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Sadovy, Yvonne; Mitcheson, George R.; Rasotto, Maria Berica

doi:10.1023/a:1013168029479

Cited by 26 publications

(5 citation statements)

References 11 publications

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“…For example, the Banggai cardinalfish was one of the most vulnerable stocks in the analysis due to low fecundity, a breeding strategy (male mouth brooding) that involves considerable parental care and limited dispersal of offspring, endemism within the Banggai Archipelago of Indonesia, areal and depth overlap between the fishery and species distribution, and aggregation behavior that facilitates capture (Kolm and Berglund, 2003). By comparison, Mandarinfish, S. splendidus, had a high productivity score (2.73) yet scored as relatively vulnerable due to high susceptibility from injurious collection methods (needle-spear fishing) and a specialized diet that increases chances that individuals starve in captivity, driving further collection (Sadovy et al, 2001;Gonzales and Savaris, 2005;Michael, 2005). As a final example, the Harlequin sweet lips, P. chaetodonoides, scored among the most vulnerable stocks due to its slow growth rate, high trophic level, as well as its large size and unappealing appearance as adults which requires a high level of expertise to keep in home aquariums.…”

Section: Resultsmentioning

confidence: 99%

“…Consistent with previous reports, the Banggai cardinalfish (P. kauderni), Mandarinfish (S. splendidus), Maroon clownfish (P. biaculeatus), and Amphiprion spp. were also among the most vulnerable stocks in the relative rankings (Table 1; Edwards and Shepherd, 1992;Sadovy et al, 2001;Kolm and Berglund, 2003;Shuman et al, 2005;Okemwa et al, 2016). Notably several popular, vulnerable species, including P. kauderni, S. splendidus, P. biaculeatus, and other Amphiprion spp., have aquacultured alternatives but wild collection and import continues (according to trade data from Rhyne et al, 2015Rhyne et al, , 2017.…”

Section: Discussionmentioning

confidence: 98%

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Assessing Vulnerability of Fish in the U.S. Marine Aquarium Trade

et al. 2019

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The trade in coral reef fishes for aquariums encompasses over 1,800 species from over 40 exporting countries, yet the population status for most traded species is unknown and unevaluated. At the same time, these coral reef fishes face a growing number of threats and often occur in jurisdictions with limited management capacity and data. In response, we assess vulnerability to overfishing for 72 coral reef fishes popular in the aquarium trade for the United States-the top importer-from the top exporting countries (Indonesia and the Philippines). We use a data-limited assessment approach: productivity susceptibility analysis (PSA). PSA estimates relative vulnerability of species by assessing their biological productivity and susceptibility to overfishing. The most and least vulnerable stocks were differentiated by attributes related to the reproductive biology (e.g., breeding strategy, recruitment pattern, and fecundity), appropriateness, for an average home aquarium, ease of capture (e.g., schooling and aggregation), and rates of natural mortality. Our analysis identifies several of the most and least vulnerable species popular in the aquarium fish trade. The species that ranked as least vulnerable to overcollection were Gobiodon okinawae, Nemateleotris magnifica, Gobiodon acicularis, Salarias fasciatus, Ptereleotris zebra, Gobiodon citrinus, Pseudocheilinus hexataenia, Chaetodon lunula, Nemateleotris decora, and Halichoeres chrysus. In contrast, the ten most vulnerable species were Chromileptes altivelis, Plectorhinchus chaetodonoides, Pterapogon kauderni, Premnas biaculeatus, Echidna nebulosa, Centropyge bicolor, Zebrasoma veliferum, Pomacanthus semicirculatus, Zebrasoma scopas, and Thalassoma lunare. In a data-limited context, we suggest how these vulnerability rankings can help guide future efforts for reducing vulnerability risk. In particular, species that are relatively high-vulnerability are prime targets for research and aquaculture efforts, increased monitoring of collection and exports, species-specific stock assessments, and voluntary reductions by retailers and consumers to avoid overexploitation.

