eggleston & Lipcius, 1992 ; Chapman et al, 2005 ; Pikitch et al, 2005 ; Ward-Paige et al, 2010 ). There was also data from Northeastern Brazil ( N = 3; Ferreira et al, 2013 ; Afonso, Andrade & Hazin, 2014 ; Niella, Hazin & Afonso, 2017 ), Fernando de Noronha and Atoll das Rocas ( N = 3; Garla et al, 2009 ; Garla, Garrone-Neto & Gadig, 2014 ; Afonso et al, 2016 ), Eastern Caribbean ( N = 3; Smith-Vaniz, Jelks & Rocha, 2006 ; DeAngelis et al, 2008 ; Stoffers et al, 2021 ), and Guianan ( N = 1; Springer, 1950 ) ecoregions ( Fig. 3A ).…”

Section: Resultsmentioning

confidence: 95%

“…The habitat of neonates was addressed in only two studies ( Pratt & Carrier, 2007 ; Garla et al, 2009 ; Garla, Garrone-Neto & Gadig, 2014 ), with occurrences in reefs, rocky, macroalgae, sandy, and seagrass at a maximum depth of 20 m, with an average temperature of 26 °C and a salinity of 36 ppt. Adult sharks ranged from 215 to 380 TL cm and were recorded in all habitat categories ( Castro, 2000 ; Chapman et al, 2005 ; Pratt & Carrier, 2007 ; DeAngelis et al, 2008 ; Hannan et al, 2012 ; Afonso, Andrade & Hazin, 2014 ; Shipley et al, 2018 ; Hansell et al, 2018 ; Tinari & Hammerschlag, 2021 ; Stoffers et al, 2021 ) ( Fig. 5 ).…”

Section: Resultsmentioning

confidence: 99%

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Habitat-use of the vulnerable Atlantic Nurse Shark: a review

Bettcher

Franco

Santos

2023

PeerJ

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Human activities have led to the loss of critical habitats for aquatic species at such an accelerated rate that habitat modification is considered a leading threat to biodiversity. Sharks and rays are considered the second most threatened group of vertebrates that have also suffered from habitat loss, especially in nursery grounds and reef-associated species. In this sense, actions toward the conservation of critical grounds for species survival are urgently needed, especially for those threatened with extinction. This study aimed to gather and provide information on the worldwide distribution and habitat association of the ‘vulnerable’ Atlantic Nurse Shark Ginglymostoma cirratum through a literature review performed at the Dimensions research database. A total of 30 studies published between 1950 and 2021 were retained since they defined at least the type of habitat in which G. cirratum was associated. Most studies covered the Floridian ecoregion, where G. cirratum is more common and abundant. Reefs, seagrass, sandy, rocky, mangrove, and macroalgae accounted for the majority of habitat associations, with a higher diversity of habitats detected within marine protected areas (MPAs). Ginglymostoma cirratum was recorded at a maximum depth of 75 m, temperatures ranging from 25 °C to 34 °C, and salinities between 31 and 38 ppt. Neonates were associated with shallower habitats (<20 m), mostly reefs, rocks, macroalgae, sandy shores, and seagrass, in an average temperature of 26 °C and salinity of 36 ppt. Breeding events and habitats were reported by 11 studies, 72.7% of them in shallow waters, mostly inside MPAs (90.9%). Our findings highlighted the key role played by MPAs in protecting essential grounds for threatened species, such as the Atlantic Nurse Shark. Major ecoregions (e.g., the Eastern Atlantic) are still underrepresented in the scientific literature as long as studies aim specifically to assess G. cirratum habitat association. Thus, further insights into the essential habitats needed to conserve the Atlantic Nurse Shark can still emerge from future studies. Considering the recent IUCN extinction risk status change in G. cirratum (i.e., Data Deficient to ‘Vulnerable’), new conservation measures that integrate habitat protection and management are urgently needed and should consider the data collected herein.

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Section: Resultsmentioning

confidence: 95%

Section: Resultsmentioning

confidence: 99%

Habitat-use of the vulnerable Atlantic Nurse Shark: a review

Bettcher

Franco

Santos

2023

PeerJ

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Estimated life-history traits and movements of the Caribbean reef shark (Carcharhinus perezi) in The Bahamas based on tag-recapture data

et al. 2022

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Divergent learning responses to a spatially consistent olfactory stimulus in two reef shark species

Kilfoil,

Krohn,

Clua

et al. 2024

Mar. Ecol. Prog. Ser.

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There is growing evidence of the important role learning plays in shark foraging, but few studies have examined the relationship between learning and foraging behavior in free-living settings. We addressed this knowledge gap by experimentally contrasting responses of blacktip reef Carcharhinus melanopterus and sicklefin lemon Negaprion acutidens sharks to an olfactory-only feeding stimulus—baited remote underwater video stations (BRUVS)—that was either spatially randomized (as a control) or offered repeatedly at the same location in the lagoon of Tetiaroa, French Polynesia. Relative to their response to the randomized BRUVS, blacktip reef sharks appeared to sensitize to the repeated treatment, exhibiting increasing relative abundance upon introduction of the cue (maximum number of individuals of a species observed on any frame of a video [MaxN] at deployment) and decreasing arrival times as the experiment progressed. By contrast, sicklefin lemon shark responses were either consistent across control and treatment BRUVS over time or suggested habituation (as evidenced by declining MaxN in response to the spatially repeated exposure). Accordingly, our findings advance our understanding of shark cognition by highlighting that sensitized learning responses to stable feeding cues can develop even when the olfactory attractant is not accompanied by a reward, while also indicating that shark responses to these cues can be species-specific. They also suggest that, for at least some shark species, olfactory cues alone could lead to learned responses that confound non-invasive efforts to monitor shark populations and communities (e.g. with BRUVS) and drive spatial behavior with the potential to affect both ecotourism and negative human-shark interactions.

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Distribution and ontogenetic habitat shifts of reefassociated shark species in the northeastern Caribbean

Cited by 3 publications

References 73 publications

Habitat-use of the vulnerable Atlantic Nurse Shark: a review

Habitat-use of the vulnerable Atlantic Nurse Shark: a review

Estimated life-history traits and movements of the Caribbean reef shark (Carcharhinus perezi) in The Bahamas based on tag-recapture data

Divergent learning responses to a spatially consistent olfactory stimulus in two reef shark species

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