Dynamics of Reef Fish and Decapod Crustacean Spawning Aggregations: Underlying Mechanisms, Habitat Linkages, and Trophic Interactions

Nemeth, Richard S.

doi:10.1007/978-90-481-2406-0_4

Cited by 39 publications

(46 citation statements)

References 111 publications

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“…On Bock Wall many of the fish that were present are juvenile fish and from a size perspective makes them easier prey for gape-limited lionfish (e.g., Hare and Whitfield 2003;Morris and Akins 2009), than adult conspecifics on nearby shallow reefs. Alternatively, many of these fish could have emigrated from Bock Wall when the lionfish arrived due to the aggressiveness of lionfish predation (e.g., Côté and Maljkovíc 2010) and/or a life history associated habitat change of the native fish (Nemeth 2009). Lastly, and unlike Jamaica, in [15 years of diving at the Bock Wall MCR and adjacent sites we have never observed any large scale or persistent fishing activity or fishing pots that would contribute to the loss of herbivorous fish.…”

Section: Discussionmentioning

confidence: 99%

Phase shift to algal dominated communities at mesophotic depths associated with lionfish (Pterois volitans) invasion on a Bahamian coral reef

2011

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have been assumed to be physically and biologically connected to their shallow-water counterparts, and thus may serve as refugia for important taxonomic groups such as corals, sponges, and fish. The recent invasion of the Indo-Pacific lionfish (Pterois volitans) onto shallow reefs of the Caribbean and Bahamas has had significant, negative, effects on shallow coral reef fish populations. In the Bahamas, lionfish have extended their habitat range into mesophotic depths down to 91 m where they have reduced the diversity of several important fish guilds, including herbivores. A phase shift to an algal dominated ([50% benthic cover) community occurred simultaneously with the loss of herbivores to a depth of 61 m and caused a significant decline in corals and sponges at mesophotic depths. The effects of this invasive lionfish on mesophotic coral reefs and the subsequent changes in benthic community structure could not be explained by coral bleaching, overfishing, hurricanes, or disease independently or in combination. The significant ecological effects of the lionfish invasion into mesophotic depths of coral reefs casts doubt on whether these communities have the resilience to recover themselves or contribute to the recovery of their shallow water counterparts as refugia for key coral reef taxa.

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Section: Discussionmentioning

confidence: 99%

Phase shift to algal dominated communities at mesophotic depths associated with lionfish (Pterois volitans) invasion on a Bahamian coral reef

2011

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“…For species forming spawning aggregations, two different types have been distinguished, depending on the origin of the individuals (Domeier & Colin ; Nemeth, ; Domeier, ): resident spawning aggregations draw individuals to a site within or nearby their adult home range. They usually (1) occur at a specific time of day over numerous days, (2) last only a few hours or less, (3) occur daily over an often lengthy reproductive period of the year and (4) can occur year‐round.…”

Section: Introductionmentioning

confidence: 99%

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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“…These habitats also support coral reef productivity principally due to their role as feeding habitat for predatory fish (Unsworth et al 2008). Increasingly, information on the linkages between fish communities in coastal habitats (Nagelkerken et al 2000a, Mumby et al 2004, Nakamura & Sano 2004a, Dorenbosch et al 2005, Nemeth 2009) and the role of seagrass as nursery, feeding and resting habitat for coral reef fishes (Nagelkerken et al 2000b, 2001, Horinouchi et al 2005, Mumby 2006, Nagelkerken 2009) is essential to understand the connectivity of marine habitats for conservation management purposes (Sale et al 2005).…”

Section: Introductionmentioning

confidence: 99%

Connectivity in reef fish assemblages between seagrass and coral reef habitats

Campbell¹,

Kartawijaya²,

Sabarini³

2011

Aquat. Biol.

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Coral reefs and seagrass beds form extensive shallow-water habitats, but few reports have assessed the extent to which fishes on coral reefs are segregated from or integrated with fish from seagrass habitats. To investigate this, we used visual census surveys to survey reef fish assemblages in 3 habitat types: (1) seagrass, (2) transition areas between seagrass and coral reef and (3) coral reefs, at 8 locations in an Indonesian marine protected area. Based on the density of juveniles and adults, 66 of the 212 fish species recorded were classified into 4 ecological groups: seagrass residents, generalists, nursery species and coral residents. Coral residents and nursery species were found in reef and transition habitats, seagrass residents in seagrass beds and transition habitats, and generalists showed a gradual decrease in density from coral reef to seagrass beds. In terms of reef fish density, seagrass residents and nursery species accounted for 21 and 17%, respectively, of the 66 species classified into ecological groups. Habitat segregation among life stages of some nursery species, where adults were found in a coral habitat and juveniles in seagrass, was indicative of ontogenetic shifts from seagrass to coral habitat. Segregation in the distribution of feeding groups among habitat types also occurred, with nocturnal piscivores and diurnal zoobenthivores mostly found in coral and transition habitats, while nocturnal zoobenthivores, herbivores and diurnal piscivores were mostly found in seagrass and transition habitats. These patterns differ from those reported in similar habitat types elsewhere, but overall the results support previous findings, i.e. that optimisation of predatory and resource competition mechanisms may be responsible for habitat segregation of fish species, life stages and feeding groups.

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Dynamics of Reef Fish and Decapod Crustacean Spawning Aggregations: Underlying Mechanisms, Habitat Linkages, and Trophic Interactions

Cited by 39 publications

References 111 publications

Phase shift to algal dominated communities at mesophotic depths associated with lionfish (Pterois volitans) invasion on a Bahamian coral reef

Phase shift to algal dominated communities at mesophotic depths associated with lionfish (Pterois volitans) invasion on a Bahamian coral reef

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

Connectivity in reef fish assemblages between seagrass and coral reef habitats

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