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Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 98%

Assessing Vulnerability of Fish in the U.S. Marine Aquarium Trade

et al. 2019

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“…Although coastal communities with few reliable income sources can derive earnings by harvesting for the aquarium trade (Tlusty, 2002;Monticini, 2010;Teitelbaum et al, 2010), such fisheries can adversely affect the ecosystems on which they rely (Bruckner, 2000). These fisheries are often highly selective, targeting particular species, sexes, sizes and colours of organisms (Sadovy, Mitcheson & Rasotto, 2001;Stevenson, Tissot & Dierking, 2011;Rhyne et al, 2012). Overharvesting of target species has caused localized population reductions and extinctions, negatively affecting the reproductive potential of target organisms, and destructive fishing practices have led to the degradation of habitats (Tissot & Hallacher, 2003;Shuman, Hodgson & Ambrose, 2005;de Gurjão & da Cruz Lotufo, 2018).…”

Section: Introductionmentioning

confidence: 99%

Sea anemones in the marine aquarium trade: Market preferences indicate opportunities for mariculture and conservation

Fraser

Mangubhai

Hall

et al. 2021

Aquatic Conservation

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1. Marine aquarium organisms represent some of the highest value products that can be harvested from coral reefs. Collection is extremely selective, and sea anemones are often targeted, leading to reduced densities and localized extinctions in some locations. Currently, there is a lack of information about species' popularity and survival in captivity, and consumer attitudes towards sustainability.2. This study surveyed aquarists and businesses (n = 445) from 39 countries between February and October 2018 to help fill these knowledge gaps. 3. Respondent groups indicated similar preferences. The three most desired species were Entacmaea quadricolor, Stichodactyla tapetum and Heteractis magnifica. Size preferences for anemones were typically smaller (tentacle crown diameter of 100-200 mm) than their maximum sizes. Survival time in captivity was generally 12 months or longer, and 20% lived more than 10 years.

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“…The species can reach 90 mm in total length, and feeds on tiny crustaceans (Debelius and Baensch 1994). The species has a short larval duration among pelagic-spawning species, of about 14 days (Sadovy et al 2001). The color pattern is the same in both sexes with males reported to attain larger maximum sizes than females and exhibiting sexual dimorphism in their anterior dorsal fin (Myers 1999).…”

mentioning

confidence: 99%

“…The color pattern is the same in both sexes with males reported to attain larger maximum sizes than females and exhibiting sexual dimorphism in their anterior dorsal fin (Myers 1999). It mates, in pairs, at consistently used sites on the reef following elaborate fin displays by courting males (Sadovy et al 2001;Rasotto et al 2010).…”

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confidence: 99%

Mating system in a small pelagic spawner: field case study of the mandarinfish, Synchiropus splendidus

Mitcheson

Rasotto

2022

Environ Biol Fish

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Mating systems in fishes are extremely diverse, ranging from monogamy to multiple polygamous forms, some of which include alternative male mating tactics within species. The major reproductive mode across approximately 33,000 bony fishes is pelagic-spawning with external fertilization. Despite the dominance of this mode, it is relatively little studied in the field because the greater mobility of larger species typically makes individuals difficult to follow for extensive periods, or to catch and mark. However, smaller, more sedentary pelagic spawners provide excellent opportunities to examine mating system variability in response to environmental conditions. The mandarinfish, Synchiropus splendidus, is a small sedentary pelagic spawner which is accessible to divers. Its complex body markings are distinctive and variable allowing individuals to be identified and followed repeatedly without the need for capturing and marking fish. In over 400 h of underwater surveys, we recorded movements, inter- and intra-sexual behaviors, sex ratios, and the timing and duration of spawning activity of focal fish in predetermined study areas. We concluded that the mandarinfish has a polygamous mating system with pair-spawning. Females are sequentially polyandrous, spawning once nightly or not at all, while males are polygynous, spawning up to 8 times a night. Males and females use loosely defined spawning sites on a daily basis and show flexibility in their tactics through differential movements according to dispersion of individuals, distances between spawning sites and temporally limited daily female receptivity. These results reveal the mandarinfish to be an excellent model species for studying small pelagic spawners in the field.

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Cited by 26 publications

References 11 publications

Assessing Vulnerability of Fish in the U.S. Marine Aquarium Trade

Assessing Vulnerability of Fish in the U.S. Marine Aquarium Trade

Sea anemones in the marine aquarium trade: Market preferences indicate opportunities for mariculture and conservation

Mating system in a small pelagic spawner: field case study of the mandarinfish, Synchiropus splendidus

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