Small scale temporal patterns of recruitment and hatching of Atlantic horse mackerel (L.) at a nearshore reef area

Klein, Maria; Beveren, Elisabeth Van; Diana, Rodrigues; Serrão, Ester Á.; Caselle, Jennifer E.; Gonçalves, Emanuel João; Borges, Rita Alexandra

doi:10.1111/fog.12269

Cited by 6 publications

(6 citation statements)

References 72 publications

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“…Although most studies use two weeks as standard immersion time to sample fish recruits (for example Luzier & Wilson Jr., 2004;Caselle et al, 2010;Klein et al, 2018;Ottman et al, 2017Ottman et al, , 2018Ottman et al, , 2019, some studies performed daily sampling (Valles et al, 2006) to more than two months of immersion time (Shima et al, 2012). This variation of sampling intervals often obeys the ecological and biological characteristics inherent to the species something already noted in literature (Ammann, 2004;Vallès et al, 2006).…”

Section: Discussionmentioning

confidence: 99%

Using Aggregating Devices to Sample Fish Recruits Around Deep Shipwrecks: Experiments and Suggestions

Correia

Silva

Schettini

et al. 2020

ACMAR

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Fish aggregating devices (FAD) are an ancient fishery technique that benefits from the gregarious behavior of many species. They represent alternatives to usual census approach to study fish recruits. Based on this, we test two FAD models built for fish recruitment research, Standard monitoring unit for the recruitment of reef fishes (SMURF) and Artificial Reef Mooring (ARM) moored for the first time close to deep shipwrecks inBrazil Northeastern coast. We compared fish recruits’ abundance sampled by both models at two depths, bottom and mid-water (6 meters from the bottom). SMURFs sampled seven times more fish recruits than ARM with no difference between depth. We discovered that SMURFs mooring tilted 24º in mean with local marine currents. A long-term study with SMURFs tested immersion time influence in recruit’s sampling, and explored recruit’s abundance and standard length at two depth from the bottom. Increasing immersion timefrom 14-28 days did not influence recruit’s abundance. Bottom and Mid-water SMURFs sampled equal recruit’s number and fish sizes were significantly larger at the bottom. FADs, specially SMURFs, showed good tool to sample fish recruits in deeper shipwrecks,however standardization of FAD deployment is indicated to maximize work time and security in unstable sea conditions.

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Section: Discussionmentioning

confidence: 99%

Using Aggregating Devices to Sample Fish Recruits Around Deep Shipwrecks: Experiments and Suggestions

Correia

Silva

Schettini

et al. 2020

ACMAR

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“…The recruitment patern occurring in these months is likely influenced by the annual upwelling event in the respective area (Utama et al, 2017). According to Klein et al (2018), the recruitment pattern revealed a strong relationship with the upwelling.…”

Section: Recruitment Patternmentioning

confidence: 97%

Length-based stock assessment of the pacific yellowtail emperor in the Southern Sulawesi, Indonesia

Suyasa¹,

Sari²,

Agustina³

et al. 2023

Fish Aquat Sci

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Pacific yellowtail emperor, Lethrinus atkinsoni Seale, 1910, is one of the most targeted reef fish species in Southern Sulawesi, Indonesia. Therefore, assessing its stock is important to understand the condition of the population, providing valuable inputs for sustainable fisheries management in the area. Here we assess the stock condition of L. atkinsoni in Southern Sulawesi, Indonesia, using the length-based spawning potential ratio model. A total of 4,887 individuals were collected from commercially small-scale fishers from January to October 2022. The total length, sex, and gonad maturity of the individuals were examined. We observed that the fish length ranged from 10.5 to 39.5 cm, with an average length of 23.3 cm. The sex ratio was equal (1:1.2) between male and female individuals. Length at first maturity and length at first capture were 23.4 and 19.6 cm, respectively. In addition, we observed a growth coefficient of 0.45/year, with an asymptotic length of 41.14 cm and natural mortality of 0.6/year. Based on these life history parameters, we observed the spawning potential ratio (SPR) value of 12%, indicating an unsustainable fishery level (SPR of < 30%). Further concerns related to the sustainability of the species and strategy to rebuild stock of the L. atkinsoni in Southern Sulawesi are of utmost importance.

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“…Only two of the MPAs in mainland Portugal have no-take zones defined, namely Arrábida and Sudoeste Alentejano and Costa Vicentina [4]. MPAs along the Portuguese south-western coast have been well studied, e.g., [14][15][16][17][18], while information regarding the northern-central ones is still scarce.…”

Section: Introductionmentioning

confidence: 99%

Assessing Environmental Control on Temporal and Spatial Patterns of Larval Fish Assemblages in a Marine Protected Area

et al. 2023

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The northern coast of the Iberian Peninsula is an important spawning and nursery area for several marine fish species, some of which are economically exploited by fisheries and under management plans. Larval stages of fish are highly sensitive to environmental change and anthropogenic pressures, and Marine Protected Areas (MPA) can help mitigate the impacts on fish populations. This study investigated the environmental drivers of the temporal and spatial patterns of the larval fish assemblages inhabiting a small coastal MPA along the NW Portuguese Iberian Coast. Seasonal surveys were conducted over two years at nine sampling stations distributed throughout the MPA to collect larval fish samples and water parameters. Results showed that a total of 39 different fish taxa were identified. In terms of abundance, reef-associated species, such as Parablennius gattorugine (54.6%), and marine species that use estuaries as nursery areas, such as Ammodytes tobianus (15.7%) and Clupeidae n.i. (8.8%) dominated the larval fish assemblages. The larval fish assemblages were characterized by a strong temporal pattern that, according to CCA analyses, was related to the temporal variability of water temperature, pH, chlorophyll α, TPM, and also the river flow of an adjacent river. This study showed that 47% of the fish larvae belonged to commercially exploited species, highlighting the importance of this MPA as a nursery area for the early life stages of the fish population. Overall, these new findings emphasize the role of MPAs in ensuring the connectivity of fish species between marine-estuarine habitats and enhancing the conservation of fish populations.

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Small scale temporal patterns of recruitment and hatching of Atlantic horse mackerel (L.) at a nearshore reef area

Cited by 6 publications

References 72 publications

Using Aggregating Devices to Sample Fish Recruits Around Deep Shipwrecks: Experiments and Suggestions

Using Aggregating Devices to Sample Fish Recruits Around Deep Shipwrecks: Experiments and Suggestions

Length-based stock assessment of the pacific yellowtail emperor in the Southern Sulawesi, Indonesia

Assessing Environmental Control on Temporal and Spatial Patterns of Larval Fish Assemblages in a Marine Protected Area

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