scholarly journals Long-term and spillover effects of a marine protected area on an exploited fish community

2009 ◽  
Vol 384 ◽  
pp. 47-60 ◽  
Author(s):  
B Stobart ◽  
R Warwick ◽  
C González ◽  
S Mallol ◽  
D Díaz ◽  
...  
2011 ◽  
Vol 21 (6) ◽  
pp. 564-572 ◽  
Author(s):  
Maria Cristina Follesa ◽  
Rita Cannas ◽  
Alessandro Cau ◽  
Danila Cuccu ◽  
Alice Gastoni ◽  
...  

2020 ◽  
Vol 24 (02) ◽  
pp. 279-300
Author(s):  
Ricardo Jessouroun Miranda ◽  
◽  
Ana Cláudia Mendes Malhado ◽  
Nidia Noemi Fabré ◽  
Vandick da Silva Batista ◽  
...  

2012 ◽  
Vol 93 (5) ◽  
pp. 1407-1414 ◽  
Author(s):  
G.M. Morel ◽  
J. Shrives ◽  
S.F. Bossy ◽  
C.G. Meyer

We monitored the long-term residency of reef-associated ballan wrasse and sand-dwelling rays captured at the site of a potential future Marine Protected Area (MPA: Portelet Bay, Jersey) by implanting them with small transmitters and deploying underwater receivers inside the bay. Individual fish were detected at Portelet Bay for up to 618 days, but there were species-specific differences in residency and detection patterns. Ballan wrasse were year-round residents at the study site where they exhibited distinct, rhythmic, diel, tidal and seasonal patterns of behaviour, whereas rays were occasional visitors to Portelet Bay with no discernible pattern to their visits. Results indicate relatively small MPAs (<0.5 km2) that with suitable habitat could provide effective, long-term protection for ballan wrasse, but would likely be of little conservation benefit for rays. Our findings emphasize the importance of quantifying fish movements when planning MPAs which intend to protect multi-species assemblages of coastal fishes.


2021 ◽  
Vol 19 (2) ◽  
pp. 45-59
Author(s):  
Bruce Q. Mann ◽  
Gareth L. Jordaan ◽  
Ryan Daly

Dinoperca petersi is a relatively common fish species caught in the line-fishery in KwaZulu-Natal (KZN), South Africa. Yet, little is known about the biology and ecology of this species. Movement patterns and growth rate of this species were studied based on data obtained from a long-term tag-recapture study conducted in the iSimangaliso Marine Protected Area in northern KZN between 2001-2019. Results showed that D. petersi is a highly resident species with a linear home-range size of 290-405 m. While most fish showed high site fidelity, 8.8 % of the tagged fish showed wider ranging movements of 2.4-90 km. However, only 5 fish showed movements out of no-take zones into adjacent exploited areas, suggesting limited adult spillover. Growth rate of tagged fish was found to be reasonably slow compared to other sympatric predatory reef fish with an average growth rate of 61.76 mm y–1 for smaller fish (gα = 300) and 9.58 mm y–1 for larger fish (gβ = 550). Based on these life history characteristics, options for the future conservation and management of this species are discussed.


2021 ◽  
Vol 7 ◽  
Author(s):  
Austin J. Gallagher ◽  
Oliver N. Shipley ◽  
Maurits P. M. van Zinnicq Bergmann ◽  
Jacob W. Brownscombe ◽  
Craig P. Dahlgren ◽  
...  

Marine protected areas (MPAs) have emerged as potentially important conservation tools for the conservation of biodiversity and mitigation of climate impacts. Among MPAs, a large percentage has been created with the implicit goal of protecting shark populations, including 17 shark sanctuaries which fully protect sharks throughout their jurisdiction. The Commonwealth of the Bahamas represents a long-term MPA for sharks, following the banning of commercial longlining in 1993 and subsequent designation as a shark sanctuary in 2011. Little is known, however, about the long-term behavior and space use of sharks within this protected area, particularly among reef-associated sharks for which the sanctuary presumably offers the most benefit. We used acoustic telemetry to advance our understanding of the ecology of such sharks, namely Caribbean reef sharks (Carcharhinus perezi) and tiger sharks (Galeocerdo cuvier), over two discrete islands (New Providence and Great Exuma) varying in human activity level, over 2 years. We evaluated which factors influenced the likelihood of detection of individuals, analyzed patterns of movement and occurrence, and identified variability in habitat selection among species and regions, using a dataset of 23 Caribbean reef sharks and 15 tiger sharks which were passively monitored in two arrays with a combined total of 13 acoustic receivers. Caribbean reef sharks had lower detection probabilities than tiger sharks, and exhibited relatively low habitat connectivity and high residency, while tiger sharks demonstrated wider roaming behavior across much greater space. Tiger sharks were associated with shallow seagrass habitats where available, but frequently transited between and connected different habitat types. Our data support the notion that large MPAs afford greater degrees of protection for highly resident species such as Caribbean reef sharks, yet still may provide substantial benefits for more migratory species such as tiger sharks. We discuss these findings within the context of species-habitat linkages, ecosystem services, and the establishment of future MPAs.


2013 ◽  
Vol 117 ◽  
pp. 276-283 ◽  
Author(s):  
Alexis N. Rife ◽  
Octavio Aburto-Oropeza ◽  
Philip A. Hastings ◽  
Brad Erisman ◽  
Ford Ballantyne ◽  
...  

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