Patterns of migration between feeding and spawning sites in a coral reef surgeonfish

Claydon, John A. B.; McCormick, Mark I.; Jones, Geoffrey P.

doi:10.1007/s00338-011-0821-8

Cited by 28 publications

(31 citation statements)

References 49 publications

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“…The timing and location could be maintained through tradition (Warner, ; ; Brown & Laland, ). This fits with the patterns displayed by C. striatus on the study reefs: individuals appear to migrate repeatedly to only one spawning site, usually the site closest to their feeding areas (Claydon et al , ); thus, adjacent sites are maintained within relative short distances of one another by different groups of individuals and spawning times are specific to each site.…”

Section: Discussionsupporting

confidence: 81%

Multispecies spawning sites for fishes on a low‐latitude coral reef: spatial and temporal patterns

Claydon

McCormick

Jones

2014

Journal of Fish Biology

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Spawning sites used by one or more species were located by intensively searching nearshore coral reefs of Kimbe Bay (New Britain, Papua New Guinea). Once identified, the spawning sites were surveyed repeatedly within fixed 5 m radius circular areas, for > 2000 h of observations ranging from before dawn to after dusk spanning 190 days between July 2001 and May 2004. A total of 38 spawning sites were identified on the seven study reefs distributed at an average of one site every 60 m of reef edge. Pelagic spawning was observed in 41 fish species from six families. On three intensively studied reefs, all 17 spawning sites identified were used by at least three species, with a maximum of 30 different species observed spawning at a single site. Spawning was observed during every month of the study, on all days of the lunar month, at all states of the tide and at most hours of the day studied. Nevertheless, the majority of species were observed spawning on proportionately more days from December to April, on more days around the new moon and in association with higher tides. The strongest temporal association, however, was with species-specific diel spawning times spanning < 3 h for most species. While dawn spawning, afternoon spawning and dusk spawning species were differentiated, the time of spawning for the striated surgeonfish Ctenochaetus striatus also differed significantly among sites. The large number of species spawning at the same restricted locations during predictable times suggests that these sites are extremely important on this low-latitude coral reef.

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Section: Discussionsupporting

confidence: 81%

Multispecies spawning sites for fishes on a low‐latitude coral reef: spatial and temporal patterns

Claydon

McCormick

Jones

2014

Journal of Fish Biology

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“…Fish were capable of recruiting very small batches as can be seen by the isolated hydrating oocytes (light gray) in this micrograph. No fish smaller than 600 mm total length had batch fecundities greater than 1 million been suggested: natal homing, learned behavior through 'spawning groups' formed at first maturity, or following the behavior of older fish (Colin 1996, Thorrold et al 2001, Claydon et al 2012. Some reef fish use deeper habitat as they age (Collins & McBride 2011).…”

Section: Spatio-temporal Spawning Diversitymentioning

confidence: 99%

Assessing reproductive resilience: an example with South Atlantic red snapper Lutjanus campechanus

Lowerre‐Barbieri¹,

Crabtree²,

Switzer³

et al. 2015

Mar. Ecol. Prog. Ser.

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We developed a conceptual model of reproductive resilience based on spatio-temporal diversity in spawning activity and the 'big old fat fecund female fish' effect, i.e., trends in reproductive traits with size and age. We chose red snapper Lutjanus campechanus as our case study, as this species is highly fecund, currently overfished, and long-lived (50+ yr). The intrinsic reproductive resilience of red snapper was assessed in terms of spawning site distribution, variability in time of spawning, and potential reproductive lifespan. To assess how age truncation might erode reproductive resilience, we evaluated the strength of the relationship between size and age and the following traits: spawning habitat, reproductive timing, batch fecundity, and egg quality. Few fish were older than 7 yr. Although younger fish occurred in a more restricted range of depths, there was no trend between size or age and depth. Spawning activity was well distributed over space and time, with actively spawning females collected at 92 of 195 sampling sites over an extended spawning season. Larger, older females exhibited longer spawning periods and higher batch fecundities, but neither greater spawning frequency nor egg dry weight. The ratio of the effective to predicted reproductive lifespan at maximum sustainable yield was 31%. Many parameters estimated in this study are common to fish reproductive studies, but we hope that integrating them into a reproductive resilience framework will help focus the need for research on the underlying relationships between reproductive traits and stock productivity.

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“…The sandy seafloor in this area has few solid substrates (e.g. concrete moorings or debris associated with the fish farms, shown in the sketch) and there were no coral reefs near the fish farms (Clarke & Warwick 1994) and the results were presented as 2-dimensional plots. The analysis of similarity (ANOSIM) permutation test was used to assess the significance of differences between locations and among times within locations (Clarke 1993).…”

Section: Multivariate Analysismentioning

confidence: 99%

“…The similarity percentage (SIMPER) procedure for the abundance data pooled over time was used to identify the contribution of individual species to differences between locations for each farm. All multivariate analyses were carried out using the PRIMER © statistical package (Clarke & Warwick 1994).…”

Section: Multivariate Analysismentioning

confidence: 99%

Wild fish aggregations around fish farms in the Gulf of Aqaba, Red Sea: implications for fisheries management and conservation

Özgül¹,

Angel²

2013

Aquacult. Environ. Interact.

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Fish farm structures attract a variety of fish species by providing solid structure, and 'free meals' in the form of uneaten feed and feces that fall from the cages. In this study, we compared the composition and abundances of wild fish populations around 2 fish farms in the Red Sea and at nearby reference locations. Fish assemblages were evaluated by SCUBA divers carrying out rapid visual censuses in August, September and October 2007. A total of 87 238 fishes, representing 39 species and 25 families and a number of trophic levels, were observed. Overall, the abundance, biomass, and diversity of wild fish were much greater at the sea cages than at the open-water reference sites, at both fish farms. It is noteworthy that 35 out of the 39 species observed at the farms were juveniles and adults of coral-reef fish species. This finding is especially interesting, considering that the nearest coral reefs were > 4 km away and reef fishes generally have small home ranges, typically <1 km. Among these, the Carangidae (5 species), Sparidae (3 species), and Pomacentridae (3 species) contributed the most to species richness. In light of strong fishing pressures in many areas, the large populations of wild fishes at the fish farms, the high availability of nourishment from artificial food pellets, and restrictions on fishing within farm lease areas, we suggest that coastal net-cage fish farms may serve as small marine protected areas.

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Patterns of migration between feeding and spawning sites in a coral reef surgeonfish

Cited by 28 publications

References 49 publications

Multispecies spawning sites for fishes on a low‐latitude coral reef: spatial and temporal patterns

Multispecies spawning sites for fishes on a low‐latitude coral reef: spatial and temporal patterns

Assessing reproductive resilience: an example with South Atlantic red snapper Lutjanus campechanus

Wild fish aggregations around fish farms in the Gulf of Aqaba, Red Sea: implications for fisheries management and conservation

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