Blue mussel aquaculture in Chile: Small or large scale industry?

González-Poblete, Exequiel; Hurtado, Carlos; Rojo, S Claudia; Norambuena, C Ricardo

doi:10.1016/j.aquaculture.2018.04.026

Cited by 29 publications

(7 citation statements)

References 4 publications

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“…Of the native species, only S. algosus is not of commercial interest, and M. chilensis is the main species of commercial interest in the study area (Kamermans and Capelle, 2019). In the last three decades, mytilid production has been steadily increasing in Chile, with a current production of over 330,000 tonnes yearly (Gonzalez-Poblete et al, 2018). In Chile, the seeding of spat is mainly carried out by organizations of artisanal fishermen within their AMERBs and by independent fishermen and aquaculture farmers who have transitory permits in their aquaculture concessions (Contreras and Godoy, 2021).…”

Section: Discussionmentioning

confidence: 99%

Settlement experiment of spat using three different collectors in two contrasting coastal sites from Chile (SE Pacific Ocean)

et al. 2022

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Most of the marine bivalve production comes from aquaculture and only 11% comes from the wild fishery. For example, mussel aquaculture still strongly relies on spat - the recently settled juveniles. Gaps of information on the recruitment and settlement of spat are important drawbacks for the development of mussel aquaculture in several geographic regions. We here study these processes using three collectors (Anchovy mesh, Rope and Raschel mesh) throughout one year in two coastal sites of Central Chile (Coliumo and Punta Lobería) at three depths (2, 4 and 6 m). Five spat species were settled in the collectors, i.e. Aulacomya atra, Choromytilus chorus, Mytilus chilensis, Mytilus galloprovincialis and Semimytilus algosus. Recruitment was consistently higher during summer and autumn at both sites. Different seasonal recruitment patterns were observed regarding the spat species. Spat collection of the former mytilid species occurs from spring to autumn with the exception of M. galloprovincialis in Coliumo and M. chilensis in Punta Lobería. M. galloprovincialis is settled mostly in autumn and summer, and M. chilensis during winter. There were also differences when considering the collector type, mostly due to A. atra and S. algosus which peaked in nylon rope. Spat collection of the commercial species M. chilensis should be preferentially carried out in nylon rope during autumn in Coliumo and summer and autumn in Punta Lobería. During summer and autumn, also S. algosus will be settled. These results will enable the implementation of management measures to promote mytilid culture on the coastal zone of the Biobío region.

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Section: Discussionmentioning

confidence: 99%

Settlement experiment of spat using three different collectors in two contrasting coastal sites from Chile (SE Pacific Ocean)

et al. 2022

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“…It is also discouraging that only small quantities of these bivalves are consumed in the islands, so production volumes would have to be scaled to suit processing and transport capabilities. Nevertheless, the blue mussel (Mytilus edulis) aquaculture industry in Chile has solved all these problems of integration and could be a model worth following (Gonzalez-Poblete et al, 2018).…”

Section: Fish and Shellfish In Recorded Historymentioning

confidence: 99%

Saving the planet with appropriate biotechnology: 2. Cultivate shellfish to remediate the atmosphere

Moore¹,

Heilweck²,

Petros³

2021

Mexjbiotechnol

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Shellfish cultivation is the only industry on the planet that (a) feeds us, (b) permanently removes CO2 from our atmosphere, and, with care, could (c) engineer our marine habitats to maintain the health and biodiversity of those ecosystems into the future. About 30-50% of shellfish biomass is represented by the animals’ shells, and shellfish shell is made by converting atmospheric CO2 into crystalline calcium carbonate which is stable for geological periods of time. The human tradition of eating shellfish is recorded in the ancient middens of shellfish shells that track migrations of early humans around the world. Recent history shows increasing exploitation of marine resources by an ever-growing human population. By the end of the 19th century oysters had become a cheap staple food on both sides of the Atlantic, but this oyster dredging destroyed 85% of the world’s oyster beds. In the tropics, Giant Clams have also been fished to extinction in many Indian Ocean and Pacific waters. In the 21st century, these animals deserve to have the same vigour applied to their restoration and conservation as we applied to dredging them from the seabed. In return they will cleanse our atmosphere by permanently sequestering its excess CO2 into limestone. And we must start now, before Homo sapiens is added to the list of organisms driven to extinction by humanity’s follies.

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“…The mussels attach themselves to the ropes or nets and grow there until they reach market size, which typically takes about 18–24 months. The mussels feed on natural phytoplankton in the water, and their growth and survival depend on the availability and quality of this food source [ 1 ]. In Chile, the aquaculture of M. chilensis is an important industry, with production levels that have been steadily increasing over the years.…”

Section: Introductionmentioning

confidence: 99%

Chromosome-Level Genome Assembly of the Blue Mussel Mytilus chilensis Reveals Molecular Signatures Facing the Marine Environment

Gallardo‐Escárate

Valenzuela-Muñoz

Núñez‐Acuña

et al. 2023

Genes

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The blue mussel Mytilus chilensis is an endemic and key socioeconomic species inhabiting the southern coast of Chile. This bivalve species supports a booming aquaculture industry, which entirely relies on artificially collected seeds from natural beds that are translocated to diverse physical–chemical ocean farming conditions. Furthermore, mussel production is threatened by a broad range of microorganisms, pollution, and environmental stressors that eventually impact its survival and growth. Herein, understanding the genomic basis of the local adaption is pivotal to developing sustainable shellfish aquaculture. We present a high-quality reference genome of M. chilensis, which is the first chromosome-level genome for a Mytilidae member in South America. The assembled genome size was 1.93 Gb, with a contig N50 of 134 Mb. Through Hi-C proximity ligation, 11,868 contigs were clustered, ordered, and assembled into 14 chromosomes in congruence with the karyological evidence. The M. chilensis genome comprises 34,530 genes and 4795 non-coding RNAs. A total of 57% of the genome contains repetitive sequences with predominancy of LTR-retrotransposons and unknown elements. Comparative genome analysis of M. chilensis and M. coruscus was conducted, revealing genic rearrangements distributed into the whole genome. Notably, transposable Steamer-like elements associated with horizontal transmissible cancer were explored in reference genomes, suggesting putative relationships at the chromosome level in Bivalvia. Genome expression analysis was also conducted, showing putative genomic differences between two ecologically different mussel populations. The evidence suggests that local genome adaptation and physiological plasticity can be analyzed to develop sustainable mussel production. The genome of M. chilensis provides pivotal molecular knowledge for the Mytilus complex.

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Blue mussel aquaculture in Chile: Small or large scale industry?

Cited by 29 publications

References 4 publications

Settlement experiment of spat using three different collectors in two contrasting coastal sites from Chile (SE Pacific Ocean)

Settlement experiment of spat using three different collectors in two contrasting coastal sites from Chile (SE Pacific Ocean)

Saving the planet with appropriate biotechnology: 2. Cultivate shellfish to remediate the atmosphere

Chromosome-Level Genome Assembly of the Blue Mussel Mytilus chilensis Reveals Molecular Signatures Facing the Marine Environment

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