The potential impacts of climate change on inshore squid: biology, ecology and fisheries

By G. Pecl, G. Jackson. Reviews in Fish Biology and Fisheries, 2008

183 citations recorded by the source corpus.

Squid are important components of many marine ecosystems from the poles to the equator, serving as both important predators and prey. Novel aspects of their growth and reproduction mean that they are likely to play an important role in the changing oceans due to climate change. Virtually every facet of squid life-history examined thus far has revealed an incredible capacity in this group for life-history plasticity. The extremely fast growth rates of individuals and rapid rates of turnover at the population level mean that squid can respond quickly to environmental or ecosystem change. Their ‘life-in-the-fast-lane’ life-style allows them to rapidly exploit ‘vacuums’ created in the ecosystem when predators or competitors are removed. In this way, they function as ‘weeds of the sea’. Elevated temperatures accelerate the life-histories of squid, increasing their growth rates and shortening their life-spans. At first glance, it would be logical to suggest that rising water temperatures associated with climate change (if food supply remains adequate) would be beneficial to inshore squid populations and fisheries—growth rates would increase, life spans would shorten and population turnover would accelerate. However, the response of inshore squid populations to climate change is likely to be extremely complex. The size of hatchlings emerging from the eggs becomes smaller as temperatures increase and hatchling size may have a critical influence on the size-at-age that may be achieved as adults and subsequently, population structure. The influence of higher temperatures on the egg and adult stages may thus be opposing forces on the life-history. The process of climate change will likely result in squids that hatch out smaller and earlier, undergo faster growth over shorter life-spans and mature younger and at a smaller size. Individual squid will require more food per unit body size, require more oxygen for faster metabolisms and have a reduced capacity to cope without food. It is therefore likely that biological, physiological and behavioural changes in squid due to climate change will have far reaching effects.

Subfields: Cellular and Molecular Neuroscience, Ecology, Evolution, Behavior and Systematics, Global and Planetary Change

View Paper: https://www.semanticscholar.org/paper/fd0679d203fb94c5423aec2dc336f89cdcd559cd

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Cellular and Molecular Neuroscience

1. G. Pecl
2. R. Villanueva
3. A. Arkhipkin
4. N. Moltschaniwskyj
5. G. Jackson

In Ecology, Evolution, Behavior and Systematics

1. G. Pecl
2. N. Moltschaniwskyj
3. Rui Rosa
4. R. Villanueva
5. A. Arkhipkin
6. Y. Cherel
7. V. Laptikhovsky
8. Xinjun Chen

In Global and Planetary Change

1. G. Pecl
2. Graham J. Pierce
3. Y. Cherel
4. N. Moltschaniwskyj
5. O. Katugin
6. V. Laptikhovsky
7. Xinjun Chen
8. Hassan Moustahfid

Citations in the corpus

• World Squid Fisheries (2015, background): “Due to the mobility of the species and its flexible life history, the species may be quite resilient with a high capacity for adaptation (Pecl and Jackson, 2008).”
• Cannibalism in cephalopods (2010, unknown): “Under adverse environmental conditions where primary productivity is reduced, the rate of cannibalism of cephalopods is likely to increase with the consequence of decreasing biomasses due to the elevated level of cannibalism (Pecl and Jackson 2008).”
• Future challenges in cephalopod research* (2014, background): “Warming will increase growth rate (subject to food availability and sufficient water oxygen), shorten lifespan, and increase turnover, which in turn might drive changes in life history parameters (Pecl & Jackson, 2008).”